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JavaScript formatter
Reindent JavaScript for easier review, or minify it to reduce code size before reusing it in your project.
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- Instant
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- Works offline
- Clipboard
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Result
Why use this tool?
Format compact or hard-to-read JavaScript into consistent indentation and line breaks, or minify it to reduce its size. Processing runs directly in your browser, making it useful for quickly reviewing a snippet before copying it back into a project.
Smart processing
Generate, convert, or validate technical data with purpose-built controls.
Supported formats
Technical formats and syntaxes suited to each generator, converter, or validator.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Guide
How to use this tool
- 1
Paste your JavaScript code
Enter or paste the script you want to format or minify.
- 2
Choose the transformation
Run formatting for more readable code or minification for a more compact version.
- 3
Inspect the formatted code
Check strings, comments, and unusual language constructs before reusing the generated code.
Tips and best practices
- Use formatting to inspect a minified snippet, compare a change, or make block structure easier to follow.
- Minification favors compact output, so keep a readable source file for future edits.
Frequently asked questions
What is the difference between formatting and minifying JavaScript?
Formatting applies consistent whitespace and indentation for readability. Minification removes unnecessary whitespace and line breaks to produce more compact code.
Does formatting change how the script works?
The goal is to preserve behavior while changing presentation. Still, review the output when a script uses unusual syntax or constructs that can be sensitive to line breaks.
Is my JavaScript code uploaded to a server?
No. Formatting and minification run locally in your browser.
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