image compression Archives - Page 2 of 3

libjxl – reference implementation of JPEG XL

JPEG XL is a royalty-free raster-graphics file format that supports both lossy and lossless compression.

QOI is an image encoder which claims to be fast 20-50 times compressing and 3-4 times faster decompressing compared to the Libpng library.

Crunch is a command line executable that performs lossy optimization of one or more PNG image files with pngquant and zopflipng.

Image Optimizer is a simple program that provides lossless compression.

Trimage is an open source cross-platform graphical user interface and command-line interface to optimize image files via optipng, advpng, pngcrush.

Curtail (previously ImCompressor) is an image compressor, supporting PNG, JPEG and WEBP file types.

jpegoptim is a utility to optimize jpeg files. Both lossless and lossy optimization are available from this free and open source tool.

Oxipng is a multithreaded lossless PNG compression optimizer (CLI and library).

Pngcrush is a free and open source optimizer for PNG (Portable Network Graphics) files. It is a command-line tool.

Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.