For QA Engineers
Upload two screenshots and see exactly which pixels changed. Set a tolerance threshold to ignore anti-aliasing noise. Get a highlighted diff image with a single click — no setup required.
Use cases
Upload a screenshot before and after your deploy. See exactly what moved, shifted, or disappeared — at pixel level.
Same page, Chrome vs Firefox. Spot layout differences that only appear in specific browsers or viewports.
Before and after a UI library update. Catch subtle changes in spacing, typography, or color that slip through code review.
Also useful
Testing API changes? Paste two JSON payloads and see exactly what changed. Structure-aware — whitespace differences are normalized automatically. Works with YAML too.
Compare Files works entirely in your browser. There is no server that receives, processes, or stores your file data. Not because we promise not to look — but because we architecturally cannot. All comparison logic runs locally in JavaScript.
No signup required for text and free features. Image and JSON comparison unlocked with a one-time $9 payment.
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