Format and minify JavaScript snippets.
Clean up small JavaScript snippets or compress them for quick local debugging.
Workspace
Format or minify JavaScript snippets locally.
This lightweight tool is intended for snippets. Verify production code with a parser-based formatter.
Output
Formatted or minified JavaScript will appear here.
About this JavaScript formatter
Use this JavaScript formatter and minifier for small snippets that need quick cleanup or compact output during debugging.
Common use cases
- Make compact snippets easier to read.
- Minify small examples before sharing or testing.
- Inspect simple code blocks copied from docs or console output.
How to use this tool
- Paste a small JavaScript snippet into the input editor.
- Choose Format or Minify depending on the debugging task.
- Verify complex code with a parser-based formatter before production use.
Example
Input
function hi(){return 'hello';}Output
function hi() {
return 'hello';
}Common errors
- This tool does not execute JavaScript, so runtime errors are outside its scope.
- String literals and complex syntax can be sensitive to lightweight text-based formatting.
- Use a parser-based formatter for production code or large files.
Privacy note
Dev Atlas keeps this tool local in your browser. Your input is not intentionally uploaded to a Dev Atlas server for processing.
FAQ
Is this a production JavaScript formatter?
No. It is a lightweight snippet tool. Use a parser-based formatter for production code.
Does it execute JavaScript?
No. It transforms text and does not run your code.
Is my code uploaded?
No. The transformation happens in the browser.