All 305,250 crates, alphabetically

officemd_markdownMarkdown renderer for OfficeMD document IR7,728MITText processing officemd_pdfPDF extraction and diagnostics for OfficeMD7,395MITParser implementationsText processing officemd_pptxPPTX extraction for OfficeMD7,052MITParser implementationsText processing officemd_xlsxXLSX extraction for OfficeMD7,047MITParser implementationsText processing offlineWays to make things more or less aligned.107non-standard offline-chess-puzzlesGUI to solve puzzles from the lichess puzzle database21,197MITGames offline-intelligenceHigh-performance library for offline AI inference with context management, memory, and thread-based server architecture395Apache-2.0Network programmingScience offline-license-validatorOffline license validation library using Ed25519 signatures39MITAuthenticationCryptography offline_first_coreHigh-performance LMDB-based local storage library optimized for FFI integration with Flutter and cross-platform applications2,845MITAPI bindingsDatabase interfaces offline_intelligence_cppC++ bindings for Offline Intelligence Library22Apache-2.0 offline_intelligence_javaJava bindings for Offline Intelligence Library22Apache-2.0 offline_intelligence_jsJavaScript bindings for Offline Intelligence Library22Apache-2.0 offline_license_rsOffline license key generator1,529non-standard offline_scrobblerAn utility to scrobble music to Last.fm without playing it online3,524BSD-3-Clause offloadFlexible parallel test runner with pluggable cloud providers2,616MITDevelopment tools::Testing offroad2D offsetting for arc polylines/polygons.3,727MITAlgorithmsData structures offscreen_gl_contextCreation and manipulation of HW accelerated offscreen rendering contexts in multiple platforms. Originally intended for the Servo…336,084MIT / Apache-2.0 offsetGlorified offsets for arbitrary structures11,771Apache-2.0 OR MITData structuresNo standard library offset-allocatorA port of Sebastian Aaltonen's `OffsetAllocator` to Rust3,807,585MIT offset-allocator-2A fork of Patrick Walton's port of Sebastian Aaltonen's `OffsetAllocator` to Rust22MIT offset-polygonAn implementation of the polygon offsetting algorithm using winding numbers5,705MIT/Apache-2.0 offset-vecPacker for Vec and String etc, for all methods index add a offset3,881MITData structuresNo standard library offset-viewsCreate and index offset views of arrays, slices, strings, etc.3,904MITData structuresMemory management offsetscanStandalone native corpus-scale engine for PE parsing, entropy, string extraction, and IOC panels — schema-compatible with…112MITCommand line utilitiesParser implementations offsetterAllows to easily create structs for gamehacking/other process injection work when only some of fields are known59MIT offsettingpolygon offsetting crate1,048non-standard offsidesLayout-sensitive virtual-token lexer adapter for logos + lalrpop609MITDevelopment toolsParser implementations offstageRuns commands against staged Git files.2,882Apache-2.0Command line utilitiesDevelopment tools offwallA simple, CSV-reading OpenFlow controller dedicated to firewall bypassing9,457X11 ofi-libfabric-sysLightweight Rust bindings for Libfabric - a communication API for high-performance parallel and distributed applications.341BSD-2-Clause OR GPL-2.0-onlyAPI bindingsNetwork programming ofi-passA password promptor for pass6,525AGPL-3.0-or-later ofilesIdentify processes that have opened files or sockets24,544BSD-3-ClauseFilesystemOperating systems ofilterOFilter is a fast thread-safe Bloom filter.12,282MIT ofishWeb terminal CLI powered by Warp engine34MIT oflowA 3d engine of Rhine Lab985GPL-3.0-or-later oflow-todoA focused todo CLI56MPL-2.0 ofnnAn open (accessible parameters), feed-forward-only NN (neural net) library to use it in an dynamic and free way in evolutionary…1,590Apache-2.0Science ofpsFramework for efficient processing of optical flows/motion vectors5,936MITAlgorithmsComputer vision ofps-suiteGUI tool for OFPS1,572MITComputer visionGUI ofsOpenDAL File System19,344Apache-2.0Filesystem ofshtGit worktree management tool766MIT oftReserved1,790MIT oftbThe OftLisp bootstrapper.5,106MIT oftlispA compiler and interpreter for OftLisp, in Rust.8,364MIT oftlisp-anfAn OftLisp backend using A-normal form.6,089MIT oftpOpenDAL FTP Server1,504Apache-2.0Filesystem ofutonN-dimensional FFT2,043Apache-2.0/MITScience ofwbasic interfacing with OpenFirmware (former IEEE standard 1275)8,068Apache-2.0API bindingsEmbedded development ofxBindings for OpenFX 1.45,389Apache-2.0 ofx-rsA Rust library for parsing Open Financial Exchange (OFX) documents640MITFinanceParser implementations ofx_sysBindings for OpenFX 1.45,996Apache-2.0 ofxyParse OFX files17,541GPL-3.0-or-later ogA smart file opener acting as a routing gateway.129MITCommand line utilities og-enum-to-stringProvides the `EnumToString` derive macro which implements the methods `as_str()` and `as_dbg()` to enums with no associated values1,836MIT og-imgA small CLI for generating OpenGraph card images for blog posts and static sites86MIT og-libwebp-sysBindings to libwebp (bindgen, static linking)4,168BSD-3-Clause og_fmtThe original `format!`8,633MIT/Apache-2.0 og_image_writerGenerate an Open Graphic Image using a CSS-like API.32,152MITGraphicsRendering ogamA markup language for story writers3,679non-standard oganessonrust container2,655MIT oganesson-rsThe Rust web development scaffold, support actix-web, axum and salvo87MIT ogawa-rsOgawa Alembic Cache file parser.10,217MIT OR Apache-2.0 ogcModels, APIs and Tools for working with Open Geospatial Consortium (OGC) technologies7,851MIT ogc-cql2OGC CQL2 Text + JSON Encoding parser and interpreter in Rust1,173Apache-2.0Data structuresEncoding ogc-rsA Rust wrapper library for devkitPro's libogc2,712MIT ogc-sysRust bindings for devkitPro's libogc3,339MIT ogc-typesTypes for Open Geospatial Consortium (OGC) technologies1,652MIT ogc_3d_tilesA Rust library implementing the OGC 3D Tiles specification: data model, online client (e.g. Google Map Tiles), and region…18MIT OR Apache-2.0 ogcapiOGC API building blocks.3,921MIT OR Apache-2.0Science::Geospatial ogcapi-clientClient to access OGC API Feature and STAC endpoints.3,994MIT OR Apache-2.0Science::Geospatial ogcapi-driversDriver traits and implementations8,299MIT OR Apache-2.0Science::Geospatial ogcapi-processesProcessor trait and implementations1,297MIT OR Apache-2.0Science::Geospatial ogcapi-proxyOGC API proxy service153LGPL-3.0-or-later ogcapi-servicesServer implementation of several OGC API Standards.6,198MIT OR Apache-2.0Science::Geospatial ogcapi-typesTypes as defined by various OGC API Standards.38,930MIT OR Apache-2.0Science::Geospatial ogdf-sysUnsafe Rust bindings to the OGDF graph drawing library built with autocxx.177GPL-2.0-only OR GPL-3.0-only ogdoadClifford algebras (with nilpotents) over the field-like subclasses of combinatorial games: nimbers, surreals, surcomplex.16AGPL-3.0-or-laterMathematicsScience ogeniusLightweight AI inference server using HuggingFace models directly - a simpler alternative to Ollama39MITAlgorithmsAsynchronous ogentic-auditogentic-audit CLI — verify, inspect, and export tamper-evident audit logs15Apache-2.0CryptographyData structures ogentic-audit-coreHMAC-SHA256 chained, append-only audit log — core library (writer, reader, verifier, key handle)20Apache-2.0CryptographyData structures ogentic-audit-keychainOptional OS-keychain key source for ogentic-audit (macOS Keychain, Linux Secret Service, Windows Credential Manager)18Apache-2.0CryptographyData structures ogexA regex engine with unified syntax for named groups and backreferences115MPL-2.0Parsing toolsText processing ogex-cliCLI tool for Ogex regex engine39MIT oggOgg container decoder and encoder written in pure Rust8,512,048BSD-3-Clause ogg-batch-speedupA library for batch processing and speeding up OGG audio files663MITMultimedia::Audio ogg-opusA decoder/encoder for Ogg Opus12,775MIT ogg-opus-wasmA decoder/encoder for Ogg Opus for WASM3,365MIT ogg-sysFFI for libogg, the media container.181,974MIT ogg-tableogg-vorbis reader with fast random accesses2,148MIT/Apache-2.0 ogg_metadataMetadata parser for various Ogg codecs56,769MIT/Apache-2.0 ogg_next_sysUpdated low-level FFI bindings for the upstream libogg C library170,144BSD-3-ClauseExternal FFI bindingsMultimedia ogg_pagerA simple OGG page reader1,344,445MIT OR Apache-2.0MultimediaMultimedia::Audio ogg_vorbis_reflibogg and libvorbis wrappers for pure_vorbis reference tests6,023MIT oggmetaA crate for reading and writing ogg metadata2,413MIT oggmuxA remuxing kit for combined Ogg Vorbis streams1,360ISC oggopus-embeddedParsing of oggopus files on embedded device flash1,066BSD-3-ClauseEmbedded developmentMultimedia::Audio oggvorbismetaRead and write metadata from ogg vorbis audio files40,545MITMultimedia::Audio oghamLLM context engineering SDK: reversible compression, agent-aware rules, token budgets154Apache-2.0CompressionText processing ogham-coreCore traits and types for the Ogham LLM context engineering SDK174Apache-2.0CompressionText processing ogham-serverEmbeddable HTTP server for the Ogham context engineering SDK34Apache-2.0CompressionText processing oghmaUnified AI memory layer — aggregate context across coding tools44MITCommand line utilitiesDevelopment tools ogitoA lightweight CLI tool for managing and generating projects from custom templates11,584MITCommand line utilities ogkcli tool for open.go.kr15,238non-standard ogl33Deprecated, use the `gl33` crate instead.33,378Zlib ogleExecute a command periodically, showing the output only when it changes29,906MITCommand line utilities oglensTools for viewing OGP3,818MIT oglo-cpu-asmOfficial assembler implementation for Oglo CPU.7,100MIT ogmaOgma DSL builder8,234MIT OR Apache-2.0Parsing tools ogma-libsOgma DSL builder libs9,770MIT OR Apache-2.0 ogma-macrosOgma DSL builder libs7,830MIT OR Apache-2.0 ogmarkupA markup language for story writers1,688non-standard ogmios-clientRust client/SDK for Cardano Ogmios63MITAPI bindingsNetwork programming ogmoSerde definitions for Ogmo level editor files3,010Apache-2.0 ogmo3A Rust crate for reading and writing Ogmo Editor 3 projects and levels9,327MITGame development ogn-aprs-parserLibrary to parse OGN APRS messages124MIT ogn-parserOGN message parser for Rust8,326MIT/Apache-2.0 ogn-parser-pyo3OGN message parser for Python5,337MIT/Apache-2.0 ognen-add-oneLibrary that export a function that adds 1 to the integer passed1,496MIT ognibuildDetect and run any build system34,455GPL-2.0+ ognlibSome code that is written to practice Rust55,921MIT OR Apache-2.0 ogopogoOnly time will tell ;)1,336BSD-3-Clause ogp-license-textcontains the LICENSE_TEXT for the OGP (Open Generative Protection) License767MIT ograclike cargo, but backwards9,138AGPL-3.0-or-later ograph-rsA simple command-line utility to extract and print OpenGraph metadata from a given URL.4,218GPL-3.0-or-laterCommand line utilities ogreA rusty, dual-wielding Quake and Half-Life texture WAD parser.10,117MITAsynchronousGame development ogre-config-meldMelds configs from files, env, and CLI into a clean, validated strong typed 'effective configuration'.3,248UnlicenseCommand-line interfaceConfiguration ogre-stream-ext`futures` shortcuts with ergonomic extensions to unlock the full power of Streams in Rust3,510UnlicenseAlgorithmsAsynchronous ogre-watchdogPortable watchdog for Rust services & jobs to avoid hangups even without a supervisor1,273UnlicenseConfigurationEmbedded development ogrepTool for searching in indentation-structured texts.6,449MITCommand line utilitiesText processing ogrimXML builder macro letting you write literal XML inside your Rust code (similar to `serde_json::json!`). Features interpolation,…4,534MIT/Apache-2.0Data structuresEncoding ogrim-macrosHelper crate for `ogrim`. Please see the docs of `ogrim` for more information. Do not use this crate directly, API stability is…6,062MIT/Apache-2.0 ogsThe library for solving octal games.6,245LGPL-3.0-or-laterAlgorithmsGame development ogsolveThe program for solving octal games.6,358GPL-3.0-or-laterAlgorithmsGame development oguardOGuard1,303MIT oguiBrand new Rust GUI library. Still in development not ready for use at all but if you want to stay up to date on progress check…1,295Apache-2.0 ogumA meta-framework for building web servers in Rust, where any frontend architecture is welcome.17MITWeb programmingWeb programming::HTTP server ogunSpatial layout generation via sequential logit dynamics on potential games208MITAlgorithmsGame development ogurpchikA transport-agnostic RPC framework for stream and memory-based communication. Built with high-performance primitives to deliver…21MIT ogymComposable, type-safe reinforcement learning environments for Rust15MITAlgorithmsScience ohA collections of functions for highly efficient programmers.1,915MIT oh-my-agent-skillsA beautiful terminal-based skill manager for Claude AI coding assistants144MITCommand line utilitiesGUI oh-my-lupinConvert text to braille art using any font53MITCommand line utilities oh-my-todoLocal-first terminal task manager with a mouse-first TUI and CLI.46MITCommand line utilities oh-napi-srcOpenHarmony native api rust binding.3,344MIT oh-napi-sysOpenHarmony native api rust binding.3,493MIT oh-ndk-sysOpenHarmony native api rust binding.3,834MIT oh-snapA thread-safe, owned, heap-allocated array which can be split and merged efficiently, i.e., without moves or memory…22,462non-standard oh-watchoh-watch is a Git-based file change watcher and auto-reload tool. It periodically checks for file changes using Git status…46MITDevelopment tools oh2All in one shell tool2,473GPL-3.0 oh_libsoh libraries41MIT oh_my_guessA simple guessing game, made while following «The Rust Book»2,800MIT oh_my_panicfancy panic handler30MIT OR Apache-2.0 oh_my_tomlAwesome TOML configuration derive macro409MIT OR Apache-2.0 oh_my_toml_macroInternal support for deriving the OhMyToml trait Use https://crates.io/crates/oh_my_toml in your code606MIT OR Apache-2.0 ohaOhayou(おはよう), HTTP load generator, inspired by rakyll/hey with tui animation.140,731MITCommand line utilitiesDevelopment tools::Profiling ohairsA basic library for interacting with the OpenAI API.1,552MIT oharness-bench-sweSWE-bench (lite + full) adapter for open-harness26MIT OR Apache-2.0Development tools::TestingScience oharness-budgetBudget middleware (token, step, cost, time) for open-harness54MIT OR Apache-2.0API bindingsDevelopment tools oharness-coreCore types, event schema, and context-plumbing traits for open-harness316MIT OR Apache-2.0Development toolsScience oharness-criticCritic / Reflector traits, composition, and shipped impls for open-harness147MIT OR Apache-2.0API bindings oharness-evalBenchmark runner + TaskEvaluator re-export for open-harness55MIT OR Apache-2.0Development tools::TestingScience oharness-llmLlm trait + middleware helper traits for open-harness270MIT OR Apache-2.0API bindingsAsynchronous oharness-loopAgent, Loop trait, ReactLoop, ConversationLoop, and run_reflexion for open-harness120MIT OR Apache-2.0API bindingsAsynchronous oharness-memoryPluggable memory/context strategies for open-harness148MIT OR Apache-2.0Development tools oharness-providersLLM provider adapters (Anthropic, OpenAI, OpenRouter, Ollama, vLLM) for open-harness61MIT OR Apache-2.0API bindingsAsynchronous oharness-toolsToolSet trait and bundled tool kits (bash, filesystem) for open-harness177MIT OR Apache-2.0API bindingsDevelopment tools oharness-traceEvent sinks, trajectory JSONL writer/reader, and ReplayLlm for open-harness146MIT OR Apache-2.0AsynchronousDevelopment tools::Debugging ohashA simple media hasher based on code from the opensubtitles.org forum1,571MIT ohaudio-sysRaw Bindings to the audio module of OpenHarmony56Apache-2.0 ohcrabFix your command line magically28,359MITCommand line utilities ohea-lockRust library for controlling Ohea Lock BLE smart locks34GPL-3.0Embedded developmentHardware support ohiSoon!1,625MIT ohioohio360MIT ohkamiA performant, declarative, and runtime-flexible web framework for Rust83,370MITAsynchronousNetwork programming ohkami-tracing-reqohkami middleware to trace requests77BSL-1.0AsynchronousNetwork programming ohkami_libinternal library for Ohkami - A performant, declarative, and runtime-flexible web framework for Rust20,125MITAsynchronousNetwork programming ohkami_macrosproc macros for Ohkami - A performant, declarative, and runtime-flexible web framework for Rust29,764MITAsynchronousNetwork programming ohkami_openapiOpenAPI types for Ohkami - A performant, declarative, and runtime-flexible web framework for Rust6,693MITAsynchronousNetwork programming ohlcvData collector library for fetching, analyzing, predicting and charting time series data (OHLC) of cryptocurrencies from various…2,479MIT OR Apache-2.0Cryptography::CryptocurrenciesFinance ohlcv-aiAI agents focused on processing ohlcv data structures.106Apache-2.0 ohlcv-ctlData collector library for fetching, analyzing, predicting and charting time series data (OHLC) of cryptocurrencies from various…2,203MIT OR Apache-2.0Command line utilitiesCryptography::Cryptocurrencies ohmHigh performance 2D graphics library1,955MIT OR Apache-2.0 ohmersA library for retrieving and storing objects in a Redis server4,542non-standard ohmsElectrical units library for embedded targets14,993MITEmbedded developmentNo standard library ohms-adaptqNOVAQ: Normalized Outlier-Vector Additive Quantization - Democratic 93-100x LLM compression with 99%+ accuracy retention. No…4,847MITAlgorithmsCompression ohmyaliasA simple tool for manage your aliasses2,601MITCommand-line interfaceCommand line utilities ohmydbA light-weight local json database11,217MIT OR Apache-2.0 ohmysmtpAn OhMySMTP client2,873MITAPI bindingsEmail ohmystockshow stock price8,749MIT ohnoHigh-quality Rust error handling.57,212MITData structures ohno-helperA utility program to find out which packages were updated in the Arch repositories, and when1,467AGPL-3.0-or-later ohno_macrosMacros for the ohno crate.55,512MITData structures ohnomoreTransformations for TüBa-D/Z lemmas15,345MIT OR Apache-2.0 ohnomore-utilsTransformation utilities for TüBa-D/Z lemmas1,559MIT OR Apache-2.0 ohol_public_dataClient and data format for One Hour One Life's public data1,770MPL-2.0Data structuresEncoding ohos-ability-access-control-bindingOpenHarmony's ability-access-control binding for rust1,263MIT OR Apache-2.0 ohos-ability-access-control-sysOpenHarmony's ability-access-control binding for rust1,551MIT OR Apache-2.0 ohos-abilitykit-sysBindings to the Abilitykit of OpenHarmony136,966Apache-2.0 ohos-accessibility-sysOpenHarmony's accessibility binding for rust164MIT OR Apache-2.0 ohos-accesstoken-sysRaw bindings to the AbilityAccessControl (AccessToken) NDK of OpenHarmony78Apache-2.0