The best free XML formatter indents and beautifies your XML in the browser, so nothing is uploaded. It is free with no account, makes messy markup readable, and keeps your data on your own device.
XML from an API, a config file or an export often arrives as one long line or with inconsistent spacing, which is painful to read and debug. The best formatter reindents the elements into a clean nested structure so you can see the hierarchy at a glance, spot a missing tag, and understand the document without squinting.
XML frequently carries real data, so a client-side formatter that runs in your browser keeps that content on your machine rather than sending it to a server. Because it works locally the formatted output appears immediately, there is no account and no cost, and the page keeps working offline once it has loaded. That makes it a safe default even for internal or sensitive documents.
No. Formatting runs in your browser, so nothing is sent to a server.
Yes. It indents elements so the document hierarchy is easy to read.
Yes. There is no account or limit.