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.
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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. No account is required. Local formatting tools run in your browser; API Tester uses our server and has request limits.
Is my code data safe?
Formatters process text locally. API Tester sends the request URL, headers (including any API keys), and body through Tool-web's server to the destination API. HTML previews may request resources referenced by your code. Check the tool's processing note before entering sensitive data.
Do these tools support large files?
Capacity depends on the tool, input, and available browser memory. Server-assisted tools also enforce request and response limits.
Can I use these tools offline?
Local tools may work once their required code has loaded. API requests, remote resources, and other network features require a 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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