What does this tool do?
The XML Formatter turns compact or messy XML documents into a clean, indented, readable structure, or minifies them down to a single line. It is handy for developers, sysadmins, and anyone working with API responses, configuration files, or SOAP requests.
How to use it
- Paste or type your data into the left field.
- The result is generated instantly on the right.
- Use the Copy button to grab the output.
Choosing between format and minify
The tool works in two modes. Format mode indents tags by nesting depth using either 2 or 4 spaces and places each element on its own line, which is perfect for debugging and code review. Minify mode strips every unnecessary whitespace between tags, shrinking the file to the smallest size for network transfer or production use. Switching between the two lets you instantly view the same document in both a readable and a compact form.
Built-in validation
Every XML you type is parsed instantly with the browser's DOMParser engine. If the document is well-formed, a green 'Valid XML' badge appears; if there is an unclosed tag, bad nesting, or an illegal character, a parse error message pinpoints the problem. This means you catch structural mistakes before formatting and resolve syntax issues in seconds rather than minutes.
Frequently asked questions
Can I change the indentation size?
Yes. In format mode you can choose 2 spaces or 4 spaces, and the output updates immediately.
What happens if I enter invalid XML?
The output stays empty and a red warning shows the parse error detail so you can fix it.
Does minify mode break comments or CDATA sections?
No; only whitespace between tags is collapsed, while content and special sections are preserved.
Is XML Formatter free?
Yes. XML Formatter and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. XML Formatter works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.