Is this a complete development formatter?

No. It is intended for quick formatting of short code samples and does not include every rule or extension available in full development tools.

Can it fix syntax errors?

No. It formats generally valid code. JSON mode reports syntax errors.

Which indent sizes are supported?

Typically 2 or 4 spaces depending on the selected language.

Code Formatter

Format JavaScript, TypeScript, HTML, CSS, and JSON with consistent indentation and line breaks.

Files and content are processed locally in your browser and are not uploaded to our server.

About this tool

Paste a code sample and make it easier to read with consistent indentation and line breaks. Choose JavaScript, TypeScript, HTML, CSS, or JSON, then copy the formatted result.

How to use

Format JavaScript, TypeScript, HTML, CSS, and JSON
Choose two-space or four-space indentation
Format the selected language
Show clear syntax errors for invalid JSON
Copy the formatted code
Choose the language: Select the language that matches the code.
Paste the code: Enter or paste the code you want to format.
Format and copy: Format the code and copy the result.

Examples

Make compressed JSON easier to read
Format an HTML email template
Clean up CSS copied from a webpage
Prepare a code sample for documentation

Limitations

The tool uses lightweight formatting rules and does not replace a full development formatter
Invalid code may be only partly formatted or may display an error
The entered data is processed directly in your browser and is not sent to a server.

FAQ

Is this a complete development formatter?: No. It is intended for quick formatting of short code samples and does not include every rule or extension available in full development tools.
Can it fix syntax errors?: No. It formats generally valid code. JSON mode reports syntax errors.
Which indent sizes are supported?: Typically 2 or 4 spaces depending on the selected language.