Free Online Formatter Tools
Format, beautify, and minify your code instantly. Our formatter tools support JSON, HTML, CSS, SQL, XML, JavaScript, and Markdown — all running entirely in your browser with zero data transmission.
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting
SQL Formatter
Format and beautify SQL queries with syntax highlighting
Markdown Preview
Write Markdown and see the rendered HTML preview in real-time
JavaScript Minifier
Minify JavaScript code by removing comments and whitespace
HTML Formatter
Beautify or minify HTML code with proper indentation
CSS Formatter
Beautify or minify CSS code with proper indentation
XML Formatter
Format, beautify, and validate XML with proper indentation
Line Sorter & Deduplicator
Sort, reverse, shuffle, and deduplicate lines of text
About Formatter Tools
Code formatters transform messy, minified, or inconsistently styled code into clean, readable output with proper indentation and structure. Whether you're debugging an API response, cleaning up legacy code, or preparing files for production, these tools handle it in seconds.
100% Client-Side
All processing happens in your browser. No data is ever sent to any server.
No Signup Required
Use all tools instantly without creating an account or providing any personal information.
Always Free
Every tool is completely free to use with no hidden limits or premium tiers.