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.

jnix-macrosCompanion crate to jnix that provides proc-macros for interfacing JNI with Rust258,123Apache-2.0 OR MITExternal FFI bindings jnkJenna's Number Kruncher: a library for parsing math expressions.4,206MIT jns42-coreCore of jns424,679ISC jns42-libSupport for code generated by JsonSchema42942ISC jntA utility crate full of just neat things2,271MIT jntajisA Rust port of jntajis-python providing character transliteration functionality for Japanese text processing132BSD-3-ClauseInternationalization (i18n)Text processing jnunes-ds_artA library for modeling artistic concepts.33MIT jnvJSON navigator and interactive filter leveraging jq24,376MIT joJo is a Rust macro for ensuring non-parallel execution of functions.1,946MIT OR Apache-2.0 joa_lampela_todo_cliA minimal TODO CLI app I made while learning Rust. Not expecting it to be useful.641non-standardCommand line utilities joaatJenkins one-at-a-time hash for Rust2,895MIT joafJack of all Files17MIT OR Apache-2.0 joao-paulo-paritylib1,235Apache-2.0 joatJack of all trades - CLI tools for REST APIs11,464MITCommand line utilities joat-git-urlGit URL parser6,865MITDevelopment tools joat-loggerLogger and progress indicator12,357MITDevelopment tools joat-pathAbsolute paths5,698MITFilesystem joat-repoMetadirectory repositories19,664MITFilesystem joatmonJack of All Trades Master of None34,621MITEncodingFilesystem jobAsync / distributed job runner36,413Apache-2.0Database interfaces job-bookUse a yaml file to stitch scripts and commands together.1,654Apache-2.0Command line utilities job-dispatcherRust crate to execute jobs in an async way6,434MIT job-formatter-coreIndustry-agnostic job-feed formatting engine: company CSV/Excel → normalized JSONL → per-media rows. Parallel, order-preserving,…28MIT OR Apache-2.0EncodingParser implementations job-o-holicJob scheduling library1,5720BSDConcurrency job-orchestratorAsynchronous job orchestrator for managing and routing payloads between services and computing resources with quota tracking326MITAsynchronousScience job-poolThread Pool14,192GPL-3.0-only job-runnerSimple background job runner with configurable delays between job runs4,096CC0-1.0 job-securityUniversal job control10,105MPL-2.0Command line utilities job-security-clientUniversal job control - client library5,971MPL-2.0Command line utilities job-security-protocolUniversal job control - server-client protocol4,500MIT OR Apache-2.0Command line utilities job-security-serverUniversal job control - server library10,690MPL-2.0Command line utilities job_abstrsAbstractions for event-driven jobs.1,713MIT job_configConfiguration parser for Silva workflow jobs with TOML support80MIT job_declaration_sv2SV2 job declaration protocol types46,063MIT OR Apache-2.0 job_queueA simple, efficient Rust library for handling asynchronous job processing and task queuing.25,886MIT OR Apache-2.0 job_schedulerA simple cron-like job scheduling library for Rust.186,329MIT/Apache-2.0Date and time job_scheduler_ngA simple cron-like job scheduling library for Rust (Updated since 2022).308,747MIT OR Apache-2.0Date and time jobberMinimalistic console work time tracker27,808MITCommand line utilitiesFinance jobber3Command line tool for tracking work time1,190MIT jobbyJob queue for rocket applications1,935MIT OR Apache-2.0Web programming jobby_deriveJob queue for rocket applications2,515MIT OR Apache-2.0Web programming jobcan-cliA command line tool to operate Jobcan.2,907MIT jobcelisOfficial Rust SDK for the Jobcelis Event Infrastructure Platform61BUSL-1.1API bindingsWeb programming::HTTP client jobclockA simple time tracking tool9,233MIT jobdA terminal-based job application tracker28MITCommand line utilities jobfileBlazingly-fast job runner40AGPL-3.0-or-later jobflowExecutes jobs in order1,945MIT OR Apache-2.0Concurrency jobfuscatorJObfuscator is a source code obfuscator for the Java programming language. Obfuscate and protect your Java source code and…39Apache-2.0API bindings jobicoletVery experimental and rudimentary WASM SDK for Jobico4,089non-standard joblTOML-based resume format with strict validation378MITCommand line utilitiesParsing tools jobpoolA simple and lightweight threadpool implementation44,307MITConcurrency jobqA Background Job Queue using Tokio, PostgreSQL & ZeroMQ1,770MIT/Apache-2.0 jobrogcommand line job clock27,122GPL-2.0Command line utilities jobsbuild system2,008MIT jobs-coreReusable long-running job state, cancellation, progress, logs, and artifact primitives.22MIT OR Apache-2.0AlgorithmsComputer vision jobserverAn implementation of the GNU Make jobserver for Rust.461,463,323MIT OR Apache-2.0 jobshellA CLI tool for job searching and scraping job boards13,299MITCommand line utilities jobslotAn implementation of the GNU make jobserver for Rust2,765,410MIT/Apache-2.0 jobstealA work-stealing fork-join threadpool written in Rust.64,909MIT/Apache-2.0 jobsucheRust interface for the Bundesagentur für Arbeit Jobsuche API1,046MIT jobsuche-mcp-serverAI-friendly job search integration server using the German Federal Employment Agency API582MIT jobsysLockless Work Stealing Job System4,320MITConcurrency jocalsendA TUI for LocalSend3,533non-standard jockerRun your monorepo binaries locally with ease !4,229MIT jocker-libRun your monorepo binaries locally with ease !1,038MIT jockeyCustom command-line parsers that practically write themselves8,883MIT jockey_deriveImplementation of #[derive(Arguments)] for the jockey crate8,700MIT jod-threadstd::thread which joins on drop by default.8,921,058MIT OR Apache-2.0ConcurrencyRust patterns joda_rsA java time / joda like wrapper around the time crate1,715Apache-2.0 joeWho is Joe?5,195GPL-3.0-or-later joe-dbEmbedded, in memory, immutable, key-value database.1,607MIT OR Apache-2.0 joe_usernameA Joe username generator1,820MIT joecryptA cryptography crate that help newbie learn cryptography1,513Apache-2.0 joerlAn Erlang-inspired actor model library for Rust325MITAsynchronousConcurrency joerl_macroProcedural macros for joerl - Erlang-inspired actor model library431MIT joestarWry-based simple HTML5-based native UI platform for Rust3,783Apache-2.0GUI joestar-htmlWry-based simple HTML5-based native UI platform for Rust - HTML Goodies4,720Apache-2.0GUI joffStore JSON API responses in a key-value store and serve them locally.1,660Apache-2.0 jogA task runner with no string substitution.6,560MIT joggerA TUI time logging tool for jira9,707MIT johnFetch all pages from the sitemap.2,776MIT john-de-silencioPersonal website of Nicholas R. Smith (@johnDeSilencio)1,477MITCommand line utilitiesWebAssembly johnbiz_hello_worldA simple crate that greets people509MIT johnny15243_artA library for modeling artistic concepts.1,221MIT johnnydecimal-rsAn assistant for users of the Johnny Decimal file organization system555AGPL-3.0-or-later johnrsSimple library to parse the JOHN notation format1,567MIT johnstonA utility for generatating JI pitch lattices10,760MIT johnston-cliA utility for exploring just intonation.1,607non-standard joinMacros which provide useful shortcut combinators, combine sync/async chains, support single and multi thread (sync/async) step…89,143MITAsynchronousConcurrency join-aiA tool to traverse files in a folder and concatenate them into a single text file for GenAI models.1,386MIT join-lazy-fmtLazy `separator.join(iterable)` method and `lazy_format!` for Rust602,548MITRust patterns join-stringJoin the elements of iterators as a string, interspersing a separator between all elements.10,694MITValue formatting join_compile_commands_jsonA simple utility to join multiple compile_commands.json files into one1,668MITCommand line utilities join_exportExports of the `join!`, `join_async!`, `join_spawn!`, `join_async_spawn!`, `async_spawn!` macros which are reexported by `join`…43,585MIT join_implImplementation of the `join!` macro.88,169MIT join_me_maybean async `join!` macro with `select!`-like features216Apache-2.0 OR MIT join_me_maybe_implinternal proc macro crate for `join_me_maybe`363Apache-2.0 OR MIT join_strProc macro to do simple string interpolation as an array join25,829GPL-3.0-or-later join_to_stringJoin a list of items to string/buffer.193,655MIT OR Apache-2.0Rust patterns joinableTraits for doing SQL-like joining iterables of values.6,194MIT OR Apache-2.0 joindoeUtility to deidentify sensitive data1,585Apache-2.0 joineryA small crate for generically joining iterators with a separator13,243,043MITNo standard libraryRust patterns joinery_macrosMacros used internally joinery.1,227Apache-2.0 joinkitIterator adaptors for efficient SQL-like joins11,918MIT joinlinesCLI util for joining lines of a text file7,754MIT/Apache-2.0 joinstrRust implementation of the joinstr protocol927MIT jointhedotsA simple git-based dotfile manager written entirely in Rust!22,740MIT joirajoira placeholder package377MITCommand line utilities jojoJoJo's Bizarre Programming Adventure.20,434GPL-3.0 jojo-coreThe core of JoJo's Bizarre Programming Adventure.1,518GPL-3.0 jojo-webJoJo's Bizarre Programming Adventure -- On The Web!.1,545GPL-3.0 jojodiffRust library for handling JojoDiff files, a diff utility for binary files.9,395MITCompressionFilesystem jojorssProgram to notify you when there's a new JoJo chapter of out5,508MIT OR Apache-2.0Command line utilities jokeTiny Javascript engine, does not support Typescript(yet).1,756MIT joke-generatora command-line application that allows users to generate jokes from different categories.2,731MIT OR Apache-2.0Command line utilities jokeapi_rsRust wrapper for https://v2.jokeapi.dev/7,059Apache-2.0 jokecliA program that handles and types for you the joker API and its joke (Terminal app)902MIT jokerA JavaScript tokenizer.13,604MIT joker_calculusAn implementation of Joker Calculus in Rust16,405MIT OR Apache-2.0 joker_queryThe joker_query is most sugared query builder of Rust3,999Apache-2.0 joker_tutorialA Rust tutorials1,609MIT jokersAPI wrapper for https://v2.jokeapi.dev/1,862MIT jokesa simple program that tells jokes1,681AGPL-3.0-or-later jokes-rustA tool to that tells random jokes2,237MIT OR Apache-2.0Command line utilities jokestodona mastodon bot that makes people laugh1,681AGPL-3.0-or-later joketellerSimple API client for sv443's jokeapi4,081MIT jokeyrhyme-dotfilesread my dotfiles repository and do stuff82,052MIT jokoapiA wrapper of Guild Wars 2 Api3,176MIT jokolayAn Overlay for Guild Wars 2 in rust11,723MIT jokolinkA crate to copy MumbleLink of Guild Wars 2 by running in wine and copying it to linux filesystem for native access by linux apps43,525MIT jokowayJokoway is a high-performance API Gateway built on Pingora (Rust) with dead-simple YAML configs.143MIT jokoway-acmeACME (Let's Encrypt) extension for Jokoway207MIT jokoway-compressCompression extension for Jokoway API Gateway204MIT jokoway-coreCore traits and types for Jokoway API Gateway439MIT jokoway-forwardedForwarded middleware for Jokoway87MIT jokoway-rulesRouting rules logic for Jokoway244MIT jokoway-transformerRequest and response transformer library for Jokoway API Gateway156MIT jokycryptA small TCP relay that scrambles traffic with a deliberately non-cryptographic, password-seeded stream cipher. A teaching toy,…157MITCommand line utilitiesNetwork programming jolijo(e's c)li1,776MIT jollya bookmark manager meets an application launcher, developed with iced5,264MIT OR Apache-2.0 jolokiaSimple, strong encryption.4,530MIT OR Apache-2.0Command line utilities jolsejolse is a command-line interface (CLI) tool written in Rust for encoding and decoding files and directories using base64…2,598MIT joltJolt zkVM1,667MIT jolt-physicsWrapper for the Jolt physics library..7,528MIT jolt-platformCross-platform battery and power monitoring for jolt910MIT jolt-protocolProtocol types for jolt daemon IPC916MITData structures jolt-sysBuild the Jolt physics library.4,849MIT jolt-themeTheme system for terminal TUI applications with iTerm2 import support906MIT jolt-tuiA beautiful TUI for monitoring battery and energy usage752MITCommand line utilities jolt_coreCore trait and types for the Jolt JavaScript runtime4,600MIT jolt_jscJavaScriptCore backend for the Jolt JavaScript runtime589MIT jolt_quickjsQuickJS backend for the Jolt JavaScript runtime4,431MIT jolt_rsRust-powered JavaScript runtime for Flutter — JSC on Apple, QuickJS elsewhere, host JS on web4,318MIT jolt_webWASM/browser backend for the Jolt JavaScript runtime636MIT joltc-sysUnsafe bindings to Jolt Physics using JoltC8,558MIT OR Apache-2.0 jolteonThe best music player.2,182non-standardMultimedia::Audio jomA crate to convert JSON data to markdown by replacing placeholders with JSON values.3,862MIT jominiLow level, performance oriented parser for save and game files from EU4, CK3, HOI4, Vic3, Imperator, and other PDS titles185,564MITParsing tools jomini_deriveSerde macros implementation of `#[derive(JominiDeserialize)]`103,428MIT jonNatural language interface for Joy and Jot - CLI, TUI, and desktop app74MIT jon-cliNatural language interface for Joy and Jot - CLI for the Joyint ecosystem122MIT jonahA simple Rust library crate579MITDevelopment tools jonases-tracing-utilAbstractions over tracing and tracing_subscriber Jonas uses throughout his (mostly actix-web) projects5,255MIT jonathanve_guessing_gameA fun game where you guess the number the computer has chosen.1,507MIT OR Apache-2.0 jonesCLI project for searching and inspecting Python classes6,748MITCommand line utilities jonesyJonesy is here to help you not panic!1,465Apache-2.0 jongriichi mahjong19non-standard jonhermansen-resumeMy personal resume generator1,109non-standardCommand line utilities jonlangbasic scripting language made to learn rust1,246MIT OR Apache-2.0Compilers jonmoergonomic Bevy-native reactivity powered by FRP signals6,099MIT OR Apache-2.0AsynchronousGame development jonoPriority Queue on Redis6,913MIT jono_consumeWorker interface for processing jobs on Jono queues8,230MIT jono_coreShared types and utilities for Jono queue libraries8,907MIT jono_harvestPost-process interface for completed jobs to Jono queues2,656MIT jono_produceDispatch interface for submitting jobs to Jono queues7,720MIT jonsonPlease add to and return806BSD-3-Clause jonswapCLI for JONSWAP wave model.6,751GPL-2.0-only jootoobA desktop Invidious client that isn't a webapp6,323GPL-3.0-or-later jopcallDynamically executed Windows Syscalls via JOP/ROP472MIT jopcall_proc_macroMacro in support of jopcall to perform compile time API hashing859MIT jopemachine-raftThe rust language implementation of Raft algorithm.18,970Apache-2.0AlgorithmsDatabase implementations joplin-readerLibrary which reads a Joplin data folder and provides an interface to the items.9,416MIT OR Apache-2.0 jopsQuery and operate with serde_json Values4,099MIT OR Apache-2.0 joqlRust implementation for JoQL Support (Json Oriented Query Language)1,609MIT OR Apache-2.0Data structures jordGeographical Position Calculations (Ellipsoidal and Spherical models)21,501MITScience::Geospatial jordan4ibanez_perlin_rustA simple perlin noise implementation in Rust1,702MIT jordinA crate providing access to the name "jordin"1,633MIT jormA lightweight DAG execution engine with natural language processing246MITCommand line utilitiesDevelopment tools jorttAsync Rust SDK for the Jortt API with typed modules, hybrid OAuth helpers, and raw operation escape hatch23MITAPI bindingsAuthentication josaKorean language josa selector4,653MITLocalization (L10n)Text processing joseA JSON Object Signing and Encryption implementation48,819MIT OR Apache-2.0AuthenticationCryptography jose-b64Base64 utilities for use in JOSE crates2,813,371Apache-2.0 OR MITCryptographyData structures jose-jwaPure Rust implementation of the JSON Web Algorithm (JWA) component of the Javascript Object Signing and Encryption (JOSE)…2,778,926Apache-2.0 OR MITCryptographyData structures jose-jwkPure Rust implementation of the JSON Web Key (JWK) component of the Javascript Object Signing and Encryption (JOSE) specification…2,761,320Apache-2.0 OR MITCryptographyData structures jose-jwsPure Rust implementation of the JSON Web Signature (JWS) component of the Javascript Object Signing and Encryption (JOSE)…39,444Apache-2.0 OR MITCryptographyData structures jose-rsPure-Rust JOSE library (JWS, JWE, JWK, JWT) with software and HSM key support540BSD-2-ClauseAuthenticationCryptography jose_functionsBiblioteca de testes1,524MIT josekiGo/Baduk engine.2,149MIT josekitJOSE (Javascript Object Signing and Encryption) library for Rust.3,468,654MIT OR Apache-2.0Authentication josephineJosephine: using JavaScript to safely manage the lifetimes of Rust data3,592MPL-2.0