All 305,250 crates, alphabetically

openexr-coreRust bindings for OpenEXR core (placeholder)1,639BSD-3-ClauseAPI bindings openexr-core-sysRust bindings for OpenEXR core (placeholder)1,641BSD-3-ClauseExternal FFI bindings openexr-syscppmm-based FFI bindings for OpenEXR 3.0.523,084BSD-3-Clause openf1Unofficial Rust client for the OpenF1 API22EUPL-1.2API bindingsWeb programming openfairFactor Analysis of Information Risk (OpenFAIR)1,893MIT/Apache-2.0Simulation openfalOpen File Access Layer1,616Apache-2.0Command line utilities openfareMicropayment funded software.9,784non-standard openfare-jsJavascript ecosystem extension for OpenFare.13,129non-standard openfare-libOpenFare core library.15,079non-standard openfare-rsRust ecosystem extension for OpenFare.3,667non-standard openfda-rsAn unofficial Rust wrapper for the openFDA API24MIT openfgaRust SDK for OpenFGA — the open-source authorization system115MITAPI bindingsAuthentication openfga-clientType-safe client SDK for OpenFGA with optional Authorization Model management and Authentication (Bearer or Client Credentials).57,464Apache-2.0 openfga-dsl-parserParsing and JSON transformer for the OpenFGA authorization DSL2,289Apache-2.0 openfga-rsRust SDK for the OpenFGA1,624MIT OR Apache-2.0 openfga-sdkAutogenerated SDK for OpenFGA7,331Apache-2.0 openfga_checkerOpenFGA model checker, contains code to check the validity of a model3,850Apache-2.0 openfga_commonCommon OpenFGA package, contains shared data structures4,968Apache-2.0 openfga_compilerOpenFGA model compiler, contains cli interface1,522Apache-2.0 openfga_lspOpenFGA LSP implementation using openfga_rs1,498Apache-2.0 openfga_model_dsl_parserOpenFGA DSL parser, contains code to parse a model definition2,690Apache-2.0 openfheRust package of the OpenFHE Fully Homomorphic Encryption Library.13,698BSD-2-Clause openfhe-rsRust package of the OpenFHE Fully Homomorphic Encryption Library.1,459non-standard openfhe-rustOpenFHE Rust1,482Apache-2.0 openfigi-rsA Rust client for interacting with the OpenFIGI API and parsing financial data.3,076MITAPI bindingsData structures openfileA simple way to interact with files.16,361MIT openflightCrates.io reservation for the existing OpenFlight real-time flight input and device project.18MIT OR Apache-2.0Game developmentHardware support openflights-rustExpose data from openflights.org1,381MIT AND ODbL-1.0 openfmbOpen Field Message Bus1,663GPL-3.0 openfoam-basic-libOpenFOAM primitive functions translated to Rust121GPL-3.0-onlyScience openfoamparserAn OpenFOAM parser based on the openfoamparser Python package4,032non-standard openfoamparser_rustAn OpenFOAM parser based on the openfoamparser Python package1,634non-standard openfpga-xbpar-rsplaceholder1,617BSD-2-Clause openfpga-xc2bitPlease use the 'xc2bit' crate instead2,962BSD-2-Clause openfpga-xc2parplaceholder1,619BSD-2-Clause openframesUltra-simple native macOS video editor for skating footage, with automatic subject tracking and auto-cropping. Early development…20MITMultimedia::Video openfsOpen File System Access Layer1,636Apache-2.0Command line utilities openfunctions-rsA universal framework for creating and managing LLM tools and agents525MITAPI bindingsCommand line utilities openfuseDEPRECATED — use `openfused` instead. Run: cargo install openfused308MIT openfusedOpenFused — the file protocol for AI agent context. CLI + daemon.75MIT openfused-coreCore library for OpenFused — crypto, store, message types. Compiles to wasm32-wasip1.125MIT openfx-sysRust bindings for OpenFX1,932MIT OR Apache-2.0 opengame-cliCLI tool for OpenGame Engine17MITCommand line utilitiesGame engines opengame-engineA lightweight, high-performance 2D game engine for WebAssembly19MITGame enginesWebAssembly opengateAn open-source toolset for consciousness expansion.622GPL-3.0-or-laterMultimedia::Audio opengate-coreHeadless, agent-first task management engine229MITCommand line utilitiesWeb programming opengate-modelsDomain types, enums, and DTOs for OpenGate362MIT opengatellmClient Rust pour OpenGateLLM, l'API gateway open-source pour LLM self-hosted (DINUM / Etalab).18MIT OR Apache-2.0API bindingsAsynchronous opengaussA native, synchronous openGauss client2,648MIT/Apache-2.0Database interfaces opengauss-deriveAn internal crate used by opengauss-types2,010MIT/Apache-2.0 opengauss-native-tlsTLS support for tokio-opengauss via native-tls1,732MIT/Apache-2.0 opengauss-opensslTLS support for tokio-opengauss via openssl1,629MIT/Apache-2.0 opengauss-protocolLow level openGauss protocol APIs4,628MIT/Apache-2.0 opengauss-typesConversions between Rust and openGauss values4,107MIT/Apache-2.0Database interfaces opengauss_bindgenRust library for writing WebAssembly-powered user-defined functions for openGauss1,504MIT OR Apache-2.0 opengauss_bindgen_macrosRust macros for writing WebAssembly-powered user-defined functions for openGauss2,044MIT OR Apache-2.0 opengeminiRust client for OpenGemini1,225Apache-2.0 opengenome_coreCore tab, command, and config model for Open Genome.52MIT opengenome_tuiOpen Genome terminal utility for setting up and running genomics workflows.35MIT opengl-registryRust API for the OpenGL API and Extension Registry4,386MIT OR Apache-2.0API bindings opengl-registry-macrosMacros utilizing the OpenGL API and Extension Registry1,502MIT OR Apache-2.0 opengl32-sysContains function definitions for the Windows API library opengl32. See winapi for types and constants.21,649MIT openglesRust bindings for OpenGL ES 2.011,444Apache-2.0 opengles_graphicsAn OpenGL ES 2D back-end for the Piston game engine5,007MIT openglmOpenGLM rust sdk3,901MIT opengm_cryptoThe Chinese GM/T cryptographic algorithems850MIT OR Apache-2.0 opengm_rtsGM/T 0005-2021 randomness test suits written in Rust.8,873MIT OR Apache-2.0 opengolfcoachCross-platform library for calculating derived golf shot values304Apache-2.0Game developmentScience opengooseReserved crate name for the OpenGoose project22MIT opengr2A file parser for Granny2 (.gr2) files written in pure rust2,144MIT opengraphParses html and extracts Open Graph protocol markup25,291MIT opengraph-rsParses html and extracts Open Graph protocol markup. Fork of https://github.com/kumabook/opengraph1,937MIT opengrepAdvanced AST-aware code search tool with tree-sitter parsing and AI integration capabilities1,323MIT OR Apache-2.0Command line utilitiesDevelopment tools openh264Idiomatic bindings for OpenH264.582,261BSD-2-ClauseAPI bindingsMultimedia::Video openh264-sysBindings to OpenH26410,448BSD-2-Clause openh264-sys2Low-level bindings for OpenH264.587,492BSD-2-ClauseAPI bindingsMultimedia::Video openharmony-abilityBinding Rust application on Harmony with Ability9,332MIT OR Apache-2.0 openharmony-ability-deriveBinding Rust application macro on Harmony with Ability8,716MIT OR Apache-2.0 openhawkOpenHawk Agent OS — manage AI agents as real OS processes18MITCommand line utilitiesDevelopment tools openhawk-busJSON-RPC message bus for inter-agent communication in OpenHawk73MITAsynchronousNetwork programming openhawk-compressToken compression layer for LLM context — wraps sqz for OpenHawk agents46MITCommand line utilitiesCompression openhawk-coreCore runtime for OpenHawk Agent OS — agent lifecycle, orchestration, config, healing116MITAsynchronousCommand line utilities openhawk-memoryPersistent cross-session memory store for OpenHawk agents — wraps aura73MITCommand line utilitiesDatabase interfaces openhawk-nestPackage registry client for the HawkNest agent marketplace46MITCommand line utilitiesDevelopment tools openhawk-savepointCopy-on-write filesystem snapshots and rollback for OpenHawk agents70MITCommand line utilitiesFilesystem openhawk-sdkSDK and project scaffold generator for OpenHawk agents (Rust, Python, TypeScript)45MITCommand line utilitiesDevelopment tools openhawk-syncCross-device sync with conflict resolution for OpenHawk agent state45MITCommand line utilitiesNetwork programming openhawk-uiTerminal UI dashboard for monitoring OpenHawk agents in real time46MITCommand-line interfaceVisualization openhawk-vaultAES-256-GCM encrypted secrets vault for OpenHawk agents46MITCommand line utilitiesCryptography openhawk-verifyAgent claim verification engine — wraps claimcheck for OpenHawk sessions48MITCommand line utilitiesDevelopment tools openhawk-watchAPI drift and phantom dependency detection for OpenHawk — wraps ghostdep and etch46MITCommand line utilitiesDevelopment tools openheimA fast, multi-provider LLM agent runtime written in Rust176MITAsynchronousCommand line utilities openhelmAI-powered Telegram bot and daemon with a configurable skill and tool system22MITAsynchronousCommand line utilities openhelm-githubGitHub skill for openhelm: browse repos, issues, PRs, and files89MITAPI bindingsAsynchronous openhelm-httpHTTP skill for openhelm: GET, POST, PUT, PATCH, DELETE, HEAD91MITAPI bindingsAsynchronous openhelm-sdkTrait definitions and types for building openhelm skills and tools214MITAPI bindingsAsynchronous openhistogramFast, dense, stable auto-binning histograms.1,486Apache-2.0Algorithms openhmd-rsSafe OpenHMD bindings15,982MIT openhmd-rs-sysUnsafe OpenHMD bindings11,389MIT openhtfTofuPilot handler for OpenHTF19MIT openhumanOpenHuman - Virtual human assistance1,473non-standard openiapopeniap test client25,485MPL-2.0 openiap-clibopeniap client c library for SDK wrappers24,904MPL-2.0 openiap-clientopeniap client library27,208MPL-2.0 openiap-protocompiled protos for openiap27,861MPL-2.0 openidOpenID Connect & Discovery client library using async / await.4,106,057Unlicense OR MITAuthentication openid-actixopenid-actix description.1,546Unlicense OR MIT openid-axumopenid-axum description.1,511Unlicense OR MIT openid-clientOpenID client for Rust58,954MIT openid-connectA OpenID Connect implementation based on the `jose` crate661MIT OR Apache-2.0AuthenticationCryptography openid-examplesopenid-examples demo collection.1,175Unlicense OR MIT openid-federationA Rust implementation of the OpenID Federation 1.0 standard282Apache-2.0AuthenticationWeb programming openid-providersopenid-providers description.898Unlicense OR MIT openid-rocketopenid-rocket description.1,570Unlicense OR MIT openid-tideopenid-tide description.1,532Unlicense OR MIT openid-toweropenid-tower description.1,565Unlicense OR MIT openid-warpopenid-warp description.1,518Unlicense OR MIT openid4vcOpenID for Verifiable Credentials1,561MIT OR Apache-2.0 openid4vciOpenID Connect for Verifiable Credentials Issuance1,532MIT OR Apache-2.0 openid4vci-rsOpenID for Verifiable Credential Issuance771MIT OR Apache-2.0AuthenticationCryptography openid4vpOpenID Connect for Verifiable Presentations1,569MIT OR Apache-2.0 openid4vp-rsOpenID for Verifiable Presentations762MIT OR Apache-2.0AuthenticationCryptography openidauthzenOpenID AuthZEN Authorization API 1.0 — Policy Decision and Enforcement Points for Rust22MIT OR Apache-2.0AuthenticationWeb programming openidconnectOpenID Connect library10,781,463MIT openidconnect-laxOpenID Connect library2,565MIT openie-luxReactive, energy-aware programming language compiling to flowG. Stub installer; `cargo binstall openie-lux` fetches the real…17non-standardCommand line utilities openigtlink-rustRust implementation of the OpenIGTLink protocol for image-guided therapy1,619MITNetwork programmingScience openimageioRust bindings for OpenImageIO (placeholder)1,821BSD-3-ClauseAPI bindings openimageio-sysRust bindings for OpenImageIO (placeholder)1,755BSD-3-ClauseExternal FFI bindings openimmoRust types for working with the OpenImmo 1.2.7c XML schema23EUPL-1.2 openinfer-dslRust-embedded DSL for defining OpenInfer graphs with explicit control flow and memory semantics.141Apache-2.0 openinfer-simulatorHost-side simulator and runtime for OpenInfer graphs.23Apache-2.0 openinfer-simulator-generatorInternal build tools for OpenInfer (not public API).158Apache-2.0 openinference-instrumentationOpenInference instrumentation helpers for Rust applications415MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Profiling openinference-semantic-conventionsOpenInference semantic conventions for LLM observability in Rust45,634MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Profiling openinfra-loggerUniversal structured logging — zero-dependency, RFC 8259-compliant JSON, file + console transports. Sibling implementations exist…20MITDevelopment tools::DebuggingEncoding opening-hoursA parser and evaluation tool for the opening_hours fields in OpenStreetMap.74,639MIT OR Apache-2.0 opening-hours-syntaxA parser for opening_hours fields in OpenStreetMap.65,500MIT OR Apache-2.0 openinternetcryptographykeysA Simple Standard Cryptography-Suite For Web 3.20, offering cryptographic abstraction (Generic Signing/Verifying, Generic…77Apache-2.0 OR MITAuthenticationCryptography openipc-coreShared OpenIPC FPV packet, RTP, and Realtek RX parsing logic1,212MIT openipc-rtl88xxRust Realtek rtl88xx USB WiFi receiver driver for OpenIPC913MIT openipc-uplinkUserspace OpenIPC WFB tunnel, TCP, and VTX control257MIT openipc-videoLow-latency platform video decoding for OpenIPC applications462MITHardware supportMultimedia::Video openipc-webWebAssembly bindings for openipc-rs592MIT openjd-cliOpen Job Description CLI — validate, summarize, and run job templates437(Apache-2.0 OR MIT)Command line utilities openjd-exprOpen Job Description expression language — types, evaluation, and path mapping6,911(Apache-2.0 OR MIT)Parser implementationsTemplate engine openjd-modelOpen Job Description model library — parsing, validation, and job creation4,578(Apache-2.0 OR MIT)Data structuresParser implementations openjd-sessionsOpen Job Description sessions — local job execution runtime4,560(Apache-2.0 OR MIT)Command line utilitiesOperating systems openjd-snapshots[Experimental] Job attachments snapshot library for content-addressed file tree operations. The v2023 on-disk manifest format is…624(Apache-2.0 OR MIT) openjlcUltra-fast Gerber conversion tool.6,324MITCommand line utilitiesDevelopment tools openjp2Rust port of Openjpeg.158,026BSD-2-Clause openjpeg-sysOpenJPEG (JPEG 2000) FFI bindings238,564BSD-2-Clause openjpeg2-sysStatically links against OpenJPEG2, used by the jpeg2000 crate.10,127BSD-2-Clause openjph-coreHTJ2K (JPEG 2000 Part 15) codec library — pure Rust port of OpenJPH925BSD-2-Clause openkacheOpenKache client — 10x cheaper and faster than Redis35AGPL-3.0 openkalOpen Key Access Layer1,609Apache-2.0Command line utilities openkeyvAsync Key-Value Store - A pluggable interface for KV Stores37Apache-2.0AsynchronousCaching openkfopenkf17MIT openkitA cross-platform CSS-styled UI framework for Rust81MIT OR Apache-2.0GUIRendering openkit-macrosProcedural macros for the OpenKit UI framework189MIT OR Apache-2.0Development tools::Procedural macro helpersGUI openkit403HTTP-native wallet authentication for Solana38MITAuthenticationCryptography openkoiExecutive Function as a Service. AI agent that thinks before it acts. Single binary, any model.286MITCommand line utilitiesDevelopment tools openkruiseopenkruise api1,489Apache-2.0 openkruise-rsopenkruise api1,486Apache-2.0 openkspace-cliCommand-line interface for OpenKSpace MRI reconstruction engine.19Apache-2.0Command line utilitiesScience openkspace-ioReaders for MRI raw k-space formats: ISMRMRD (HDF5) and FastMRI (HDF5).55Apache-2.0Parser implementationsScience openkspace-reconK-space -> image reconstruction: IFFT, coil combination, corrections.39Apache-2.0AlgorithmsScience openkvopenkv18MIT openlark飞书开放平台 Rust SDK - 企业级高覆盖率 API 客户端，极简依赖一条命令4,302Apache-2.0API bindingsDevelopment tools openlark-aiOpenLark AI 智能助手模块 - 提供 AI 相关 API 支持532Apache-2.0API bindingsDevelopment tools openlark-analytics飞书开放平台数据分析模块 - 搜索服务、数据分析 API (14 APIs)504Apache-2.0API bindingsWeb programming openlark-applicationOpenLark 应用管理模块 - 提供飞书应用 API507Apache-2.0 openlark-authOpenLark 认证模块 - 提供令牌管理、缓存、验证和刷新功能4,454Apache-2.0 openlark-botOpenLark 机器人模块 - 提供飞书机器人搜索 API16Apache-2.0 openlark-cardkit飞书开放平台 Rust SDK - 企业级 API 客户端2,175Apache-2.0API bindingsDevelopment tools openlark-clientOpenLark 高级客户端 - 统一入口点和轻量级服务注册表4,459Apache-2.0API bindingsDevelopment tools openlark-communication飞书开放平台 Rust SDK - 企业级 API 客户端3,664Apache-2.0API bindingsDevelopment tools openlark-coreOpenLark 核心基础设施 crate - HTTP 客户端、错误处理、认证和核心工具5,546Apache-2.0API bindingsDevelopment tools openlark-docs飞书开放平台云文档服务模块 - 文档、表格、知识库API (202 APIs, 100% 覆盖，不含旧版本)1,324Apache-2.0API bindingsWeb programming openlark-helpdeskOpenLark 帮助台模块 - 提供飞书帮助台 API505Apache-2.0 openlark-hrOpenLark 人力资源模块 - 招聘、CoreHR、考勤、薪酬等 562 个 API530Apache-2.0API bindingsDevelopment tools openlark-mailOpenLark 邮件模块 - 提供飞书邮件组 API509Apache-2.0 openlark-meetingOpenLark 会议与日程模块 - 视频会议、日历、会议室管理 API530Apache-2.0API bindingsDevelopment tools openlark-platform飞书开放平台服务模块 - 应用管理、目录服务、系统管理 API (95 APIs)514Apache-2.0API bindingsWeb programming openlark-protocolLark/Feishu websocket client protobuf definitions.473Apache-2.0API bindings openlark-security飞书开放平台安全认证服务模块 - 身份认证、权限管理、安全审计 (44 APIs)535Apache-2.0API bindingsAuthentication openlark-user飞书开放平台用户设置模块 - 个人设置 system_status API522Apache-2.0API bindingsWeb programming openlark-webhook飞书开放平台 Rust SDK - 企业级 API 客户端1,263Apache-2.0API bindingsDevelopment tools openlark-workflowOpenLark 工作流模块 - 提供飞书任务/审批/看板 API537Apache-2.0 openlatch-clientThe open-source security layer for AI agents — client forwarder156Apache-2.0Command line utilitiesDevelopment tools openlatch-providerSelf-service onboarding CLI + runtime daemon for OpenLatch Editors and Providers97Apache-2.0Command line utilitiesDevelopment tools openlbA high-speed Sexual Image classifier and filtering library246non-standardComputer visionMultimedia::Images openldapStraightforward Rust bindings to the C openldap library. This is a fork of cldap that has been methodically fixed, extended, and…33,354MIT openleadr-clientOpenADR 3.1 client5,256Apache-2.0 OR MITWeb programming openleadr-vtnOpenADR 3.1 VTN server4,530Apache-2.0 OR MITWeb programming openleadr-wireEncode and decode OpenADR 3.1 messages that go over the wire6,322Apache-2.0 OR MITWeb programming openlegendsOpen Source, Multi-Player Card Game838MITGame developmentGames openlegends-apiShared Client/Server API906MITGame developmentGames openlegends-assetGame asset for OpenLegends Card Game2,128MITGame developmentGames openlegends-clientOpenLegends Client Library2,358MITGame developmentGames