XML Formatter
Pretty-print and validate XML with clear error messages.
Runs entirely in your browser - your files are never uploaded
What is XML Formatter?
XML Formatter is a free, web-based utility designed for instant, local developer tools tasks. It allows users to compute, format, convert, or edit data directly in their browser without installing software or registering an account.
- 100% Free & Unlimited Usage
- 0% File Uploads (100% Client-Side Privacy)
- Instant Real-Time Calculations
- Mobile, Tablet & Desktop Compatible
How to use XML Formatter
Select or Enter Input
Provide your source file or type your values into XML Formatter.
Configure Settings
Adjust parameters, formatting options, or units in real-time.
Get Instant Output
Download the final processed file or copy the generated output.
About the XML Formatter
Paste a feed, a SOAP envelope or a configuration file to get a properly indented document with one node per line. The tool parses your input first, so malformed XML is reported with the parser's own message instead of silently mangled output.
Use it to inspect API responses, tidy up a sitemap before submitting it, or make a legacy config readable again. Minify mode collapses the document back down when you need the smallest possible payload.
Frequently asked questions
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