All 305,250 crates, alphabetically

ojo_partitionA union-find/disjoint-sets algorithm (part of the ojo project)4,255MIT/Apache-2.0 ojo_wasmA minimal wasm interface to ojo (an educational version control system)1,834MIT/Apache-2.0 ojosCLI tool to help members of the Ojos Project at the University of California, Irvine.6,959GPL-3.0-only ojp-rsA library for interacting with Open Journey Planner (OJP) services2,119non-standard ok.ok folder profiles1,976MIT ok-dnsA command line tool to find files and directories by name.2,817MIT OR Apache-2.0 ok-pickerA color picker application focused on colorscheming in Ok colorspace (from Björn Ottosson)5,455GPL-3.0-only ok_macrosThe standard library that's ok26,540BSD-3-Clause ok_orok_or3,632MulanPSL-2.0 okaeri-sdkOkaeri Services SDK7,350MITAPI bindings okamiPost-quantum cryptographic identity for AI agents35MIT OR Apache-2.0AuthenticationCryptography okamotoOkamoto (2006) Blind Signatures1,149BUSL-1.1 okaneCLI tool to support Ledger (https://www.ledger-cli.org/) equivalent syntax files.20,110MIT okane-coreLibrary to support parsing, emitting and processing Ledger (https://www.ledger-cli.org/) format files.10,465MIT okane-goldensimple library supporting Golden Testing2,393Apache-2.0 okansiAn ok library for creating ANSI terminal styles1,218MIT okapiStructs for OpenAPI (AKA Swagger) documents1,977,483MITWeb programming okapi-operationProcedural macro for generating OpenAPI operation specification (using okapi)407,843MITWeb programming okapi-operation-macroMacro implementation for okapi-operation389,833MITWeb programming okapi-response-macA macro for creating response code based on responses structs rather than typing and implementing OkapiRocketResponseInner…1,951MIT okapi_forkStructs for OpenAPI (AKA Swagger) documents, forked with patches until original library catches up4,422MIT okaraUniversal layered context protocol and data structures.143MIT okara-opsFormal implementation and operational logic for Okara morphisms.27MIT okara-specFormal specification and schema definitions for Okara morphisms.28MIT okasakiA collection of peristent datastructures1,611MIT okayEverything is going to be okay(tm)1,706MIT okay-locBinary for counting lines of code in project, it is okay and git 'aware'.1,709MIT OR Apache-2.0 okay_libcfg Lottery demonstration2,192MIT okaywalAn okay Write-Ahead Log implementation16,338MIT OR Apache-2.0Database interfaces okcodes-configLayered configuration system for Rust applications.6,164MIT OR Apache-2.0Configuration okee-wheel-timerDeterministic hashed wheel timer with keyed deduplication.27MITAlgorithmsData structures okerWeb Backend framework for rust274LGPL-3.0-only okerrErgonomic result / error handling helpers built on anyhow and thiserror.265MITData structuresRust patterns okeyEverything is Result::Ok...2,847MIT okey-cliAn advanced, easy-to-use key remapper for Linux1,686MITCommand-line interfaceHardware support okfA pure-Rust, zero-dependency implementation of the Open Knowledge Format (OKF) v0.1: parser, model, validator, link graph, and…85Apache-2.0Data structuresParser implementations okf-cliA cross-platform command-line tool22MIT okf-httpHTTP server for browsing and managing Open Knowledge Format repositories.98Apache-2.0Web programming::HTTP server okf-lintA CLI linter that validates markdown documentation bundles against the Open Knowledge Format (OKF) specification, plus a fixed…27non-standard okf-open-knowledge-formatCore document model and repository API for the Open Knowledge Format.72Apache-2.0FilesystemText processing okftool-cliokftool — validate and lint OKF bundles from the command line.48Apache-2.0Command line utilitiesDevelopment tools okftool-coreCore OKF parser, spec validator, and lint engine for okftool.76Apache-2.0Command line utilitiesDevelopment tools okh-scraperA scraper of Open Source Hardware (OSH) projects. based on the Open Know-How (OKH) standard.902AGPL-3.0-or-laterCommand line utilitiesText processing okh-toolA CLI tool to deal with Open Know-How (OKH) data files. Its main functionalities are: validation of and conversion…3,826AGPL-3.0-or-laterCommand line utilitiesText processing okhslOklab extension for HSL (Okhsl) and HSV (Okhsv) color spaces26,031MITGraphics okidA library for generating double clickable ids37,739BSD-3-Clause okieCreate common files from a collection of templates5,044MIT okizemea micro engine for creationg fighting games in bevy1,639MIT OR Apache-2.0 okizeme_animationcrate for handling animation in okizeme2,911MIT OR Apache-2.0 okizeme_corecrate exposing all of the sub crates for okizeme2,342MIT OR Apache-2.0 okizeme_defensea crate handling defense, hurtboxes, and damage in okizeme3,552MIT OR Apache-2.0 okizeme_inputa crate handling input mapping and reading in okizeme3,556MIT OR Apache-2.0 okizeme_offensea crate handling attacks, hitboxes, and combos in okizeme2,961MIT OR Apache-2.0 okizeme_playera crate handling player resources and input devices in okizeme2,977MIT OR Apache-2.0 okizeme_typesa crate containing various high level types in okizeme4,693MIT OR Apache-2.0 okizeme_utilsa crate containing various utility types and functions for okizeme4,729MIT OR Apache-2.0 okkYet another approach to replacing the `Ok(())`.1,052MIT OR Apache-2.0No standard libraryRust patterns okkhorA Rust library for English to Bangla phonetic conversion implementing the 'Avro' rules15,946MIT okkoiokkoi2,151Apache-2.0 okkomm-rsOK.Komm client for Rust9,768MIT oklabOK Lab is a perceptually uniform color space for image processing. Improvement of CIELAB.219,556CC-PDDCGraphics oklch-color-pickerA standalone graphical color picker using the Oklch color space. Allows output to hex, rgb, hsl and many other formats.20,479MITVisualization oklinkA Rust SDK for interacting with the OKLink API2,171MITAPI bindingsWeb programming::HTTP client okmainOK main colors of your image643MIT OR Apache-2.0Multimedia::Images okmanCLI manager for OnlyKey hardware security keys123MITCommand line utilities okoFully local home security system.9,930GPL-3.0-only oko-mdnsA multicast DNS client library. Supports discovery of any mDNS device on a LAN.1,753MITNetwork programming oko-multicast-socketSingle-socket multi-interface multicast socket1,577MIT OR Apache-2.0 okofdbOne Key One File Database6,784Apache-2.0 okokHello world1,111MIT okolorsCreate color palettes from images by performing k-means clustering in the Oklab color space.15,877MIT OR Apache-2.0Multimedia::Images okpyeonKorean IME candidate data: hangul reading -> hanja candidates with hun-eum glosses (옥편), plus the MS-IME-style consonant ->…21(MIT OR Apache-2.0) AND BSD-3-ClauseInternationalization (i18n)No standard library okqA fast, deterministic CLI for searching and navigating Open Knowledge Format (OKF) document bundles — for humans and AI agents.123Apache-2.0Command line utilitiesText processing okraRust API client for Okta.3,355Apache-2.0 oksipa sip stack1,587MIT okspielDesktop application to handle remotely multiple Okcash full node wallets1,622MITAsynchronousCryptography::Cryptocurrencies okstdThe standard library that's ok29,319BSD-3-Clause oktaA fully generated & opinionated API client for the Okta API.85,556MIT okta-jwt-verifierA helper library for working with JWT's for Okta in Rust57,788MIT OR Apache-2.0Web programming okthiefpywal backend using OKLab to sample images and generate color palettes1,525GPL-3.0 oktiA workflow engine that runs anywhere1,493non-standard oktofetchA GitHub release binary manager564MITCommand line utilitiesDevelopment tools oktreeFast octree implementation.8,988MIT okuPCB-inspired procedural city generation — a domain-specific facade over ogun91MITAlgorithmsGame development okukAn interactive shell/REPL for Rust1,593Unlicense okulSpaced-repetition reviewer and authoring tool for markdown knowledge vaults. Placeholder — implementation in progress.23MITCommand line utilities okvA versatile key-value storage library15,947MIT OR Apache-2.0 okv_coreA versatile key-value storage library4,358MIT OR Apache-2.0API bindingsConcurrency okv_memoryA versatile key-value storage library2,373MIT OR Apache-2.0API bindingsConcurrency okv_rocksdbA versatile key-value storage library2,037MIT OR Apache-2.0API bindingsConcurrency okvsWIP implementation of Oblivious Key-Value Stores4,006MIT okxOKX交易所API SDK4,444MITAPI bindingsFinance okx-rsUnofficial Rust Library for the OKX V5 API3,120MIT OR Apache-2.0 okx-sdklibrary for okx988MITAPI bindings okxweb3-app-mppOKX Agent Payments Protocol: MPP EVM integration43Apache-2.0Cryptography::CryptocurrenciesWeb programming::HTTP server okxweb3-app-payment-router-axumOKX Agent Payments Protocol: Axum middleware routing MPP + x402 on the same endpoint40Apache-2.0Cryptography::CryptocurrenciesWeb programming::HTTP server okxweb3-app-x402-axumOKX Agent Payments Protocol: x402 Axum middleware142Apache-2.0Cryptography::CryptocurrenciesWeb programming::HTTP server okxweb3-app-x402-coreOKX Agent Payments Protocol: x402 core types, server logic, and facilitator client190Apache-2.0Cryptography::CryptocurrenciesWeb programming::HTTP server okxweb3-app-x402-evmOKX Agent Payments Protocol: x402 EVM mechanism130Apache-2.0Cryptography::CryptocurrenciesWeb programming::HTTP server okxxokx exchange adapter (production-default REST+WS VenueAdapter)14MIT okzokz1,439MIT olaUnofficial Rust client for the Open Lighting Architecture3,719LGPL-2.1-or-laterAPI bindings ola-langOla Language Compiler5,289Apache-2.0 ola-lang-abiOla Smart Contract ABI parsing library10,415MIT ola-parserOla Language Parser3,130Apache-2.0 ola-rsRust client for Open Lighting Architecture RPC DMX control20MITMultimediaNetwork programming olafCodebase context engine for Claude Code157MITCommand line utilitiesDevelopment tools olaf2Convenient CLI authentication using OAuth24,773MITAuthenticationCryptography olagemTyping speed test in the terminal4,873CC0-1.0 olai-cedar-ociCedar policy provider backed by OCI-distributed policy bundles, with generated hydrofoil.policy gRPC types98Apache-2.0API bindingsAuthentication olai-codegenProto-driven code generation for REST handlers, clients, and resource registries280Apache-2.0 olai-datafusion-policyEngine-neutral policy enforcement (access gate + row/column governance) for Apache DataFusion sessions115Apache-2.0AuthenticationDatabase interfaces olai-datafusion-policy-cedarCedar policy enforcement (access gate + row/column governance) for Apache DataFusion sessions101Apache-2.0AuthenticationDatabase interfaces olai-httpCloud provider credential abstraction for AWS, Azure, and GCP1,392Apache-2.0 olai-http-wasmBrowser/WASM HTTP transport for olai-codegen-generated clients (browser-managed session)227Apache-2.0 olai-stack-topologyRole-, placement-, and gateway-aware addressing model for Lakehouse reference-architecture environments137Apache-2.0 olai-storeGeneric, TAO-inspired object and association store with field-role enforcement930Apache-2.0 olai-testleUnified CLI for proto-driven code generation and full-project scaffolding20Apache-2.0 olai-trestleUnified CLI for proto-driven code generation and full-project scaffolding216Apache-2.0 olai-uc-clientAsync Rust client for the Unity Catalog REST API.154Apache-2.0 olai-uc-commonShared types, generated Unity Catalog models, and storage/REST abstractions for the Unity Catalog server and client crates.222Apache-2.0 olai-uc-delta-apiPortable Unity Catalog Delta v1 REST API: wire models, managed-table contract, commit coordinator, and the backend-agnostic…163Apache-2.0 olai-uc-object-storeobject_store implementation backed by Unity Catalog credential vending. Read and write data governed by UC volumes, tables, and…129Apache-2.0Filesystem olai-uc-postgresPostgreSQL-backed resource and secret store for the Unity Catalog server.138Apache-2.0 olai-uc-serverUnity Catalog REST server with pluggable storage backends.100Apache-2.0 olai-uc-sqliteSQLite-backed resource and secret store for the Unity Catalog server.138Apache-2.0 olamHigh-performance CLI for worldbuilders and storytellers to manage complex timelines and chronologies. Built in Rust with…66BSD-3-ClauseCommand line utilities olan_inputA simple Rust input library.59MIT olangCompiler for a simple programming language - ØLang1,506GPL-3.0 olcolc(Optimistic Lock Coupling) rust implementation1,789MIT OR Apache-2.0 olc-pgeA reimplementation of the olcPixelGameEngine in Rust4,755non-standard olc_pixel_game_engineRust bindings for olcPixelGameEngine13,257MIT olc_rust_game_engineA Rust beginner's port of a console game engine9,726MIT old-httpObsolete HTTP library4,786MIT/Apache-2.0 old_icelandic_zoegaOld Icelandic dictionary for Rust. From "A Concise Dictionary of Old Icelandic" by Geir Zoëga3,390MIT old_natThe old version of natls before the re-write1,621MIT old_norse_alphabetOld Norse alphabet constants & sort for Rust1,624MIT old_norwegian_dictionaryOld Norwegian/Norse Dictionary for Rust. The dictionary consists of 40 000+ Old Norse words with Norwegian translations.3,479MIT old_school_gfx_glutin_extExtensions for glutin to initialize & update old school gfx205,478Apache-2.0 old_swedish_dictionaryOld Swedish Dictionary for Rust. From K.F. Söderwall's Medieval Swedish Dictionary4,729MIT oldbayRust client library for SpiceDB that strives to be as ergonomic as possible997MIT oldies-autoAUTO continuation algorithm revival in Rust - Numerical bifurcation analysis195MIT OR Apache-2.0MathematicsScience oldies-brianBrian spiking neural network simulator revival in Rust194MIT OR Apache-2.0MathematicsScience oldies-cliInteractive CLI for OldiesRules - Run legacy simulators with modern UX26MIT OR Apache-2.0MathematicsScience oldies-copasiCOPASI/SBML biochemical network simulator revival in Rust196MIT OR Apache-2.0MathematicsScience oldies-coreCore types for legacy simulator revival - ODE systems, time series, ion channels768MIT OR Apache-2.0MathematicsScience oldies-genesisGENESIS neural simulator revival in Rust - Compartmental modeling from 1988194MIT OR Apache-2.0MathematicsScience oldies-guiModern GUI for OldiesRules - Real-time visualization with egui26MIT OR Apache-2.0MathematicsScience oldies-modeldbModelDB model importer for legacy neural models in Rust25MIT OR Apache-2.0MathematicsScience oldies-nestNEST simulator revival in Rust - Large-scale spiking neural networks194MIT OR Apache-2.0MathematicsScience oldies-neuronNEURON simulator revival in Rust - HOC and NMODL parsers for cable equation modeling194MIT OR Apache-2.0MathematicsScience oldies-xppautXPPAUT bifurcation analysis revival in Rust - Hopf detection, phase portraits195MIT OR Apache-2.0MathematicsScience oldplayText-mode music player for esoteric audio formats (music from C64,Amiga etc) and MP32,581MIT oldrarReader and writer for legacy RAR 1.3/1.4 RE~^ archives77MIT OR Apache-2.0CompressionFilesystem oldschoolAlgorithms for Old School RuneScape.1,765MITGames oldwinA Rust library for easy to compatible with older Windows3,913non-standardOperating systems::Windows APIs oldwin-platform-vc-ltl5-x86-vistaOldWin VC-LTL5 library for Windows Vista2,972non-standard oldwin-platform-vc-ltl5-x86-win10OldWin VC-LTL5 library for Windows 102,649non-standard oldwin-platform-vc-ltl5-x86-win7OldWin VC-LTL5 library for Windows 73,137non-standard oldwin-platform-vc-ltl5-x86-win8OldWin VC-LTL5 library for Windows 82,925non-standard oldwin-platform-vc-ltl5-x86-xp-part1Part1 of OldWin VC-LTL5 library for Windows xp3,208non-standard oldwin-platform-vc-ltl5-x86-xp-part2Part2 of OldWin VC-LTL5 library for Windows xp3,225non-standard oldwin-platform-vc-ltl5-x86_64-vistaOldWin VC-LTL5 library for Windows Vista2,887non-standard oldwin-platform-vc-ltl5-x86_64-win10OldWin VC-LTL5 library for Windows 102,641non-standard oldwin-platform-vc-ltl5-x86_64-win7OldWin VC-LTL5 library for Windows 73,628non-standard oldwin-platform-vc-ltl5-x86_64-win8OldWin VC-LTL5 library for Windows 82,939non-standard oldwin-platform-vc-ltl5-x86_64-xp-part1Part1 of OldWin VC-LTL5 library for Windows XP3,144non-standard oldwin-platform-vc-ltl5-x86_64-xp-part2Part2 of OldWin VC-LTL5 library for Windows XP3,184non-standard oldwin-platform-yy-thunks-x86-vistaPart of the OldWin library for Windows Vista2,626non-standard oldwin-platform-yy-thunks-x86-win10Part of the OldWin library for Windows 102,667non-standard oldwin-platform-yy-thunks-x86-win7Part of the OldWin library for Windows 72,751non-standard oldwin-platform-yy-thunks-x86-win8Part of the OldWin library for Windows 82,435non-standard oldwin-platform-yy-thunks-x86-xpPart of the OldWin library for Windows XP3,145non-standard oldwin-platform-yy-thunks-x86_64-vistaPart of the OldWin library for Windows Vista2,602non-standard oldwin-platform-yy-thunks-x86_64-win10Part of the OldWin library for Windows 102,419non-standard oldwin-platform-yy-thunks-x86_64-win7Part of the OldWin library for Windows 73,197non-standard oldwin-platform-yy-thunks-x86_64-win8Part of the OldWin library for Windows 82,441non-standard oldwin-platform-yy-thunks-x86_64-xpPart of the OldWin library for Windows XP2,908non-standard oldwin-targetsA Rust library for easy to compatible with older Windows2,515non-standardOperating systems::Windows APIs oldwin-vc-ltl5A Rust library for easy to compatible with older Windows2,842non-standardOperating systems::Windows APIs oldwin-yy-thunksA Rust library for easy to compatible with older Windows3,146non-standardOperating systems::Windows APIs oleSimple parser and reader for Microsoft Compound Document File.36,088WTFPLParser implementationsParsing tools ole32-sysContains function definitions for the Windows API library ole32. See winapi for types and constants.695,650MIT oleaut32-sysContains function definitions for the Windows API library oleaut32. See winapi for types and constants.11,426MIT oledOLED driver for embedded-graphics: SSD13571,534MIT/Apache-2.0 oled-notifierSimple statistics for the ODROID-HC4 with OLED device479MIT OR Apache-2.0Embedded development oled_asyncDriver for various OLED display controllers. e.g. SH110x SSD130X works with embedded-graphics9,090MIT OR Apache-2.0Embedded developmentNo standard library oled_shmoledOLED displays don't have backlights but it'd be nice if we could pretend they do on Linux!5,661GPL-3.0Command line utilities olekitA simple command line tool for working with OLE file5,089WTFPLParsing tools oletools_rsRust port of oletools — analysis tools for Microsoft Office files (VBA macros, DDE, OLE objects, RTF exploits)87MITCommand line utilitiesParser implementations olgaFour formats, one engine. PDF, DOCX, XLSX, HTML → Markdown and typed JSON. 15–40× faster than equivalent-quality OSS tools, with…146Apache-2.0Parser implementationsText processing olha[WIP] 奥露哈 占坑1,781MIT oliOpenDAL Command Line Interface77,254Apache-2.0Filesystem oli-serverA simple, blazingly fast AI coding assistant server1,241Apache-2.0 oli-tuiA simple, blazingly fast TUI based AI coding assistant2,626Apache-2.0 olibs724-serviceContoh Library794Apache-2.0 oliframeAdd a simple border to one or more images19,716MITCommand line utilitiesGraphics olimex-stm32-p107BSP crate for the Olimex STM32-P107 prototype board1,778MIT OR Apache-2.0Embedded developmentNo standard library olinA small runtime library to help out programs linked against CommonWA targeting Olin. This will only be useful on the…3,306MIT olingoA minimal ACP (Agent Client Protocol) agent for Zed editor20MITDevelopment tools