Drop two documents above to compare them
Compare Documents — QA & Testing
Compare PDFs, Word docs, and other documents side by side. Private, in-browser. From €9.99/mo.
How to compare documents
- Upload the first document (PDF or DOCX).
- Upload the second version.
- Text is extracted locally in your browser and every change is highlighted inline.
Key features
- PDF and DOCX support in a single tool
- All text extraction runs in your browser — nothing sent to a server
- Side-by-side diff with inline change highlighting
- Page images tab: a pixel-level visual diff of each rendered PDF page, catching layout and formatting regressions the text diff can't see
- Unlocks with Pro — €9.99/mo
Common uses
- Compare test plan or specification documents between project versions
- Review QA or test summary reports between release candidates
- Diff compliance or certification documentation between software releases
Frequently asked questions
How do I compare documents online?
Upload the first document (PDF or DOCX). Upload the second version. Text is extracted locally in your browser and every change is highlighted inline.
Are my files private when I use this tool?
Yes. All comparison runs locally in your browser. Your files never leave your device and are never sent to any server — not a policy promise, but an architectural fact. There is no server receiving your data.
No AI means no hallucinations
Compare Files uses a deterministic, logic-based engine — not a language model. It reports every change that is actually in your files, and never invents one.
Your files never leave your device. Everything runs in your browser — no uploads, nothing stored.
No AI, so no hallucinations. A deterministic engine reports every real change and never invents one.
No upload, no server wait. Comparisons run locally and keep working offline once the page has loaded.