There are 2 repositories under texture-compression topic.
Tool suite for Texture and 3D Model Compression, Optimization and Analysis using CPUs, GPUs and APUs
HDR, PFM, DDS, KTX, EXR, PNG, JPG, BMP image viewer and manipulator
CLI tool for texture compression using ASTC, ETC, PVRTC and S3TC in a KTX container.
real time ASTC texture compression by computer shader
How to do DXT/BCn texture compression in Unity using compute shaders
Goofy - Realtime DXT1/ETC1 encoder
Texture compression library and tool.
A Paint.NET filetype plugin that adds support for some of the DDS formats introduced in DirectX 10 and later.
Fast, high-quality texture compression library for many formats
A CPU-based DDS encoder optimized for fast batch conversions with high encoding quality.
An attempt to port BC7E texture compressor to a GPU compute shader
A small library for S3 texture compression (DXT1-5/BC1-5). Port of stb_dxt.h
Hardware texture Compression via OpenGL
Game Engine, without mess
Collection of image processing and texture manipulation tools, designed to be integrated in game tools and asset processing pipelines
An image converter primarily for video-game development and general image resampling/conversion.
Forge textures for the GPU age. Convert PNG/JPG to KTX2 with blazing fast compression. 90% smaller files, hardware-accelerated loading for Phaser, Three.js, and Babylon.js.
Batch image format conversion tool
Gradle plugin for the Mali Texture Compression Tool