Argos
Open source visual regression testing for Playwright, Storybook and Vitest
Percy
AI-assisted visual testing by BrowserStack
UI Verify
Visual testing for coding agents: catch UI regressions on every pull request
Beyond Compare
Compare and merge files, folders, images and tables
WinMerge
Open source differencing and merging tool for Windows
Meld
Visual diff and merge tool for files, directories and VCS projects