Source: doc.rust-lang.org (std library reference) · crates.io database dump, 2026-07-25 (crates directory)Contact
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All 305,250 crates, alphabetically

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

ovunto-security-macrosThis are some macros for ovunto-security1,896MIT owOw calls a function with self.1,879MIT ow_blob_codecConvert xml files to EIP4844 BLOB2,880MIT ow_wallet_adapterOriginal Works EVM wallet adapter library with KMS integration631MIT OR Apache-2.0 owa4xIdiomatic wrapper around the owa4x-sys crate32,409MIT owa4x-sysLow-level bindings to the C library provided to use functionality on the OWA4x embedded computer12,389MIT owa5x-sysLow-level bindings to the C library provided to use functionality on the OWA5x embedded computer2,258MIT owapiOverwatch JSON API bindings for Rust5,269MITAPI bindings owasmStandard library for oracle scripts on BandChain14,733Apache-2.0 owasm-abiRust WebAssembly Contracts Abi9,928MIT/Apache-2.0Embedded developmentNo standard library owasm-abi-deriveRust WebAssembly Contracts Abi (derive macros)14,855MIT/Apache-2.0Embedded developmentNo standard library owasm-abi-utilsUtilities for Oasis macros1,817MIT/Apache-2.0 owasm-allocParity WebAssembly standard library internal allocator1,894MIT/Apache-2.0Embedded developmentNo standard library owasm-cryptoCryoto functions for Oracle script6,268Apache-2.0 owasm-debugLogging utility ontop of owasm-ethereum3,282MIT owasm-ethereumExterns library to interact with Ethereum-like network9,984MIT/Apache-2.0Embedded developmentNo standard library owasm-kitStandard library for oracle scripts on BandChain12,291Apache-2.0 owasm-libcParity WebAssembly standard library libc bindings1,966MIT/Apache-2.0Embedded developmentNo standard library owasm-stdA standard library for interacting with the Oasis platform.16,579MIT/Apache-2.0Operating systemsWebAssembly owasm-utilsCollection of command-line utilities and corresponding Rust api for producing owasm-compatible executables4,754MIT/Apache-2.0 owasm-utils-cliCollection of command-line utilities and corresponding Rust API for producing owasm-compatible executables5,218MIT/Apache-2.0 owasm-vmOracle script VM runtime8,234Apache-2.0 owasm2TODO3,126Apache-2.0 owasp-headersbest-practice OWASP HTTP response headers ( https://owasp.org/www-project-secure-headers/ ) for Rust5,574MITWeb programmingWeb programming::HTTP server owasp_password_validatorA password validator based on OWASP guidelines1,333MIT owb-coreCore drivers and utilities for the Omni‑Wheel Bot (no‑std embedded robotics)461MIT OR Apache-2.0Embedded developmentNo standard library owcryptRust version for BlockTree's owcrypt library4,519GPL-3.0 owens-ml-parserA lightweight parser for a lightweight markup language.1,381MIT owens-tOwen's T Function and Bivariate Normal CDF computations6,044MIT OR Apache-2.0Mathematics owfsRust API for OWFS (1-Wire file system)13,268MIT owiBindings to the C symbolic API of the owi bug finding tool1,771AGPL-3.0-only owidSimple cryptographically auditable identifiers and processors implemented in Rust.89Apache-2.0CryptographyEncoding owiwiA library to initialize tracing with opentelemetry43MPL-2.0Development tools::DebuggingDevelopment tools::Profiling owlROP-gadget finder in Rust5,176Apache-2.0 owl-cryptoCryptography helper library5,159GPL-3.0-or-later owl-dl-cliCommand-line interface for the rustdl OWL DL reasoner81Apache-2.0 OR MITData structuresScience owl-dl-coreCore IR, normalization, and shared utilities for the rustdl OWL DL reasoner241Apache-2.0 OR MITData structuresScience owl-dl-datatypesDatatype reasoners (xsd:boolean, xsd:integer, xsd:string, ...) for rustdl196Apache-2.0 OR MITData structuresScience owl-dl-reasonerHybrid saturation+tableau OWL DL reasoner — public API for rustdl133Apache-2.0 OR MITData structuresScience owl-dl-saturationConsequence-based saturation engine for the EL fragment, used by rustdl164Apache-2.0 OR MITData structuresScience owl-dl-tableauTableau-based reasoning engine for SROIQ used by rustdl165Apache-2.0 OR MITData structuresScience owl-loggerA production-ready, ergonomic logging library for Rust — inspired by Python's xmi_logger, powered by tracing.183MIT OR Apache-2.0Development tools::Debugging owl-logger-macrosProcedural macros for owl-logger — #[monitor] attribute macro for automatic function instrumentation.236MIT OR Apache-2.0 owl-ms-language-serverAn incremental analysis assistant for writing ontologies with the OWL Manchester Syntax4,234Apache-2.0 owl-writeA TUI for managing your writing49GPL-3.0-or-later owl2shaclA CLI tool that tries to convert simple OWL ontologies into SHACL shapes. OWL ontologies define logical relationships. …487AGPL-3.0-or-laterCommand line utilitiesFilesystem owl_midiBindings for OWL firmware FFI16,963GPL-2.0-or-later owl_patchRust SDK for Rebel Technology Owl2/3 devices8,782MIT OR Apache-2.0Embedded developmentMultimedia::Audio owl_patch_macrosMacros for the owl_patch crate1,349MIT OR Apache-2.0 owlchessYet another chess library for Rust15,213MITGamesParser implementations owlchess_baseBase types for owlchess (not indended to use directly)16,067MITGamesParser implementations owldictA simple to use command line dictionary for english.4,275GPL-2.0Command line utilities owlgoA lightweight CLI to assist in solving CP problems1,536non-standard owlishOWL 2 implementation with wasm support and turtle parsing81,181MIT OR Apache-2.0 owlz"Owlz" ascii emojis, created randomly or by design.3,404MIT OR Apache-2.0 owm-rsWrapper around the free offer of the OpenWeatherMap API.12,387MIT owm-weather-cliSimple CLI tool to show weather information from OpenWeatherMap2,827MIT owmathQuaternions, basic functions9,145MIT OR Apache-2.0Data structuresMathematics owml-parserA lightweight parser for a lightweight markup language.4,454MIT owmods_cliA CLI Tool To Manage OWML Mods35,973GPL-3.0-or-later owmods_coreThe core library for the Outer Wilds Mod Manager36,762GPL-3.0-or-later ownWraps an owned or borrowed value.14,844MIT OR Apache-2.0 own-ref&own references with ergonomic macro construction2,712non-standard own_artAn art library1,542MIT own_or_borrowUnified references to owned or RefCell borrowed data2,158EUPL-1.2Embedded developmentNo standard library ownableDerive macro for structs/enums with Cow, which can convert Type<'a> to Type<'static> and more1,542,424MIT OR Apache-2.0No standard libraryRust patterns ownable-coreTraits for structs/enums with Cow, which can convert Type<'a> to Type<'static> and more30,947MIT OR Apache-2.0No standard libraryRust patterns ownable-macroProcedural macros for the ownable crate1,589,549MIT OR Apache-2.0 ownable-stdutils library for eqty ownable contracts9,641MIT ownable-std-macrosproc macros for lto ownable contracts5,819MIT ownablesA library that defines the Ownable trait and facilitates mutation by moving or reading from the source.537MIT OR Apache-2.0 ownagePerform a massive ownage of your variables! Clone into closure without macros.1,566MIT OR Apache-2.0Rust patterns owndaysCLI to scrape and track Owndays HK glasses catalog22MITCommand line utilities ownedTraits for taking ownership of values1,782MIT/Apache-2.0 owned-allocA crate to help reducing manual memory management errors.2,099,509MITData structuresMemory management owned-bufAn owned buffer type for reading into possibly uninitialized memory4,515MIT OR Apache-2.0 owned-dropA wrapper that enables ownership on drop3,011MIT OR Apache-2.0 owned-fdOwnership and lifetimes for file descriptors29,214MIT OR Apache-2.0 owned-futureTurn borrowed futures into owned futures1,772MITAsynchronousMemory management owned-pinA wrapper that both owns and pins data in memory13,379MIT OR Apache-2.0Data structuresMemory management owned-pin-macrosA wrapper that both owns and pins data in memory3,816MIT OR Apache-2.0Data structuresMemory management owned-readWraps your `Deref<Target=[u8]>` into a `io::Read`.268,130MIT owned-singletonOwned singletons36,981MIT OR Apache-2.0No standard library owned-singleton-macrosProcedural macros re-exported in the owned-singleton crate37,694MIT OR Apache-2.0No standard library owned_charsOwned iterators with the same output as Chars and CharIndices79,711MIT/Apache-2.0Memory managementText processing owned_chunksa collection of traits and iterators to get owned chunks from collections4,065MIT owned_json_deserializerBecause apparently `serde_json` only deserializes through a reference™.1,580MIT OR Apache-2.0Encoding owned_ref_cellRust library offering a custom RefCell variant with owned references for flexible and dynamic borrowing management.1,442MIT owned_strProvide a stack allocated String for no-std or const environement2,001MIT owned_ttf_parserttf-parser plus support for owned data45,531,825Apache-2.0 ownedbytesExpose data as static slice15,384,949MIT ownedrefLibrary to pass around references that will be owned types on deserialization177MIT OR Apache-2.0Embedded developmentNo standard library owner-monadRust implementation of a monad which provides ownership of an object6,904Apache-2.0 ownersParsing of OWNERS files in Rust2,132MIT OR Apache-2.0 ownershipObtaining ownership.4,882MITNo standard libraryNo standard library::No dynamic allocation ownership-deriveDerive macros for obtaining ownership.1,566MIT owning-handleUtility to keep depended object along with it's owner50MIT owning_refA library for creating references that carry their owner with them.22,494,703MIT owning_ref_asyncA library for creating references that carry their owner with them.24,741MIT owning_ref_lockableA library for creating references that carry their owner with them.4,556MIT ownitEasily turn borrowed type into owned values1,022MIT OR Apache-2.0Rust patterns ownit-deriveEasily turn borrowed type into owned values1,242MIT OR Apache-2.0Rust patterns ownrefProvide the smart pointer type that bundles the data with its owner.8,019MITRust patterns ownrsParser for OWNERS files13,899MIT ownserverExpose your local game server to the Internet5,281MITGamesNetwork programming ownserver_libExpose your local game server to the Internet5,946MITGamesNetwork programming ownsight-cliCLI tool for visualizing Rust ownership and borrowing23MIT OR Apache-2.0Command line utilitiesDevelopment tools ownsight-coreCore analysis engine for Rust ownership and borrowing visualization125MIT OR Apache-2.0Development toolsVisualization ownsight-driverRust compiler integration and analysis driver for Ownsight76MIT OR Apache-2.0Development toolsParser implementations owoA simple uploader for owo.whats-th.is.10,879GPL-3.0 owo-codeOwO Code owo! pwogwam owo in ur nyative wanguage owo!3,961WTFPL owo-colorsZero-allocation terminal colors that'll make people go owo142,792,110MITCommand-line interfaceNo standard library::No dynamic allocation owo-rsmake your logs more owo1,474MIT owo-skin-rsA Rust library for controlling the OWO skin1,459MIT owoifierTranslates English text to OwO using magic.6,132GPL-3.0-or-laterCommand line utilities owoifyText owoification library10,147MIT owoify_rsThis Rust port of mohan-cao's owoify-js is released under MIT license, which is also the same license of owoify-js. This simple…20,544MIT owon-speOWON SPE programmable power-suppy api crate1,586MIT OR Apache-2.0 owoofUses SQLite to store data and a datalog-like format to query it.7,846Apache-2.0 owotilityConfiguration utility for OwOpad firmware2,628MIT OR Apache-2.0Command line utilities owoverlayA very simple configurable key overlay written in Rust.2,602MIT owsBrand new Rust Window System Library. Still in development not ready for use at all but if you want to stay up to date on…1,390Apache-2.0 ows-cantonCanton Network chain family plugin for Open Wallet Standard38MITAuthenticationCryptography ows-cliCLI for the Open Wallet Standard394MIT ows-coreCore types and traits for the Open Wallet Standard39,840MIT ows-libHigh-level library API for the Open Wallet Standard7,002MIT ows-payPayment client for the Open Wallet Standard (x402)405MIT ows-signerCryptographic signing and key management for the Open Wallet Standard39,674MIT oww-rsMinimalistic version of the OpenWakeWord inference in Rust and ONNX runtime38,106MITMultimedia::AudioScience owxAgent-native, self-custodial, policy-gated, multi-chain wallet toolkit.61MIT OR Apache-2.0Cryptography::Cryptocurrencies owx-cliCLI for OWX agent wallet toolkit.19MIT OR Apache-2.0Cryptography::Cryptocurrencies owx-payx402 payment protocol, service discovery, and wallet funding for OWX.36MIT OR Apache-2.0Cryptography::Cryptocurrencies owx-swapBackend-agnostic cross-chain token swap engine for OWX.36MIT OR Apache-2.0Cryptography::Cryptocurrencies owx-vaultCrypto envelope, secret-bytes, and generic file-system store for OWX.74MIT OR Apache-2.0Cryptography::Cryptocurrencies oxAn NWScript bytecode disassembler.2,155MIT ox-codesCode search, structural rewrite, and dataflow analysis as an HTTP service — ripgrep + tree-sitter + ast-grep behind one JSON API.60MITCommand line utilitiesDevelopment tools ox-coreCode search engine (grep, scoped, structural, rewrite) over ripgrep + tree-sitter + ast-grep (part of ox-codes).82MITDevelopment toolsParsing tools ox-dataflowIntraprocedural dataflow engine (IL, CFG, def-use, reaching definitions, taint tracking) (part of ox-codes).84MITDevelopment toolsParsing tools ox-langsTree-sitter language definitions and AST scope queries for 15 languages (part of ox-codes).100MITDevelopment toolsParsing tools ox-serveraxum HTTP handlers exposing ox-codes' search, rewrite, and dataflow engines as a JSON API.72MITDevelopment toolsWeb programming::HTTP server ox_content_allocatorArena allocator for Ox Content based on bumpalo3,615MITDevelopment tools ox_content_astAST definitions for Ox Content Markdown parser3,236MITDevelopment tools ox_content_docsSource code documentation generator for Ox Content (like cargo docs)1,109MITDevelopment tools ox_content_incrementalIncremental Markdown parsing and rendering for Ox Content248MITDevelopment tools ox_content_mdastMDAST serializers and transfer buffers for Ox Content158MITDevelopment tools ox_content_napiNode.js bindings for Ox Content25MITDevelopment tools ox_content_og_imageOG image generation for Ox Content1,812MITDevelopment tools ox_content_parserHigh-performance Markdown parser for Ox Content2,155MITDevelopment tools ox_content_profilerProfiling primitives for Ox Content: counting global allocator, hierarchical timing spans, and report formatting362MITDevelopment tools ox_content_rendererMarkdown renderer for Ox Content1,922MITDevelopment tools ox_content_searchFull-text search engine for Ox Content1,085MITDevelopment tools ox_content_ssgStatic Site Generation for Ox Content documentation1,738MITDevelopment tools ox_content_transformMarkdown transformation pipeline for Ox Content124MITDevelopment tools ox_content_viteVite Environment API integration for Ox Content1,017MITDevelopment tools ox_content_wasmWebAssembly bindings for Ox Content - Browser-ready Markdown parser24MITDevelopment tools ox_jsdocHigh-performance JSDoc parser with Binary AST format and lazy decoder, inspired by oxc5,720MITParser implementations ox_mf2_parserHigh Performance MessageFormat 2 parser core with CST, diagnostics, recovery, semantic lowering, and binary snapshot support.239MITInternationalization (i18n)Parser implementations oxain development39MIT oxa-typesRust types generated from the OXA schema44MITData structuresEncoding oxablHigh-performance tooling suite for Progress ABL35MIT oxabl_astAST node definitions for the Oxabl ABL parser235MIT oxabl_codegenCode generation tool for Oxabl lexer keywords and atoms34MIT oxabl_commonShared utilities for the Oxabl ABL tooling suite218MIT oxabl_lexerTokenizer for Progress ABL source code164MIT oxabl_parserParser for Progress ABL source code107MIT oxagornOxagorn - Rust reimplemented ARAGORN, tRNA and tmRNA detection, for bactars annotator78GPL-3.0 oxaiAn AI powered SDK1,811MIT oxalisA peer to peer backup service.1,838MIT OR Apache-2.0 oxalis-renderer[WIP] A real-time renderer1,235MIT oxalslienALIEN-inspired claim verification and finality probability simulator28MIT oxanaA simple & fast job queue system.1,279MITAsynchronousConcurrency oxana-macrosMacros for Oxana.1,251MIT oxana-webWeb UI for Oxana job queue system.643MITAsynchronousWeb programming oxanusDEPRECATED: renamed to oxana. Use oxana 2.x instead.21,032MITAsynchronousConcurrency oxanus-macrosDEPRECATED: renamed to oxana-macros. Use oxana-macros 2.x instead.957MIT oxanus-webDEPRECATED: renamed to oxana-web. Use oxana-web 2.x instead.508MITAsynchronousWeb programming oxapiGenerate type-safe Rust server stubs from OpenAPI specs5,817LGPL-3.0Development tools::Procedural macro helpersWeb programming oxapi-implImplementation details for oxapi - not for direct use6,044LGPL-3.0 oxapi-macroProcedural macros for oxapi - not for direct use5,927LGPL-3.0 oxarchiveRust SDK for async 0xArchive market data clients147MITAPI bindingsFinance oxaterminalOXA TERMINAL SDK20MIT oxbitnetRun BitNet b1.58 ternary LLMs with wgpu151MIT oxbowRead conventional genomic file formats as data frames and more via Apache Arrow.6,535MIT OR Apache-2.0Data structuresEncoding oxbuildUltra-fast typescript compiler5,555MITCompilersDevelopment tools oxcA collection of JavaScript tools written in Rust.1,218,305MITCompilersDevelopment tools oxc-browserslistRust-ported Browserslist for Oxc.1,650,175MITConfigurationWeb programming oxc-css-parserParser for CSS, SCSS, Sass, and Less.22,643MIT oxc-css-parser-macroProcedural macros for oxc-css-parser.2,593MIT oxc-graphql-parserSpec-compliant GraphQL parser.15,738MIT OR Apache-2.0CompilersDevelopment tools oxc-mietteFancy diagnostic reporting library and protocol for us mere mortals who aren't compiler hackers.4,346,970Apache-2.0Rust patterns oxc-miette-deriveDerive macros for miette. Like `thiserror` for Diagnostics.4,344,741Apache-2.0Rust patterns oxc-schemarsGenerate JSON Schemas from Rust code267,857MITEncoding oxc-tomlA TOML formatter library77,216MITParser implementationsParsing tools oxc-yaml-parserA YAML 1.2 parser that produces a comment-preserving typed AST.1,384MITParser implementationsText processing oxc-zedOxc Zed Extension320MIT oxc_allocatorA collection of JavaScript tools written in Rust.5,061,684MITCompilersDevelopment tools oxc_astA collection of JavaScript tools written in Rust.5,047,065MITCompilersDevelopment tools oxc_ast_lowerOxc is a JavaScript / TypeScript tooling suite.7,400MITCompilersDevelopment tools oxc_ast_macrosA collection of JavaScript tools written in Rust.4,899,282MITCompilersDevelopment tools oxc_ast_visitA collection of JavaScript tools written in Rust.1,607,064MITCompilersDevelopment tools