All 305,250 crates, alphabetically

letrs-cliCommand-line application to render with FIGlet fonts29MITCommand line utilities letrs-fontsA collection of FIGlet fonts231non-standard letsA simple productivity tool1,782MITCommand line utilities lets-cliA declarative CLI builder — define commands in KDL, get a production-quality CLI instantly79MITCommand line utilitiesDevelopment tools lets-encrypt-warpSimple use of letsencrypt.org with warp16,035Apache-2.0/MIT lets-networklets-network - sdk for lets-network app1,445MIT lets-see-if-this-builds-on-docs-rsA configurable, high-performance routing runtime for Apollo Federation 🚀2,556LicenseRef-ELv2 lets_expectClean tests for Rust12,073MITDevelopment tools::Testing lets_expect_assertionslets_expect assertions. This crate is internal to the lets_expect crate and should not be used directly.12,821MITDevelopment tools::Testing lets_expect_coreCore lets_expect code. This crate is internal to the lets_expect crate and should not be used directly.13,435MITDevelopment tools::Testing lets_expect_macrolets_expect! macro. This crate is internal to the lets_expect crate and should not be used directly.12,318MITDevelopment tools::Testing lets_find_upFind a file or directory by walking up parent directories.516,941MIT lets_learn_rustA short description of my package1,406Apache-2.0 letscodersA simple leetcode solution project,which is using cargo to make rust-analyzer happy.1,773MIT letsencrypt-inwxA small cli utility for automating the letsencrypt dns-01 challenge for domains hosted by inwx13,611MIT letsencrypt-rsDEPRECATED! This crate is merged with acme-client.16,927MIT letsFocusPomodoro Timer application545MITCommand line utilities letslogicA library providing interaction with the Let's Logic API1,624MIT OR Apache-2.0API bindingsAsynchronous letsplayretrogamesA CLI for the letsplayretro.games website5,085MITCommand line utilities lettaA robust Rust client for the Letta REST API716MITAPI bindingsWeb programming::HTTP client letteEmail formatting & creation tool1,558MIT letterDocument layout engine1,972MIT letter-avatarGenerates user avatars using username initials27,043GPL-3.0+ letter-sequenceA method to create sequence displayed as uppercase or lower letters, or digits13,615non-standard letterbombA fork of the classic Wii hacking tool from fail0verflow673MITDevelopment toolsEmbedded development letterbox-langA modular lexer and parser for the Letterbox esoteric programming language.4,486non-standardParser implementations letterboxdLetterboxd API provides access to data on the Letterboxd.com website12,050MIT/Apache-2.0API bindings letterboxedA solver for the New York Times Letter Boxed puzzle - https://www.nytimes.com/puzzles/letter-boxed3,322MIT letterboxed-rsA solver for the puzzle game Letter Boxed by The New York Times2,411MIT lettermanthis is a grounds up super fast and light weight smtp client and server library you can integrate it into a rust app to manage…39,932MITAPI bindingsWeb programming::HTTP client letterman_email_body_parserthis is a tokio based fast and optimized email body parser and dkim validator.9,506GPL-3.0API bindingsAsynchronous lettermintLettermint email service client622MIT OR Apache-2.0API bindingsEmail lettermint-rsLettermint email service client1,452MIT OR Apache-2.0API bindingsEmail lettersBusiness letters1,535BSD-2-Clause lettery-mcpMCP server for Lettery bug tracker — enables Claude Code integration138MITDevelopment tools lettrOfficial Rust SDK for the Lettr Email API.115MITEmailWeb programming lettreEmail client13,523,433MITEmailNetwork programming lettre-catEmail sending built on comp-cat-rs: composable, resource-safe, lazy effects over lettre37MITEmailRust patterns lettre-openssl111Temporary release of lettre that works with openssl 1.1.11,861MITEmail lettre-openssl111_emailTemporary release of lettre_email that works with openssl 1.1.11,833MITEmail lettre_emailEmail builder842,903MITEmail lettuceHealthy lattice consructions in pure Rust.151MIT OR Apache-2.0 lettucesA grid logic crate combining Hexx and custom logic for square and isometric grids to provide a unified grid logic crate.8,248MIT OR Apache-2.0 leuchtkraftA logical programming language1,601MIT leuciteA library for sandboxing and limiting command execution5,782Apache-2.0 levlev25MIT lev-websitesEin einfaches CLI-Tool zum Erstellen von Website-Templates433MIT lev_distanceA copy of Levenshtein distance implementation from Rust Compiler306,491MIT levaRender LaTeX documents using Tera templates2,972AGPL-3.0-onlyCommand line utilities levarint64Little-Endian VARiable-length INTeger codec, compatible with no_std.6,273MIT OR Apache-2.0Embedded developmentNo standard library leveeA library to prevent accidentally exposing sensitive information in complex services1,505Apache-2.0 levelChange levels of screen backlight and audio volume in the CLI3,199MIT level-runtimeConveniences for tokio thread-per-core runtime configuration6,475Apache-2.0Web programming leveldbAn interface for leveldb2,381,449MIT leveldb-corePure-Rust, read-only, panic-free LevelDB record reader for forensics — enumerates every raw SSTable (.ldb) and WAL (.log) record…780Apache-2.0 leveldb-forensicChrome/Chromium Local Storage and Session Storage decoder built on leveldb-core — decodes type-prefixed values (UTF-16-LE /…438Apache-2.0 leveldb-ormAn ORM for leveldb8,256MIT leveldb-orm-deriveAn ORM for leveldb8,732MIT leveldb-orm-traitAn ORM for leveldb1,219MIT leveldb-rsBindings to the LevelDB key/value storage library (https://github.com/google/leveldb)15,496MIT leveldb-rs-bindingAn interface for the LevelDB4,047MIT leveldb-sysFFI bindings to LevelDB2,226,158MIT leveldb4n6leveldb4n6 — read-only LevelDB forensic CLI: dump raw records (with tombstones and sequence numbers) or decoded Chrome…28Apache-2.0 leveldb_minimalAn minimal interface for leveldb4,061MIT leveled-hash-mapA structure to separate values into different levels with keys. Every key-value entry which is not at the top level has a parent…20,333MITData structures levelops-sdkLevelOps Rust SDK — SLI event ingestion19MIT levenMake your own blog!21,444MIT leven-distanceCompute operational differences between two sequences using the Levenshtein algorithm.1,896MITText processing levenberg-marquardtLevenberg-Marquardt algorithm built on top of nalgebra997,813MITAlgorithmsComputer vision levenberg-marquardt-sparseSparse Levenberg-Marquardt algorithm using PCG-based normal equations, built on nalgebra5,624MITAlgorithmsComputer vision levenshteinLevenshtein algorithm25,183,716MIT levenshtein-diffGeneric implementation of Levenshtein's algorithm that also allows you to generate the edits required to convert a source…36,782MITAlgorithms levenshtein-distanceLevenshtein distance algorithm1,254MIT levenshtein-rsLevenshtein distance algorithm2,532MIT levenshtein_automataCreates Levenshtein Automata in an efficient manner.19,042,679MITText processing levenshtein_liteNo-frills implementation of a Levenshtein Automata and the Levenshtein Distance function.2,608MITText processing levensthein-rsstring matching stuff1,301MIT leverPillars for Transactional Systems and Data Grids142,484Apache-2.0/MITAsynchronousConcurrency leviGit-aware, agent-first, distributed issue tracker198AGPL-3.0-or-later levi-coreEntities, status resolution, and ranking for levi, the git-aware issue tracker290AGPL-3.0-or-later leviathanleviathan - Terminal user interface to Kraken exchange1,605MIT leviathan-commonShared types and constants for Leviathan Windows kernel driver - EDR/XDR framework195MIT OR Apache-2.0Development toolsOperating systems::Windows APIs leviathan-driverWindows kernel-mode EDR/XDR driver framework in Rust - callbacks, filters, detection, forensics68MIT OR Apache-2.0Development toolsOperating systems::Windows APIs levilaminaWrite LeviLamina (Minecraft Bedrock Dedicated Server) mods in safe Rust. Targets BDS 1.26.20 / LeviLamina 26.20 (ABI v5).125Apache-2.0API bindingsGame development levilamina-sysRaw FFI declarations for the levilamina-rs ABI (src/LeviRsAbi.h).159Apache-2.0External FFI bindingsGame development levinLibrary for the Levin p2p protocol1,531non-standard leviso-cheat-guardRuntime macros for cheat-aware error handling (bail, ensure, check)85MITDevelopment tools::Testing leviso-cheat-testProc-macro for cheat-aware test documentation181MITDevelopment tools::Testing leviso-depsExternal dependency resolution for LevitateOS build - handles Linux kernel source, Rocky ISO, and installation tools63MITDevelopment tools::Build UtilsFilesystem leviso-elfELF binary analysis and library dependency copying utilities using readelf132MIT OR Apache-2.0Development tools::Build UtilsFilesystem levitas_clientlevitas's client8,051GPL-3.0-only levitateJust works solution to numbers, mainly aimed at floats and mathematical use cases.5,630MIT levitating-fuserMy fork of Filesystem in Userspace (FUSE) for Rust1,285MITAPI bindingsExternal FFI bindings leviticusLeviticus is a suite of tools which help developers build robust and maintainable applications across platforms, languages,…17MIT OR Apache-2.0Development toolsFilesystem levorlevor — reserved namespace. Placeholder crate; full release coming soon.18MIT OR Apache-2.0 levyLossless markdown parser and emitter1,601MIT levy-cliSimple CLI to Basic Fitur1,947MITCommand line utilities lew-timoA lightweight, high-performance runtime tracking and calendar library19MIT lewcolourFast, zero-allocation terminal colour crate for LewRep2 and friends.36MIT lewnAn implementation of Luhn's checksum algorithm using Rust2,417CC0-1.0 lewpSay goodbye to the web template hell. Generate your HTML5 website technically optimized and always valid. In your Rust source.4,191MIT OR Apache-2.0Web programming lewp-cssDomain model for CSS Stylesheets. Allowing effective minification and transformations such as autoprefixing and removal by other…3,817MPL-2.0 lewp-htmlStraightforward HTML document building. Write your HTML with full algorithmic power instead of creating messy and confusing…3,656MIT OR Apache-2.0Web programming lewp-selectorsCSS Selectors matching for Rust - version used by lewp4,484MPL-2.0 lewtonPure Rust vorbis decoder7,545,328MIT OR Apache-2.0CompressionMultimedia::Audio lexThis library aids in parsing programming languages.12,258MIT lex-analysisSemantic analysis for the lex format1,565MITDevelopment toolsText processing lex-apiHTTP/JSON + MCP server surface for the Lex toolchain.435EUPL-1.2CompilersDevelopment tools lex-astCanonical AST + content-addressed identity for Lex programs.1,408EUPL-1.2CompilersDevelopment tools lex-automata-cliLexical analyzer generator framework — Clap-based CLI front for lex-automata-core.14MIT lex-automata-coreLexical analyzer generator framework — pure library (regex parser, NFA/DFA, Aho/minimization/union/determinization, lex driver).19MIT lex-babelFormat conversion library for the lex format2,061MITText processing lex-bytecodeBytecode compiler + VM for Lex.1,109EUPL-1.2CompilersDevelopment tools lex-configShared configuration loading for the lex toolchain1,421MITConfiguration lex-coreParser library for the lex format2,558MITParsing toolsText processing lex-engineBoot helper + extension setup glue for lex hosts (lexd CLI, lexd-lsp). The future home of Engine::builder() for embedders.32MITDevelopment tools lex-extensionPublic surface for Lex extensions: handler trait, wire types, schema types1,067MITText processing lex-extension-hostRuntime for the Lex extension system: registry, transports, trust gate, sandboxing1,005MITText processing lex-fmtCanonical Rust embedder API for the lex document format. Hosts Engine::builder() plus the boot helpers shared by lexd and…491MITDevelopment tools lex-just-parselex-just-parse is a simple and easy-to-use lexing and parsing crate for Rust. It provides a fast, stream-based lexical analyzer…162non-standard lex-libContains simple but usefull stuff for Rust development.6,265MITDevelopment tools lex-lspLanguage Server Protocol implementation for the lex format308MITDevelopment toolsText editors lex-lsp-coreSync language-server core for the lex format. Powers both the stdio LSP server (lexd-lsp) and the WASM bindings (lex-wasm).499MITDevelopment toolsText editors lex-map_editor_stdstandard types and parser for lex-map_editor3,931MITGame developmentParsing tools lex-runtimeEffect handler runtime + capability policy for Lex.754EUPL-1.2CompilersDevelopment tools lex-storeContent-addressed on-disk store for Lex stages, branches, and traces.595EUPL-1.2CompilersDevelopment tools lex-syntaxTokenizer + parser for the Lex programming language.1,510EUPL-1.2CompilersDevelopment tools lex-traceRun-time trace tree + replay for Lex programs.706EUPL-1.2CompilersDevelopment tools lex-typesType system + effect inference for Lex.1,296EUPL-1.2CompilersDevelopment tools lex-vcsAgent-native version control: typed op log + attestation graph.696EUPL-1.2CompilersDevelopment tools lex_deriveSome derive macros for creating a lexer1,483GPL-3.0 lex_luaA lexer for Lua17,443MIT lex_sleutherSleuth out script languages by lexing.683MIT lex_sleuther_multiplexera multiplexer over multiple lexers878MIT lexaLexa CLI: hybrid local search (BM25 + binary-quantized Matryoshka KNN + cross-encoder rerank) over arbitrary file trees. `lexa…32MIT OR Apache-2.0Command line utilitiesText processing lexa-coreLocal-first hybrid retrieval engine: BM25 + binary-quantized Matryoshka KNN + cross-encoder rerank, in one Rust crate. Pairs with…145MIT OR Apache-2.0Command line utilitiesDatabase interfaces lexa-databaseAccès aux bases de données via SQLx6,746non-standard lexa-envRécupère tes variables d'environnement simplement.6,033MPL-2.0 lexa-frameworkFramework web backend personnel par dessus Axum.15,562MPL-2.0 lexa-framework-macroFramework web backend personnel par dessus Axum.4,363MPL-2.0 lexa-fsUtilitaires liés au fs pour les projets.6,841MPL-2.0 lexa-loggerUn logger parmi tant d'autres.10,399MPL-2.0 lexa-mcprmcp stdio MCP server for the Lexa hybrid retrieval engine. Exposes `search_files`, `index_path`, `list_indexed_paths`,…31MIT OR Apache-2.0Command line utilitiesText processing lexa-obsidianLocal-first hybrid retrieval over an Obsidian vault. Ships an MCP stdio server (Codex / Claude Desktop / Cursor) and a CLI for…41MIT OR Apache-2.0Command line utilitiesText processing lexa-promptUtilitaires lié aux entrées utilisateur, IO.8,612MPL-2.0 lexa-prompt-macroUtilitaires lié aux entrées utilisateur, IO.4,233MPL-2.0 lexa-synUtilitaires pour la crate syn (proc-macro).3,833MPL-2.0 lexa-wildcard-matchingCorrespondance de caractères génériques sur les chaînes de caractères.2,066MPL-2.0 lexactivatorLexActivator SDK for Rust33,953non-standard lexargMinimal, API stable CLI parser30,810MIT OR Apache-2.0Command-line interface lexarg-errorArgument error type for use with lexarg30,988MIT OR Apache-2.0Command-line interface lexarg-parserMinimal, API stable CLI parser31,035MIT OR Apache-2.0Command-line interface lexarielLexical analyzer for Asmodeus language1,328MITCompilersParsing tools lexdCommand-line interface for the lex format627MITCommand line utilities lexd-lspLanguage Server Protocol implementation for the lex format599MITDevelopment toolsText editors lexeLexe Rust SDK444MIT lexe-apiLexe API types, definitions, client/server utils, and TLS config779MIT lexe-api-coreCore Lexe API types and traits947MIT lexe-byte-arrayByte array newtype trait1,287MIT lexe-commonLexe common types, traits, and utilities1,070MIT lexe-cryptoLexe cryptography library (ring wrapper)1,135MIT lexe-enclaveLexe Intel SGX enclave types and platform functions1,131MIT lexe-hexOpinionated hex encode/decode utilities1,393MIT lexe-loggerLexe SDK tracing logger configuration587MIT lexe-node-clientClient types used to connect to your Lexe Node524MIT lexe-payment-uriParse and encode Bitcoin ecosystem payment URIs and strings530MIT lexe-payment-uri-coreI/O-free Bitcoin payment URI parsing and encoding617MIT lexe-serdeLexe SDK serde derive helpers1,245MIT lexe-sha256Opinionated sha256 hashing via ring1,238MIT lexe-stdLexe extended Rust std1,290MIT lexe-tlsLexe TLS configs, certs, and utilities843MIT lexe-tls-coreLexe rustls extension crate941MIT lexe-tokioLexe tokio extension crate849MIT lexepubHigh-performance streaming EPUB parser and extractor for Rust, WASM, and C/C++.436Apache-2.0Parser implementationsText processing lexerplugin based lexical reader34,197MIT/Apache-2.0Parsing toolsText processing lexer-generatorLexer derived from Regex patterns with user customizeable tokens6,483MIT lexer-langScanner/tokenizer core for hand-written and generated lexers.21Apache-2.0 OR MITDevelopment toolsParsing tools lexer-rsLexical anaylzer framework for context-free text parsing into tokens5,202MIT OR Apache-2.0Parsing tools lexersTools for tokenizing and scanning60,630MITParsing toolsText processing lexerusSimple annotated lexer8,520non-standardCompilersParser implementations lexerus_deriveSimple annotated lexer2,121non-standardCompilersParser implementations lexgenA fully-featured lexer generator implemented as a proc macro232,532MITCompilersDevelopment tools lexgen_utilRuntime library for lexers generated by lexgen219,143MIT lexiRenders a YAML lexicon file into dictionary files.5,605MIT lexi-gramLexi and Gram lexer/parser generator top-level library that includes the lexicon/grammar parsers266MIT OR Apache-2.0Parsing tools lexi-maticA Lexer Library2,666MIT lexi-matic-deriveDerive macro for lexi-matic2,967MIT lexi-rsa client for lexidb - an in memory data structure database12,068MIT lexicalLexical, to- and from-string conversion routines.31,678,892MIT/Apache-2.0EncodingNo standard library lexical-coreLexical, to- and from-string conversion routines.134,801,092MIT/Apache-2.0EncodingNo standard library lexical-lifetimeExtend lifetimes to the end of the lexical scope1,638MIT lexical-parse-floatEfficient parsing of floats from strings.108,556,787MIT/Apache-2.0No standard libraryParsing tools lexical-parse-integerEfficient parsing of integers from strings.108,570,279MIT/Apache-2.0No standard libraryParsing tools lexical-sortSort Unicode strings lexically4,939,588MIT OR Apache-2.0Internationalization (i18n)Text processing lexical-utilShared utilities for lexical creates.108,623,472MIT/Apache-2.0EncodingNo standard library lexical-write-floatEfficient formatting of floats to strings.96,533,109MIT/Apache-2.0EncodingNo standard library lexical-write-integerEfficient formatting of integers to strings.96,461,948MIT/Apache-2.0EncodingNo standard library lexical_boolparse arbitrary strings as bools9,2450BSD lexical_scannerA simple lexer which creates over 115+ various tokens based on the rust programming language. This complete Lexer/Lexical Scanner…28,971MIT lexicleanLexically clean paths1,390,885CC0-1.0