All 305,250 crates, alphabetically

josephine_deriveThe derive macros for josephine3,160MPL-2.0 joshGIT virtualization proxy5,874non-standard josh-changesJosh change tracking192non-standard josh-cliJosh CLI88non-standard josh-command-middlewareCommand middleware for josh122non-standard josh-composeJosh container workspace runner54non-standard josh-coreGIT virtualization proxy372non-standard josh-filterFilter type and builder for josh461non-standard josh-github-authGitHub authentication for Josh237non-standard josh-github-changesGitHub change tracking for Josh133non-standard josh-github-codegen-graphqlGitHub GraphQL codegen for Josh217non-standard josh-github-graphqlGitHub GraphQL client for Josh181non-standard josh-github-keyringCredential storage for Josh GitHub integration53non-standard josh-github-webhooksGitHub webhook handling for Josh204non-standard josh-graphqlGraphQL support for Josh189non-standard josh-linkJosh link resolution133non-standard josh-proxyGIT virtualization proxy23non-standard josh-rpcRPC primitives for the josh git proxy84non-standard josh-ssh-shellSSH shell integration for the josh git proxy22non-standard josh-starlarkStarlark support for creating josh filters415non-standard josh-templatesJosh templating support149non-standard josh-test-webhook-serviceTest webhook service for josh integration testing22non-standard josh_hates_closuresA useless, anti-closure expression macro3,073MIT joshua912815-rcore-tutorial-t2l9-smpTask 2 Lab 9: multicore-aware tutorial kernels for chapters 1 and 2 in one publishable crate.54GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-ch1-tangramA self-contained crates.io package for the ch1 tangram game experiment of tg-rcore-tutorial.26GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-ch2-moving-tangramA self-contained crates.io package for the ch2 moving tangram game experiment of tg-rcore-tutorial.42GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-ch3-basicStandalone reproducible crate for the Chapter 3 basic lab of tg-rcore-tutorial.23GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-ch4-basicStandalone reproducible crate for the Chapter 4 basic lab of tg-rcore-tutorial.23GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-ch8-basicAI4OSE publishable Chapter 8 basic experiment crate with threads, synchronization primitives, and deadlock detection.76GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-t2l21T2L21 observability-focused tg-rCore Chapter 3 experiment crate.58GPL-3.0Embedded developmentNo standard library joshua912815-tg-rcore-tutorial-t2l8T2L8 engineering-quality rCore tutorial bundle with unified tracing, workloads, regression scripts, and learning docs24GPL-3.0Embedded developmentNo standard library joshutoTerminal file manager inspired by ranger15,357LGPL-3.0Command-line interfaceCommand line utilities josie-coreHigh-performance core runtime for JOSIE (JSON Omni Safe Interactive Expressions), with deterministic tree-based pipeline…43MITCompilersDevelopment tools jossJSON Operating System Schema4,757MIT jotQuickly take down notes and reminders2,198MIT jot-cliPersonal task manager - Git-native, CLI-first, CalDAV-ready165MIT jot-coreCore library for Jot personal task manager - extends joy-core with recurrence246MIT jot-tuiA terminal-based note taking tool with vim-like keybindings46MIT OR Apache-2.0Command line utilities jot_noteJot Note Taking CLI936MIT jotaijotai1,582MIT jotai-transportWebSocket server for synchronizing object state with jotai-transport (Rust).23Apache-2.0Network programmingWeb programming::WebSocket jotarominizip-ng wrapper1,627Zlib jotaro-sysUnsafe bindings to minizip-ng6,603Zlib jotdownA parser for the Djot markup language183,918MITParser implementations jotdown-rsA minimalist, command-line jotting utility that's fast, private, and git-friendly.21MITCommand line utilitiesText processing jotitdownA distraction-free writing app82MITText editors joto_constantsConstants for interoperation between US Customary and SI units.12,038ISC OR Apache-2.0 OR MIT joto_formatFast, const-safe formatter for SI, US Customary, and typesetting dimensions with exactness tracking.2,562ISC OR Apache-2.0 OR MITNo standard libraryNo standard library::No dynamic allocation joto_parseFast, const-safe parser for SI, US Customary, and typesetting dimensions with exact representation.7,346ISC OR Apache-2.0 OR MITNo standard libraryNo standard library::No dynamic allocation jotsJot Syntax 1.0 RC5 parser (https://jotsyntax.org)55MIT OR Apache-2.0Command line utilitiesParser implementations jotspotA versatile text-based user interface (TUI) tool designed to simplify the annotation process1,539MITCommand-line interfaceGUI jottaThird-party low-level Jottacloud client for Rust.12,368MITAPI bindingsFilesystem jotta-fsThird-party low-level Jottacloud client for Rust.5,425MITAPI bindingsFilesystem jotta-osdObject storage for jotta-fs.2,913MITAPI bindingsFilesystem jottam-coreCore functions for Jottam domain and usecases105Apache-2.0 jottemA lightweight CLI manager for your markdown notes.7,695MITCommand line utilities jotterA tool for taking notes1,740MIT jottyJoTTy is an embeddable distributed processing framework for both short and long running batch jobs1,736GPL-3.0-onlyAsynchronousConcurrency jotunA lightning-fast, terminal-native note-taking tool built in Rust.73MIT jotupA parser for the Djot markup language (dpc's fork of jotdown)185MITParser implementations joularcoreJoular Core is a platform to measure power and energy across all systems, OSes and devices59LGPL-3.0-onlyCommand line utilitiesDevelopment tools jouleA CLI tool to monitor the energy consumption2,897MIT OR Apache-2.0 joule-profiler-cliCLI tool to measure program energy consumption141MIT joule-profiler-coreCore library for joule-profiler, handling orchestration and energy measurements246MIT joule-profiler-source-nvmlNVIDIA NVML-based GPU energy measurement source for joule-profiler152MIT joule-profiler-source-perf_eventperf_event counters source for joule-profiler151MIT joule-profiler-source-raplIntel RAPL energy measurement source for joule-profiler150MIT joulecSelf-hosted energy-aware programming language. Stub installer; `cargo binstall joulec` fetches the real binary.21non-standardCommand line utilities jouledbEnergy-metered database — HDC primitives, joules per query. Stub installer; `cargo binstall jouledb` fetches the real binary.21non-standardCommand line utilitiesDatabase interfaces journalStructured journal implementation.1,882MIT journal-env-loggerLogging into system journal based on `RUST_LOG` environment variable4,446MIT journal-forwarderUtility for forward systemd-journald logs to an HTTP endpoint.93,824Apache-2.0 journal-jsonType definitions to work with systemd-journal-gatewayd1,777MIT OR Apache-2.0 journal-mcpMCP server (and maintenance CLI) for the journal library — project canonical history.128MIT OR Apache-2.0 journal-mcp-coreProject canonical history primitive: chapter state machine + multi-schema EventLog + append-only projections.304MIT OR Apache-2.0 journal-mcp-rmcprmcp (MCP) interface layer for journal-mcp: ServerHandler, tool_router, and stdio transport wiring over journal-mcp-core136MIT OR Apache-2.0Command line utilities journal_cliA tool for writing journal entries6,322MIT journal_entryA tool to generate journal markdown files2,824MITCommand line utilities journal_gatewayAn HTTP client for getting Journal entries from a systemd-journal-gatewayd server3,636MIT journaldA rust binding for the systemd journald api18,829LGPL-2.1+ journald-binaryBinary-format parser for systemd journal (.journal) files107Apache-2.0 journald-carverCarve systemd journal entries via magic-byte scanning of unallocated or damaged journals69Apache-2.0 journald-clijd4n6 - systemd journal (journald) forensic analysis CLI50Apache-2.0 journald-coreCore domain types for systemd journal (journald) forensic analysis121Apache-2.0 journald-export-parser-rsJournald Journal Export Format Parser3,042,593non-standard journald-integrityTampering, sealing, and corruption detection for systemd journal files71Apache-2.0 journald-parserA parser for the systemd journal format1,219MIT journald-querySafe Rust bindings for systemd journal API20,231MIT OR Apache-2.0 journald-to-cloudwatchService that copies logs from journald to AWS CloudWatch Logs.7,617Apache-2.0 journaldbA `HashDB` which can manage a short-term journal potentially containing many forks of mutually exclusive actions23,992GPL-3.0 journaledAn low-level interface for the systemd journal1,582MIT OR Apache-2.0 journalmapJournaling datatypes for easy undo, redo & version control39MITData structures journalviewA lightweight, terminal-based application written in Rust for efficiently viewing, filtering, and navigating system logs from…804MITCommand line utilities journeyjourney is a command line tool to keep track of your journey and to help you get organized.2,596MIT journey-cliA CLI-based journal application with automatic timestamping, vault management, and Obsidian integration73MITCommand line utilitiesText processing journey-engineJourney Engine: A custom 2D game engine built with Rust and wGPU302MITGame developmentGame engines journey-sequencerJourney Engine: A custom 2D game engine built with Rust and wGPU111MIT journey-soundJourney Engine: A custom 2D game engine built with Rust and wGPU108MIT jours-feriesA Rust library to get french public holidays (Jour feries).101,943MIT OR Apache-2.0 jourstSimple command line todo tool7,624MITCommand line utilities joustjousting for contention23MIT jowtunA small TCP relay that scrambles traffic with a deliberately non-cryptographic, password-seeded stream cipher. A teaching toy,…39MITCommand line utilitiesNetwork programming joxideCLI tool to validate and format json files6,013MITCommand line utilities joyJoystick input library8,777MIT OR Apache-2.0 joy-aiAI integration layer for Joy product management913MIT joy-cliCLI for Joy product management - Git-native, terminal-first667MIT joy-coreCore library for Joy product management - Git-native, terminal-first1,650MIT joy-cryptCryptographic primitives for Joy: KDF, AEAD, Ed25519, key wrapping494MIT joybus-pioAn implementation of the controller side of the joybus protocol for gamecube for the RP2040 chip via its PIO functionality.885LGPL-3.0-or-laterEmbedded developmentNo standard library joycon-driverDriver for Nintendo Switch™1,326Apache-2.0 joycon-rsa framework for dealing with Nintendo Switch Joy-Con on Rust easily and efficiently26,067Apache-2.0Game developmentHardware support joydbAn in-memory embedded database with persistence and multiple adapters (JSON, CSV, etc). Acts like a minimalistic ORM with zero…4,759MITDatabase interfacesDatabase implementations joydb_macrosAn in-memory embedded database with persistence and multiple adapters (JSON, CSV, etc). Acts like a minimalistic ORM with zero…4,820MITDatabase interfacesDatabase implementations joydevRust joydev library.9,343GPL-2.0-onlyAPI bindingsOperating systems::Unix APIs joydev-rsRust joydev library.3,956GPL-2.0-onlyAPI bindingsOperating systems::Unix APIs joydev-sysLinux joydev definitions from `linux/joystick.h`.11,932GPL-2.0-onlyExternal FFI bindingsNo standard library joyent-tokio-zookeeperAsynchronous client library for interacting with Apache ZooKeeper4,233MIT/Apache-2.0API bindingsAsynchronous joyfulGenerate delightful, random word combinations - Rust port of the joyful TypeScript library126ISCText processing joyful_createPhoto editing software. Designed to function like GIMP or PhotoShop, although still indev5,283GPL-3.0-or-later joyful_minigrepgrep but mini and colored though5,380MIT joyjsjoyjs1,401MIT joynJoin input files. Create one thread for each input file that reads a line, and write a line each time any thread reads it.9,827MIT/Apache-2.0Command line utilities joystickRust embedded joystick firmware.1,729GPL-3.0 joz-loggerSimple logger6,220MIT jpAn attempt at a friendly graphics API7,527MIT jp-address-searchFast, zero-dependency Japanese address search by postal code (zipcode), prefecture, and city. 日本の郵便番号・都道府県・市区町村の住所検索ライブラリ17MITLocalization (L10n) jp-deinflectorA package for deinflecting Japanese words2,587MIT OR Apache-2.0 jp-holidays-libJapanese holiday library for working with public holiday data in Rust.2,857MITData structuresDate and time jp-location-relation日本の市区町村・都道府県の隣接関係を取得するライブラリ2,794MITData structuresLocalization (L10n) jp-prefecturean utility crate of using Japanese prefectures13,638MITLocalization (L10n) jp-rsJSON parser in rust using pa-rs library6,231MIT jp2kInterface to load JPEG200 images into image7,154MIT OR Apache-2.0Multimedia::Images jp_cliJSON Probe — pluck values from JSON input6,395MITNFACommand line utilities jp_detectReal-time scene text detection using DBNet and an embedded ONNX model.198MITComputer visionMultimedia::Images jp_diffA small crate for computing diffs (part of the jp project)1,947MIT/Apache-2.0 jp_graphA collection of graph traits and algorithms (part of the jp project)1,940MIT/Apache-2.0 jp_inflectionsA small crate to conjugate japanese words7,851GPL-3.0-only jp_multimapA barebones multimap (part of the jp project)2,752MIT/Apache-2.0 jp_partitionA union-find/disjoint-sets algorithm (part of the jp project)1,910MIT/Apache-2.0 jp_utilsUtils for working with Japanese text.9,620AGPL-3.0Text processing jparA text-oriented, zero-copy, parser combinators library1,647MITParsing tools jpark011-guessing_gameA fun game where you guess what number the computer has chosen.4,969MIT jpcd_game_of_lifeImplementation of Conway's game of life suitable for GUI applications.2,658MIT OR Apache-2.0 jpdbWrapper for jpdb.io's API7,343MIT OR Apache-2.0API bindings jpedro-ployCLI testing1,148MIT jpeekA simple tool to peek into your JWT token & Decode it1,290MIT jpeg-decoderJPEG decoder81,103,063MIT OR Apache-2.0 jpeg-encoderJPEG encoder6,916,471(MIT OR Apache-2.0) AND IJGMultimedia::Images jpeg-rusturboSIMD-accelerated JPEG encoder (baseline + progressive SOF2, RGB / grayscale / CMYK, EXIF / ICC pass-through) and Huffman decoder…515MIT OR Apache-2.0EncodingMultimedia::Images jpeg-to-pdfCreate PDFs from JPEG images8,239MIT OR Apache-2.0Command line utilitiesMultimedia::Images jpeg2000Rust bindings to OpenJPEG6,689GPL-3.0 jpeg2kJPEG 2000 image loader.174,863MIT/Apache-2.0 jpeg2k-sandboxedSandboxed Openjpeg image decoder8,573MIT/Apache-2.0 jpeg_extractorExtract jpeg images from any binary via command line5,146MITCommand line utilitiesMultimedia jpegliHigher-level wrapper for Jpegli library3,200BSD-3-ClauseMultimedia::Images jpegli-rsPure Rust JPEG encoder/decoder - port of Google's jpegli with perceptual optimizations843AGPL-3.0-or-laterEncodingMultimedia::Images jpegli-sysRust wrapped for jpegli jpeg implementation3,925BSD-3-Clause jpegxl-rsSafe Rust wrapper for JPEG XL reference implementation142,597GPL-3.0-or-laterAPI bindingsEncoding jpegxl-srcSource of libjxl and logic to build it.64,017BSD-3-Clause jpegxl-sysRust wrapper for JPEG XL reference implementation153,356GPL-3.0-or-laterEncodingExternal FFI bindings jpegxrWrapper for Microsoft's C JPEG XR image codec library17,016BSD-3-ClauseMultimedia::Images jpegxr-pure-rsPure Rust JPEG-XR decoder/encoder translated from JXRLib28BSD-3-ClauseEncodingMultimedia::Images jpf4826_driverRust driver for JPF4826 4-channel PWM fan controller via Modbus-RTU136MITEmbedded developmentHardware support jpf4826ctlCLI tool for JPF4826 fan controller47MITCommand line utilities jpg2asciiConvert images to ASCII art with a Rust library and CLI.21MIT OR Apache-2.0Command line utilitiesMultimedia::Images jpgfromrawA very fast embedded JPEG extractor from RAW files.836MITCommand line utilities jpgfromraw-libLibrary fork of jpgfromraw: embedded JPEG extraction from RAW files119MITCommand line utilities jphfmtA zero-config, opinionated C formatter: one uniform bracket rule, no column alignment.90Apache-2.0Command line utilitiesDevelopment tools jpholidayPure-Rust library to determine Japanese public holidays. 日本の祝日を扱う依存ゼロのRustライブラリ。7,584MITDate and timeLocalization (L10n) jpkiRead certificates, sign and verify documents using your JPKI card.22,744LGPL-2.1-or-later jpki-cliRead certificates, sign and verify documents using your JPKI card.12,227LGPL-2.1-or-later jpki-ffi-genericGeneric FFI binding of jpki-rs for C/C++ and many other languages.3,871LGPL-2.1-or-later jpl-discriminatorSolana Program Library 8-Byte Discriminator Management770Apache-2.0 jpl-discriminator-deriveDerive macro library for the `jpl-discriminator` library781Apache-2.0 jpl-discriminator-synToken parsing and generating library for the `jpl-discriminator` library794Apache-2.0 jpl-elgamal-registrySolana ElGamal Registry Program742Apache-2.0 jpl-podSolana Program Library Plain Old Data (Pod)780Apache-2.0 jpl-program-errorLibrary for Solana Program error attributes and derive macro for creating them772Apache-2.0 jpl-program-error-deriveProc-Macro Library for Solana Program error attributes and derive macro815Apache-2.0 jpl-tlv-account-resolutionSolana Program Library TLV Account Resolution Interface760Apache-2.0 jpl-tokenSolana Program Library Token751Apache-2.0 jpl-token-2022Solana Program Library Token 2022762Apache-2.0 jpl-token-confidential-transfer-ciphertext-arithmeticSolana Program Library Confidential Transfer Ciphertext Arithmetic770Apache-2.0 jpl-token-confidential-transfer-proof-extractionSolana Program Library Confidential Transfer Proof Extraction753Apache-2.0 jpl-token-confidential-transfer-proof-generationSolana Program Library Confidential Transfer Proof Generation779Apache-2.0 jpl-token-group-interfaceSolana Program Library Token Group Interface773Apache-2.0 jpl-token-metadata-interfaceSolana Program Library Token Metadata Interface771Apache-2.0 jpl-transfer-hook-interfaceSolana Program Library Transfer Hook Interface767Apache-2.0 jpl-type-length-valueSolana Program Library Type-Length-Value Management762Apache-2.0 jpl-type-length-value-deriveDerive Macro Library for SPL Type Length Value traits775Apache-2.0 jplaceholderA Rust library for the JSON Placeholder API7,713MIT jpmJPM is a native package manager for the Javascript ecosystem1,632MIT jpngLibrary for handling JPNG images.1,918MITMultimediaMultimedia::Images jpostaA fast and intuitive Terminal User Interface (TUI) tool for searching Japanese postal codes and addresses965MITCommand line utilitiesText processing jpostcode_rsJapanese postal code lookup library in Rust, powered by jpostcode-data4,976MITData structuresParser implementations jppeThis is a byte stream structured serialization and deserialization library.16,190MIT OR Apache-2.0EncodingParser implementations jppe_deriveThis is a byte stream structured serialization and deserialization library.16,422MIT OR Apache-2.0EncodingNo standard library jpqA JSONPath command line tool to extract values from a JSON value.3,285MITCommand line utilities jpreA JDK management tool14,038AGPL-3.0-or-laterCommand line utilitiesDevelopment tools::Build Utils jprectJapan Plane Rectangular Coordinate System6,468MITScience::Geospatial