* [Fennec v1.0.0](https://github.com/shamspias/fennec) – Pure-Go image compression library using SSIM-guided binary search to minimize file size while preserving visual quality, with automatic format, resize, and quantization.

* [Image Optimizer v0.5.3](https://github.com/MogensenJesse/image-optimizer) – High-performance desktop application for batch image compression, resizing, format conversion and quality-preserving optimization.