JavaScript Formatter
Beautify and format JavaScript code
Beautify and format JavaScript code. Key features include Customizable indent size and Code syntax highlighting. Use it for everyday development and data tasks. All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Encrypted with HTTPSProcessed in your browser
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Actions:
How to Use
- Paste your JavaScript code
- Choose formatting options (indent size, etc.)
- Click "Format" to beautify
- Copy the formatted code
Features
- Customizable indent size
- Code syntax highlighting
- Minify and beautify modes
- Error detection
- Copy to clipboard
Frequently Asked Questions
Can it format minified JavaScript?
Yes. Paste minified JavaScript and the tool will beautify it with proper indentation and line breaks.
Does it detect syntax errors?
Yes. Invalid JavaScript is flagged with error messages and location information.
Can I customize the formatting style?
Yes. You can adjust indent size, quotes style, and other formatting preferences.
What developer tools are available?
We offer JSON formatter, Base64 encoder/decoder, UUID generator, CSS minifier, JavaScript formatter, HTML previewer, regex tester, SQL formatter, and more tools.
Are these developer tools free?
Yes. Every developer tool is free, requires no sign-up, and runs entirely in your browser.
Is my code data safe?
All processing is client-side. Your source code, API keys, and data never leave your browser, keeping your intellectual property secure.
Do these tools support large files?
Yes. The tools handle large payloads efficiently. Very large files (10MB+) may take a moment to process depending on your device.
Can I use these tools offline?
Once the page is loaded, most tools work entirely in your browser without an active internet connection.
Privacy & Security
All processing happens entirely in your browser using client-side JavaScript. Your files and text are not uploaded to Tool-web's server.
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