All 305,250 crates, alphabetically

opencore-jsonrpc-rustA simple and elegant library for creating JSON-RPC servers that communicate with the TypeScript framework OpenCore via…41MITEncodingNetwork programming opencorporaReading and parsing opencorpora.org XML-dictionary.11,396MITParser implementations opencoworkOpenCoWork - Open-source AI collaborative assistant with sandboxed execution26MITCommand line utilitiesDevelopment tools opencowork-cliOpenCoWork CLI - Open-source AI collaborative assistant with sandboxed execution25MITCommand line utilitiesDevelopment tools opencrabsThe autonomous, self-improving AI agent. Single Rust binary. Every channel. Install with: cargo install opencrabs2,089MITCommand line utilitiesDevelopment tools opencratesEnterprise-grade AI-powered Rust development companion with comprehensive automation, monitoring, and deployment capabilities2,256MIT OR Apache-2.0API bindingsCommand line utilities opencreatorCLI for OpenCreator - open creator platform43MITCommand line utilities opencsd-sysBindings to OpenCSD, an ARM CoreSight trace decoder2,476Apache-2.0External FFI bindings openctmPure-Rust decoder for the OpenCTM mesh format (MG1 method)36Apache-2.0GraphicsParsing tools opencvRust bindings for OpenCV3,461,911MITAPI bindingsComputer vision opencv-binding-generatorBinding generator for opencv crate3,157,711MIT opencv-coreOpenCV Core module - fundamental data structures and operations1,262Apache-2.0 opencv-mobile-rsRust bindings for opencv-mobile, a lightweight build of OpenCV optimized for mobile and embedded devices36Apache-2.0AsynchronousGraphics opencv-ros-cameraGeometric models of OpenCV/ROS cameras for photogrammetry143,803MIT OR Apache-2.0AlgorithmsComputer vision opencv-rsHexagonal Rust wrapper over OpenCV I/O and image-processing primitives: ports, fakes, FFI adapters145MIT OR Apache-2.0API bindingsComputer vision opencv-rs-coreRuntime-agnostic domain types and ports for opencv-rs (no FFI dependency)1,103MIT OR Apache-2.0API bindingsComputer vision opencv-rs-fakeIn-memory opencv-rs port implementations for unit testing775MIT OR Apache-2.0API bindingsComputer vision opencv-rs-ffiOpenCV-backed adapters implementing the opencv-rs-core ports1,008MIT OR Apache-2.0API bindingsComputer vision opencv-sdkOpenCV SDK with C/C++/Python API compatibility layer830Apache-2.0 opencv-wasmOpenCV WebAssembly bindings for browser deployment1,057Apache-2.0 opencvminiRust SDK of wasmedge plugin opencvmini1,484Apache-2.0 opencypherA hand-written openCypher parser producing a typed AST for downstream tools81MIT OR Apache-2.0Database interfacesParser implementations opendagzDagz Accelered CI Platform, Open Edition511AGPL-3.0-only opendalApache OpenDAL™: One Layer, All Storage.12,297,612Apache-2.0Filesystem opendal-coreApache OpenDAL™: One Layer, All Storage.636,533Apache-2.0Filesystem opendal-foyerfoyer layer for opendal9,970MPL-2.0 opendal-http-transport-reqwestApache OpenDAL reqwest HTTP transport implementation6,010Apache-2.0 opendal-indexeddbA unofficial opendal indexeddb library .2,059Apache-2.0 opendal-layer-async-backtraceApache OpenDAL async-backtrace layer102Apache-2.0 opendal-layer-await-treeApache OpenDAL await-tree layer100Apache-2.0 opendal-layer-capability-checkApache OpenDAL capability-check layer2,267Apache-2.0 opendal-layer-chaosApache OpenDAL chaos layer for robustness testing111Apache-2.0 opendal-layer-concurrent-limitApache OpenDAL concurrent limit layer438,859Apache-2.0 opendal-layer-dtraceApache OpenDAL dtrace layer102Apache-2.0 opendal-layer-fastmetricsApache OpenDAL metrics layer using fastmetrics101Apache-2.0 opendal-layer-fastraceApache OpenDAL fastrace layer102Apache-2.0 opendal-layer-foyerApache OpenDAL foyer hybrid cache layer289Apache-2.0 opendal-layer-hotpathApache OpenDAL hotpath layer103Apache-2.0 opendal-layer-immutable-indexApache OpenDAL immutable-index layer100Apache-2.0 opendal-layer-loggingApache OpenDAL logging layer435,259Apache-2.0 opendal-layer-metricsApache OpenDAL metrics layer built on metrics crate26,770Apache-2.0 opendal-layer-mime-guessApache OpenDAL mime-guess layer328Apache-2.0 opendal-layer-observe-metrics-commonApache OpenDAL observe metrics common components93,314Apache-2.0 opendal-layer-otelmetricsApache OpenDAL OpenTelemetry metrics layer614Apache-2.0 opendal-layer-oteltraceApache OpenDAL OpenTelemetry trace layer522Apache-2.0 opendal-layer-prometheusApache OpenDAL Prometheus metrics layer92,361Apache-2.0 opendal-layer-prometheus-clientApache OpenDAL metrics layer using prometheus-client165Apache-2.0 opendal-layer-retryApache OpenDAL retry layer545,264Apache-2.0 opendal-layer-routeApache OpenDAL route layer619Apache-2.0 opendal-layer-tail-cutApache OpenDAL tail-cut layer109Apache-2.0 opendal-layer-throttleApache OpenDAL throttle layer14,769Apache-2.0 opendal-layer-timeoutApache OpenDAL timeout layer440,602Apache-2.0 opendal-layer-tracingApache OpenDAL tracing layer72,983Apache-2.0 opendal-parquet-io`opendal-parquet-io` is the adapter for [parquet](https://docs.rs/parquet) IO operations.1,464Apache-2.0Command line utilities opendal-service-aliyun-driveApache OpenDAL Aliyun Drive service implementation3,469Apache-2.0 opendal-service-alluxioApache OpenDAL Alluxio service implementation110Apache-2.0 opendal-service-azblobApache OpenDAL Azure Blob Storage service implementation268,263Apache-2.0 opendal-service-azdlsApache OpenDAL Azure Data Lake Storage Gen2 service implementation225,550Apache-2.0 opendal-service-azfileApache OpenDAL Azure File Storage service implementation14,646Apache-2.0 opendal-service-azure-commonShared Azure helpers for Apache OpenDAL services314,349Apache-2.0 opendal-service-b2Apache OpenDAL B2 service implementation23,260Apache-2.0 opendal-service-cacacheApache OpenDAL Cacache service implementation182Apache-2.0 opendal-service-cloudflare-kvApache OpenDAL Cloudflare KV service implementation110Apache-2.0 opendal-service-compfsApache OpenDAL Compfs service implementation104Apache-2.0 opendal-service-cosApache OpenDAL COS service implementation154,581Apache-2.0 opendal-service-d1Apache OpenDAL D1 service implementation112Apache-2.0 opendal-service-dashmapApache OpenDAL Dashmap service implementation184Apache-2.0 opendal-service-dbfsApache OpenDAL Dbfs service implementation114Apache-2.0 opendal-service-dropboxApache OpenDAL Dropbox service implementation16,398Apache-2.0 opendal-service-etcdApache OpenDAL Etcd service implementation114Apache-2.0 opendal-service-foundationdbApache OpenDAL Foundationdb service implementation111Apache-2.0 opendal-service-foyerApache OpenDAL Foyer service implementation112Apache-2.0 opendal-service-fsApache OpenDAL Fs service implementation312,886Apache-2.0 opendal-service-ftpApache OpenDAL FTP service implementation20,654Apache-2.0 opendal-service-gcsApache OpenDAL Google Cloud Storage service implementation318,817Apache-2.0 opendal-service-gdriveApache OpenDAL gdrive service implementation17,526Apache-2.0 opendal-service-ghacApache OpenDAL GitHub Actions Cache service implementation15,099Apache-2.0 opendal-service-githubApache OpenDAL GitHub service implementation4,111Apache-2.0 opendal-service-goosefsApache OpenDAL GooseFS service implementation via native gRPC95,980Apache-2.0 opendal-service-gridfsApache OpenDAL GridFS service implementation182Apache-2.0 opendal-service-hdfsApache OpenDAL hdfs service implementation35,773Apache-2.0 opendal-service-hdfs-nativeApache OpenDAL HDFS Native service implementation4,109Apache-2.0 opendal-service-hfApache OpenDAL Hugging Face service implementation168,139Apache-2.0 opendal-service-httpApache OpenDAL HTTP service implementation85,339Apache-2.0 opendal-service-ipfsApache OpenDAL IPFS service implementation174Apache-2.0 opendal-service-ipmfsApache OpenDAL ipmfs service implementation14,635Apache-2.0 opendal-service-koofrApache OpenDAL koofr service implementation107Apache-2.0 opendal-service-lakefsApache OpenDAL lakeFS service implementation112Apache-2.0 opendal-service-memcachedApache OpenDAL Memcached service implementation262Apache-2.0 opendal-service-mini-mokaApache OpenDAL mini-moka service implementation185Apache-2.0 opendal-service-mokaApache OpenDAL Moka service implementation176Apache-2.0 opendal-service-mongodbApache OpenDAL Mongodb service implementation119Apache-2.0 opendal-service-monoiofsApache OpenDAL Monoiofs service implementation105Apache-2.0 opendal-service-mysqlApache OpenDAL MySQL service implementation5,091Apache-2.0 opendal-service-obsApache OpenDAL Huawei Cloud OBS service implementation27,641Apache-2.0 opendal-service-onedriveApache OpenDAL OneDrive service implementation16,303Apache-2.0 opendal-service-opfsApache OpenDAL OPFS service implementation99Apache-2.0 opendal-service-ossApache OpenDAL Aliyun OSS service implementation286,842Apache-2.0 opendal-service-pcloudApache OpenDAL pCloud service implementation11,861Apache-2.0 opendal-service-persyApache OpenDAL Persy service implementation176Apache-2.0 opendal-service-postgresqlApache OpenDAL PostgreSQL service implementation976Apache-2.0 opendal-service-redbApache OpenDAL Redb service implementation180Apache-2.0 opendal-service-redisApache OpenDAL Redis service implementation13,807Apache-2.0 opendal-service-rocksdbApache OpenDAL RocksDB service implementation109Apache-2.0 opendal-service-s3Apache OpenDAL S3 service implementation576,454Apache-2.0 opendal-service-seafileApache OpenDAL seafile service implementation106Apache-2.0 opendal-service-sftpApache OpenDAL SFTP service implementation23,625Apache-2.0 opendal-service-sledApache OpenDAL sled service implementation182Apache-2.0 opendal-service-sqliteApache OpenDAL SQLite service implementation1,033Apache-2.0 opendal-service-surrealdbApache OpenDAL Surrealdb service implementation107Apache-2.0 opendal-service-swiftApache OpenDAL Swift service implementation19,583Apache-2.0 opendal-service-tikvApache OpenDAL TiKV service implementation109Apache-2.0 opendal-service-tosVolcengine TOS service implementation for Apache OpenDAL97,089Apache-2.0 opendal-service-upyunApache OpenDAL Upyun service implementation116Apache-2.0 opendal-service-vercel-artifactsApache OpenDAL Vercel Artifacts service implementation105Apache-2.0 opendal-service-vercel-blobApache OpenDAL Vercel Blob service implementation3,318Apache-2.0 opendal-service-webdavApache OpenDAL Webdav service implementation27,382Apache-2.0 opendal-service-webhdfsApache OpenDAL WebHDFS service implementation22,729Apache-2.0 opendal-service-yandex-diskApache OpenDAL Yandex Disk service implementation14,463Apache-2.0 opendal-testkitTest harness and utilities for Apache OpenDAL154Apache-2.0 opendal-unofficialApache OpenDAL™: One Layer, All Storage.995Apache-2.0Filesystem opendal-utilUtilities for OpenDAL696MIT OR Apache-2.0 opendal_compatApache OpenDAL Compat4,002Apache-2.0 opendal_obs[FORK]Apache OpenDAL™: Access data freely, painlessly, and efficiently.2,825Apache-2.0Filesystem opendal_std_fsOpen File Access Layer1,646Apache-2.0Command line utilities opendal_tokio_fsOpen File Access Layer1,650Apache-2.0Command line utilities opendaqSafe Rust bindings for openDAQ, the open-source data acquisition SDK34MITAPI bindingsHardware support opendata-bufferStateless object storage buffer library for OpenData systems187MITDatabase interfaces opendata-commonShared storage foundation for OpenData databases798MITDatabase interfaces opendata-ingestStateless object storage ingestion library for OpenData systems46MITDatabase interfaces opendata-logKey-oriented log database built on SlateDB106MITDatabase interfaces opendata-timeseriesPrometheus-compatible time series database built on SlateDB273MITDatabase interfaces opendata-vectorVector similarity search database built on SlateDB95MITDatabase interfaces opendatafabricCore types of the Open Data Fabric protocol spec1,672MIT OR Apache-2.0 OpenDataSH_twitter_notifierA twitter bot that posts a message for new datasets on the OpenData platform of Schleswig-Holstein4,968AGPL-3.0 opendatasoft-explore-apiHTTP client for Opendatasoft Explore API v21,581BSD-2-ClauseAPI bindings opendatasyncPull down data from Wikidata, OpenStreetMap, and Wikimedia Commons.26LicenseRef-ACSL-1.4-or-newer opendbA high-performance hybrid embedded database in pure Rust with KV, records, graph, and vector support124Apache-2.0Data structuresDatabase implementations opendbpylotNatural-language-to-SQL via Retrieval-Augmented Generation, in Rust15Apache-2.0Command line utilitiesDatabase interfaces opendefocusAn advanced open-source convolution library for image post-processing299EUPL-1.2GraphicsMultimedia opendefocus-datastructureOpenDefocus protobuf datastructure536EUPL-1.2GraphicsMultimedia opendefocus-kernelOpenDefocus convolution kernel435EUPL-1.2GraphicsMultimedia opendefocus-sharedOpenDefocus shared crate for kernel and core crate647EUPL-1.2GraphicsMultimedia opendev-agentsAgent layer with ReAct loop, prompt composition, and subagents397MIT opendev-channelsMulti-channel message router for OpenDev20MIT opendev-cliBinary entry point for the OpenDev CLI218MIT opendev-configConfiguration and path management for OpenDev746MIT opendev-contextContext engineering: compaction, validation, and context picking for OpenDev438MIT opendev-dockerDocker runtime support for OpenDev AI coding agent20MIT opendev-historySession history management: persistence, indexing, locking, and snapshots for OpenDev394MIT opendev-hooksLifecycle hook system for OpenDev: shell-based hooks triggered on tool use, session, and agent events20MIT opendev-httpHTTP client, authentication, and provider adapters for OpenDev480MIT opendev-mcpMCP (Model Context Protocol) client for OpenDev349MIT opendev-memoryACE memory system: playbook, delta operations, embeddings, selection, reflection439MIT opendev-modelsCore data models for OpenDev877MIT opendev-pluginsPlugin and marketplace management for opendev21MIT opendev-replREPL loop and command handling for OpenDev255MIT opendev-runtimeRuntime services: approval rules, cost tracking, interrupt token, plan management, error handling440MIT opendev-tools-coreTool framework foundation for OpenDev: traits, registry, policies, and sanitization521MIT opendev-tools-implTool implementations for OpenDev: bash, file ops, git, web, memory, and more256MIT opendev-tools-lspLSP integration for OpenDev: language server management, JSON-RPC protocol, and symbol caching347MIT opendev-tools-symbolSymbol operations for OpenDev: find, references, rename, and replace body via LSP22MIT opendev-tuiRatatui-based terminal UI for OpenDev256MIT opendev-webWeb backend (axum + WebSocket) for OpenDev AI coding agent255MIT opendeviationbar-clientClient library for consuming open deviation bar data via SSE1,876MITFinanceNetwork programming opendeviationbar-coreCore open deviation bar construction algorithm with temporal integrity guarantees3,486MITAlgorithmsData structures opendeviationbar-hurstHurst Exponent estimator functions for open deviation bar financial analysis3,803MITAlgorithmsMathematics opendeviationbar-providersData providers for opendeviationbar: Binance2,786MITAPI bindingsFinance opendeviationbar-streamingReal-time streaming engine for open deviation bar processing2,615MITAlgorithmsFinance opendhtA Rust API for OpenDHT14,234GPL-3.0 opendht-sysLow-level bindings to the OpenDHT C library1,544GPL-3.0API bindingsExternal FFI bindings opendict-rsUnified Rust reader for StarDict and MDict dictionaries155MITParser implementationsText processing opendidOpenDID Tool1,679MIT opendiskmapSingle-threaded disk-backed hash map with memory-mapped file backing418Apache-2.0Data structuresDatabase implementations opendocswork-mcpRust-native MCP server for Office document processing (Excel, Word, PowerPoint). Sub-millisecond, local-first, open source…57GPL-3.0-onlyCommand line utilities opendpA library of differential privacy algorithms for the statistical analysis of sensitive private data.313,712non-standard opendp-ffiForeign function interfaces for the OpenDP library.18,930non-standard opendp_deriveMinimal proc-macro wrappers around the opendp_tooling crate.280,423non-standard opendp_toolingTooling for proc-macros and code generation.280,226non-standard opendriveOpenDRIVE parser and writer for Rust1,783MITAPI bindingsParser implementations opendroneidSafe Rust wrapper for Open Drone ID encoding/decoding APIs219Apache-2.0 opendroneid-sysRaw FFI bindings to libopendroneid (Open Drone ID core C library)302Apache-2.0 openedao19Apache-2.0 openeda-cliCommand-line interface for OpenEDA.19MITCommand line utilities openehr-rsAn actix wrapper for openEHR api.24,194MIT openeis-generateA project/template generator whose configuration is written in KDL instead of TOML20MIT OR Apache-2.0Command line utilitiesDevelopment tools openemc-ioUserspace interface for communicating with an OpenEMC embedded controller31MITHardware supportOperating systems::Linux APIs openentropy-cliCLI for openentropy — your computer is a hardware noise observatory261MITCryptographyHardware support openentropy-coreCore entropy harvesting library — hardware noise sources, raw or SHA-256 conditioned1,418MITCryptographyHardware support openentropy-serverHTTP entropy server with an ANU-style random endpoint364MITCryptographyHardware support openentropy-testsNIST SP 800-22 inspired randomness test battery366MIT openentropy-wasmWebAssembly entropy collection using browser APIs — timing jitter, crypto.getRandomValues(), and scheduling noise191MIT openenvRust port of Hugging Face OpenEnv20MIT openepaperlink-sdkRust SDK for communicating with OpenEPaperLink access points — manage e-paper tags, upload images, and stream real-time events35MITAPI bindingsHardware support openerOpen a file or link using the system default program.31,558,094MIT OR Apache-2.0Operating systems openerukaSelf-hosted knowledge state memory server for AI agents — types, client, SQLite backend, REST API, MCP153MITAPI bindingsData structures openeruka-clientTyped async HTTP client for the Eruka context memory API22MITAPI bindingsWeb programming::HTTP client openeruka-serverStandalone openeruka server — SQLite-backed knowledge state memory (REST + MCP + CLI)23MITCommand line utilitiesWeb programming openexchangeratesLibrary for communicate with OpenExchangeRates API.10,326MIT openexrHigh-level bindings to OpenEXR 3.0.523,557BSD-3-ClauseAPI bindingsComputer vision