2026-08-07

How to beautify JavaScript online for free

Pretty-print and format JavaScript online for free. Beautify minified JS privately in your browser with Jigglify.

Beautify JavaScript online for free when minified or one-line scripts are hard to read. Jigglify's free online JavaScript beautifier pretty-prints JS privately in your browser with tunable indent, brace style, and wrap options.

How to beautify JavaScript online

Open the free online JS Beautifier.
Paste minified or messy JavaScript (or click Sample).
Adjust indent, brace style, and wrap length if you want.
Click Beautify, or press Ctrl+Enter / Cmd+Enter.
Copy the readable output.

Why format JS locally?

Browser-local beautify keeps proprietary snippets on your device. Use it to review vendor bundles, debug paste errors, or prepare code for a PR - then minify again when size matters.

Pretty-print JavaScript online for free - private, nothing uploaded.
Beautify JavaScript online free →