What does this tool do?
| Direct answer | JavaScript Beautifier reformats code with one statement per line and consistent brace indentation. |
| Key fact | String literals and comments are tokenized first, so braces inside them never affect indentation. |
| Processing | Runs locally in your browser; no data is sent to a server. |
How to use
- Paste JavaScript into the input.
- Click Beautify JavaScript.
- Copy the formatted code.
Who is this for?
This tool was built for people who need a fast answer in the browser — no install, no account, no data leaving the device.
Developers formatting API responses or config files, analysts inspecting minified payloads, and students learning structured data formats. If you have ever squinted at a one-line blob hoping to find a missing brace, this page is for you.
Frequently asked questions
Is the output valid JavaScript?
Yes — formatting is whitespace-only; the token stream is unchanged.
Does it handle template literals?
Yes, template literals are treated as strings so $ + undefined and embedded braces are preserved.
Does it support ASI edge cases?
The beautifier preserves your semicolons as written; it does not add or remove them.