justnullname / QuickView

The fastest Direct2D-powered image viewer for Windows. Features multi-threaded JXL/AVIF decoding, GPU acceleration, and a borderless geek UI. Supports WebP, RAW, & QOI with visual settings and auto-updates. Portable & SIMD-optimized.

WinMerge / winmerge

WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.

mapbox / pixelmatch

The smallest, simplest and fastest JavaScript pixel-level image comparison library

americanexpress / jest-image-snapshot

✨ Jest matcher for image comparisons. Most commonly used for visual regression testing.

dmtrKovalenko / odiff

A very fast SIMD-first image comparison library (with nodejs API)

sneas / img-comparison-slider

Image comparison slider. Compare images before and after. Supports React, Vue, Angular.