JS Tools

Javascript Tools

Free online Javascript tools to format, validate, convert and debug Javascript data in your browser. No sign‑up, fast and privacy‑friendly.

Babel Formatter
Format JS/JSX using Prettier (Babel).
JavaScript Validator
Validate JavaScript syntax in-browser.
Minify JavaScript
Minify and compress JavaScript (via Terser) in your browser; reduce size and improve load times.
Javascript Beautifier
Format JavaScript with consistent indentation and spacing; readable modern JS.