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lz4

lz4• Pinned

lz4: A lossless compression algorithm.

What problem it solves

Applications and data streams need compression without introducing data loss. The project provides library and command-line interfaces, configurable compression behavior, and formats for both individual blocks and streaming frames.

Key features

  • Configurable compression — Compression speed can be adjusted dynamically through an acceleration factor, while the LZ4_HC derivative favors compression ratio over CPU time.

    Source: README

  • Library and command-line interfaces — The project provides a compression library and a command-line utility, with API headers for block, high-compression, and frame operations.

    Source: README, lib/lz4.h

  • Dictionary compression — Dictionary compression is supported through both the API and CLI. Any input file can serve as a dictionary, with its final portion used for compression.

    Source: README

  • Block and frame formats — The raw block format handles compression blocks, while the frame format organizes blocks for streaming files and data streams. Interoperable implementations are expected to follow the frame format.

    Source: README, doc/lz4_Frame_format.md

  • Multiple build and installation options — The Makefile follows standard conventions and supports parallel builds. The repository also includes alternative build systems and documents installation through vcpkg.

    Source: README, Makefile

Quick start

Copied verbatim from the project's README.

make
make install     # this command may require root permissions

Who it may suit

This project may suit developers and system administrators who need a lossless compression library or command-line utility for files, data streams, or applications.

Topics to discuss

  • Which APIs or command-line workflows should receive more examples for new users?

  • How should the documentation explain the trade-off between acceleration and compression ratio?

  • What integration examples would be most useful for streaming and dictionary compression?

Written by ReadmeX AI from the project's README, source and public GitHub data; it may contain mistakes.

Read the original README https://github.com/lz4/lz4#readme

ReadmeX opened this community for a trending project; it is not run by the project. Maintainers can claim it from the community page.

github.comhttps://github.com/lz4/lz4

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