Is it safe to use the XML Formatter online?

Yes — and ours is safer than most. Many free online tools quietly upload your files to their servers to do the work. We don't. Everything happens inside your browser on your own device, so your files never reach the internet. There's no upload step, no server copy, and no way for us (or anyone else) to see what you're working on.

Are my files uploaded to a server?

No. There's no server-side processing here. The whole tool is a tiny app that runs in your browser — we don't even have a server that could receive your files. You can confirm this by opening your browser's network tab while you use the tool: nothing leaves your device.

Do I need to sign up or pay?

No. There's no account, no email collection, no credit card. The tool is free to use as much as you want, on as many files as you want. We're supported by a few unobtrusive ads on the page — not by your data.

Does it validate against an XSD/DTD?

No — only well-formedness is checked. For schema validation use a dedicated tool.

Are CDATA sections preserved?

Yes — CDATA, comments, and processing instructions are all kept in the formatted output.

XML Formatter

Format XML for readability or strip whitespace for transport. Validates against the browser's native XML parser, so errors are flagged with line/column info.

Features

Three actions: Pretty (with 2/4/8-space indent), Minify, Validate
Native browser XML parser — fast, standards-compliant
Errors with line and column
Handles namespaces, CDATA, comments, processing instructions
Live conversion

How to xml formatter

Paste your XML — Either pretty or minified — the tool handles both.
Pick action — Pretty for human reading, Minify for transport, Validate to just check.
Copy — Click Copy on the output.

Frequently asked questions

Is it safe to use the XML Formatter online?: Yes — and ours is safer than most. Many free online tools quietly upload your files to their servers to do the work. We don't. Everything happens inside your browser on your own device, so your files never reach the internet. There's no upload step, no server copy, and no way for us (or anyone else) to see what you're working on.
Are my files uploaded to a server?: No. There's no server-side processing here. The whole tool is a tiny app that runs in your browser — we don't even have a server that could receive your files. You can confirm this by opening your browser's network tab while you use the tool: nothing leaves your device.
Do I need to sign up or pay?: No. There's no account, no email collection, no credit card. The tool is free to use as much as you want, on as many files as you want. We're supported by a few unobtrusive ads on the page — not by your data.
Does it validate against an XSD/DTD?: No — only well-formedness is checked. For schema validation use a dedicated tool.
Are CDATA sections preserved?: Yes — CDATA, comments, and processing instructions are all kept in the formatted output.