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137 Free Courses.
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Every course is 5 days, completely self-paced, and free forever. No registration required. No videos. Just hands-on lessons with real code you write yourself. Each lesson takes 45–90 minutes.

137Courses
695Lessons
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Featured Course
AI Agents Course: Build Autonomous AI Systems
Free 5-day AI agents course. Build autonomous AI systems from scratch — tools, memory, multi-agent systems, and produc...
5-Day Course•Self-paced•Free forever
ai automation — Photo by Sasun Bughdaryan on Unsplash
Programming
Python for AI
5 days · Free
 analytics — Photo by Jakub Żerdzicki on Unsplash
AI & Tools
AI Automation: No Code
5 days · Free
 ai agents — Photo by Declan Sun on Unsplash
AI & Tools
Web Analytics
5 days · Free
Most Popular in AI & Tools
LLMs, agents, RAG, prompt engineering, fine-tuning
See all →
ai automation — Photo by Shahabudin Ibragimov on Unsplash
5 Days
Free
AI & Tools
AI Agents Course: Build Autonomous AI Systems
Free 5-day AI agents course. Build autonomous AI systems from scratch — tools, memory, multi-agent systems, an
⏱ 5 days 📖 Self-paced
analytics — Photo by Jakub Żerdzicki on Unsplash
5 Days
Free
AI & Tools
AI Automation: No Code
Free no-code AI automation course. Learn Zapier + AI, Make, n8n, automated email and document workflows, and b
⏱ 5 days 📖 Self-paced
chatbot — Photo by kuu akura on Unsplash
5 Days
Free
AI & Tools
Web Analytics
Free 5-day web analytics course. GA4 setup, event tracking, conversion measurement, dashboards, and reporting
⏱ 5 days 📖 Self-paced
chatgpt — Photo by Emiliano Vittoriosi on Unsplash
5 Days
Free
AI & Tools
Build an AI Chatbot with Node.js
Free 5-day course. Build a production AI chatbot with Node.js, Express, and the Anthropic Claude API. Streamin
⏱ 5 days 📖 Self-paced
claude code — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
AI & Tools
ChatGPT Course
Free 5-day ChatGPT course. Go from basic chat to Custom GPTs, data analysis, AI stacks, and workflows that sav
⏱ 5 days 📖 Self-paced
claude desktop — Photo by Omar:. Lopez-Rincon on Unsplash
5 Days
Free
AI & Tools
Claude Code Course
Free 5-day Claude Code course. Learn to use Anthropic's CLI coding agent for multi-file projects, debugging, t
⏱ 5 days 📖 Self-paced
claude — Photo by Omar:. Lopez-Rincon on Unsplash
5 Days
Free
AI & Tools
Claude Desktop Course
Free 5-day Claude Desktop course. Learn MCP, projects, file access, and advanced workflows. Go from beginner t
⏱ 5 days 📖 Self-paced
cursor — Photo by Mirella Callage on Unsplash
5 Days
Free
AI & Tools
How to Use Claude AI
Free 5-day course: learn how to use Claude AI for real work. Documents, writing, projects, and advanced workfl
⏱ 5 days 📖 Self-paced
data analysis — Photo by Zach M on Unsplash
5 Days
Free
AI & Tools
Cursor IDE Mastery
Master the Cursor IDE in 5 days. Tab completion, Composer, .cursorrules, and Claude Code integration. Free sel
⏱ 5 days 📖 Self-paced
csharp — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
AI & Tools
Data Analysis with AI
Learn data analysis with AI in 5 days. Go from spreadsheets to Python, pandas, and AI-powered insights. Free s
⏱ 5 days 📖 Self-paced
Top Programming Courses
Python, JavaScript, Rust, Go, C++, and more
See all →
java — Photo by Mohammad Rahmani on Unsplash
5 Days
Free
Programming
C#
Free 5-day C# course. .NET fundamentals, ASP.NET Core APIs, Entity Framework, Blazor UI, and deploying to the
⏱ 5 days 📖 Self-paced
js ai — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Java
Free 5-day Java course. OOP, collections, Spring Boot REST APIs, JDBC database access, and deploying Java appl
⏱ 5 days 📖 Self-paced
kotlin — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Programming
JavaScript AI Development
Free 5-day course on building AI apps with JavaScript and the Anthropic Claude API. Streaming, Express servers
⏱ 5 days 📖 Self-paced
php — Photo by Chris Ried on Unsplash
5 Days
Free
Programming
Kotlin
Free 5-day Kotlin course. Kotlin syntax, Android basics, Jetpack Compose UI, Room database, and publishing to
⏱ 5 days 📖 Self-paced
python ai — Photo by Emmanuel Edward on Unsplash
5 Days
Free
Programming
PHP
Free 5-day PHP course. PHP syntax, Laravel framework, Eloquent ORM, authentication, and deploying to productio
⏱ 5 days 📖 Self-paced
rust — Photo by Rakib Bin Aziz on Unsplash
5 Days
Free
Programming
Python for AI
Learn Python for AI in 5 days. Build real data pipelines, call AI APIs, and analyze data with pandas. Free sel
⏱ 5 days 📖 Self-paced
swift — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Programming
Rust
Free 5-day Rust course. Ownership, borrowing, structs, traits, and async Rust — practical systems programming
⏱ 5 days 📖 Self-paced
assembly — Photo by Chris Stein on Unsplash
5 Days
Free
Programming
Swift
Free 5-day Swift course. Swift syntax, SwiftUI views, networking, CoreData persistence, and App Store submissi
⏱ 5 days 📖 Self-paced
c — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Assembly Language
Free 5-day assembly language course. x86-64 registers, memory, arithmetic, system calls, and calling conventio
⏱ 5 days 📖 Self-paced
aws ai — Photo by Growtika on Unsplash
5 Days
Free
Programming
C Programming
Free 5-day C programming course. Pointers, memory management, structs, file I/O, and building command-line too
⏱ 5 days 📖 Self-paced
Cloud & DevOps
AWS, Azure, GCP, Kubernetes, Docker, Terraform
See all →
aws deploy — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
AWS for AI
Learn AWS for AI in 5 days. AWS Bedrock, S3, Lambda, Knowledge Bases, and deploying AI apps. Free self-paced c
⏱ 5 days 📖 Self-paced
azure — Photo by Rubaitul Azad on Unsplash
5 Days
Free
Cloud & DevOps
Deploy to AWS
Learn to deploy on AWS from scratch in 5 days. Static sites, Python apps, RDS databases, custom domains, HTTPS
⏱ 5 days 📖 Self-paced
cicd — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Azure
Free 5-day Azure in 5 Days course. Azure is the cloud platform of choice for enterprise and government. Learn
⏱ 5 days 📖 Self-paced
docker ai — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
CI/CD
Free 5-day CI/CD in 5 Days course. Continuous Integration and Continuous Deployment automate testing and shipp
⏱ 5 days 📖 Self-paced
gcp — Photo by appshunter.io on Unsplash
5 Days
Free
Cloud & DevOps
Docker for AI Applications
Free 5-day course on Docker for AI apps. Build, containerize, compose, and deploy Python AI applications to AW
⏱ 5 days 📖 Self-paced
kubernetes — Photo by Ian Taylor on Unsplash
5 Days
Free
Cloud & DevOps
Google Cloud
Free 5-day Google Cloud in 5 Days course. Google Cloud powers YouTube, Gmail, and thousands of enterprise syst
⏱ 5 days 📖 Self-paced
linux admin — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Kubernetes
Free 5-day Kubernetes in 5 Days course. Kubernetes is the industry standard for container orchestration. Learn
⏱ 5 days 📖 Self-paced
linux — Photo by Thimo Pedersen on Unsplash
5 Days
Free
Cloud & DevOps
Linux Administration
Free 5-day Linux administration course. Users, services, storage, networking, and shell automation.
⏱ 5 days 📖 Self-paced
terraform — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Linux
Free 5-day Linux in 5 Days course. Every server runs Linux. Learn the terminal, file system, permissions, proc
⏱ 5 days 📖 Self-paced
api development — Photo by Deng Xiang on Unsplash
5 Days
Free
Cloud & DevOps
Terraform
Free 5-day Terraform in 5 Days course. Terraform lets you define your entire cloud infrastructure as code. Ver
⏱ 5 days 📖 Self-paced
Backend & Data
Databases, APIs, data engineering, ML pipelines
See all →
data engineering — Photo by Gabriela on Unsplash
5 Days
Free
Backend & Data
API Development for AI
Free 5-day course on building AI-powered APIs with FastAPI. Build REST endpoints, add AI capabilities, handle
⏱ 5 days 📖 Self-paced
data modeling — Photo by Pankaj Patel on Unsplash
5 Days
Free
Backend & Data
Data Engineering
Free 5-day Data Engineering in 5 Days course. Data engineers build the pipelines that make data useful. Learn
⏱ 5 days 📖 Self-paced
database internals — Photo by Alexandra Vázquez on Unsplash
5 Days
Free
Backend & Data
Data Modeling
Free 5-day data modeling course. ER diagrams, normalization, dimensional modeling, NoSQL patterns, schema evol
⏱ 5 days 📖 Self-paced
django — Photo by KOBU Agency on Unsplash
5 Days
Free
Backend & Data
Database Internals
Free 5-day database internals course. B-trees, WAL, MVCC, query planning, and storage engines.
⏱ 5 days 📖 Self-paced
express — Photo by Markus Winkler on Unsplash
5 Days
Free
Backend & Data
Django
Free 5-day Django in 5 Days course. Django is the fastest way to build a production-ready web application in P
⏱ 5 days 📖 Self-paced
firebase — Photo by Felicia Montenegro on Unsplash
5 Days
Free
Backend & Data
Express.js
Free 5-day Express.js in 5 Days course. Express is the most popular Node.js framework. Build REST APIs, connec
⏱ 5 days 📖 Self-paced
flask — Photo by KOBU Agency on Unsplash
5 Days
Free
Backend & Data
Firebase
Free 5-day Firebase in 5 Days course. Firebase is Google's app development platform. Get authentication, a NoS
⏱ 5 days 📖 Self-paced
go — Photo by Laine Cooper on Unsplash
5 Days
Free
Backend & Data
Flask
Free 5-day Flask in 5 Days course. Flask is a lightweight Python web framework that gives you just what you ne
⏱ 5 days 📖 Self-paced
graphql — Photo by Markus Winkler on Unsplash
5 Days
Free
Backend & Data
Go
Free 5-day Go course. Goroutines, channels, HTTP servers, CLI tools, and deploying Go applications to producti
⏱ 5 days 📖 Self-paced
angular — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Backend & Data
GraphQL
Free 5-day GraphQL in 5 Days course. GraphQL replaces REST for complex APIs. Clients ask for exactly what they
⏱ 5 days 📖 Self-paced
Frontend & Mobile
React, Next.js, Vue, mobile development
See all →
flutter — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Frontend & Mobile
Angular
Free 5-day Angular in 5 Days course. Build full-featured web applications with Angular's powerful component ar
⏱ 5 days 📖 Self-paced
nextjs — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Frontend & Mobile
Flutter
Free 5-day Flutter in 5 Days course. Flutter uses Dart and renders its own UI — pixel-perfect on iOS, Android,
⏱ 5 days 📖 Self-paced
react ai — Photo by Timothy Cuenat on Unsplash
5 Days
Free
Frontend & Mobile
Next.js Full-Stack
Learn Next.js from scratch in 5 days. Pages, routing, server components, API routes, Prisma, Auth, and Vercel
⏱ 5 days 📖 Self-paced
react native — Photo by Lautaro Andreani on Unsplash
5 Days
Free
Frontend & Mobile
React + AI
Free 5-day course on building AI-powered web apps with React. Call AI APIs, build streaming chat interfaces, a
⏱ 5 days 📖 Self-paced
svelte — Photo by Lautaro Andreani on Unsplash
5 Days
Free
Frontend & Mobile
React Native
Free 5-day React Native in 5 Days course. Write one codebase and ship iOS and Android apps. React Native uses
⏱ 5 days 📖 Self-paced
tailwind — Photo by Subramanian S on Unsplash
5 Days
Free
Frontend & Mobile
Svelte
Free 5-day Svelte in 5 Days course. Svelte compiles away the framework at build time — no virtual DOM, smaller
⏱ 5 days 📖 Self-paced
vue — Photo by Artturi Jalli on Unsplash
5 Days
Free
Frontend & Mobile
Tailwind CSS
Free 5-day Tailwind CSS in 5 Days course. Stop writing custom CSS. Tailwind's utility classes let you build be
⏱ 5 days 📖 Self-paced
ccna — Photo by Zulfugar Karimov on Unsplash
5 Days
Free
Frontend & Mobile
Vue.js
Free 5-day Vue.js course. Learn components, reactivity, Pinia state management, Vue Router, and deployment. Pr
⏱ 5 days 📖 Self-paced
Security & Networking
Cybersecurity, compliance, networking, federal AI
See all →
cisco — Photo by Sasun Bughdaryan on Unsplash
5 Days
Free
Security & Networking
CCNA Prep
Free 5-day CCNA prep course. Routing, switching, IP services, security, and automation for the Cisco CCNA exam
⏱ 5 days 📖 Self-paced
comptia a plus — Photo by Sasun Bughdaryan on Unsplash
5 Days
Free
Security & Networking
Cisco Networking
Free 5-day Cisco networking course. IOS CLI, routing protocols, ACLs, NAT, and CCNA exam prep.
⏱ 5 days 📖 Self-paced
cybersecurity ai — Photo by Sasun Bughdaryan on Unsplash
5 Days
Free
Security & Networking
CompTIA A+
Free 5-day CompTIA A+ prep course. Hardware, networking, mobile, troubleshooting, and exam strategies.
⏱ 5 days 📖 Self-paced
network admin — Photo by Sasun Bughdaryan on Unsplash
5 Days
Free
Security & Networking
Cybersecurity + AI
Learn how AI is transforming cybersecurity. Threat detection, LLM-powered log analysis, AI vulnerability scann
⏱ 5 days 📖 Self-paced
networking — Photo by Steve A Johnson on Unsplash
5 Days
Free
Security & Networking
Network Administration
Free 5-day network administration course. Switches, routers, VLANs, DHCP, DNS, and monitoring.
⏱ 5 days 📖 Self-paced
security plus — Photo by Norbu GYACHUNG on Unsplash
5 Days
Free
Security & Networking
Networking for Developers
Free 5-day Networking for Developers course. DNS, HTTP, TCP/IP, load balancers, CDNs — you use these every day
⏱ 5 days 📖 Self-paced
tcp ip — Photo by Zulfugar Karimov on Unsplash
5 Days
Free
Security & Networking
Security+
Free 5-day CompTIA Security+ prep course. Threats, architecture, implementation, operations, and exam strategi
⏱ 5 days 📖 Self-paced
web security — Photo by Sasun Bughdaryan on Unsplash
5 Days
Free
Security & Networking
TCP/IP Deep Dive
Free 5-day TCP/IP course. OSI model, IP addressing, routing, TCP vs UDP, and hands-on Wireshark packet analysi
⏱ 5 days 📖 Self-paced
windows server — Photo by Shubham Dhage on Unsplash
5 Days
Free
Security & Networking
Web Security for AI Apps
Free 5-day course on web security for AI applications. JWT, OAuth 2.0, CSRF, XSS, rate limiting, and productio
⏱ 5 days 📖 Self-paced
antigravity — Photo by Joshua Aragon on Unsplash
5 Days
Free
Security & Networking
Windows Server
Free 5-day Windows Server course. Active Directory, Group Policy, IIS, PowerShell automation, and Hyper-V.
⏱ 5 days 📖 Self-paced
Hardware & Systems
Arduino, Pi, embedded, robotics, IoT, drones
See all →
build pc — Photo by Backpack Studio on Unsplash
5 Days
Free
Hardware & Systems
Google Antigravity
Free 5-day Google Antigravity in 5 Days course. Google Antigravity is agent-first development — set up your pr
⏱ 5 days 📖 Self-paced
circuits — Photo by Sahand Babali on Unsplash
5 Days
Free
Hardware & Systems
Build a PC
Free 5-day PC building course. Components, compatibility, assembly, BIOS setup, and troubleshooting.
⏱ 5 days 📖 Self-paced
computer architecture — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Circuit Basics
Free 5-day electronics course. Voltage, current, resistors, capacitors, and hands-on breadboard projects.
⏱ 5 days 📖 Self-paced
how cpus work — Photo by Mohamed Nohassi on Unsplash
5 Days
Free
Hardware & Systems
Computer Architecture
Free 5-day computer architecture course. CPU design, memory hierarchy, cache, pipelines, and GPU architecture
⏱ 5 days 📖 Self-paced
os fundamentals — Photo by Jean Carlo Emer on Unsplash
5 Days
Free
Hardware & Systems
How CPUs Work
Free 5-day course on CPU internals. Transistors, logic gates, ALU, instruction execution, and modern CPU desig
⏱ 5 days 📖 Self-paced
pcb design — Photo by Brian Wangenheim on Unsplash
5 Days
Free
Hardware & Systems
How Operating Systems Work
Free 5-day operating systems course. Processes, memory, file systems, scheduling, and virtual memory.
⏱ 5 days 📖 Self-paced
raspberry pi — Photo by Jeff Loucks on Unsplash
5 Days
Free
Hardware & Systems
PCB Design
Free 5-day PCB design course. Schematics, layout, component selection, KiCad, and manufacturing.
⏱ 5 days 📖 Self-paced
sensors — Photo by Robin Glauser on Unsplash
5 Days
Free
Hardware & Systems
Raspberry Pi
Free 5-day Raspberry Pi course. Setup, GPIO, Python projects, sensors, and IoT integration.
⏱ 5 days 📖 Self-paced
arduino — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Sensors and Actuators
Free 5-day sensors and actuators course. Temperature, motion, light sensors, motors, and microcontroller integ
⏱ 5 days 📖 Self-paced
agile — Photo by Walls.io on Unsplash
5 Days
Free
Hardware & Systems
Arduino
Free 5-day Arduino course. Microcontrollers, sensors, actuators, breadboard wiring, and your first embedded pr
⏱ 5 days 📖 Self-paced
Career & Engineering
Interview, system design, negotiation, freelancing
See all →
clean code — Photo by Amina Atar on Unsplash
5 Days
Free
Engineering & Career
Agile & Scrum
Free 5-day Agile and Scrum course. Sprints, ceremonies, user stories, estimation, and tools — practical for de
⏱ 5 days 📖 Self-paced
design patterns — Photo by Mina Rad on Unsplash
5 Days
Free
Engineering & Career
Clean Code
Free 5-day clean code course. Naming, functions, SOLID principles, refactoring techniques, and running effecti
⏱ 5 days 📖 Self-paced
dsa — Photo by Resume Genius on Unsplash
5 Days
Free
Engineering & Career
Design Patterns
Free 5-day Design Patterns in 5 Days course. Design patterns are proven solutions to recurring software proble
⏱ 5 days 📖 Self-paced
git ai — Photo by Resume Genius on Unsplash
5 Days
Free
Engineering & Career
Data Structures & Algorithms
Free 5-day data structures and algorithms course. Arrays, trees, graphs, sorting, and dynamic programming with
⏱ 5 days 📖 Self-paced
open source — Photo by Patrick Martin on Unsplash
5 Days
Free
Engineering & Career
Git and GitHub for AI Projects
Free 5-day Git and GitHub course. Learn commits, branches, pull requests, GitHub Actions, and managing AI proj
⏱ 5 days 📖 Self-paced
seo — Photo by Luke Chesser on Unsplash
5 Days
Free
Engineering & Career
Open Source
Free 5-day open source course. Finding issues, making pull requests, understanding licenses, maintaining a rep
⏱ 5 days 📖 Self-paced
shopify — Photo by Zest Tea on Unsplash
5 Days
Free
Engineering & Career
SEO
Free 5-day SEO course. Keyword research, on-page SEO, technical SEO, content strategy, and link building that
⏱ 5 days 📖 Self-paced
system design — Photo by andy chiu on Unsplash
5 Days
Free
Engineering & Career
Shopify Development
Free 5-day Shopify development course. Themes, Liquid templating, Shopify apps, checkout customization, and st
⏱ 5 days 📖 Self-paced
tech interview — Photo by Amina Atar on Unsplash
5 Days
Free
Engineering & Career
System Design
Free 5-day system design course. Learn scalability, caching, databases, load balancing, and how to design real
⏱ 5 days 📖 Self-paced
ai consulting — Photo by Jakub Żerdzicki on Unsplash
5 Days
Free
Engineering & Career
Tech Interview Prep with AI
Free 5-day course on using AI to prepare for technical interviews. DSA practice, system design, behavioral sto
⏱ 5 days 📖 Self-paced
Business & Industry
AI for specific industries, consulting, automation
See all →
ai education — Photo by Michał Parzuchowski on Unsplash
5 Days
Free
Business & Industry
AI for Consultants
Free 5-day course for consultants. Learn to use AI for research, deliverables, client engagement, and strategy
⏱ 5 days 📖 Self-paced
ai finance — Photo by lonely blue on Unsplash
5 Days
Free
Business & Industry
AI for Education
Free AI course for teachers and educators. Learn AI tools for lesson planning, grading, assessment, academic i
⏱ 5 days 📖 Self-paced
ai freelancing — Photo by TheStandingDesk on Unsplash
5 Days
Free
Business & Industry
AI for Finance Professionals
Free AI course for finance professionals. Learn AI tools for financial analysis, automated reconciliation, for
⏱ 5 days 📖 Self-paced
ai healthcare — Photo by Markus Frieauff on Unsplash
5 Days
Free
Business & Industry
AI for Freelancers
Free 5-day course for freelancers. Use AI to find clients, price your work, write proposals, deliver faster, a
⏱ 5 days 📖 Self-paced
ai hr — Photo by Zulfugar Karimov on Unsplash
5 Days
Free
Business & Industry
AI for Healthcare Professionals
Free AI course for healthcare professionals. Learn clinical AI tools, AI for documentation, ethics, and how to
⏱ 5 days 📖 Self-paced
ai legal — Photo by Tingey Injury Law Firm on Unsplash
5 Days
Free
Business & Industry
AI for HR Professionals
Free 5-day course for HR professionals. Use AI for recruiting, performance reviews, policy writing, and HR ana
⏱ 5 days 📖 Self-paced
ai managers — Photo by john renzzel on Unsplash
5 Days
Free
Business & Industry
AI for Legal Professionals
Free AI course for lawyers and legal professionals. Learn AI for contract review, legal research, due diligenc
⏱ 5 days 📖 Self-paced
ai marketing — Photo by Declan Sun on Unsplash
5 Days
Free
Business & Industry
AI for Managers
Free 5-day course for managers and business leaders. Evaluate AI tools, build business cases, lead pilots, and
⏱ 5 days 📖 Self-paced
ai pm — Photo by Colin White on Unsplash
5 Days
Free
Business & Industry
AI for Marketing
Learn to use AI for content creation, SEO, social media, email, and building an AI-first marketing strategy. F
⏱ 5 days 📖 Self-paced
calculus ai — Photo by byVlado on Unsplash
5 Days
Free
Business & Industry
AI for Project Managers
Learn how AI transforms project management in 5 days. Planning, scheduling, status reporting, risk management,
⏱ 5 days 📖 Self-paced
Math & Theory
Statistics, calculus, linear algebra for ML
See all →
discrete math — Photo by Viktor Talashuk on Unsplash
5 Days
Free
Math & Theory
Calculus for AI
Free 5-day calculus for AI course. Derivatives, gradients, chain rule, optimization, and gradient descent.
⏱ 5 days 📖 Self-paced
distributed systems — Photo by Debby Hudson on Unsplash
5 Days
Free
Math & Theory
Discrete Math
Free 5-day discrete mathematics course. Logic, sets, graph theory, combinatorics, and mathematical proofs.
⏱ 5 days 📖 Self-paced
linear algebra — Photo by ROBIN WORRALL on Unsplash
5 Days
Free
Math & Theory
Distributed Systems
Free 5-day distributed systems course. CAP theorem, consensus, replication, sharding, and eventual consistency
⏱ 5 days 📖 Self-paced
statistics — Photo by Elijah Crouch on Unsplash
5 Days
Free
Math & Theory
Linear Algebra for ML
Free 5-day linear algebra for machine learning course. Vectors, matrices, eigenvalues, PCA, and AI application
⏱ 5 days 📖 Self-paced
distributed systems — Photo by Egor Gordeev on Unsplash
5 Days
Free
Math & Theory
Statistics for Data Science
Learn statistics for data science in 5 days. Descriptive stats, probability, hypothesis testing, regression, a
⏱ 5 days 📖 Self-paced

Browse All 137 Courses

New to AI? Start here.
The free 5-Day Foundations course is the best starting point. Day 1: make your first AI API call. Day 5: deploy a working AI app to the internet. Zero assumed knowledge. Takes about an hour per day.
Start Free Foundations Course Browse All 138 Courses

Learning Paths

Not sure which course to take first? Follow one of these curated paths.

Path 1 — The Builder
For developers who want to ship AI products
1
Python for AI
5 days
→
2
AI Foundations
5 days
→
3
AI Agents
5 days
→
4
Vibe Coding
5 days
Path 2 — The Power User
For professionals who want to use AI faster
1
Prompt Engineering
5 days
→
2
Claude Desktop
5 days
→
3
ChatGPT
5 days
→
4
Claude
5 days
Path 3 — The Leader
For managers and government professionals
1
AI for Managers
5 days
→
2
Prompt Engineering
5 days
→
3
Federal AI
5 days
Path 4 — The Full-Stack Dev
From frontend to backend to cloud deployment
1
React + AI
5 days
→
2
Node.js / Express
5 days
→
3
PostgreSQL
5 days
→
4
Deploy to AWS
5 days
Path 5 — The Security Pro
From Linux fundamentals to SOC operations
1
Linux
5 days
→
2
Network Security
5 days
→
3
Ethical Hacking
5 days
→
4
Security+ & SOC
5 days each
Path 6 — The Hardware Engineer
From circuit theory to deployed IoT systems
1
Circuit Basics
5 days
→
2
Arduino
5 days
→
3
Raspberry Pi
5 days
→
4
IoT → Edge Computing
5 days each

All 137 Free Courses

Every course is 5 days, self-paced, and free forever. No account needed — click any course and start reading. Each day takes 45–90 minutes and ends with working code you built yourself.

Showing 137 courses

agile — Photo by Lala Azizli on Unsplash
5 Days
Free
Engineering & Career
Agile & Scrum
Free 5-day Agile and Scrum course. Sprints, ceremonies, user stories, estimation, and tools — practical for developers...
Start Course Free
ai agents — Photo by Possessed Photography on Unsplash
5 Days
Free
AI & Tools
AI Agents Course: Build Autonomous AI Systems
Free 5-day AI agents course. Build autonomous AI systems from scratch — tools, memory, multi-agent systems, and produc...
Start Course Free
ai automation — Photo by Dexter Jacobs on Unsplash
5 Days
Free
AI & Tools
AI Automation: No Code
Free no-code AI automation course. Learn Zapier + AI, Make, n8n, automated email and document workflows, and build a c...
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5 Days
Free
Business & Industry
AI for Consultants
Free 5-day course for consultants. Learn to use AI for research, deliverables, client engagement, and strategy. Practi...
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5 Days
Free
Business & Industry
AI for Education
Free AI course for teachers and educators. Learn AI tools for lesson planning, grading, assessment, academic integrity...
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ai finance — Photo by m. on Unsplash
5 Days
Free
Business & Industry
AI for Finance Professionals
Free AI course for finance professionals. Learn AI tools for financial analysis, automated reconciliation, forecasting...
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ai freelancing — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Business & Industry
AI for Freelancers
Free 5-day course for freelancers. Use AI to find clients, price your work, write proposals, deliver faster, and scale...
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ai healthcare — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Business & Industry
AI for Healthcare Professionals
Free AI course for healthcare professionals. Learn clinical AI tools, AI for documentation, ethics, and how to build A...
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ai hr — Photo by Kelly Sikkema on Unsplash
5 Days
Free
Business & Industry
AI for HR Professionals
Free 5-day course for HR professionals. Use AI for recruiting, performance reviews, policy writing, and HR analytics.
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5 Days
Free
Business & Industry
AI for Legal Professionals
Free AI course for lawyers and legal professionals. Learn AI for contract review, legal research, due diligence, confi...
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5 Days
Free
Business & Industry
AI for Managers
Free 5-day course for managers and business leaders. Evaluate AI tools, build business cases, lead pilots, and create...
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5 Days
Free
Business & Industry
AI for Marketing
Learn to use AI for content creation, SEO, social media, email, and building an AI-first marketing strategy. Free 5-da...
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ai pm — Photo by Bluestonex on Unsplash
5 Days
Free
Business & Industry
AI for Project Managers
Learn how AI transforms project management in 5 days. Planning, scheduling, status reporting, risk management, and lea...
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ai research — Photo by Shubham Dhage on Unsplash
5 Days
Free
Business & Industry
AI-Powered Research
Free 5-day course on AI-powered research with Claude and Perplexity. Query patterns, research briefs, deep analysis, a...
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ai sales — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Business & Industry
AI for Sales Professionals
Learn how to use AI in your sales process. Prospecting, outreach, deal management, and forecasting — 5 days, no techni...
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ai small business — Photo by Mushvig Niftaliyev on Unsplash
5 Days
Free
Business & Industry
AI for Small Business Owners
Free 5-day course for small business owners. Use AI for customer service, marketing, operations, financial analysis, a...
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5 Days
Free
AI & Tools
Web Analytics
Free 5-day web analytics course. GA4 setup, event tracking, conversion measurement, dashboards, and reporting that dri...
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angular — Photo by Glen Carrie on Unsplash
5 Days
Free
Frontend & Mobile
Angular
Free 5-day Angular in 5 Days course. Build full-featured web applications with Angular's powerful component architectu...
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antigravity — Photo by Arnold Francisca on Unsplash
5 Days
Free
Hardware & Systems
Google Antigravity
Free 5-day Google Antigravity in 5 Days course. Google Antigravity is agent-first development — set up your project, d...
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api development — Photo by Marc PEZIN on Unsplash
5 Days
Free
Backend & Data
API Development for AI
Free 5-day course on building AI-powered APIs with FastAPI. Build REST endpoints, add AI capabilities, handle auth and...
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aws ai — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
AWS for AI
Learn AWS for AI in 5 days. AWS Bedrock, S3, Lambda, Knowledge Bases, and deploying AI apps. Free self-paced course fo...
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aws deploy — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Deploy to AWS
Learn to deploy on AWS from scratch in 5 days. Static sites, Python apps, RDS databases, custom domains, HTTPS.
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azure — Photo by Simon Ray on Unsplash
5 Days
Free
Cloud & DevOps
Azure
Free 5-day Azure in 5 Days course. Azure is the cloud platform of choice for enterprise and government. Learn the port...
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build pc — Photo by GAMERCOMP.RU on Unsplash
5 Days
Free
Hardware & Systems
Build a PC
Free 5-day PC building course. Components, compatibility, assembly, BIOS setup, and troubleshooting.
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calculus ai — Photo by nathan tang on Unsplash
5 Days
Free
Math & Theory
Calculus for AI
Free 5-day calculus for AI course. Derivatives, gradients, chain rule, optimization, and gradient descent.
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ccna — Photo by Jonathan on Unsplash
5 Days
Free
Security & Networking
CCNA Prep
Free 5-day CCNA prep course. Routing, switching, IP services, security, and automation for the Cisco CCNA exam.
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chatbot — Photo by Levart_Photographer on Unsplash
5 Days
Free
AI & Tools
Build an AI Chatbot with Node.js
Free 5-day course. Build a production AI chatbot with Node.js, Express, and the Anthropic Claude API. Streaming, RAG,...
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chatgpt — Photo by Sanket Mishra on Unsplash
5 Days
Free
AI & Tools
ChatGPT Course
Free 5-day ChatGPT course. Go from basic chat to Custom GPTs, data analysis, AI stacks, and workflows that save 5+ hou...
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cicd — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
CI/CD
Free 5-day CI/CD in 5 Days course. Continuous Integration and Continuous Deployment automate testing and shipping. Lea...
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circuits — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Circuit Basics
Free 5-day electronics course. Voltage, current, resistors, capacitors, and hands-on breadboard projects.
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cisco — Photo by Kaptured by Kasia on Unsplash
5 Days
Free
Security & Networking
Cisco Networking
Free 5-day Cisco networking course. IOS CLI, routing protocols, ACLs, NAT, and CCNA exam prep.
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claude code — Photo by Árpád Czapp on Unsplash
5 Days
Free
AI & Tools
Claude Code Course
Free 5-day Claude Code course. Learn to use Anthropic's CLI coding agent for multi-file projects, debugging, testing,...
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claude desktop — Photo by Growtika on Unsplash
5 Days
Free
AI & Tools
Claude Desktop Course
Free 5-day Claude Desktop course. Learn MCP, projects, file access, and advanced workflows. Go from beginner to Claude...
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claude — Photo by Steve A Johnson on Unsplash
5 Days
Free
AI & Tools
How to Use Claude AI
Free 5-day course: learn how to use Claude AI for real work. Documents, writing, projects, and advanced workflows. Pra...
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clean code — Photo by David Trinks on Unsplash
5 Days
Free
Engineering & Career
Clean Code
Free 5-day clean code course. Naming, functions, SOLID principles, refactoring techniques, and running effective code...
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comptia a plus — Photo by Davide Santillo on Unsplash
5 Days
Free
Security & Networking
CompTIA A+
Free 5-day CompTIA A+ prep course. Hardware, networking, mobile, troubleshooting, and exam strategies.
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computer architecture — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Computer Architecture
Free 5-day computer architecture course. CPU design, memory hierarchy, cache, pipelines, and GPU architecture explaine...
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csharp — Photo by Dawit on Unsplash
5 Days
Free
Programming
C#
Free 5-day C# course. .NET fundamentals, ASP.NET Core APIs, Entity Framework, Blazor UI, and deploying to the cloud.
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cto skills — Photo by Tim Schmidbauer on Unsplash
5 Days
Free
Business & Industry
CTO Skills
Free 5-day CTO skills course. Architecture decisions, team building, tech strategy, vendor management, and board commu...
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cursor — Photo by Shubham Dhage on Unsplash
5 Days
Free
AI & Tools
Cursor IDE Mastery
Master the Cursor IDE in 5 days. Tab completion, Composer, .cursorrules, and Claude Code integration. Free self-paced...
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cybersecurity ai — Photo by Mohammad Rahmani on Unsplash
5 Days
Free
Security & Networking
Cybersecurity + AI
Learn how AI is transforming cybersecurity. Threat detection, LLM-powered log analysis, AI vulnerability scanning, and...
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data analysis — Photo by Growtika on Unsplash
5 Days
Free
AI & Tools
Data Analysis with AI
Learn data analysis with AI in 5 days. Go from spreadsheets to Python, pandas, and AI-powered insights. Free self-pace...
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data engineering — Photo by Steve A Johnson on Unsplash
5 Days
Free
Backend & Data
Data Engineering
Free 5-day Data Engineering in 5 Days course. Data engineers build the pipelines that make data useful. Learn ETL, dat...
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data modeling — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Backend & Data
Data Modeling
Free 5-day data modeling course. ER diagrams, normalization, dimensional modeling, NoSQL patterns, schema evolution.
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data viz — Photo by Enchanted Tools on Unsplash
5 Days
Free
AI & Tools
Data Visualization with Python
Learn data visualization with Python in 5 days. Matplotlib, Seaborn, Plotly, design principles, and a complete visual...
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database internals — Photo by Jaffer Nizami on Unsplash
5 Days
Free
Backend & Data
Database Internals
Free 5-day database internals course. B-trees, WAL, MVCC, query planning, and storage engines.
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design patterns — Photo by Van Tay Media on Unsplash
5 Days
Free
Engineering & Career
Design Patterns
Free 5-day Design Patterns in 5 Days course. Design patterns are proven solutions to recurring software problems. Lear...
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discrete math — Photo by Egor Gordeev on Unsplash
5 Days
Free
Math & Theory
Discrete Math
Free 5-day discrete mathematics course. Logic, sets, graph theory, combinatorics, and mathematical proofs.
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distributed systems — Photo by Clay Banks on Unsplash
5 Days
Free
Math & Theory
Distributed Systems
Free 5-day distributed systems course. CAP theorem, consensus, replication, sharding, and eventual consistency.
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django — Photo by 1981 Digital on Unsplash
5 Days
Free
Backend & Data
Django
Free 5-day Django in 5 Days course. Django is the fastest way to build a production-ready web application in Python. B...
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docker ai — Photo by Hazel Z on Unsplash
5 Days
Free
Cloud & DevOps
Docker for AI Applications
Free 5-day course on Docker for AI apps. Build, containerize, compose, and deploy Python AI applications to AWS with D...
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dsa — Photo by Cytonn Photography on Unsplash
5 Days
Free
Engineering & Career
Data Structures & Algorithms
Free 5-day data structures and algorithms course. Arrays, trees, graphs, sorting, and dynamic programming with clear e...
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email marketing — Photo by Allen Boguslavsky on Unsplash
5 Days
Free
Business & Industry
Email Marketing
Free 5-day email marketing course. List building, automation sequences, design, A/B testing, and analytics using Mailc...
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excel to ai — Photo by Sumaid pal Singh Bakshi on Unsplash
5 Days
Free
AI & Tools
Excel to AI Data Skills Upgrade
Go from Excel power user to Python + AI in 5 days. Learn pandas, automate reports, and let AI analyze your spreadsheet...
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express — Photo by Mahdi Bafande on Unsplash
5 Days
Free
Backend & Data
Express.js
Free 5-day Express.js in 5 Days course. Express is the most popular Node.js framework. Build REST APIs, connect to Mon...
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federal ai — Photo by Caroline Badran on Unsplash
5 Days
Free
Business & Industry
AI for Federal Employees
Free 5-day course for federal employees. Understand AI, comply with OMB M-25-21, write use cases, and build your agenc...
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firebase — Photo by Markus Spiske on Unsplash
5 Days
Free
Backend & Data
Firebase
Free 5-day Firebase in 5 Days course. Firebase is Google's app development platform. Get authentication, a NoSQL datab...
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flask — Photo by Lukas on Unsplash
5 Days
Free
Backend & Data
Flask
Free 5-day Flask in 5 Days course. Flask is a lightweight Python web framework that gives you just what you need — no...
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flutter — Photo by AltumCode on Unsplash
5 Days
Free
Frontend & Mobile
Flutter
Free 5-day Flutter in 5 Days course. Flutter uses Dart and renders its own UI — pixel-perfect on iOS, Android, web, an...
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fullstack ai — Photo by Growtika on Unsplash
5 Days
Free
AI & Tools
Build a Full-Stack AI App
Learn to build a complete full-stack AI app in 5 days. Frontend, API, database, Claude AI integration, and production...
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gcp — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Google Cloud
Free 5-day Google Cloud in 5 Days course. Google Cloud powers YouTube, Gmail, and thousands of enterprise systems. Lea...
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git ai — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Engineering & Career
Git and GitHub for AI Projects
Free 5-day Git and GitHub course. Learn commits, branches, pull requests, GitHub Actions, and managing AI projects wit...
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go — Photo by Egor Komarov on Unsplash
5 Days
Free
Backend & Data
Go
Free 5-day Go course. Goroutines, channels, HTTP servers, CLI tools, and deploying Go applications to production.
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graphql — Photo by Ile Ristov on Unsplash
5 Days
Free
Backend & Data
GraphQL
Free 5-day GraphQL in 5 Days course. GraphQL replaces REST for complex APIs. Clients ask for exactly what they need —...
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how cpus work — Photo by Mohamed Nohassi on Unsplash
5 Days
Free
Hardware & Systems
How CPUs Work
Free 5-day course on CPU internals. Transistors, logic gates, ALU, instruction execution, and modern CPU design.
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java — Photo by Mamur Saitbaev on Unsplash
5 Days
Free
Programming
Java
Free 5-day Java course. OOP, collections, Spring Boot REST APIs, JDBC database access, and deploying Java applications...
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js ai — Photo by Rahul Mishra on Unsplash
5 Days
Free
Programming
JavaScript AI Development
Free 5-day course on building AI apps with JavaScript and the Anthropic Claude API. Streaming, Express servers, file p...
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kotlin — Photo by Tony Pepe on Unsplash
5 Days
Free
Programming
Kotlin
Free 5-day Kotlin course. Kotlin syntax, Android basics, Jetpack Compose UI, Room database, and publishing to the Play...
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kubernetes — Photo by Growtika on Unsplash
5 Days
Free
Cloud & DevOps
Kubernetes
Free 5-day Kubernetes in 5 Days course. Kubernetes is the industry standard for container orchestration. Learn pods, s...
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langchain — Photo by Growtika on Unsplash
5 Days
Free
AI & Tools
LangChain
Learn LangChain in 5 days. Build chains, memory, RAG pipelines, agents, and LangGraph workflows. Free self-paced cours...
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linear algebra — Photo by Lewis Keegan on Unsplash
5 Days
Free
Math & Theory
Linear Algebra for ML
Free 5-day linear algebra for machine learning course. Vectors, matrices, eigenvalues, PCA, and AI applications.
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linux admin — Photo by Kevin Ache on Unsplash
5 Days
Free
Cloud & DevOps
Linux Administration
Free 5-day Linux administration course. Users, services, storage, networking, and shell automation.
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linux — Photo by Gabriel Vasiliu on Unsplash
5 Days
Free
Cloud & DevOps
Linux
Free 5-day Linux in 5 Days course. Every server runs Linux. Learn the terminal, file system, permissions, process mana...
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machine learning — Photo by Steve A Johnson on Unsplash
5 Days
Free
AI & Tools
Machine Learning Fundamentals
Learn machine learning from scratch in 5 days. Supervised learning, scikit-learn, decision trees, model evaluation, an...
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microservices — Photo by Domaintechnik Ledl.net on Unsplash
5 Days
Free
Backend & Data
Microservices
Free 5-day microservices course. Learn architecture patterns, API gateways, service communication, and production depl...
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mongodb — Photo by Shubham Dhage on Unsplash
5 Days
Free
Backend & Data
MongoDB
Free 5-day MongoDB in 5 Days course. MongoDB stores data as flexible JSON documents — perfect for modern apps. Learn C...
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multi agent — Photo by Nick Design on Unsplash
5 Days
Free
AI & Tools
Multi-Agent AI Systems
Free 5-day course on building multi-agent AI systems with Claude. Orchestrators, debate loops, parallel pipelines, and...
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network admin — Photo by ic Ci on Unsplash
5 Days
Free
Security & Networking
Network Administration
Free 5-day network administration course. Switches, routers, VLANs, DHCP, DNS, and monitoring.
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networking — Photo by Albert Stoynov on Unsplash
5 Days
Free
Security & Networking
Networking for Developers
Free 5-day Networking for Developers course. DNS, HTTP, TCP/IP, load balancers, CDNs — you use these every day. Unders...
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nextjs — Photo by Favour Usifo on Unsplash
5 Days
Free
Frontend & Mobile
Next.js Full-Stack
Learn Next.js from scratch in 5 days. Pages, routing, server components, API routes, Prisma, Auth, and Vercel deploy....
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open source — Photo by Peter Masełkowski on Unsplash
5 Days
Free
Engineering & Career
Open Source
Free 5-day open source course. Finding issues, making pull requests, understanding licenses, maintaining a repo, and b...
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os fundamentals — Photo by Rakib Bin Aziz on Unsplash
5 Days
Free
Hardware & Systems
How Operating Systems Work
Free 5-day operating systems course. Processes, memory, file systems, scheduling, and virtual memory.
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pcb design — Photo by Brian Wangenheim on Unsplash
5 Days
Free
Hardware & Systems
PCB Design
Free 5-day PCB design course. Schematics, layout, component selection, KiCad, and manufacturing.
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php — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
PHP
Free 5-day PHP course. PHP syntax, Laravel framework, Eloquent ORM, authentication, and deploying to production.
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postgresql — Photo by Rahul Mishra on Unsplash
5 Days
Free
Backend & Data
PostgreSQL for Developers
Learn PostgreSQL from scratch in 5 days. SELECT to window functions, pgvector for AI, and production deployment.
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product management — Photo by Haim Charbit on Unsplash
5 Days
Free
Business & Industry
Product Management
Free 5-day product management course. Discovery, roadmaps, metrics, stakeholder management, and shipping products that...
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prompt engineering — Photo by Douglas Lopes on Unsplash
5 Days
Free
AI & Tools
Prompt Engineering Course
Learn prompt engineering in 5 days. Master chain-of-thought, few-shot prompting, system prompts, structured output, an...
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python ai — Photo by Rob Wingate on Unsplash
5 Days
Free
Programming
Python for AI
Learn Python for AI in 5 days. Build real data pipelines, call AI APIs, and analyze data with pandas. Free self-paced...
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raspberry pi — Photo by Jainath Ponnala on Unsplash
5 Days
Free
Hardware & Systems
Raspberry Pi
Free 5-day Raspberry Pi course. Setup, GPIO, Python projects, sensors, and IoT integration.
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react ai — Photo by Árpád Czapp on Unsplash
5 Days
Free
Frontend & Mobile
React + AI
Free 5-day course on building AI-powered web apps with React. Call AI APIs, build streaming chat interfaces, add RAG,...
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react native — Photo by Arnold Francisca on Unsplash
5 Days
Free
Frontend & Mobile
React Native
Free 5-day React Native in 5 Days course. Write one codebase and ship iOS and Android apps. React Native uses real nat...
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redis — Photo by Enric Moreu on Unsplash
5 Days
Free
Backend & Data
Redis
Free 5-day Redis in 5 Days course. Redis is an in-memory data store used for caching, sessions, pub/sub messaging, and...
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rust — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Rust
Free 5-day Rust course. Ownership, borrowing, structs, traits, and async Rust — practical systems programming from fir...
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saas ai — Photo by Sweet Life on Unsplash
5 Days
Free
Backend & Data
Build a SaaS with AI
Free 5-day course on building an AI-powered SaaS. MVP architecture, AI core features, Stripe payments, auth, and launc...
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security plus — Photo by Rostislav Uzunov on Unsplash
5 Days
Free
Security & Networking
Security+
Free 5-day CompTIA Security+ prep course. Threats, architecture, implementation, operations, and exam strategies.
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sensors — Photo by Robin Glauser on Unsplash
5 Days
Free
Hardware & Systems
Sensors and Actuators
Free 5-day sensors and actuators course. Temperature, motion, light sensors, motors, and microcontroller integration.
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seo — Photo by 1981 Digital on Unsplash
5 Days
Free
Engineering & Career
SEO
Free 5-day SEO course. Keyword research, on-page SEO, technical SEO, content strategy, and link building that works in...
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shopify — Photo by Zest Tea on Unsplash
5 Days
Free
Engineering & Career
Shopify Development
Free 5-day Shopify development course. Themes, Liquid templating, Shopify apps, checkout customization, and store laun...
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sql ai — Photo by Peaky Frames on Unsplash
5 Days
Free
Backend & Data
SQL for AI and Data
Learn SQL in 5 days. Go from your first SELECT to window functions, CTEs, and building a full data pipeline with Pytho...
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statistics — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Math & Theory
Statistics for Data Science
Learn statistics for data science in 5 days. Descriptive stats, probability, hypothesis testing, regression, and stati...
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stripe — Photo by Logan Voss on Unsplash
5 Days
Free
Backend & Data
Stripe Integration
Free 5-day Stripe course. Checkout, subscriptions, webhooks, invoices, and Stripe Connect for marketplace payments.
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supabase — Photo by Shubham Dhage on Unsplash
5 Days
Free
Backend & Data
Supabase
Free 5-day Supabase in 5 Days course. Supabase is the open-source Firebase alternative. Get a full backend — auth, Pos...
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svelte — Photo by Chris Ried on Unsplash
5 Days
Free
Frontend & Mobile
Svelte
Free 5-day Svelte in 5 Days course. Svelte compiles away the framework at build time — no virtual DOM, smaller bundles...
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swift — Photo by Pankaj Patel on Unsplash
5 Days
Free
Programming
Swift
Free 5-day Swift course. Swift syntax, SwiftUI views, networking, CoreData persistence, and App Store submission.
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system design — Photo by Caroline Badran on Unsplash
5 Days
Free
Engineering & Career
System Design
Free 5-day system design course. Learn scalability, caching, databases, load balancing, and how to design real systems...
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tailwind — Photo by Ferenc Almasi on Unsplash
5 Days
Free
Frontend & Mobile
Tailwind CSS
Free 5-day Tailwind CSS in 5 Days course. Stop writing custom CSS. Tailwind's utility classes let you build beautiful,...
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tcp ip — Photo by Lightsaber Collection on Unsplash
5 Days
Free
Security & Networking
TCP/IP Deep Dive
Free 5-day TCP/IP course. OSI model, IP addressing, routing, TCP vs UDP, and hands-on Wireshark packet analysis.
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tech interview — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Engineering & Career
Tech Interview Prep with AI
Free 5-day course on using AI to prepare for technical interviews. DSA practice, system design, behavioral stories, an...
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technical writing — Photo by Ambre Estève on Unsplash
5 Days
Free
Engineering & Career
Technical Writing
Free 5-day technical writing course. API docs, READMEs, tutorials, style guides, and docs-as-code workflows for develo...
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terraform — Photo by wilson montoya on Unsplash
5 Days
Free
Cloud & DevOps
Terraform
Free 5-day Terraform in 5 Days course. Terraform lets you define your entire cloud infrastructure as code. Version-con...
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testing — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Engineering & Career
Software Testing
Free 5-day Software Testing in 5 Days course. Untested code is broken code you haven't found yet. Learn unit tests, in...
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twilio — Photo by Radission US on Unsplash
5 Days
Free
Engineering & Career
Twilio
Free 5-day Twilio course. SMS, voice calls, WhatsApp messaging, phone number verification, and video with Twilio.
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ux design — Photo by Vitaly Gariev on Unsplash
5 Days
Free
Engineering & Career
UX Design
Free 5-day UX design course. User research, wireframes, Figma prototyping, usability testing, and developer handoff.
Start Course Free
vibe coding — Photo by Merrilee Schultz on Unsplash
5 Days
Free
AI & Tools
Vibe Coding Course: Build Real Apps with AI
Free 5-day vibe coding course. Learn to build real web apps with AI using Cursor, Claude Code, and Replit — no coding...
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vue — Photo by Mohammad Rahmani on Unsplash
5 Days
Free
Frontend & Mobile
Vue.js
Free 5-day Vue.js course. Learn components, reactivity, Pinia state management, Vue Router, and deployment. Practical,...
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web security — Photo by XT7 Core on Unsplash
5 Days
Free
Security & Networking
Web Security for AI Apps
Free 5-day course on web security for AI applications. JWT, OAuth 2.0, CSRF, XSS, rate limiting, and production securi...
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web3 — Photo by Cytonn Photography on Unsplash
5 Days
Free
Engineering & Career
Web3 Basics
Free 5-day Web3 course. Blockchain fundamentals, smart contracts in Solidity, wallets, DApps, and an honest look at We...
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websockets — Photo by Chris Stein on Unsplash
5 Days
Free
Engineering & Career
WebSockets
Free 5-day course on WebSockets and Socket.io. Build real-time chat, notifications, and scalable WebSocket servers fro...
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windows server — Photo by User_Pascal on Unsplash
5 Days
Free
Security & Networking
Windows Server
Free 5-day Windows Server course. Active Directory, Group Policy, IIS, PowerShell automation, and Hyper-V.
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wireless — Photo by Kevin Grieve on Unsplash
5 Days
Free
Security & Networking
Wireless Networking
Free 5-day wireless networking course. WiFi, Bluetooth, cellular, mesh networking, and wireless security.
Start Course Free
wordpress — Photo by Ninthgrid on Unsplash
5 Days
Free
Engineering & Career
WordPress
Free 5-day WordPress course. Setup, themes, plugins, WooCommerce e-commerce, and SEO for beginners and developers.
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arduino — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Arduino
Free 5-day Arduino course. Microcontrollers, sensors, actuators, breadboard wiring, and your first embedded projects.
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assembly — Photo by Moises Gonzalez on Unsplash
5 Days
Free
Programming
Assembly Language
Free 5-day assembly language course. x86-64 registers, memory, arithmetic, system calls, and calling conventions.
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c — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
C Programming
Free 5-day C programming course. Pointers, memory management, structs, file I/O, and building command-line tools.
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cryptography — Photo by Mika Baumeister on Unsplash
5 Days
Free
Security & Networking
Cryptography
Free 5-day cryptography course. Symmetric and asymmetric encryption, hashing, TLS, PKI, and applied crypto in code.
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edge computing — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Edge Computing
Free 5-day edge computing course. Edge vs cloud, latency-sensitive deployments, MQTT, and running AI models at the edge.
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elixir — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Elixir
Free 5-day Elixir course. Functional programming, pattern matching, OTP, GenServers, and building fault-tolerant systems.
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ethical hacking — Photo by Ile Ristov on Unsplash
5 Days
Free
Security & Networking
Ethical Hacking
Free 5-day ethical hacking course. Reconnaissance, scanning, exploitation, post-exploitation, and reporting on lab targets.
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firmware — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
Firmware Development
Free 5-day firmware development course. Bare-metal C, interrupt handling, UART, SPI, I2C, and deploying to real hardware.
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haskell — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Haskell
Free 5-day Haskell course. Pure functions, types, monads, functors, and building reliable programs through type safety.
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iot — Photo by Robin Glauser on Unsplash
5 Days
Free
Hardware & Systems
IoT
Free 5-day IoT course. Device provisioning, MQTT, cloud connectivity, sensor pipelines, and a full end-to-end IoT project.
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network security — Photo by FlyD on Unsplash
5 Days
Free
Security & Networking
Network Security
Free 5-day network security course. Firewalls, VPNs, IDS/IPS, packet analysis with Wireshark, and hardening techniques.
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pentesting — Photo by Growtika on Unsplash
5 Days
Free
Security & Networking
Penetration Testing
Free 5-day penetration testing course. Scoping, Kali Linux, Metasploit, web app attacks, and writing professional pentest reports.
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r programming — Photo by Emile Perron on Unsplash
5 Days
Free
Programming
R Programming
Free 5-day R programming course. Tidyverse, ggplot2, statistical modeling, and building reproducible data analysis reports.
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rtos — Photo by Vishnu Mohanan on Unsplash
5 Days
Free
Hardware & Systems
RTOS
Free 5-day RTOS course. Real-time operating systems, FreeRTOS tasks, queues, semaphores, and deterministic scheduling.
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scala — Photo by Bernd 📷 Dittrich on Unsplash
5 Days
Free
Programming
Scala
Free 5-day Scala course. Functional + object-oriented programming, Akka, Spark basics, and building type-safe applications.
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soc — Photo by Norbu GYACHUNG on Unsplash
5 Days
Free
Security & Networking
SOC Operations
Free 5-day SOC course. Triage, SIEM, threat hunting, incident response playbooks, and Level 1 analyst workflows.
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Want more than a free course?

The in-person bootcamp is 2 days, in-person, with direct instruction from Bo. You build real projects. You leave with a portfolio. June–October 2026 (Thu–Fri). $1,490 per person, employer-reimbursable.

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