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Reference
Function and method references with live in-browser demos: signatures, parameters, examples and pitfalls for every entry.
2Pages
2Categories
  • Python 1
  • General 1
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Python functions
Browse Python built-in functions and type methods: signatures, parameters, examples, pitfalls and live in-browser demos.
Python
Python reference with live in-browser demos: built-in functions, string, list, dict and set methods — signatures, examples, pitfalls.
Tools
Client-side developer utilities. Fast, keyboard-first, no signup. JSON, encoders, formatters, generators, and converters.
14Pages
1Categories
  • General 14
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Base64 Encoder / Decoder
Fast Base64 encoder and decoder. UTF-8 safe, runs entirely in your browser, no data sent to any server. Copy to clipboard, works offline.
CSS Minifier
Minify CSS in your browser with csso. AST-based optimization, not just regex — merges duplicate selectors, optimizes shorthand, preserves variables.
HTML Encoder / Decoder
Encode and decode HTML entities in your browser. Handles the five special characters plus optional non-ASCII (named, decimal, or hex).
HTML Minifier
Minify HTML in your browser. Strips whitespace, comments, and unnecessary quotes. Can minify inline CSS and JS too.
JavaScript Beautifier
Beautify minified JavaScript in your browser. Restore whitespace, indentation, and line breaks. Powered by js-beautify.
JavaScript Minifier
Minify JavaScript in your browser. Terser under the hood, with mangling, compression, drop-console, and comment options.