lossless-compression

Fast In-Memory Data Compression Algorithm (header-only C/C++) 540+MB/s compress, 3000+MB/s decompress, ratio% better than LZ4, Snappy, and Zstd@--1

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.

Lossless AI compression: 33% less GPU memory, bit for bit.

🗜️ Library and application for lossless, format-preserving, two-pass optimization and repair of Vorbis data, reducing its size without altering any audio information.

tiny dependency-free lossless compressor for BC/DXT texture streams (C99, ~1000 LoC)

Private, provider-neutral context compression for LLMs. Reversibly compress schemas and logs inside your perimeter with zero third-party calls.

Shrink PNG and JPEG images losslessly. Available for any Linux distribution on Flathub and the Snap Store.

TinyZZZ includes GZIP, LZ4, ZSTD, LZMA compression algorithms written in C language, unlike the official code, this code mainly focuses on simplicity and easy to understand.

fc is a research-grade, lossless floating point compressor.

A kompakt macOS app to compress images and videos instantly.

An online .txt file compressor, de-compressor tool which uses Huffman Coding for Lossless data compression.

Losslessly compress the tool output your AI agent sends the model, prove every value survived, and report the exact tokens removed. Run it as a proxy, a library, or middleware.

NZ1 - NanoZip 1: ultra-fast, dependency-free, portable C compression library optimized for embedded and high-performance use. Full docs: https://ferki-git-creator.github.io/nz1-site/

A tool to generate optimized hardware files for univariate functions.

An adversarial neural network that restores the high fidelity audio lost during lossy compression

Error Code Modeler: lossless compression for raw CD images (BIN, CDI, NRG, CCD) by stripping redundant ECC/EDC sector data. Modern C23 rewrite with streaming stdin/stdout, CUE sheet generation, and Linux/macOS/Windows builds.

Multi-language implementations of CCSDS 124.0-B-1 in C, C++, Python, Go, Rust, and Java. The lossless compression standard for fixed-length spacecraft housekeeping telemetry, based on ESA's patented POCKET+ algorithm and built from low-level OR/XOR/AND operations to run on low-power spacecraft processors under tight real-time constraints.

Lossless-first prompt compression for JSON, YAML, CSV, and Markdown. Library, CLI, MCP server, desktop app, and browser extension.

JPEG XL toolkit for photographers. Full ICC profile and 16-bit depth preservation — lossless or lossy. TIFF↔JXL, JPEG↔JXL, JXL→JXL recompression, JXL→PNG with EXIF/XMP. Multiple folder modes for Capture One and Lightroom.

A lossless token-optimization codec for LLM agents — cut input tokens up to 82%, nothing dropped, every fact kept. Drop-in proxy + one-line Python API for Claude Code, Codex, Cursor, OpenAI, Anthropic & Ollama. pip install foveance