Documentation · ESSENTIAL
MDN Web Docs
A dependable reference for HTML, CSS, JavaScript and the browser APIs that bring them together.
developer.mozilla.org THE WEB, WELL BOOKMARKED
Fill your creative toolkit.
98 references, libraries and tools for designing, building and testing the web.
18 resources · External links open in a new tab. Some services require an account or paid plan.
Documentation · ESSENTIAL
MDN JavaScript reference
Learn JavaScript syntax and explore built-in objects, operators, functions and language behavior.
developer.mozilla.orgLibraries
CodeMirror
An extensible code editor for the browser, with language support and accessible editing controls.
codemirror.netBuild tools
Vite
A frontend build tool for a focused development loop and production asset compilation.
vite.devDocumentation
ECMAScript specification
The normative JavaScript language specification, useful when you need exact language semantics.
tc39.esLearning
The Modern JavaScript Tutorial
A structured path through JavaScript fundamentals, browser interaction and asynchronous programming.
javascript.infoLearning
Frontend Mentor
Practice translating interface designs into working frontend projects with guided challenges.
www.frontendmentor.ioLearning
Smashing Magazine
Articles and practical guidance on frontend development, user experience and web design.
www.smashingmagazine.comAnimation
Motion
Animation tooling and documentation for JavaScript and React interfaces.
motion.devAnimation
GSAP
Tools and documentation for building coordinated animation sequences and scroll interactions.
gsap.comAnimation
Anime.js
A JavaScript animation engine with documentation for animating interfaces and SVG artwork.
animejs.comJavaScript tools
30 seconds of code
Short JavaScript explanations and examples for exploring language and utility patterns.
www.30secondsofcode.orgJavaScript tools
You Might Not Need jQuery
Compare common jQuery operations with browser-native JavaScript equivalents.
youmightnotneedjquery.comJavaScript tools
JavaScript Visualizer 9000
Visualize JavaScript execution, the call stack and asynchronous task queues.
www.jsv9000.appJavaScript tools
Regex101
Test regular expressions with explanations and choose a flavor that matches your runtime.
regex101.comJavaScript tools
RegExr
Explore regular expressions with interactive matching, examples and reference information.
regexr.comJavaScript tools
Transform
Convert between common code and data formats with focused browser-based utilities.
transform.toolsJavaScript tools
Bundlephobia
Inspect the estimated bundle impact of npm packages before adding a dependency.
bundlephobia.com