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Curated highest-quality tutorial sources across major skill areas. These aren't random links – these are resources professionals use to learn and reference.
Web Development Fundamentals
freeCodeCamp – Comprehensive curriculum from HTML through data science. Entirely free, project-based. Certifications take 300 hours each but thorough. YouTube channel has full courses on every technology. Best for structured learning.
The Odin Project – Free full-stack curriculum focused on Ruby or JavaScript. Project-heavy approach. Strong community support. Takes 6-9 months. Better than bootcamps for learning fundamentals properly.
MDN Learn Web Development – Mozilla's comprehensive guides on HTML, CSS, JavaScript, accessibility. More thorough than quick-result tutorials. Reference quality. Best for understanding "why" behind techniques.
JavaScript & TypeScript
JavaScript.info – Modern JavaScript from basics through advanced. Clear explanations, interactive examples, exercises. Covers ES6+ properly. Free, no ads, high quality.
TypeScript Handbook – Official TypeScript docs as excellent tutorial. Comprehensive coverage of type system. Reference for specific questions.
React & Frontend
React Official Tutorial – New React docs are genuinely excellent. Interactive examples, clear explanations, covers hooks properly. Start here before outdated YouTube tutorials. Completely free, kept current.
Next.js Learn Course – Official tutorial building full application. Covers routing, data fetching, authentication, deployment. Takes ~10 hours. Best introduction to modern React development.
Svelte Tutorial – Interactive tutorial in browser. Covers entire framework progressively. Takes 2-3 hours. Excellent introduction to Svelte concepts.
Backend Development
Node.js Best Practices – Comprehensive guide to Node.js development. 80+ best practices with explanations. Updated regularly. Covers security, error handling, testing. Reference constantly.
FastAPI Tutorial – Official Python FastAPI docs walk through building APIs. Excellent for learning modern Python backend. Interactive docs built-in.
Database & SQL
SQLBolt – Interactive SQL lessons with exercises. Covers SELECT, JOIN, aggregates, subqueries. Takes ~3 hours. Best for learning SQL from scratch. Practice in browser.
PostgreSQL Tutorial – Comprehensive PostgreSQL tutorials from basics to advanced. Well-organized, clear examples. Reference for specific PostgreSQL features.
DevOps & Cloud
Docker Curriculum – Comprehensive Docker tutorial from basics to deployment. Hands-on, build real containers. Takes ~4 hours. Best introduction to Docker concepts.
Kubernetes Documentation Tutorial – Official Kubernetes tutorials. Interactive browser learning. Steep learning curve but high quality. Best after understanding Docker.
Design & UI/UX
Refactoring UI – Book and video on making designs professional. Practical tips without design degree. $99 for complete package. Covers typography, color, layout. Best investment for developers doing design.
Laws of UX – Collection of design principles with examples. Free, concise explanations of psychological principles affecting UX. Reference when making design decisions.
Git & Version Control
Learn Git Branching – Interactive visual Git tutorial. Practice branching, merging, rebasing in browser. Gamified learning. Takes ~2 hours. Best way to understand Git visually.
Pro Git Book – Comprehensive Git documentation. Free online. Covers everything from basics to internals. Use as reference, not cover-to-cover.
Data Science & ML
fast.ai – Practical deep learning course. Top-down approach – build working models first. Free, high quality. Assumes coding ability, not ML background. Takes ~100 hours.
Kaggle Learn – Micro-courses on Python, ML, data visualization. Hands-on coding in browser. Takes 3-8 hours per course. Free, practical focus.
Mobile Development
SwiftUI Tutorials – Official Apple tutorials for iOS. Build real apps. Excellent quality, kept current. Free, comprehensive.
Android Basics in Kotlin – Official Google course for Android. Modern Kotlin approach. Takes ~50 hours. Project-based learning.
Learning Strategies
Don't tutorial hell yourself. Watching 100 tutorials without building projects teaches nothing. Follow this pattern: watch/read tutorial → build the project → modify significantly → build something similar from scratch → teach someone else.
Skip outdated tutorials. Check publication dates. JavaScript/React/Next.js change rapidly – 2+ year old tutorials often teach deprecated patterns.
Official documentation often contains best tutorials. Don't default to YouTube – check official docs first.
Share tutorials you've completed successfully. Post original tutorials you create. Comment on what works and what's outdated. Build the library together.
Web Development Fundamentals
freeCodeCamp – Comprehensive curriculum from HTML through data science. Entirely free, project-based. Certifications take 300 hours each but thorough. YouTube channel has full courses on every technology. Best for structured learning.
The Odin Project – Free full-stack curriculum focused on Ruby or JavaScript. Project-heavy approach. Strong community support. Takes 6-9 months. Better than bootcamps for learning fundamentals properly.
MDN Learn Web Development – Mozilla's comprehensive guides on HTML, CSS, JavaScript, accessibility. More thorough than quick-result tutorials. Reference quality. Best for understanding "why" behind techniques.
JavaScript & TypeScript
JavaScript.info – Modern JavaScript from basics through advanced. Clear explanations, interactive examples, exercises. Covers ES6+ properly. Free, no ads, high quality.
TypeScript Handbook – Official TypeScript docs as excellent tutorial. Comprehensive coverage of type system. Reference for specific questions.
React & Frontend
React Official Tutorial – New React docs are genuinely excellent. Interactive examples, clear explanations, covers hooks properly. Start here before outdated YouTube tutorials. Completely free, kept current.
Next.js Learn Course – Official tutorial building full application. Covers routing, data fetching, authentication, deployment. Takes ~10 hours. Best introduction to modern React development.
Svelte Tutorial – Interactive tutorial in browser. Covers entire framework progressively. Takes 2-3 hours. Excellent introduction to Svelte concepts.
Backend Development
Node.js Best Practices – Comprehensive guide to Node.js development. 80+ best practices with explanations. Updated regularly. Covers security, error handling, testing. Reference constantly.
FastAPI Tutorial – Official Python FastAPI docs walk through building APIs. Excellent for learning modern Python backend. Interactive docs built-in.
Database & SQL
SQLBolt – Interactive SQL lessons with exercises. Covers SELECT, JOIN, aggregates, subqueries. Takes ~3 hours. Best for learning SQL from scratch. Practice in browser.
PostgreSQL Tutorial – Comprehensive PostgreSQL tutorials from basics to advanced. Well-organized, clear examples. Reference for specific PostgreSQL features.
DevOps & Cloud
Docker Curriculum – Comprehensive Docker tutorial from basics to deployment. Hands-on, build real containers. Takes ~4 hours. Best introduction to Docker concepts.
Kubernetes Documentation Tutorial – Official Kubernetes tutorials. Interactive browser learning. Steep learning curve but high quality. Best after understanding Docker.
Design & UI/UX
Refactoring UI – Book and video on making designs professional. Practical tips without design degree. $99 for complete package. Covers typography, color, layout. Best investment for developers doing design.
Laws of UX – Collection of design principles with examples. Free, concise explanations of psychological principles affecting UX. Reference when making design decisions.
Git & Version Control
Learn Git Branching – Interactive visual Git tutorial. Practice branching, merging, rebasing in browser. Gamified learning. Takes ~2 hours. Best way to understand Git visually.
Pro Git Book – Comprehensive Git documentation. Free online. Covers everything from basics to internals. Use as reference, not cover-to-cover.
Data Science & ML
fast.ai – Practical deep learning course. Top-down approach – build working models first. Free, high quality. Assumes coding ability, not ML background. Takes ~100 hours.
Kaggle Learn – Micro-courses on Python, ML, data visualization. Hands-on coding in browser. Takes 3-8 hours per course. Free, practical focus.
Mobile Development
SwiftUI Tutorials – Official Apple tutorials for iOS. Build real apps. Excellent quality, kept current. Free, comprehensive.
Android Basics in Kotlin – Official Google course for Android. Modern Kotlin approach. Takes ~50 hours. Project-based learning.
Learning Strategies
Don't tutorial hell yourself. Watching 100 tutorials without building projects teaches nothing. Follow this pattern: watch/read tutorial → build the project → modify significantly → build something similar from scratch → teach someone else.
Skip outdated tutorials. Check publication dates. JavaScript/React/Next.js change rapidly – 2+ year old tutorials often teach deprecated patterns.
Official documentation often contains best tutorials. Don't default to YouTube – check official docs first.
Share tutorials you've completed successfully. Post original tutorials you create. Comment on what works and what's outdated. Build the library together.