Practical and minimal image viewer

Image viewer. Fast, easy to use. Optional video support.

nomacs is a free image viewer for windows, linux, and mac systems.

Fork of JPEGView by David Kleiner - fast and highly configurable viewer/editor for JPEG, BMP, PNG, WEBP, TGA, GIF and TIFF images with a minimal GUI. Basic on-the-fly image processing is provided - allowing adjusting typical parameters as sharpness, color balance, rotation, perspective, contrast and local under-/overexposure.

A terminal image and video viewer.

一款轻量且飞快的看图软件，支持 AVIF、HEIC、JPEG-XL 和 实况照片 等超多新兴图像格式！A lightweight and lightning-fast image viewer that supports a wide range of emerging image formats such as AVIF, HEIC, JPEG-XL, and Live Photos!

claiming to be the best image viewer / photo collection browser

An image and texture viewer for tga, png, apng, exr, dds, pvr, ktx, ktx2, astc, pkm, qoi, gif, hdr, jpg, tif, ico, webp, and bmp files. Uses Dear ImGui, OpenGL, and Tacent. Useful for game devs as it displays information like the presence of an alpha channel and querying specific pixels for their colour.

A homebrew lightweight image viewer.

A GTK image viewer, manga reader, and booru browser

A small single file image viewer written in C/C++.

Quantitative Image Analysis in C++, MATLAB and Python

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.

Image viewer for image processing experts

PDF and image viewer for the Linux framebuffer.

PhotoQt Image Viewer (mirror repo) - https://photoqt.org - main repo (for pull requests, etc.) at https://gitlab.com/lspies/photoqt

Simple, cross-platform image viewer

Fork of qView image viewer

An image viewer designed for comparing images and examining pixel differences

A cross-platform lightweight image viewer for a fast image preview.