Free Developer Tools
9 browser-based tools — no servers, no accounts, no tracking. Everything runs locally in your browser for instant, private execution.
JSON Formatter & Validator
Format, prettify, minify, and validate JSON data. Spot syntax errors instantly.
Base64 Encoder / Decoder
Encode & decode text or binary payload strings to Base64 UTF-8 instantly.
Tailwind Color Generator
Generate full 50–900 Tailwind CSS color palettes from any hex base color.
Word & Reading Counter
Count words, characters, sentences, and calculate estimated reading time.
JWT Decoder & Inspector
Decode JSON Web Tokens — view header, payload, claims, and expiry status instantly.
Markdown Live Previewer
Write Markdown in a split-screen editor and see the rendered HTML preview in real time.
URL Encoder & Query Parser
Encode/decode URLs and parse query string parameters into an interactive key-value table.
CSS Shadow & Gradient Builder
Build box shadows and CSS gradients visually with live preview and 1-click code export.
Regex Tester & Evaluator
Test regular expressions with real-time match highlighting, flag toggles, and presets.
All tools are completely free
No login required. No data is sent to any server. Everything runs securely inside your browser using the Web Platform APIs.