20 Resources Every JavaScript Developer Should Bookmark

JavaScript evolves fast. New frameworks, tooling updates, performance improvements, and best practices appear almost every month. Whether you're into frontend, backend, or full-stack development, having reliable resources saved can save you hours of frustration and research.

Here are 20 essential resources every JavaScript developer should bookmark to stay productive, write cleaner code, and level up faster.

Documentation & Core References

• MDN Web Docs
  The gold standard for JavaScript, HTML, and CSS documentation. Clear explanations and real examples.

• JavaScript.info
  Deep yet beginner-friendly explanations of JavaScript concepts from basics to advanced topics.

• ECMAScript Specification (TC39)
  For understanding how JavaScript actually works under the hood.

• Node.js Official Docs
  Essential for backend developers working with Node.

Tools & Utilities

• Can I Use
  Check browser support for JavaScript and CSS features.

• JSON Formatter & Validator
  Quickly format and validate JSON responses.

• RegEx101
  Test and debug regular expressions in real time.

• Bundlephobia
  Check package size before installing dependencies.

Frontend Framework Resources

• React Docs
  Official documentation with modern examples and hooks.

• Next.js Documentation
  For server-side rendering and full-stack React apps.

• Vue.js Guide
  Clean, structured documentation for Vue developers.

• Svelte Docs
  Lightweight framework documentation with interactive examples.

Package & Library Discovery

• npm Trends
  Compare package popularity and download stats.

• GitHub Trending
  Discover popular JavaScript repositories.

• Awesome JavaScript (GitHub List)
  Curated list of high-quality JS libraries and tools.

Testing & Debugging

• Jest Documentation
  Go-to testing framework for JavaScript apps.

• Cypress Docs
  End-to-end testing for modern web apps.

• Chrome DevTools Guide
  Master debugging and performance analysis.

Learning & Staying Updated

• Dev.to (JavaScript Tag)
  Real developer experiences, tutorials, and discussions.

• Stack Overflow
  Still one of the fastest ways to find solutions to real-world coding problems.

Why Bookmarking Matters

As JavaScript developers, we often lose time searching for reliable information. Having trusted references ready helps you:

• Write cleaner and more maintainable code
• Debug faster
• Choose better libraries
• Stay updated with modern development practices

JavaScript isn’t just a language anymore — it’s an ecosystem. And navigating that ecosystem becomes much easier when you have the right resources saved.