Visual Regression Testing Python Packages

visual-comparison

Publised on PyPI Repository that compares two images with the same sizes and shows the differences visually by drawing rectangles. Useful for Visual Regression UI Automation Testings.

layoutlens

AI-assisted UI testing: natural-language visual checks plus deterministic WCAG accessibility audits via axe-core

shotbox

Reproducible screenshots of real programs in a sealed session: X11 on Xvfb or Wayland under headless sway, with a private D-Bus and scratch home. Waits for readiness instead of sleeping, drives keys and the pointer, and compares pictures. Python, CLI and Playwright helpers.

tinyvdiff

Minimalist visual regression testing plugin for pytest

testivai

Local-first visual regression testing for Playwright, Selenium, WebdriverIO, Python, Java and Ruby. Every screenshot is paired with a DOM and computed-style snapshot, so a diff arrives as a verdict — "style-only change on button.cta", "likely render noise" — not a wall of red pixels. MIT, no account, nothing uploaded.

micooc

A simple screenshots compare solution for visual regression test