JPEG XL image format reference implementation

IconFont is a way to build lossless images of pure color with font file。IconFont是一种通过字体文件来构建纯色图的方案。

Batch image resizer, optimiser and profiler using ImageMagick convert, OptiPNG, JpegOptim and optional ZopfliPNG, Guetzli and MozJPEG.

FLIF image viewer and QuickLook plugin for macOS

A brute-force, lossless JPEG/PNG image compressor written in BASH (no GUI dependencies).

Simple image optimizer for JPEG, PNG and GIF images on Linux, MacOS and FreeBSD.