💻 JavaScript Beautifier
Beautify and format minified JavaScript into readable code. It runs entirely in your browser — no signup, no installation, and nothing you paste or drop leaves your device.
JavaScript Beautifier — Free Online Tool
Free online JavaScript beautifier tool. Paste your minified, compressed, or uglified JavaScript code into the text area, click "Run", and instantly get clean, properly indented, human-readable code. It adds line breaks after semicolons, indents curly braces, and formats nested functions — making production code or third-party library snippets easy to read and debug. All processing happens client-side in your browser — nothing is sent to any server.
JavaScript Beautifier — Kostenloses Online-Tool
Kostenloser Online-JavaScript-Beautifier. Füge deinen minifizierten, komprimierten oder uglified JavaScript-Code ins Textfeld ein, klicke auf "Run" und erhalte sofort sauberen, korrekt eingerückten, lesbaren Code. Das Tool setzt Zeilenumbrüche nach Semikolons, rückt geschweifte Klammern ein und formatiert verschachtelte Funktionen — perfekt zum Debuggen von Produktions-Code oder zum Verstehen von Drittanbieter-Snippets. Die gesamte Verarbeitung läuft clientseitig im Browser — nichts wird an einen Server gesendet.
What is JavaScript Beautifier?
JavaScript Beautifier is a free online developer tool built for developers debugging payloads, configs and code. Beautify and format minified JavaScript into readable code In practice you paste minified JavaScript, run the beautifier, and then copy the readable, indented code.
Your code, tokens and payloads never leave the browser, which matters when you are debugging something under NDA or handling production data.
How to use JavaScript Beautifier
- Paste minified JavaScript.
- Run the beautifier.
- Copy the readable, indented code.
JavaScript Beautifier FAQ
Is JavaScript Beautifier free to use?
Yes. JavaScript Beautifier is completely free and needs no account, no trial and no payment details. Every feature on the page is available without limits.
Is my data uploaded anywhere?
No. JavaScript Beautifier runs entirely in your browser, so the text, file or number you enter never leaves your device.
Does JavaScript Beautifier work on a phone or tablet?
Yes. It works in any modern browser on desktop, tablet and phone. There is no app to install and no account to create.
How do I use JavaScript Beautifier?
Paste minified JavaScript. Run the beautifier. Copy the readable, indented code.