#compression

Lossless compression C library built for ultra-fast decode. Faster than LZ4 (40-75%+ on ARM64), at a better ratio. Official Rust, Python, Node.js, Go and WASM bindings. Write-once/read-many, with optional seekable archives for O(1) random access.

Rust crate package to link to a system libz (zlib)

PNA (Portable Network Archive) is a highly scalable archive format that can be compressed, encrypted, and split. Also, its data structure is inspired by the PNG data structure.

Node.js compression middleware

Optimized Go Compression Packages

Read GRIB files with Rust

Fast KV-cache quantization for Apple Silicon (MLX) — 43 research-adapted compression methods with Metal kernels

Rust implementation of the FastLanes compression library

Adaptors between compression crates and Rust's async IO types

Compress 🗜️

Short-term memory proxy gateway with proactive memory surfacing for AI agents

Lossless codec for numerical data

Taking the Java out of Kafka

Mesh optimization library that makes meshes smaller and faster to render

Cut your Claude bill 59–70% by rendering bulky LLM context as dense PNG pages — 100% read accuracy, exact per-provider billing math (Anthropic/OpenAI/Gemini), fail-closed gates, measured benchmarks. CLI + proxy + Cloudflare Workers. Docs in 42 languages. Part of the OmniRoute family.

Pure Rust Zstandard (zstd) compression library and CLI: drop-in libzstd replacement with a C ABI, levels 1-22, streaming, dictionaries, long-distance matching, SIMD, no_std and WebAssembly. No C, no FFI, no cmake.

Plain Java unrar library

Fast, memory-safe Rust zstd codec with all-level decode, -8..4 encode, and dictionary training.

ALP floating point compression in Rust

Persistent memory for LLMs and apps. Content-addressed storage with dedupe, compression, full-text and vector search.

Rust implementations of succinct data structures

Pure-Rust, no_std collection of 30+ compression/decompression codecs (deflate, gzip, zlib, zstd, brotli, lzma/xz, lz4, bzip2, RAR, StuffIt, LHA, ARC, and more) behind one uniform streaming trait — each gated by its own Cargo feature. 100% safe (forbid(unsafe_code)), zero runtime deps.

Golang library for dealing with 7-zip archives

Local proxy that compresses your LLM API requests so you pay less, with no change to the answers. Trims wasted tokens from prompts, history, tool output, and code before they're sent: -31% input / -74% output, measured live. Any provider, no extra model calls. Also an MCP server and embeddable library (Rust, Python, Ruby, Kotlin, Swift, JS/TS).

MinLZ is a LZ77 compressor, focused on realtime data compression

🗜️Compress Image, Video, and Audio same like Whatsapp 🚀✨

Carbon is a self-updating, lightweight, intelligent mod loader for Rust utilizing the latest C# and Harmony for the best performance and stability possible, fully compatible with Oxide.

Directory archiving CLI and library for ZIP, TAR, and layered compression across Node.js, Deno, and Bun.

Seekable ZSTD compression format implemented in Golang.

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