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.

legacy-serdeRe-export of serde::*6,682MIT/Apache-2.0 legacy_pcap_fileA crate to read and write legacy Pcap file format2,033MIT OR Apache-2.0EncodingParsing tools legacyguiA simple GUI audio player with strange features.3,873GPL-3.0-or-laterGUI legacylistenA simple CLI audio player with strange features.17,656GPL-3.0-or-laterCommand line utilities legacytranslateInternationalization library of legacylisten.8,151GPL-3.0-or-laterInternationalization (i18n) legal_chesslibrary that generates legal chess moves given a board71,836MIT legaliosSalary, Health, Social, Taxing Properties for years 2011-202210,814non-standard legalisCommand-line interface for Legalis-RS118Apache-2.0 legalis-aeUAE (United Arab Emirates) jurisdiction support for Legalis-RS - Federal Laws, Labor, Commercial Companies, Data Protection, Free…74Apache-2.0Internationalization (i18n)Localization (L10n) legalis-apiREST/GraphQL API server for Legalis-RS248Apache-2.0 legalis-auAustralia jurisdiction support for Legalis-RS (Commonwealth Constitution, ACL, Fair Work, Mabo)90Apache-2.0Internationalization (i18n)Localization (L10n) legalis-auditAudit trail and decision logging for Legalis-RS531Apache-2.0 legalis-brBrazilian law library - CDC, CLT, LGPD, Civil Code, Corporate Law72Apache-2.0Internationalization (i18n)Localization (L10n) legalis-caCanada jurisdiction support for Legalis-RS (Charter of Rights, Federal/Provincial Law, Quebec Civil Law)93Apache-2.0Internationalization (i18n)Localization (L10n) legalis-chainSmart contract export for Legalis-RS254Apache-2.0 legalis-cnChina (中国) jurisdiction support for Legalis-RS - Socialist civil law with Chinese characteristics78Apache-2.0Localization (L10n)Text processing legalis-coreCore types and traits for Legalis-RS legal framework2,621Apache-2.0 legalis-deGerman jurisdiction support for Legalis-RS (BGB, StGB, Grundgesetz)157Apache-2.0Internationalization (i18n)Localization (L10n) legalis-diffStatute diffing and change detection for Legalis-RS252Apache-2.0 legalis-dslDomain Specific Language for legal document parsing658Apache-2.0 legalis-euEuropean Union jurisdiction support for Legalis-RS (GDPR, Consumer Rights, Competition, Treaties)225Apache-2.0Internationalization (i18n)Localization (L10n) legalis-frFrench jurisdiction support for Legalis-RS (Code civil, Code de commerce, Code du travail)129Apache-2.0Internationalization (i18n)Localization (L10n) legalis-i18nInternationalization support for Legalis-RS - multi-language and multi-jurisdiction1,404Apache-2.0 legalis-idIndonesia jurisdiction support for Legalis-RS - Indonesian legal system with Civil Law + Islamic Law hybrid, PDP, Labor,…74Apache-2.0Internationalization (i18n)Localization (L10n) legalis-inIndia jurisdiction support for Legalis-RS - comprehensive modeling of Indian law74Apache-2.0Internationalization (i18n)Localization (L10n) legalis-interopInteroperability layer for legal DSL formats (Catala, Stipula, L4, Akoma Ntoso)526Apache-2.0 legalis-jpJapanese jurisdiction support for Legalis-RS188Apache-2.0Internationalization (i18n)Localization (L10n) legalis-krSouth Korea (대한민국) jurisdiction support for Legalis-RS - Civil law system with Korean characteristics58Apache-2.0Localization (L10n)Text processing legalis-laLao PDR jurisdiction support for Legalis-RS - Civil Code 2020 with comparative law analysis77Apache-2.0Internationalization (i18n)Localization (L10n) legalis-llmLLM integration layer for Legalis-RS464Apache-2.0 legalis-lodLinked Open Data (RDF/TTL) export for Legalis-RS433Apache-2.0 legalis-mxMexican law library - Federal Civil Code, CLT, LFPDPPP, Tax Code, Corporate Law56Apache-2.0Internationalization (i18n)Localization (L10n) legalis-myMalaysia jurisdiction support for Legalis-RS - Malaysian legal system with Common Law + Islamic Law hybrid, PDPA 2010, Companies…56Apache-2.0Internationalization (i18n)Localization (L10n) legalis-portingLegal system porting - transfer laws between jurisdictions with cultural adaptation252Apache-2.0 legalis-registryStatute registry and version management for Legalis-RS361Apache-2.0 legalis-ruRussian Federation jurisdiction support for Legalis-RS53Apache-2.0Internationalization (i18n)Localization (L10n) legalis-saSaudi Arabia jurisdiction support for Legalis-RS - Basic Law, Sharia, Labor, Companies, Tax (VAT/Zakat), Capital Markets, PDPL53Apache-2.0Internationalization (i18n)Localization (L10n) legalis-sgSingapore jurisdiction support for Legalis-RS (Companies Act, Employment Act, PDPA, Consumer Protection)113Apache-2.0Internationalization (i18n)Localization (L10n) legalis-simSimulation engine for Legalis-RS1,165Apache-2.0 legalis-thThailand jurisdiction support for Legalis-RS - Thai legal system with Buddhist Era calendar, FBA, BOI, PDPA, Labor law75Apache-2.0Internationalization (i18n)Localization (L10n) legalis-ukUnited Kingdom jurisdiction support for Legalis-RS (Employment Law, UK GDPR, Consumer Rights, Contract Law, Company Law)108Apache-2.0Internationalization (i18n)Localization (L10n) legalis-usUnited States jurisdiction support for Legalis-RS (Common Law)134Apache-2.0Internationalization (i18n)Localization (L10n) legalis-verifierFormal verification for Legalis-RS legal statutes1,375Apache-2.0 legalis-vizVisualization engine for legal statutes - decision trees, flowcharts, and dependency graphs359Apache-2.0 legalis-vnVietnam jurisdiction support for Legalis-RS - Vietnamese legal system with socialist market economy, Labor Code, Enterprise,…75Apache-2.0Internationalization (i18n)Localization (L10n) legalis-zaSouth Africa jurisdiction support for Legalis-RS - Constitution, Companies Act, POPIA, Labour Relations77Apache-2.0Internationalization (i18n)Localization (L10n) legasea_lineTools for working with lines9,418MITMathematics legateWIP: A library for interacting with the Consul API1,506MIT legatiDelegated AI coding agent orchestration (name reservation)23MITCommand line utilities legatoLegato is a WIP audiograph and DSL for quickly developing audio applications582AGPL-3.0 legatus-coreCore data structures for the legatus cli application1,535MIT legbaA fast multi protocol credential bruteforcer/sprayer/enumerator.19,951GPL-3.0 legdurkeep your legacy durable, detect changes to your directories over time11,148AGPL-3.0Command line utilitiesFilesystem legendStrict, composable saga VM for sequential workflows with compensation59MITAsynchronousConcurrency legend-cliCLI for Legend Prime2,519MIT legend-clientRust client library for the Legend Prime API2,598MIT legend-sagaA Rust library for working with RabbitMQ and asynchronous operations26,255MITAsynchronousNetwork programming legend-signerP256 signing utilities for Legend Prime2,604MIT legendreBlock-structured, deterministic, scheduler-driven PDE simulation framework61MIT OR Apache-2.0ConcurrencyMathematics leggoA SQL query builder for Rust.799MIT OR Apache-2.0 legibleA Rust port of Mozilla's Readability.js for extracting readable content from web pages4,218Apache-2.0Parsing toolsText processing legifrance-clientClient Rust asynchrone non officiel pour l'API Légifrance (piste.gouv.fr), basé sur reqwest16MIT OR Apache-2.0API bindingsAsynchronous legionHigh performance entity component system (ECS) library277,036MITData structuresGame engines legion-coreHigh performance entity component system (ECS) library21,401MITData structuresGame engines legion-errorHigh level intermediate representation for Nyar1,445MPL-2.0 legion-protocol🏛️ Legion Protocol - Secure, IRC-compatible communication protocol with E2E encryption1,002MITAPI bindingsNetwork programming legion-server🏛️ Legion Server - Secure IRC server with Legion Protocol support404MITNetwork programmingWeb programming legion-syncSyncronizes component changes accross the network.1,770MIT legion-systemsHigh performance entity component system (ECS) library20,728MITData structuresGame engines legion-taskFork-join multitasking for Legion ECS1,699MIT legion_codegen#[system] proc macro for the legion library211,690MITData structuresGame engines legion_profLegion Prof: a profiler for Legion5,556Apache-2.0Development tools::Profiling legion_prof_viewerProfiler UI frontend component for Legion Prof58,018Apache-2.0Development tools::Profiling legionnaire⚔️ Legionnaire - Secure IRC client with Legion Protocol support1,040MIT OR Apache-2.0 legiscanA client wrapper for the Legiscan REST API6,478MIT/Apache-2.0 legitadd proof of work to a git commit3,847MIT OR Apache-2.0Command line utilities legnext-rust-sdkOfficial Rust client for the Legnext.ai Midjourney API. Generate images, videos, and more with AI.26MITAPI bindings legoa gui library.4,245MIT lego-coreThis is a reserved placeholder package to mitigate dependency confusion risks.858MIT lego-obs-mcpMCP server for managing configuration files on OBS (Object Storage Service)25MITCommand line utilitiesDevelopment tools lego-powered-upControl Lego PoweredUp hubs and devices5,962MPL-2.0 lego_elevationGet elevation data suitable for building a terrain map out of legos1,113MIT legocThis is a reserved placeholder package to mitigate dependency confusion risks.761MIT legogroth16An implementation of the LegoGroth16, the Legosnark variant of Groth16 zkSNARK proof system23,678MIT/Apache-2.0Cryptography legolasA Microsoft Program Database (PDB) parser2,390Apache-2.0/MIT legomushroom-tunTUN device creation and handling.1,711WTFPL legrapheProgram Dependence Graph extraction, relinking, and traversal for LeIndex152MIT OR Apache-2.0Development tools legroomLegroom — local AI engineering measurement and control tooling. Name reservation ahead of the first public release; see…15MIT OR Apache-2.0 leguichetOne way diodes with antiviral and yara scanning6,011GPL-3.0 leguichet-inOne way diode with antiviral scanning1,806BSD-3-Clause legumePeas in a pod, reinterpreting bits like a god.670MIT OR Apache-2.0 leguntoRun Lua code written for use with the Scribunto MediaWiki extension3,012GPL-2.0-or-later AND MIT lehmerConvert between permutation vectors, Lehmer codes and decimals.14,814MIT leiSupport for creating and validating Legal Entity Identifiers (LEIs)159,282MIT OR Apache-2.0Parsing tools leibnizThe package provides a differentiable vector graphics rasterization loss.49Apache-2.0 OR MITGraphicsScience leicesterA transparently hijack bindings for Rust.2,845MIT/Apache-2.0 leiden-rsHigh-performance Leiden community detection algorithm for graphs in Rust8,558MIT OR Apache-2.0AlgorithmsData structures leiftestlibbinsplitTesting package, please ignore1,523MIT leimA library to handle Legal Entity Identifiers (LEIs)5,546MITFinance leimuReserved for leimu.20MIT or Apache-2.0 leimu-memCustom allocator collections and utilities.75MIT or Apache-2.0Data structuresMemory management leimu-spirvCompact SPIR-V reflection library written in pure-Rust.36MIT or Apache-2.0Parsing toolsRendering::Data formats leindexLeIndex MCP and semantic code search engine for AI tools and large codebases245MIT OR Apache-2.0AlgorithmsData structures leindex-embedONNX embedding worker for LeIndex — runs neural embedding and reranking inference in a separate process119MIT lejitA JIT library written solely in Rust.3,061MPL-2.0 lekickerfouBot Discord pour déconnecter automatiquement les utilisateurs des salons vocaux469MITCommand line utilities leknetmulti-crate bevy networking made easier over bevy_quinnet.1,522MIT leko-wordle-solver-exampleA reference implementation of Wordle solver1,765MIT lekton-syncCLI tool to sync markdown documents to a Lekton instance1,340AGPL-3.0-or-laterCommand line utilitiesDevelopment tools lelcatA faster version of lolcat2,755MIT leleBare-metal machine learning inference library in Rust252MITAlgorithmsCompilers leletgolang like task executor90,877GPL-3.0+AsynchronousConcurrency lelet-deferlelet defer3,788GPL-3.0+ lelet-ioI/O runtime for lelet1,679GPL-3.0+ lelet-simple-locklelet simple lock1,699GPL-3.0+ lelet-task-queuelelet task queue5,427GPL-3.0+ lelet-utilslelet utils25,625GPL-3.0+ lellmRust LLM orchestration framework — LangChain / LangGraph / AutoGen in Rust310MIT lellm-agentAgent Runtime for LeLLM — ToolUseLoop, Executor, Fallback477MIT lellm-coreCore types for LeLLM — Message, ChatRequest, LlmError717MIT lellm-deriveDerive macros for LeLLM — ToolSchema, ParallelSafety255MIT lellm-graphGraph/Node/Edge orchestration layer for LeLLM — with State, Delta, Checkpoint443MIT lellm-macrosDerive macros for LeLLM — ToolSchema, ParallelSafety79MIT lellm-mcpMCP (Model Context Protocol) Client / Server for LeLLM364MIT lellm-providerProvider adapters for LeLLM — OpenAI, Anthropic, and more610MIT lelucetenaMy First Public Project787MIT OR Apache-2.0 lelwelResilient LL(1) parser generator51,622MIT OR Apache-2.0Parsing tools lembaranPagination library.3,571MIT OR Apache-2.0AsynchronousWeb programming::HTTP client lembasLembas is an easy to use plugin manager for the MMORPG Lord of the Rings Online.7,957GPL-3.0-only lemgineAn engine that's pretty good or bad idk7,759MIT lemmaA pure, declarative language for business rules.1,777Apache-2.0 lemma-cliA language that means business.916Apache-2.0 lemma-engineA pure, declarative language for business rules.1,923Apache-2.0Development toolsParser implementations lemma-lspLanguage Server Protocol server for Lemma specifications49Apache-2.0 lemma-openapiOpenAPI 3.1 specification generator for Lemma specs.547Apache-2.0 lemma-rsA modern Lean4 toolchain manager198MIT OR Apache-2.0 lemme-knowSimple program to run commands and get notified when they finish43non-standard lemme_seeport scanner api5,995MIT lemmeknowIdentify any mysterious text or analyze strings from a file47,019MITCommand line utilitiesParsing tools lemmingA patch editor39MITGUIParsing tools lemmy-clientA Rust HTTP client for Lemmy.26,408AGPL-3.0API bindingsWebAssembly lemmy-helpEmmylua parser and transformer16,507MITCommand line utilitiesParsing tools lemmy-scheduled-post-botMake posts to Lemmy based on the next configured post in a TOML file1,885GPL-3.0-or-laterCommand line utilities lemmy_apiA link aggregator for the fediverse72,028AGPL-3.0 lemmy_api_commonA link aggregator for the fediverse198,360AGPL-3.0 lemmy_api_crudA link aggregator for the fediverse72,066AGPL-3.0 lemmy_apubA link aggregator for the fediverse74,813AGPL-3.0 lemmy_apub_libA link aggregator for the fediverse68,451AGPL-3.0 lemmy_apub_lib_deriveA link aggregator for the fediverse78,494AGPL-3.0 lemmy_db_queriesA link aggregator for the fediverse23,354AGPL-3.0 lemmy_db_schemaA link aggregator for the fediverse230,980AGPL-3.0 lemmy_db_schema_fileA link aggregator for the fediverse2,082AGPL-3.0 lemmy_db_viewsA link aggregator for the fediverse207,965AGPL-3.0 lemmy_db_views_actorA link aggregator for the fediverse183,147AGPL-3.0 lemmy_db_views_commentA link aggregator for the fediverse826AGPL-3.0 lemmy_db_views_communityA link aggregator for the fediverse905AGPL-3.0 lemmy_db_views_community_followerA link aggregator for the fediverse736AGPL-3.0 lemmy_db_views_community_follower_approvalA link aggregator for the fediverse153AGPL-3.0 lemmy_db_views_community_moderatorA link aggregator for the fediverse943AGPL-3.0 lemmy_db_views_custom_emojiA link aggregator for the fediverse155AGPL-3.0 lemmy_db_views_local_imageA link aggregator for the fediverse169AGPL-3.0 lemmy_db_views_local_userA link aggregator for the fediverse284AGPL-3.0 lemmy_db_views_local_user_inviteA link aggregator for the fediverse66AGPL-3.0 lemmy_db_views_moderatorA link aggregator for the fediverse182,275AGPL-3.0 lemmy_db_views_modlogA link aggregator for the fediverse177AGPL-3.0 lemmy_db_views_notificationA link aggregator for the fediverse104AGPL-3.0 lemmy_db_views_notification_sqlA link aggregator for the fediverse86AGPL-3.0 lemmy_db_views_personA link aggregator for the fediverse191AGPL-3.0 lemmy_db_views_person_content_combinedA link aggregator for the fediverse105AGPL-3.0 lemmy_db_views_person_liked_combinedA link aggregator for the fediverse107AGPL-3.0 lemmy_db_views_person_saved_combinedA link aggregator for the fediverse91AGPL-3.0 lemmy_db_views_postA link aggregator for the fediverse264AGPL-3.0 lemmy_db_views_post_comment_combinedA link aggregator for the fediverse162AGPL-3.0 lemmy_db_views_private_messageA link aggregator for the fediverse193AGPL-3.0 lemmy_db_views_registration_applicationsA link aggregator for the fediverse123AGPL-3.0 lemmy_db_views_report_combinedA link aggregator for the fediverse121AGPL-3.0 lemmy_db_views_report_combined_sqlA link aggregator for the fediverse90AGPL-3.0 lemmy_db_views_siteA link aggregator for the fediverse105AGPL-3.0 lemmy_db_views_voteA link aggregator for the fediverse156AGPL-3.0 lemmy_diesel_utilsA link aggregator for the fediverse740AGPL-3.0 lemmy_emailA link aggregator for the fediverse751AGPL-3.0 lemmy_routesA link aggregator for the fediverse71,738AGPL-3.0 lemmy_serverA link aggregator for the fediverse56,835AGPL-3.0 lemmy_utilsA link aggregator for the fediverse206,027AGPL-3.0 lemmy_websocketA link aggregator for the fediverse56,406AGPL-3.0 lemmynatorTUI for Lemmy711GPL-3.0-or-later lemnaA Reactive UI framework for Rust9,632MIT lemna-macrosMacros for lemna6,633MIT lemna-winitwinit windowing backend support for lemna3,823MIT lemna-wx-rswx-rs windowing backend support for lemna3,823MIT LemoGUIGUI library dependent on wgpu2,077MIT lemonA reactive UI toolkit for Rust393MIT OR Apache-2.0GUI lemon-agentAgent framework using lemon-graph.2,969MIT OR Apache-2.0 lemon-graphAsync directed computation graphs.3,327MIT OR Apache-2.0 lemon-langThe lemon strategy DSL: parser, AST, and formatter.764MITFinanceParser implementations lemon-llmLLM nodes for lemon-graph.2,988MIT OR Apache-2.0 lemon-mblLeMon - Monster Battle Library is a rust crate which contains game logic for simulated monster battles. The goals are to be…7,090MIT lemon-memoryMemory nodes for lemon-graph.2,950MIT OR Apache-2.0 lemon-mintFamous Lemon Parser Generator implemented in rust as library with API.8,781MITParsing tools lemon-treeFamous Lemon Parser Generator, designed as library that builds your parser transparently during cargo build. Use attributes to…10,924MITParsing tools