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visual-comparison
Lightweight visual regression testing for Python automation.
Lightweight Python library for visual regression testing. Compare two screenshots, get an SSIM similarity score, and generate diff images with rectangles highlighting every visual change. Three lines of code, no complex setup. Works with file paths or NumPy arrays, supports Python 3.9–3.13 and NumPy 2.x. Built by a QA engineer for CI pipelines, UI automation, and cross-browser screenshot comparison. pip install visual-comparison - that's it.
Hey PH fam! 👋 I built this out of frustration - I was manually eyeballing screenshot diffs in my UI automation pipeline and kept missing subtle regressions that slipped into production.
visual-comparison is dead simple: give it two screenshots, it returns a similarity score and draws red rectangles around everything that changed. Three lines of code, one pip install.
Built this as a QA engineer with 8+ years in test automation. Would love feedback from anyone running visual regression in CI - what's missing?
About visual-comparison on Product Hunt
“Lightweight visual regression testing for Python automation.”
visual-comparison was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #156 on the daily leaderboard. Lightweight Python library for visual regression testing. Compare two screenshots, get an SSIM similarity score, and generate diff images with rectangles highlighting every visual change. Three lines of code, no complex setup. Works with file paths or NumPy arrays, supports Python 3.9–3.13 and NumPy 2.x. Built by a QA engineer for CI pipelines, UI automation, and cross-browser screenshot comparison. pip install visual-comparison - that's it.
On the analytics side, visual-comparison competes within Open Source, Developer Tools, GitHub and Development — topics that collectively have 638.3k followers on Product Hunt. The dashboard above tracks how visual-comparison performed against the three products that launched closest to it on the same day.
Who hunted visual-comparison?
visual-comparison was hunted by Basil Ahamed. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of visual-comparison including community comment highlights and product details, visit the product overview.
Basil Ahamed