Drop two screenshots to compare them pixel by pixel
Compare Screenshots — QA & Testing
Compare screenshots pixel by pixel to catch visual regressions before users do. From €9.99/mo.
How to compare screenshots
- Upload the before screenshot.
- Upload the after screenshot.
- Every visual change is highlighted — layout shifts, color changes, missing elements, moved components.
Key features
- Pixel-level visual regression detection
- Adjustable tolerance to filter rendering differences
- Highlights layout shifts, color changes, and missing elements
- Unlocks with Pro — €9.99/mo
Common uses
- Catch visual regressions before they reach users or production
- Compare UI rendering before and after a CSS, component, or framework change
- Validate rendering consistency across browsers, screen sizes, or OS environments
Frequently asked questions
How do I compare screenshots online?
Upload the before screenshot. Upload the after screenshot. Every visual change is highlighted — layout shifts, color changes, missing elements, moved components.
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.