Source: doc.rust-lang.org (std library reference) · crates.io database dump, 2026-07-25 (crates directory)Contact
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All 305,250 crates, alphabetically

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

lytok-rsLytok: High-efficiency binary serialization protocol for LLM and data infrastructure.21MIT OR Apache-2.0EncodingNetwork programming lywebSimple templating library designed for personal websites363MITParsing toolsTemplate engine lywsd03mmcRust support for scanning and reading Xiaomi Mijia LYWSD03MMC BLE temperature and humidity sensors33Apache-2.0 lzA CLI tool to list the 5 most recently accessed files in a directory tree, sorted by last access time.1,717MITCommand line utilitiesFilesystem lz-decompressRust bindings to lzlib for decompressing .lz files23,883BSD-2-ClauseCompressionExternal FFI bindings lz-fearA fast pure-rust no-unsafe implementation of LZ4 compression and decompression238,952MITAlgorithmsCompression lz-strA port of lz-string to Rust419,322MIT OR Apache-2.0Compression lz-stringimplementation of lz-string decompression5,318MIT lz11Library and command-line tool for working with Nintendo's LZ10 and LZ11 compression formats16MIT OR Apache-2.0Command line utilitiesCompression lz4Rust LZ4 bindings library.66,781,639MIT lz4-builderzero dependency, tiny lz4 decompression wrapper built for lodpm5,616MIT lz4-compressPure Rust implementation of raw LZ4 compression/decompression.225,564MIT lz4-compressionPure Rust implementation of LZ4 compression and decompression as a library44,149MITAlgorithmsCompression lz4-java-wrcA fork of `lz4jb` to ensure it gives back access to the underlying writer (wrc = "write continue") `lz4jb` is a Rust…65,935MITCompression lz4-pure-rsPure Rust LZ4 library473BSD-2-ClauseCompressionEncoding lz4-rsRust LZ4 bindins library.2,609MIT lz4-sysRust LZ4 sys package.85,553,750MIT lz4_decompressPure Rust implementation of lz4 decompression.35MIT lz4_flexFastest LZ4 implementation in Rust, no unsafe by default.115,232,223MIT lz4_flex-utilA program to compress and decompress with LZ41,754BSD-2-Clause lz4_flex_wasm_simdOpinionated LZ4 crate optimized for WASM SIMD and small binaries25MIT lz4_net_legacyAbout implementation of the C# LZ4Net stream format in rust using lz4flex1,504MIT lz4diffRust decoder/applier for Android OTA lz4diff patches21Apache-2.0CompressionEncoding lz4jbA Rust implementation of the LZ4BlockOutputStream format from https://github.com/lz4/lz4-java. This is not compatible with the…1,909MITCompression lz4rLZ4 CLI programs — Rust port of lz4-1.10.0/programs87GPL-2.0-onlyCompressionEncoding lz4ripFast, memory-safe Rust implementation of LZ4 compression with built-in dictionary training and no-alloc support3,182MITCompression lz4rip-coreShared types and constants for lz4rip encode/decode crates.2,781MIT lz4rip-decodeLZ4 block decompression for lz4rip.2,599MIT lz4rip-encodeLZ4 block compression for lz4rip.2,800MIT lz4utilA program to compress and decompress with LZ43,553BSD-2-Clause lz77Zero dependency pure rust implementation of the FastLZ LZ77 compression algorithm.1,707MIT OR Apache-2.0CompressionEncoding lz77_projecta limited implementation of the LZ77 algorithm for learning purposes162MIT lz_covA byted rust coverage crates13,178MIT OR Apache-2.0 lz_dietAn AVL balanced Discrete Interval Encoding Tree10,949MITData structures lz_etzynger_treeAn Etzynger tree implementation, this is an N-tree implemented using array storage1,539MITAlgorithmsData structures lz_eytzinger_treeAn Eytzinger tree implementation, this is an N-tree implemented using array storage4,809MITAlgorithmsData structures lz_fnvFowler-Noll-Vo hash functions for various integer types238,664MITAlgorithms lz_interval_tree_clockAn Interval Tree Clock implementation2,008MITAlgorithms lz_shared_udpFunctionality for a shared UDP socket5,211MITAsynchronousNetwork programming lz_stream_ioAsyncRead and AsyncWrite implementations for Streams and Sinks respectively2,117MITAsynchronousConcurrency lzavRust bindings to lzav compressor written in C2,494MIT lzbase62LZSS string compression with base62-safe text output37MITCompressionEncoding lzc-sdkRust SDK for LazyCat application and device APIs67MITAPI bindingsNetwork programming lzcompPlaceholder.1,544Apache-2.0 lzdLZ double-factor factorization3,400MITAlgorithmsCompression lzexeLZEXE 0.90/0.91/0.91e decompressor for DOS EXE files46MITCompressionNo standard library lzfDEPRECATED! An implementation of LZF, a very small data compression algorithm100,128BSD-3-Clause lzf-rustPure Rust LZF compression/decompression1,911ISC AND BSD-2-ClauseCompressionNo standard library lzf-sysFFI bindings for lzf41,293MIT AND BSD-2-ClauseCompressionExternal FFI bindings lzf_headersA small wrapper library for handling LZF compression with headers3,491MIT lzfooA pure Rust LZFSE command line tool.3,241MIT OR Apache-2.0 lzfseRust bindings for the LZFSE reference implementation.67,023MITAPI bindingsCompression lzfse-sysCrate to build the LZFSE reference implementation for lzfse-rs.72,165MITAPI bindingsCompression lzfse_rustA pure Rust LZFSE library.17,517MIT OR Apache-2.0 lzgitA modern, fast TUI file explorer with Git integration527MITCommand line utilitiesDevelopment tools lzhamHigh-level bindings for the lzham codec.6,105MITAPI bindingsCompression lzham-alpha-sysLow level FFI-bindings for the lzham alpha codec.3,505MITAPI bindingsCompression lzham-sysLow level FFI-bindings for the lzham codec.6,925MITAPI bindingsCompression lzhufEncoder and decoder for the LZHUF compression used by Sydex TeleDisk disk images303LGPL-3.0-or-laterCompressionEncoding lziffA cross-platform TUI diff & review tool with JetBrains-style snap-aligned side-by-side diffs36MITCommand line utilitiesDevelopment tools lziff-githubGitHub backend for lziff. Future plugin candidate; stays compile-time isolated from the lziff body.67MITDevelopment tools lziff-review-protocolPlugin protocol for lziff review providers (GitHub, GitLab, ...).97MITDevelopment tools lzipBindings to lzlib for lzip compression and decompression exposed as Reader/Writer streams.3,012MIT OR Apache-2.0API bindingsCompression lzip-parallelPure Rust parallel ZIP decompressor — multi-core DEFLATE decode for .zip archives498MIT OR Apache-2.0 lzip-sysBindings to lzlib for lzip compression and decompression exposed as Reader/Writer streams.6,773MIT OR Apache-2.0External FFI bindings lzjbLZJB (ZFS) fast LZ77-family compress/decompress codec36MITCompressionNo standard library lzjdRust implementation of the LZJD algorithm (https://github.com/EdwardRaff/jLZJD)7,695GPL-3.0AlgorithmsCompression lzlibLzip compression and decompression548BSD-2-ClauseCompression lzlib-sysLow-level bindings to lzlib compression library762BSD-2-ClauseAPI bindingsCompression lzmaLZMA format handling.39,337WTFPL lzma-adaptive-sysFFI bindings to sasquatch's LZMA adaptive library3,894GPL-2.0-only lzma-rsA codec for LZMA, LZMA2 and XZ written in pure Rust33,332,993MITCompression lzma-rs-headerlessA codec for LZMA, LZMA2 and XZ written in pure Rust9,848MITCompression lzma-rs-perf-expA codec for LZMA, LZMA2 and XZ written in pure Rust with performance experiments16,080MITCompression lzma-rustLZMA/LZMA2 codec ported from 'tukaani xz for java'1,201,833Apache-2.0 lzma-rust2LZMA / LZMA2 / LZIP / XZ compression ported from 'tukaani xz for java'15,205,415Apache-2.0CompressionNo standard library lzma-sdk-rsBit-exact pure-Rust port of the 7-zip LZMA SDK 23.01 encoder (byte-identical to LzmaEnc_MemEncode).439BSD-3-ClauseCompression lzma-sdk-sysRaw FFI bindings for the LZMA encoder/decoder parts of LZMA-SDK (7zip)1,540non-standard lzma-sysRaw bindings to liblzma which contains an implementation of LZMA and xz stream encoding/decoding. High level Rust bindings are…59,656,648MIT/Apache-2.0External FFI bindings lzma2LZMA format handling.3,015WTFPL lzma_tarballA simple library for reading and writing tarballs with lzma compression.5,082non-standardCompressionData structures lznintA library for compressing and decompressing data using the LZ-based compression format used by Nintendo in Super Metroid.1,802CC0-1.0 lznt1A pure Rust implementation of the LZNT1 compression algorithm used by Windows.4,139MITAlgorithmsCompression lzoSafe, dependency-free, no_std pure-Rust LZO1X decompressor — bounds-checked and fuzz-hardened for reading untrusted lzo1x_1 /…3,279MITCompressionNo standard library lzo-sysRaw bindings to the LZO compression library9,625GPL-2.0CompressionExternal FFI bindings lzo1xSafe Rust port of the LZO1X compression algorithm5,797GPL-2.0Compression lzo1x-1Safe Rust port of the LZO1X-1 compression algorithm3,193GPL-2.0Compression lzokayA minimal, MIT-licensed implementation of the LZO compression format.10,854MITAPI bindingsCompression lzokay-nativeA pure rust port of lzookay.587,366MITAlgorithmsCompression lzrLZ77-based Compression Program/Library written in Rust.695MIT OR Apache-2.0Compression lzrwRust bindings for the LZRW family of lossless data-compression algorithms14MITAPI bindingsCompression lzrw-sysRaw FFI bindings to the LZRW family of lossless data-compression algorithms18MITCompressionExternal FFI bindings lzsA LZSS (early implementation) en-/decompressor (lossless data compression, no_std capable, in pure Rust)1,525MITCompressionNo standard library lzssA LZSS en-/decompressor (lossless data compression, no_std capable, in pure Rust)331,243MITCompressionNo standard library lzss-cliA LZSS en-/decompressor CLI (lossless data compression, in pure Rust)2,904MITCompression lzutf8LZ-UTF8 string compression: an LZ77 back-reference format that is a byte-level superset of UTF-836MITCompressionEncoding lzvnSafe, clean-room LZVN encode/decode support for raw streams and Apple wrappers1,392Apache-2.0Compression lzvn-coreSafe, dependency-free, no_std pure-Rust LZVN decompressor — bounds-checked and fuzz-hardened for reading untrusted Apple LZVN…1,002Apache-2.0CompressionNo standard library lzwLZW compression and decompression.6,226,220MIT/Apache-2.0 lzw-compressThis Rust library provides a simple and efficient implementation of the LZW data compression algorithm. LZW is a widely used…1,595non-standardCompression lzxcLZX compression encoder. Produces streams decodable by the `lzxd` crate.52MIT OR Apache-2.0Compression lzxdDecompression implementation for Microsoft's LZXD compression format.5,053,150MIT OR Apache-2.0Compression lzy-codec一種變長文本編解碼方案,支持對Unicode進行編解碼。編解碼效率、存儲空間全面優於UTF-8,未來會替代UTF-8成為新的世界通用編解碼標準。44MIT lzy_pbkdf2A implementation for pbkdf2-hmac-sha1 pbkdf2-hmac-sha256 pbkdf2-hmac-sha512 hmac-sha1 and hmac-sha2561,733GPL-2.0-or-later WITH Bison-exception-2.2 lzycmtA lazy way to generate commit messages using AI42MITCommand line utilitiesDevelopment tools lzzzzFull-featured liblz4 binding for Rust.1,960,305MITAPI bindingsCompression mA C free / pure Rust mathematical library ("libm") for `no_std` code37,250BSD-2-Clause AND ISC AND MIT m-bus-application-layerM-Bus application layer parser (DIF/VIF, data records)409MIT m-bus-coreCore types for the m-bus-parser M-Bus protocol library585MIT m-bus-parserA library for parsing M-Bus frames27,679MIT m-bus-parser-cliA cli to use the library for parsing M-Bus frames11,266MIT m-bus-parser-wasm-packA wasm-pack to use the library for parsing M-Bus frames1,684MIT m-helperhelper for mippo2,563MIT OR Apache-2.0 m-oA command line tool for parsing Python dataclass reprs and pretty-printing them.10,891GPL-3.0Command line utilitiesDevelopment tools::Debugging m-showMy awesome crate20MIT m-systemLindenmayer system (L-system) modeling crate for developmental biology simulations43MITScienceSimulation m0-liquidity-sdkRust SDK for the M0 Liquidity API1,552MIT m0-portal-commonShared common utilities for M0 portal951MIT m0-portal-common-macrosShared procedural macros for M0 portal862MIT m1-ctrlGiant Magellan Telescope primary mirror control system4,497MITScienceSimulation m10-protosM10 Protocol Buffers60,635MIT m10-sdkM10 SDK API59,033MIT m10-sdk-protosM10 SDK Protocol Buffers1,671MIT m10-signingM10 utility library for request signing60,710MIT m14MarsupilamiFourteen pure-Rust implementation2,069MIT OR Apache-2.0 m17appM17 digital radio - high level API, integration with sound cards, serial PTT and TCP/IP1,082MIT m17codec2M17 digital radio - codec2 stream adapters858MIT m17coreM17 digital radio - core protocol definitions, modem, TNC, and KISS1,304MIT m1m1z3A crate for learning purpose. Generating a greeting from me to...2,403MIT m1nd-controlCanonical control-plane contracts for m1nd.18MIT m1nd-coreCore graph engine and reasoning primitives for m1nd.708MITCommand line utilitiesDevelopment tools m1nd-ingestLanguage ingest and graph extraction pipeline for m1nd.572MITCommand line utilitiesDevelopment tools m1nd-mcpLocal MCP runtime for coding agents: structural retrieval, change reasoning, document grounding, and continuity.435MITCommand line utilitiesDevelopment tools m1to_checkerUma biblioteca para validar quem é o maior goleiro da história.29MIT m2Set of Unix tools to work with m2dirs40non-standard m2-ctrlGiant Magellan Telescope secondary mirror control system3,716MITScienceSimulation m2-ctrl_asmGiant Magellan Telescope secondary mirror control system (ASM)2,432MITScienceSimulation m2-ctrl_fsmGiant Magellan Telescope secondary mirror control system (FSM)2,932MITScienceSimulation m24512A no_std driver for the M24512 EEPROM50MIT OR Apache-2.0Embedded developmentHardware support m24c64A rust-embedded driver for the STMicroelectronics M24C64(-D) EEPROM7,942MIT OR Apache-2.0Embedded developmentHardware support m24c64-driverA Rust embedded-hal(-async) driver for the M24C64 I2C EEPROM1,851MITEmbedded developmentHardware support m27q-kvmA KVM control library for the GIGABYTE M27Q monitor.1,676MIT OR Apache-2.0Hardware support m2csmtA solver for systems of non-linear (in)equations3,307MITMathematicsScience m2dirRust implementation of the m2dir specification3,804non-standard m2gSimple cli for translating maven dependencies to gradle2,919MIT OR Apache-2.0 m2hConvert Markdown to HTML with syntax highlighting.951MITCommand line utilitiesText processing m2m-protocolM2M Protocol - Intelligent machine-to-machine LLM communication with learned compression29Apache-2.0CompressionScience m2nLocal-first CLI for creating Markdown notes and publishing to Notion16MITCommand line utilities m2pMarkdown to PDF112MIT m2paPure-Rust M2PA (RFC 4165) codec + link state machine — MTP2 Peer-to-Peer Adaptation over SCTP51MITEncodingNetwork programming m2s2-cliCLI for scaffolding M²S² design system projects988MITCommand line utilitiesDevelopment tools m2s2-geometryGeometric primitives and intersection queries (AABB, OBB, sphere, ray, plane, triangle) built on m2s2-math.46MITGame enginesMathematics m2s2-mathA linear algebra library for game engines and renderers — vectors, matrices, and quaternions with multi-API projection support…81MITGame enginesMathematics m2syncTool for synchronizing IMAP and local m2dir2,734GPL-3.0-or-laterEmail m2ts-packetA Simple MPEG2 Transport Stream (TS) packet decoder.45MITMultimedia::Encoding m3Minecraft Mod Manager - A package manager to install, update and search through mods from modrinth.com1,719GPL-3.0Command line utilities m365A lightweight rust library to receive BLE Xiaomi M365 scooter messages2,982non-standard m365checkAn easy to use, lighweight Microsoft 365 Account checker for use by red teams2,819MITCommand line utilities m3d3D linear algebra1,792MIT/Apache-2.0Mathematics m3hName reservation for m3h — a modern, animated, signal-driven GTK4 Wayland shell framework (native bar, notification center,…18GPL-3.0-or-later m3l-cliM3L CLI tool — parse and validate .m3l.md schema files106MITDevelopment toolsParser implementations m3l-coreM3L schema definition language parser core — lexer, parser, resolver, validator277MITDevelopment toolsParser implementations m3l-lintM3L schema linter — configurable rules for schema quality196MITDevelopment toolsParser implementations m3rsA design system for wasm apps based on rust and material design 31,574LGPL-3.0-or-laterGUIWebAssembly m3rs_coreA design system for wasm apps based on rust and material design 32,532LGPL-3.0-or-laterGUIWebAssembly m3rs_snippetssnippets macro for m3rs1,578LGPL-3.0-or-later m3rs_yewm3rs yew adapter2,071LGPL-3.0-or-laterGUIWebAssembly m3uA crate for reading and writing `.m3u` files - the de facto standard for multimedia playlists.28,849MIT OR Apache-2.0 m3u8m3u8 parsing library3,269 m3u8-dlm3u8 video downloader1,794MITCommand line utilities m3u8-parserA Rust crate for parsing and creating M3U8 files (HLS).6,289MIT m3u8-player-site-kitSmall URL helpers for M3U8 Player, the free M3U8 downloader, converter, and HLS player.21MITWeb programming m3u8-readerThis isn't production ready, but it works for my use case.2,153MIT m3u8-rsA library for parsing m3u8 files (Apple's HTTP Live Streaming (HLS) protocol).1,398,845MIT m3u8_downloaderApplication m3u8_downloader allows to download m3u8 HLS streams by master playlist link.5,743MITAsynchronousCommand line utilities m3u_cli_parserA Rust CLI application for parsing M3U playlists and extracting entry titles and URLs1,558MIT m3u_parserA library for parsing and manipulating M3U files4,900MIT m3u_sorterSorts a .m3u file based on detected Season/Episode data33non-standard m3uaM3UA (MTP3 User Adaptation Layer) codec and SG-side ASP state machine per RFC 466648MITEncodingNetwork programming m3utilsUtilities for handling `m3u` and `m3u8` playlists, with support for extensions in compliance with the RFC 8216 HTTP Live…440MIT OR Apache-2.0Parser implementations m4-arg-parserA basic command line argument parser1,160MIT m4-casefile-rsReceipt schema and casefile types for m4-rs forensic parity courts.804MIT OR Apache-2.0 m4-oracle-rsGNU m4 oracle admission crate: locate, fingerprint, and query a pinned m4 binary.804MIT OR Apache-2.0 m4-rsForensic-parity Rust reimplementation of GNU m4 behavior through oracle courts.871MIT OR Apache-2.0Command line utilitiesParser implementations m4-rs-cliCLI binary for m4-rs, the forensic-parity GNU m4 reimplementation.822MIT OR Apache-2.0 m4-rs-coreCore macro expansion engine for m4-rs: lexer, parser, evaluator, builtins.1,132MIT OR Apache-2.0 m47h4r_rust_minigrepA simple grep tool written in rust by m47h4r1,538GPL-3.0-only m4b-extractorCLI tool to extract chapters, metadata and cover for M4B Audiobook.1,124MIT m4ri-rustM4RI-based boolean linear algebra29,330GPL-2.0+ m4ri-sysBindings to m4ri11,854GPL-2.0+ m4rsTrading indicator library supporting SMA, EMA, BolingerBand, MACD, RSI, Stochastics, Ichimoku, and more14,638MIT OR Apache-2.0Finance m4tx-crate-testA crate that is meant to be a playground for testing things for myself. Does not do anything useful.968MIT OR Apache-2.0 m4x_loggerA simple vibe coded logging utility for Rust applications63MITDevelopment tools m5-sysLow-level bindings for the m5 utility from the gem5 simulator.44GPL-3.0-or-later m5cardputeresp-idf-hal-based board support for the M5Stack Card Computer2,683GPL-3.0+Embedded developmentHardware support m5dial-bspBoard support package for the M5 Dial.3,136non-standard m5stack-coreBoard support crate for M5Stack Fire27 and CoreS3 (ESP32/ESP32-S3)142MIT OR Apache-2.0Embedded developmentHardware support m5unifiedSafe Rust wrapper for M5Unified.237MIT OR Apache-2.0API bindingsEmbedded development m5unified-avatarRust-native expressive avatar renderer for m5unified displays.24MIT OR Apache-2.0Embedded developmentGraphics m5unified-sysRaw Rust bindings for M5Unified via a C ABI shim.296MIT OR Apache-2.0Embedded developmentExternal FFI bindings