Code Formatter
Free online multi-language code formatter. Format JS, TS, HTML, CSS, Markdown, YAML, JSON with Prettier. Get clean, consistent code. No signup, local browser processing.
How to Use Code Formatter
- 1Paste your code into the input area
- 2Select the programming language or let auto-detect handle it
- 3Adjust formatting options like indent size and line width
- 4Click Format to beautify the code
- 5Copy or download the formatted code
Frequently Asked Questions
Which programming languages are supported for formatting?
JavaScript, TypeScript, JSON, HTML, CSS, Markdown, and YAML are all supported. The tool uses Prettier under the hood, which is the industry-standard code formatter used by millions of developers worldwide.
Can I customize formatting options like indentation and line width?
The tool uses Prettier opinionated defaults which produce consistent, readable code. Currently the standard settings are applied (2-space indentation, 80-character line width). Custom configuration options may be added in a future update.
Is it safe to paste proprietary or confidential code into this tool?
Yes, completely safe. All formatting happens locally in your browser - your code is never sent to any server. This makes it safe to format proprietary, confidential, or sensitive code without any privacy concerns.
Is Code Formatter free, and do I need to sign up or upload my files?
Code Formatter is 100% free to use with no signup, no registration, and no usage limits. All processing happens locally in your browser - your files and data never leave your device, so no upload is required and your privacy is fully protected.