Multi-language Code Formatter
Format and beautify code in various programming languages with customizable options.
Supported Languages: JavaScript, TypeScript, HTML, CSS, JSON, Markdown
Features: Auto-formatting, customizable indentation, quote style, semicolons, and print width
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About the Code Formatter
The Code Formatter cleans up and consistently indents code in many languages using Prettier-style formatting, turning messy or inconsistent source into tidy, readable code. Paste in a jumble and get back something well-structured.
Consistent formatting makes code easier to read, review, and maintain, and it ends arguments over style. Whether you inherited badly formatted code or pasted a snippet that lost its indentation, formatting restores order in one step.
Formatting runs in your browser, so your code never leaves your device. There’s no upload or account; paste, format, and copy the clean result.
How to use the Code Formatter
- Paste your code into the input area.
- Select the language if prompted.
- Run the formatter to apply consistent indentation and style.
- Review the tidied output.
- Copy the formatted code back into your project.
Common use cases
- Tidying up code that was pasted and lost its indentation.
- Standardizing the style of a snippet before committing it.
- Making inherited or messy code readable.
- Formatting examples cleanly for documentation.
Frequently asked questions
Which languages are supported?
The formatter handles many common languages used in web development and beyond. Select the language so it applies the correct rules.
Does formatting change what my code does?
No. It only changes layout — indentation, spacing, and line breaks — while preserving the code’s behavior.
Can it fix syntax errors?
Formatting expects valid code; it organizes structure rather than fixing logic or syntax mistakes. Resolve errors first, then format.
Is my code uploaded anywhere?
No. Formatting happens in your browser, so your code never leaves your device.
How do I make code smaller instead?
Use the relevant minifier (CSS, HTML, or JavaScript) to compress code for production.