Code Formatter - Free Online | FunToolX
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About this tool
Code Formatter is a free online developer tool. Format and beautify CSS/JS/SQL/XML code. Built for coders and engineers who want less friction. It runs entirely in your browser — no download or sign-up needed.
After pasting the code and selecting the language, the tool will automatically format it: uniformly indent, align brackets, add spaces, wrap, etc. Support options such as custom indentation (2 spaces, 4 spaces, Tab), quote style (single quotes/double quotes), ending comma, etc. You can also compress the code (remove white space and comments) to reduce volume.
The formatting engine uses Prettier (JavaScript/TypeScript/JSON/CSS/HTML), Black (Python), or WebAssembly versions of the formatting tool in other languages. Run on the browser side without uploading code. Supports syntax checking and prompts when errors are found.
Ideal for organizing copied code to make it readable, or unifying team code styles. Compression can reduce the size of the code for transmission or embedding.
Code formatting tool that supports code beautification and compression in multiple languages such as JavaScript, Python, JSON, HTML, CSS, etc., and can customize indentation and style.