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Regex101
Developer ResourcesAn interactive regex tester with real-time highlighting, explanation, and a library of community patterns.
freeweb
BackendCheatsheetFree
A curated collection of beautiful, printable cheatsheets covering programming languages, tools, and frameworks.
DevHints is a gallery of cheatsheets that are actually pleasant to look at. Each sheet compresses a language or tool — Git, React, Docker, Bash, and more — into a dense, well-organized reference you can scan in seconds. The layout is clean and consistent, and every sheet is designed to be printed and pinned if you like. Because they're community-maintained, they stay current with the tools you actually use. When you need a command or a syntax you can't quite recall, DevHints gets you back to work faster than a doc search.
An interactive regex tester with real-time highlighting, explanation, and a library of community patterns.
Up-to-date browser support tables for HTML, CSS, and JavaScript features, essential for cross-browser work.
A community where you solve kata — ranked coding challenges — and learn from thousands of other solutions.
The official browser extension for inspecting React component trees, props, state, and performance.
Yespstis a curated directory of the internet's most useful digital resources, organized into districts and built for discovery.
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