Developer Tools
Free, browser-based tools for software engineers. Every tool runs entirely client-side — your data never leaves your browser.
Free
JSON Formatter & Beautifier
Beautify, minify, validate, and convert JSON. Supports diff, tree view, TypeScript interfaces, CSV, YAML, JSON Schema, and JSONPath queries.
Open tool Free
Invisible Text Remover
Detect and remove hidden Unicode characters like zero-width spaces, em dashes, and smart quotes from AI-generated or copied text.
Open tool Live
Is LeetCode Down? — Live Status
Check whether LeetCode is down right now. Pings the homepage and problem set directly from your browser for a real answer, not a cached report.
Open tool Soon
Regex Tester
Test regular expressions with real-time match highlighting, capture groups, and flag controls.
Soon
Base64 Encoder / Decoder
Encode and decode Base64 strings and files. Supports URL-safe Base64 and binary file encoding.