JS Formatter & Compressor
Online JavaScript Code Beautifier, Formatter and Minifier
About JS Formatter
What is this tool?
This is a powerful online JavaScript code processor that provides beautification (formatting) and minification capabilities. Whether you want to restore minified code to a readable format or compress source code to reduce file size, this tool has you covered.
Key Features
- Code Beautify: Reformat messy or minified JS code with proper indentation.
- Code Minify: Remove all unnecessary whitespace, newlines, and comments to reduce file size.
- Terser Engine: Uses the industry-leading Terser library for compression, supporting ES6+ syntax.
- Custom Indention: Supports 2 spaces, 4 spaces, or Tab indentation.
- Privacy: All processing is done locally in your browser; code is never uploaded to servers.
Minify Steps
- 1Select 'Minify' mode.
- 2Check 'Preserve Comments' if you need to keep copyright headers.
- 3Click 'Process'.
Beautify Steps
- 1Select 'Beautify' mode.
- 2Choose your preferred indent size (2 or 4 spaces recommended).
- 3Click 'Process'.
FAQ
Difference between Minify and Beautify?
Minify removes unnecessary characters (whitespace, comments) for size. Beautify adds whitespace for readability.
Does this tool obfuscate code?
Our Minify function mainly focuses on removing whitespace/comments. We disable 'Mangle' (shortening variables) by default to ensure code remains slightly readable and safer. Use dedicated obfuscators for deep obfuscation.
Is my code safe?
Absolutely. This tool is a pure client-side app; your code never leaves your browser.
Is ES6+ supported?
Yes, our Terser engine fully supports ES6 and newer JavaScript syntax.