Introducing Our Free JSON, JS, CSS, HTML & XML Formatter, Minifier and Converter
As developers, we frequently need to format messy JSON responses, minify CSS for production, or quickly convert SCSS files into standard CSS. The web is full of free formatting tools, but they almost all share a significant problem. They send your code, which might contain proprietary algorithms, API keys, or sensitive customer data, to an external server for processing.
Today we are releasing the AAMServices Code Formatter, Minifier and Converter. It is a completely free, browser-based utility designed to handle your daily code formatting needs with absolute privacy and zero latency.
Complete Privacy with 100% Client-Side Processing
The core philosophy behind all our developer tools is privacy by design. Our new Code Formatter processes everything directly on your device. We use advanced WebAssembly modules and optimised browser APIs to run complex tasks like full AST JavaScript parsing and SCSS compilation natively in your browser.
Your code never leaves your computer. There are no API calls to our backend and no data is stored on our servers. You can even save your preferred indentation settings locally to your device, ensuring a seamless experience every time you return.
Supported Languages and Formats
We have built support for the most common web development languages, offering a suite of actions for each one.
- JSON: Beautify, deeply minify, convert to XML, or convert directly into a JavaScript Object literal.
- JavaScript: Format your scripts cleanly, or aggressively minify them using our browser-ported Terser compiler, which performs full Abstract Syntax Tree parsing to guarantee output correctness.
- CSS, SCSS, LESS and PostCSS: Format stylesheets, collapse whitespace for production, or fully compile SCSS and LESS code directly into standard CSS.
- HTML and XML: Beautify markup for readability, minify for deployment, or convert XML data structures into clean JSON.
A Modern, Dual-Pane Editing Experience
We designed the tool to be incredibly fast and user-friendly. Instead of relying on heavy, sluggish editor instances, we built a custom dual-pane interface powered by Prism.js syntax highlighting.
The left pane handles your raw input, automatically detecting the language if you paste large files. The right pane provides an instant, syntax-highlighted view of the output. We have even built a detailed error reporter. If you paste invalid JSON or write malformed SCSS, the right pane will immediately display a formatted error block, highlighting the exact line and column where the syntax broke.
Handling Massive Files Safely
If you regularly work with huge JSON payloads or massive log files, you know that web-based formatters often crash the browser when you try to type into them. We have implemented smart debouncing and file-size constraints. You can safely paste files with hundreds of thousands of lines. The tool will parse them efficiently without freezing your active tab.
Try It Now
Whether you need to quickly format an API response or compile a quick LESS snippet, our new tool is ready to use.
The tool is completely free, requires no account, and respects your privacy by keeping your data on your machine.
Ready to Start Your Project?
Have questions about building your eCommerce store or custom web application? Let's talk.