High-compression data archiver and decompressor in C, achieving better ratios than gzip at the cost of slower speed.

Fast, modern compression algorithm and command-line tool with better compression ratios and speed than gzip or bzip2.

LZ4 is a C compression library and command-line tool optimized for speed over ratio, trading compression density for extremely fast encode/decode.

High-performance JPEG codec library (C) with 2-4× faster compression/decompression than libjpeg.

High-performance zlib-compatible C compression library optimized for modern CPUs.

Generic-purpose lossless compression algorithm with LZ77, Huffman coding, and context modeling; similar speed to deflate with denser compression.

C library for encoding and decoding AV1 video streams.

Open-source JPEG2000 Part 15 (HTJ2K) codec library and command-line tool for lossless and lossy image compression.

Real-time lossless compression library written in C, with fast compression/decompression for memory-constrained systems.

Data compressor using Burrows-Wheeler transform algorithm, library and command-line tool.

Image encoding/decoding library and command-line tools for WebP format with lossy and lossless compression.

Audio codec library for lossy compression of voice and music.

Shared library implementing VP8 and VP9 video codecs.

C library and command-line tools for encoding and decoding AV1 Image Format (.avif) files with support for all YUV formats and bit depths.

High-quality MP3 encoder library and command-line tool for converting audio to MPEG Layer III format.

C library and CLI tools for reading and writing tar, cpio, zip, ISO, and other archive formats.

JPEG XL image codec library and command-line tools for modern lossless and lossy still-image compression.

C library for reading, creating, and modifying ZIP archives with zstd and xz support.

Fast C library and utilities for DEFLATE, zlib, and gzip compression/decompression with x86/ARM SIMD optimization.

C library for encoding and decoding JPEG-2000 images with optional JPEG support.

Fast compression/decompression C library optimized for speed over ratio.

C library implementing Adaptive Entropy Coding with Golomb-Rice algorithm for lossless data compression.

Shared library implementing the Vorbis audio codec for lossy compression and playback.

Free Lossless Audio Codec (FLAC) command-line encoder/decoder and C library for lossless audio compression.

General-purpose lossless data-compression C library, ubiquitously used in gzip and PNG.

C++ implementation of 7-Zip archiver with support for modern codecs (Zstd, Brotli, LZ4, LZMA2) on Unix-like systems.

Create and manage ZIP archive files from the command line.

Open-source video codec and library for lossy video compression with royalty-free licensing.

High-compression file archiver supporting 7z, ZIP, RAR, and other formats with strong encryption.

C library for reading, writing, and manipulating Windows Imaging Format (WIM) files.

C library for reading and writing ZIP archives using zlib compression.

Parallel gzip compression command that uses multiple cores for faster compression and decompression.

Open-source audio codec optimized for speech compression, written in C.

Lossy PNG compressor that reduces file size by quantizing color palettes.

C++ shared library for rapid encoding and decoding of raster images using LERC (Limited Error Raster Compression) format with user-defined error bounds.

C library for fast, block-oriented lossless compression with shuffle filters.

C++ library and reference codec for Google's Ultra HDR image format, enabling HDR image compression and decoding.

C library providing hardware-accelerated CRC32/CRC32c checksums with software fallback.

C99 shared library implementing Huffman encoding/decoding and compression algorithms for AWS C SDK.

MPEG-4 video codec library with fast, high-quality encoding and decoding.

JPEG encoder library with improved compression efficiency, compatible with libjpeg API.

Wavelet-based image compressor command-line tool for lossy/lossless image compression.

Command-line JBIG2 encoder for compressing monochrome documents and images with symbol extraction and PDF embedding support.