Compare XML
XML hides its structure from the reader, so element order, attribute order, namespaces and comments all survive a harmless reformat and a text diff reports them as changes. Comparing the nodes keeps a real value edit separate from a document that was merely rearranged — which is most of what makes an RSS or SOAP change reviewable.
Frequently Asked Questions About Online Calculators
Does a changed attribute count as a change?
Yes, and it is reported apart from element text. Attributes moving between two same-named elements is what the ordering options are there to settle.
Will it validate my XML?
No. It compares two documents against each other; it does not check either against a schema or DTD, so a well-formedness problem present on both sides goes unreported.
Will my original file be changed?
The result is downloaded as a separate file. Keep your original until you have checked the Node, attribute and value diff.
What should I check before using the result?
Open the Node, attribute and value diff in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
Is Compare XML free?
Yes. This tool is free with no trial limit, subscription, or watermark. Use it for personal and commercial projects without an account.
Are my files uploaded to your servers?
Comparison runs locally in your browser for supported formats. Your files and text stay on your device and are not stored on FileCompare servers.
What Is Compare XML?
FileCompare.org provides a free online tool for XML node, attribute, and value differences directly in your browser.
When you need to spot changes quickly, a side-by-side diff beats manual scrolling. Paste content into both panels or upload XML, RSS, Atom, and SOAP payloads, then review highlighted additions, deletions, and edits in one view.
Also known as a XML diff tool, compare XML online, XML difference checker, this page is built for developers, writers, analysts, and QA teams who need accurate diffs without installing desktop software. Processing runs locally in your browser whenever the format allows, which keeps sensitive data off third-party servers.
How to Use Compare XML Online
- Open the tool — No registration is required.
- Add the original — Paste or upload the first version in the left panel. Supported inputs include XML, RSS, Atom, and SOAP payloads.
- Add the modified version — Paste or upload the second version in the right panel.
- Choose options — Use the case, whitespace, formatting, key-order, or format-specific settings shown on this page when available.
- Review the diff — Inspect highlighted changes in the results area.
- Copy or export — Save the comparison output for tickets, pull requests, or audit logs.
Tip: If this page offers sample data, load it first to see how the comparison behaves before working with your own files.
Key Features of Compare XML
- Side-by-side diff — Clear view of XML node, attribute, and value differences with color-coded additions and deletions.
- Multiple input methods — Paste text, upload files, and swap panels where supported.
- Format-aware — Handles XML, RSS, Atom, and SOAP payloads with sensible defaults.
- Privacy-first — Browser-side processing; no server upload for supported formats.
- Free and unlimited — No account, watermark, or export cap for normal use.
- Cross-platform — Works on Chrome, Firefox, Safari, and Edge on desktop and mobile.
- No installation — Web-based diff checker; open the page and compare immediately.
Zero Data Retention — Compare Securely in Your Browser
FileCompare.org runs supported comparisons in your browser: your files and pasted text stay on your device. Nothing is uploaded, stored, or logged on our servers for browser-side formats.
That matters when you diff contracts, API keys, customer data, or unreleased code. You get instant side-by-side results without sending content over the network.
Common Use Cases
Teams choose an online diff when they need XML node, attribute, and value differences without a heavy IDE or desktop suite. Typical scenarios include:
- RSS and Atom feed validation
- Enterprise XML integration testing
- SOAP message comparison
- Config migration review
Because the tool is web-based, remote collaborators can share the same workflow from any location—useful for agencies, open-source maintainers, and distributed QA teams.
Tips for Best Results
Validate well-formed XML first—malformed inputs produce misleading diff output.
When a portal or pipeline rejects your file, compare its encoding, line endings, and size limits with your source, adjust settings, and run the diff again.
Bookmark this page for repeat jobs—controls stay visible between uploads, which speeds up daily review cycles.
Related Workflows
If you are checking XML merge and validate, RSS feed comparison, SOAP message diff, this compare XML page keeps the comparison focused on the relevant format and workflow. Use the related tools in the navigation when the input changes from text to structured data, lists, documents, or images.