JavaScript Beautifier
JavaScript Beautifier is a free online JavaScript Tools tool that re-indent compact JavaScript for readability instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
Description
Re-indent compact JavaScript for readability.
- Because everything is computed client-side, JavaScript Beautifier is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using JavaScript Beautifier takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Examples
These ready-made examples show typical inputs and the exact output JavaScript Beautifier produces for them.
function f(a){if(a){return a*2}return 0}Re-indented JS.
Use cases
Common situations where JavaScript Beautifier helps:
- Re-indent compact JavaScript for readability.
- Because everything is computed client-side, JavaScript Beautifier is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is JavaScript Beautifier?
JavaScript Beautifier re-indent compact JavaScript for readability. It runs entirely in your browser, so your data stays private.
Is JavaScript Beautifier free to use?
Yes. JavaScript Beautifier is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.