ADVANCED DATA
Free XML Formatter online
Format XML code.
XML Formatter on DocTools helps you format XML code, with no account needed. Add your file, adjust the XML Formatter options if you need to, then download the result immediately. XML Formatter runs locally on your device, so nothing is uploaded to a server.
- Free to use
- No signup
- No uploads
- Works offline
Why use XML Formatter
- format XML code without installing software
- Your file is processed on your device by XML Formatter, never uploaded
- XML Formatter needs no account, email address or payment details
- XML Formatter is batch-friendly: reuse it immediately on the next file
- XML Formatter is keyboard accessible and screen-reader friendly
- XML Formatter is free forever, with no watermark on the result
XML Formatter runs entirely inside your browser. Your file is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use XML Formatter
- Add your file Drag your file onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how XML Formatter handles your input.
- Process it XML Formatter works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your file stays on your device while XML Formatter works. XML Formatter never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so XML Formatter starts the moment you add your file.
No signup, no limits
Use XML Formatter as many times as you want. XML Formatter asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, XML Formatter keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For developers
Developers use XML Formatter to debug and ship faster without installing software: format XML code on a shared or locked-down machine.
For freelancers
XML Formatter helps freelancers send client deliverables quickly, since your file never leaves the laptop it was created on.
For support teams
XML Formatter helps support teams answer customer requests quickly, since your file never leaves the laptop it was created on.
How it works
XML Formatter loads your file into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of XML Formatter happens inside your browser sandbox.
Frequently asked questions
Is XML Formatter free to use?
Yes. XML Formatter is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does XML Formatter upload your file to a server?
No. XML Formatter processes your file inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in XML Formatter.
Do I need to install anything to use XML Formatter?
No installation is needed. XML Formatter runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use XML Formatter on a phone or tablet?
Yes. The XML Formatter interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your file when I close the tab?
It is discarded. XML Formatter keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
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Last updated: 2026-09-07