All 305,250 crates, alphabetically

odd-boxa dead simple reverse proxy server and web server32,256non-standard odd_is_oddA very (not) safe library to check if a number is odd. Based on cve-rs.6,708Unlicense oddioLightweight game audio library53,022MIT OR Apache-2.0Game developmentMultimedia::Audio odditsOddits numeric system1,590MIT OR Apache-2.0 oddity-rtsp-protocolRTSP protocol implementation for oddity-rtsp-server.1,706MIT OR Apache-2.0 oddity-rtsp-serverRust RTSP server built on top of ffmpeg.1,231MIT OR Apache-2.0 oddity-sdp-protocolSDP protocol implementation for oddity-rtsp-server.1,509MIT OR Apache-2.0 oddonkeyA dead-simple Ollama wrapper – auto-installs Ollama & models, then lets you prompt in two lines of code.84MITAPI bindingsAsynchronous oddsOdds and ends — collection miscellania. Extra functionality for slices (`.find()`, `RevSlice`), strings and other things. Things…3,760,141MIT/Apache-2.0No standard library odds-apiOfficial Rust SDK for odds-api.net19MITAPI bindingsWeb programming::HTTP client odds-rueckA smarter cd. You know where you want to go. Now your shell does too.85MITCommand line utilities odds_converterA fast, accurate Rust library for converting between American, Decimal, and Fractional betting odds formats544MITMathematicsParser implementations oddsenseAgent-native CLI for prediction market intelligence — sentiment analysis, divergence detection, and cross-platform arbitrage45MITCommand line utilitiesFinance oddsidizerRust library for converting betting odds between American, Decimal and Fractional formats1,166MIT OR Apache-2.0MathematicsValue formatting odeVarious solvers for ODEs4,918MIT ode-baseODE Open Dynamics Engine bindings base for Rust7,838MITExternal FFI bindingsRendering ode-rsODE Open Dynamics Engine for Rust13,293MITExternal FFI bindingsRendering ode-rs-0000OYK sample for ODE (Open Dynamics Engine)8,846MITExternal FFI bindingsRendering ode_integrateCollection of numerical ODE Solvers written in generics and thus applicable in many scenarios.9,095MPL-2.0MathematicsScience ode_solversNumerical methods to solve ordinary differential equations (ODEs) in Rust.933,128Apache-2.0Science odebugSimple and flexible debug logging utility that allows simple and practical logging to a text file especially during proc-macro…744non-standardDevelopment toolsDevelopment tools::Debugging odem-rsObject-based Discrete-Event Modelling in Rust using async/await1,909MITAsynchronousNo standard library::No dynamic allocation odem-rs-coreCore components of the odem-rs simulation framework2,640MITAsynchronousNo standard library::No dynamic allocation odem-rs-metaLanguage extensions for the odem-rs simulation framework2,838MITAsynchronousNo standard library::No dynamic allocation odem-rs-syncModel-time synchronization facilities of the odem-rs simulation framework2,186MITAsynchronousNo standard library::No dynamic allocation odem-rs-utilModel elements and statistical tooling for the odem-rs simulation framework2,137MITAsynchronousNo standard library::No dynamic allocation odenA framework for building efficient web applications.1,615MIT odesignodesign is an optimal design of experiments library written in pure rust.5,396MIT OR Apache-2.0Science odesign-deriveodesign is an optimal design of experiments library written in pure rust.5,706MIT OR Apache-2.0Science odesli-rsUnofficial library to communicate with Odesli API in an async manner11,431MITAPI bindings odesolverLibrary for solving ODE's.7,654MIT OR Apache-2.0 odgi-ffiA safe, ergonomic Rust wrapper for the odgi pangenome graph tool.2,628MITAPI bindingsExternal FFI bindings odhtA Rust crate for hash tables that can be mapped from disk into memory without the need for up-front decoding.3,737,953MIT OR Apache-2.0 odictA blazingly-fast dictionary file format for human languages8,158MIT odiliaBuilding a better screen reader for the Linux desktop, one step at a time.5,067GPL-3.0-onlyAccessibility odilia-cacheA caching layer for the Odilia screen reader.3,545GPL-3.0-onlyAccessibility odilia-commonCommon algorithms and data structures shared by multiple Odilia screen reader crates.9,329GPL-3.0-onlyAccessibility odilia-inputInput subsystem for the Odilia screen reader.4,421GPL-3.0-onlyAccessibility odilia-ttsA pure-Rust, fully-safe, asyncronous speech dispatcher client.6,913GPL-3.0-onlyAccessibilityAPI bindings odimOne Dimensional FDM.20Apache-2.0Science odin👁️ Relentless seeker of knowledge3,206CC0-1.0 odin-cliWindows developer workstation snapshot, restore, sync, and diagnostics CLI37MITCommand line utilitiesDevelopment tools odin-coreODIN (Open Data Interchange Notation) parser, serializer, validator, and transform engine254Apache-2.0Data structuresEncoding odin-protocolThe world's first standardized AI-to-AI communication infrastructure for Rust - 100% functional with 57K+ msgs/sec throughput433MITAPI bindingsAsynchronous odin-unionDependency-free shorthand for Rust enums whose variants wrap same-named types18GPL-3.0-or-laterRust patterns odin-vsmManage your Valheim dedicated server with confidence — a fast, single-binary Rust CLI for Docker, mods, backups, and world sync.20MITCommand line utilitiesGames odin_palaceParser and analyzer for bank statements in the 1CClientBankExchange format326MITCommand line utilitiesFinance odirOllama Downloader in Rust (ODIR), pronounced oh dear, is a command-line tool written in Rust for downloading models from Ollama.59MIT odirectMinimal cross-platform direct I/O abstraction for Rust.88MITFilesystem odisFormal Concept Analysis algorithms and data structures308AGPL-3.0-onlyAlgorithmsData structures odjitterDisaggregate origin/destination data from zones to points253Apache-2.0Command line utilitiesScience odlflexible download library and CLI intended to be fast, reliable, and easy to use.1,123MITCommand line utilities odmOpenRetail Data Migrator Utility1,678MIT odm-migration-utilityOpenRetail Data Migrator Utility21,659MIT odnelazmA mzalendo.com web scaraper and parser270MITCommand line utilitiesParser implementations odnelazm-cliCommand Line Interface for interacting with scraped data from odnelazm108MITCommand line utilitiesParser implementations odnelazm-mcpA MCP server that allows LLM clients to interact with Kenyan parliementary sittings data92MITCommand line utilitiesParser implementations odoh-client-rsRust client for Oblivious DNS over HTTPS (ODoH) protocol draft-0312,718BSD-2-ClauseCryptographyNetwork programming odoh-rsRust implementation of the Oblivious DNS over HTTPS (ODoH) protocol version 163,293BSD-2-ClauseCryptographyNetwork programming odoidDeterministic mixed-radix ID encoding — maps integers to 6, 7, or 8-character alphanumeric strings. Ambiguous characters I, L, O…58MITData structuresEncoding odometerA workspace version management tool that keeps package versions synchronized across projects3,269MITCommand line utilitiesDevelopment tools odooOdoo21MITCommand line utilities odoo-apiType-safe and full-coverage implementation of the Odoo JSON-RPC API, including ORM and Web methods. Supports sessioning,…13,941MIT OR Apache-2.0API bindings odoo-api-macrosMacros for the `odoo-api` crate8,714MIT OR Apache-2.0 odoo-clientCLI tool to interact with Odoo instances via JSON-2 API72MITCommand line utilities odoo-lspLanguage server for Odoo Python/JS/XML15,794MITDevelopment tools odoorsOdoo library6,421MIT odos-sdkRust SDK for Odos16,322Apache-2.0API bindingsFinance odotReverse todo: Write down things that you've done.3,254MIT odpic-sysBindings to Oracle Database Programming Interface for C (ODPI-C).1,978,256UPL-1.0/Apache-2.0Database interfacesExternal FFI bindings odraSmart contracts for Casper Network.37,883MIT odra-bddBDD helper for Odra smart contracts.2,883MIT odra-buildFunction used in build.rs files of Odra projects19,266MIT odra-casper-backendOdra backend bindings for the Casper Blockchain.14,951MITWebAssembly odra-casper-clientA client library and binary for interacting with the Casper network3,284Apache-2.0 odra-casper-codegenOdra codegen utility to generate Casper contracts.12,507MITWebAssembly odra-casper-livenetOdra Casper library for live Casper blockchain interaction.11,263MITWebAssembly odra-casper-livenet-envOdra's backend for interacting with the Casper Node.18,314MIT odra-casper-rpc-clientRPC Client for the Casper Node.18,617MIT odra-casper-sharedUtilites uses by the Odra Casper-related crates.17,487MITWebAssembly odra-casper-test-envOdra test environment for the Casper Blockchain.14,893MITWebAssembly odra-casper-test-vmOdra test environment for the Casper Blockchain.19,620MIT odra-casper-typesTypes used in the Casper enviorment.12,610MITWebAssembly odra-casper-wasm-envOdra Casper WASM backend.19,876MIT odra-cliOdra CLI - Command Line Interface for Odra smart contracts.4,656MIT odra-codegenCode generators for Odra IR.16,827MITWebAssembly odra-coreCore of the Odra Framework25,257MIT odra-irData structures for Odra IR (intermediate representation).17,282MITWebAssembly odra-macrosMacros for Odra-based smart contracts.22,479MIT odra-mock-vmOdra's virtual machine for running smart contracts.16,721MITWebAssembly odra-mock-vm-typesTypes used in Odra's virtual machine.12,150MITWebAssembly odra-modulesCollection of reusable Odra modules.29,104MIT odra-proc-macrosProc macros for Odra-based smart contracts.16,256MITWebAssembly odra-schemaGenerates Casper Contract Schema from Odra contracts.20,299MIT odra-testTest backend for the Odra smart contracts.19,537MIT odra-test-env-wrapperOdra's wrapper for test virtual machines delivered as shared object files.2,927MITWebAssembly odra-typesThis crate exposes blockchain-agnostic types used along all the Odra crates.21,800MITWebAssembly odra-utilsUtilites used by the Odra crates.21,848MITWebAssembly odra-vmOdra Virtual Machine for testing and development.19,606MIT odra-wasm-clientWasm client207MIT odra-wasm-client-builderWasm client197MIT odrive-cansimpleCANSimple master library for ODrive motor controllers.9,234MIT odrive-messagesUnofficial ODrive CAN bus message encoding and decoding351MITEncodingScience::Robotics odrive-rsA library for controlling the ODrive motor controllers.8,848MIT OR Apache-2.0 odrive_canA no_std driver for ODrive compatible motor controllers over CAN1,207MIT OR Apache-2.0Embedded developmentHardware support odrlAn implementation of the Open Digital Rights Language (ODRL) in Rust942Apache-2.0 odsCLI for Open Data Schema1,418MITCommand line utilities ods2sqlCreate a sqlite3 database from an ODS spreadsheet.8,876AGPL-3.0-or-laterCommand line utilities odsekLazy, pull-based composition of mathematical interval sets with open/closed endpoints, no_std-compatible.14MIT OR Apache-2.0Data structuresMathematics odtgenFlat ODT writer70MITText processing odxReserved name stub crate. No functionality is provided.432MIT OR Apache-2.0 odx-hyperclockReserved name stub crate. No functionality is provided. NOTICE: If this stub is older than 1 month old and no progress has been…410MIT OR Apache-2.0 odx-knifeReserved name stub crate. No functionality is provided. NOTICE: If this stub is older than 1 month old and no progress has been…412MIT OR Apache-2.0 odx-stderrReserved name stub crate. No functionality is provided.409MIT OR Apache-2.0 odynReproducible vendoring for Odin. Not a package manager.131Apache-2.0Command line utilitiesDevelopment tools odysseusI'm no longer using this crate name, contact me on Discord to get access to it. (Paradoxical#2936)2,441MIT odysseyReserved for impending use. If a 0.1 release is not made by January 1, 2026, contact the owner to request transfer free of charge.691MIT OR Apache-2.0 odyssey-macrosReserved for impending use. If a 0.1 release is not made by January 1, 2026, contact the owner to request transfer free of charge.696MIT OR Apache-2.0 oeOE is a macro to make errors easy and expressive1,933MIT OR Apache-2.0Development tools oeb-rsoeb电子书解析库829GPL-3.0 oecliCLI tool for handling booilerplate and operations within Overengineered ecosystem.2,897MIT oefpilOptimum Estimate of Function Parameters by Iterated Linearization (OEFPIL): Algorithm for nonlinear function fitting to data with…3,310MIT OR Apache-2.0AlgorithmsAPI bindings oefpil-sysRust FFI bindings to statically linked C/Fortran library OEFPIL3,576MIT OR Apache-2.0AlgorithmsExternal FFI bindings oefsMy playground for learning Rust765Apache-2.0 oeisoeis47MIT oeis-tuiA TUI and CLI for browsing the On-Line Encyclopedia of Integer Sequences (OEIS) in the terminal.1,559MITCommand line utilities oeis-utilsParse OEIS database archives7,577MITAPI bindingsEncoding oem_cpRust library that handles OEM code pages (e.g. CP{437,737,850}) for single byte character sets2,228,405MITEncoding oembedSimple generic implementation of oEmbed 1.01,889MITAPI bindingsWeb programming oembed-rsRetrieve oEmbed data from a URL18,144MIT oer_conversion_ratesA minimalist terminal currency convertor6,078GPL-3.0-or-laterCommand line utilitiesFinance oer_libRust library for matching organizations and related events in free-form text22MIT oerstedLightning-fast magnetic fields calculations81MIT OR Apache-2.0 ofmemory-mapped registers for amd642,1150BSD of-car-readerReaders and index primitives for Old Faithful Solana CAR archives154MIT of-slot-rangesBuild and read Old Faithful slot-to-CAR range indexes40MIT of-vscode-project-generator-rsopenFrameworks VSCode Project Generator (for static analysis only)2,341WTFPL OR 0BSD of_adaptersProvider adapters and market-data abstraction for the Orderflow engine276MITAPI bindingsFinance of_coreCore domain models and analytics primitives for the Orderflow engine475MITAlgorithmsFinance of_dn_parserParser (and formatter) for OpenFinance Brasil standard distinguished names13,384MITAuthenticationEncoding of_executionExecution routing, adapter contracts, simulated execution, and recovery hooks for Orderflow67MITFinanceSimulation of_execution_adaptersExecution adapter scaffolds for Orderflow venues and broker protocols16MITAPI bindingsFinance of_execution_coreLow-latency execution domain model, order state machine, and risk primitives for Orderflow83MITAlgorithmsFinance of_ffi_cC ABI facade for the Orderflow runtime97MITAPI bindingsFinance of_persistPersistence and retention utilities for Orderflow normalized data255MITDatabase implementationsFinance of_runtimeRuntime orchestration and health supervision for the Orderflow engine185MITFinanceSimulation of_signalsSignal modules and gating policy for the Orderflow engine256MITAlgorithmsFinance ofanReserved for WIP crate.1,563MIT ofbOutput Feedback (OFB) block cipher mode of operation8,281,835MIT OR Apache-2.0CryptographyNo standard library ofcA command-line Ollama Function Caller1,613MIT ofcliCli tool for uploading files to onefile.clowzed.ru1,525MIT ofCourseOutput a string repeatedly until killed.5,546MITCommand line utilities ofcp_dataData for ofcp.48,384MIT ofdA ofd lib.1,705MIT ofd-coreOFD (Open Fixed-layout Document, GB/T 33190-2016) parsing, validation and rendering library44MITEncodingParser implementations ofd-rsOFD (Open Fixed-layout Document, GB/T 33190-2016) library for Rust135Apache-2.0EncodingParser implementations ofdbOpenFairDB1,703AGPL-3.0 ofdb-boundarySerializable, anemic data structures for accessing the OpenFairDB API in a type-safe manner.18,560MIT/Apache-2.0 ofdb-entitiesReusable, agnostic domain entities for OpenFairDB.11,121MIT/Apache-2.0 ofdb-seedA seed library for building OpenFairDB based web applications6,913MIT/Apache-2.0 ofdsdkStrongly typed OFD SDK for Rust121MIT OR Apache-2.0Parser implementations off-grid-primitivesCore data structures and logic for the Off-Grid exchange: spot market (L1/L2/L3), order books, matching engine, and account…23MITData structuresFinance off-rsA library for parsing .off mesh files8,011MIT OR Apache-2.0Parser implementationsParsing tools off-sideUse off-side syntax (indent instead of braces, like in Python) to write Rust!3,153Apache-2.0 off64Read from and write to byte slices with u64 offsets954,487Apache-2.0 off_blockwayCustom library for the OffBlockway project. I wouldn't use this if I were you :(12,611MIT offbookPlaintext screenplay markup parser64AGPL-3.0-or-later offchain-utilsConfidential API Off-Chain Worker1,311MIT offchainlabsarbitrum1,550non-standard offcodeOffline AI coding assistant powered by Ollama206MIT offer-cellA rust library that defines a pattern for providing a reference to stored data, and optionally transferring ownership of that…3,198MIT offeringsA unified GUI interface for easy desktop app management designed for Lilith Linux69MIT offflixA simple application to auto manage series on your local storage.26,982MIT officeSee 'calamine' crate. Contact me for 'office' ownership23,565MIT office-automationWindows CLI tool that automates PowerPoint and Excel via COM58MITCommand line utilities office-convert-clientClient library for interacting with office-convert-server7,261MIT office-convert-lambda-clientClient library for interacting with office-convert-lambda894MIT office-convert-serverHTTP server for converting office file formats to PDFs4,658MIT office-converterUniversal Office Converter - Convert between any document format supported by LibreOffice/OpenOffice.1,961MIT office-cryptoPure Rust library to decrypt password-protected MS Office files62,590MITParsing tools office-hoursSimple library to only execute code within office hours2,741MIT office-jobsGame theory, applied to modern work; or: how to live while working an office job10,008Unlicense office-rsA Rust library for reading and writing XML Office files768MIT OR Apache-2.0 office-to-pdfConvert office files to pdf files4,892MIT office-toolkitA Rust library to create, read, and modify Microsoft Office documents (Word/Excel/PowerPoint) in the modern Open XML (OOXML)…14MITEncodingParser implementations office2pdfConvert DOCX, XLSX, and PPTX files to PDF using pure Rust4,699Apache-2.0Text processing office2pdf-cliCLI tool to convert DOCX, XLSX, and PPTX files to PDF482Apache-2.0Command line utilities office_oxideThe fastest Office document processing library — DOCX, XLSX, PPTX, DOC, XLS, PPT279,963MIT OR Apache-2.0Parsing toolsText processing office_oxide_cliCLI for office-oxide — the fastest Office document toolkit. Extract text, convert to markdown, dump IR, and inspect…161MIT OR Apache-2.0Command line utilitiesText processing office_oxide_mcpMCP server for Office document extraction — gives Claude, Cursor, and AI assistants the ability to read…300MIT OR Apache-2.0Command line utilitiesText processing officecliCommand-line OOXML document automation using OfficeCLI Rust core41Apache-2.0Command line utilitiesText processing officecli-coreRust implementation of OfficeCLI OOXML automation primitives45Apache-2.0Parsing toolsText processing officecli-mcpMCP stdio adapter for OfficeCLI Rust OOXML automation26Apache-2.0Command line utilities officecli-serverHTTP service for OfficeCLI Rust OOXML automation25Apache-2.0Web programming::HTTP server officedaysA CLI tool for hybrid workers to track and project required office attendance for each quarter2,898MITCommand line utilities officemd_cliCLI for OfficeMD document extraction and markdown rendering191MITCommand line utilitiesText processing officemd_coreShared IR, package reading, and relationships for OfficeMD7,798MITData structuresParser implementations officemd_csvCSV extraction aligned with OfficeMD markdown output7,041MITParser implementationsText processing officemd_doclingDocling JSON conversion for OfficeMD document IR164MITText processing officemd_docxDOCX extraction for OfficeMD7,064MITParser implementationsText processing