FLIF is a novel lossless image format which outperforms PNG, lossless WebP, lossless BPG, lossless JPEG2000, and lossless JPEG XR in terms of compression ratio.


libjpeg is described as 'Widely-used free software library written in C which implements JPEG decoding and encoding functions alongside various utilities for handling JPEG images' and is an app in the development category. There are seven alternatives to libjpeg for Linux, Mac and Windows. The best libjpeg alternative is FLIF, which is both free and Open Source. Other great apps like libjpeg are libpng, Guetzli, MozJPEG and libjpeg-turbo.
FLIF is a novel lossless image format which outperforms PNG, lossless WebP, lossless BPG, lossless JPEG2000, and lossless JPEG XR in terms of compression ratio.


libpng is the official Portable Network Graphics (PNG) reference library (originally called pnglib). It is a platform-independent library that contains C functions for handling PNG images. It supports almost all of PNG's features, is extensible, and has been widely used and...
Guetzli is a JPEG encoder that aims to improve the web experience through highly optimized image compression that still yields great image quality. The encoder requires substantially more time than libjpeg but the results have been considered much more impressive in human rated...


MozJPEG reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders.
libjpeg-turbo is a derivative of libjpeg that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems. On such systems, libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all...
Libtiff is a library for reading and writing Tagged Image File Format (abbreviated TIFF) files. The set also contains command line tools for processing TIFFs.