JavaScript Formatter
Beautify JavaScript in your browser.
Uses js-beautify (MIT) locally. This is formatting, not a full parser/linter.
What is a JavaScript formatter?
It re-indents JavaScript source for readability.
How to format JavaScript
- 1
Paste JavaScript
Enter JS source to beautify.
- 2
Format
Indentation and wrapping improve readability. Invalid syntax may still partially format.
- 3
Copy
Copy the formatted code.
JavaScript Formatter FAQ
TypeScript / JSX?
Plain JavaScript is the primary target. TS/JSX may need a dedicated formatter.
Does it lint?
No — formatting only, not ESLint rules.
Uploaded?
No.
Related tools?
JSON Formatter; HTML Formatter.