Browse categories

XML Formatter and Validator

Check well-formed XML and display a consistently indented copy.

Your data is processed locally in your browser and is never uploaded.Maximum: 4 MB per file. Input is not saved in browser storage or placed in the URL.
Output

How to use this tool

  1. Load XML, format it, and review parser errors before copying output.
  2. Review the live result and use Copy result when you need to share it.

How the transformation works

Browser DOMParser is used; DTD and entity declarations are rejected. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.

Processing rules

Browser DOMParser is used; DTD and entity declarations are rejected. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.

Step-by-step transformation

  1. Load XML, format it, and review parser errors before copying output.
  2. Browser DOMParser is used; DTD and entity declarations are rejected. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.
  3. Check the displayed result, then copy it if needed.

Worked example

A compact catalog document is expanded into an indented element structure.

Risk guidance

Frequently asked questions

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Check that the entered units and values match your situation, especially around dates, breaks, and rounding.

Related tools