Instantly view and format messy XML data into a readable, collapsable tree structure.
### The Ultimate Free XML Viewer & Formatter Working with large, unformatted XML (eXtensible Markup Language) files can be incredibly tedious. When systems export API responses, sitemaps, or configuration files, they often minify the XML into a single endless block of text to save space. Trying to read or debug this "minified" code is nearly impossible without the right tools. Our **Free XML Viewer and Formatter** is the perfect solution to instantly convert messy XML into a beautiful, human-readable structure. ### 100% Secure & Client-Side Processing Many online XML beautifiers upload your code to their backend servers for formatting. If your XML contains sensitive API keys, customer data, or proprietary configurations, uploading it to a third-party server is a massive security risk. We engineered our XML Viewer to run entirely in your web browser using modern WebAssembly and JavaScript. **Your XML never leaves your computer**, ensuring 100% privacy and security. ### Advanced Features - **Auto-Indentation:** Automatically adds the perfect tabs and spaces to deeply nested XML tags. - **Syntax Highlighting:** Color-codes tags, attributes, and text values so you can easily spot errors. - **Tree View:** Easily collapse and expand large parent nodes to focus only on the data you care about. - **Lightning Fast:** Because it runs locally on your machine's CPU, it can parse and format megabytes of XML data in milliseconds.
An XML formatter (or beautifier) is a tool that takes messy, unformatted, or minified XML code and applies proper indentation and line breaks, making it easy for humans to read and debug.
Yes, absolutely. Our XML viewer runs 100% client-side. Your data is processed directly inside your own web browser and is never uploaded, stored, or transmitted to any server.
Yes, it is highly optimized using modern browser APIs to format large XML files (like massive sitemaps or database exports) smoothly and without crashing.
Yes, there is a convenient one-click 'Copy' button that instantly saves the beautified XML to your clipboard.
While it doesn't automatically repair missing tags, the built-in syntax highlighting will help you easily identify where your XML structure is broken.