All 305,250 crates, alphabetically

couplercoupler1,666MIT/Apache-2.0 coupon_rsCoupon PRICE and YIELD function in Rust1,495MITFinance courageCourage16MIT courgetteColour manipulation/conversion library3,392non-standardData structuresGraphics courierUtility to make it easier to send and receive data when using the Rocket framework.6,324MIT/Apache-2.0Development toolsWeb programming courier-rustRust SDK for Vylth Courier — centralized webhook dispatch21MIT Cours_Rust_Guess_The_NumberUn jeu où vous devez deviner quel nombre l'ordinateur a choisi.1,656MIT coursesample library for understanding rust course1,761MIT course-matcherCourse matcher — pairwise course-record matching with weighted fuzzy + deterministic strategies, modelled on schema.org/Course88MIT OR Apache-2.0 OR BSD-3-Clause OR GPL-2.0-only OR GPL-3.0-onlyAlgorithmsText processing course-serviceCourse Service — a course-administration microservice modelled on schema.org/Course; interoperates with the course-matcher crate32MIT OR Apache-2.0 OR BSD-3-Clause OR GPL-2.0-only OR GPL-3.0-onlyDatabase interfaces coursehkuA library for course scheduling in HKU5,224MIT OR Apache-2.0 coursemapA tool to visualize course dependencies from Quarto/Markdown documents788MITCommand line utilitiesVisualization coursepointerConverts waypoints into Garmin FIT course points2,314MITCommand line utilitiesScience::Geospatial coursesA publishing system for interactive content56,438GPL-3.0-or-laterCommand line utilities cout2jsonConverts cout output to json2,411MIT OR Apache-2.0 coutilsA set of useful functions for Rust.11,189non-standard covgcov format (*.gcda/*.gcno) parser and analyzer in pure Rust15,223MITParsing tools cov-markManual coverage marks.6,831,686MIT OR Apache-2.0Development tools covaFirst principles, minimally dependent, geometric and topologically focused math library2,108AGPL-3.0 cova-algebraCova's algebraic library2,192AGPL-3.0 cova-solverCova's solvers library154AGPL-3.0 cova-spaceCova's geometric and topological library2,395AGPL-3.0 covalentCrate name available5,411Apache-2.0 covalent_class_aRust wrapper for the Covalent Class A Endpoints https://www.covalenthq.com/docs/api6,131non-standard covalent_glCrate name available4,357Apache-2.0 covarCalls physically-linked mutation clusters from wastewater amplicon sequencing data575MIT OR Apache-2.0 covconCrate to convert between code coverage formats.2,816MIT covctlCLI tool to easily interact with the covalent API https://www.covalenthq.com/docs/api4,042non-standard coveCasts Of Varying Elegance (COVE): extension traits for casting numerical types10,503MITEncodingMathematics cove-cliClaude Code session manager — tmux-based multi-session workflow383MITCommand line utilities cove-numA collection of minor utilities for numbers to support generic programming and casting.1,194MIT covectoDual-engine image vectorization CLI29MIT covecto-apiDual-engine image vectorization HTTP API36MIT covecto-coreDual-engine image vectorization core43MIT covenA minimal streaming display and workflow runner for Claude Code's -p mode285MITCommand line utilitiesDevelopment tools coven-protoProtobuf definitions for coven agent-server communication22MIT coven-sshSSH key management and authentication utilities for coven services22MIT covenantPer-link negotiation for the Flowpack (FP/1) wire protocol: JIT-propose compact binary layouts over plain OSC, with consent,…36MITMultimedia::AudioNetwork programming coverA simple Rust tool for syncing directories with change detection134Apache-2.0Filesystem cover-filesA simple Rust tool for syncing directories with change detection271Apache-2.0Filesystem cover_cryptKey Policy attribute encryption based on subset cover22,609MIT/Apache-2.0 coverage-badgeGenerate shields.io-style SVG badges for test coverage percentages153MITCommand line utilitiesDevelopment tools::Testing coverage-datadog-publisherPush your code coverage to datadog2,747MIT coverage-helperHelper for <https://github.com/taiki-e/cargo-llvm-cov/issues/123>. (deprecated)242,953Apache-2.0 OR MITDevelopment tools::Testing coverage-lspCode Coverage Language Server137Zlib coverage-prepareConvert coverage data to HTML reports, LCOV files or terminal tables81,462MITCommand line utilitiesDevelopment tools coverage2lcovA simple program to generate `lcov` file from data file generated by [coveragepy](https://github.com/nedbat/coveragepy ), when an…1,598MIT OR Apache-2.0Command line utilitiesDevelopment tools coverage_lintA no-config Rust test coverage linter.92MIT OR Apache-2.0Development tools coverallA test package to run against uniffi backends1,697MPL-2.0 coverallsSend job to Coveralls (coveralls.io)9,978LGPL-3.0Command line utilitiesDevelopment tools::Build Utils coveralls-apiAPI Bindings for coveralls.io. Deals with report creation and submission.2,254,839MIT/Apache-2.0API bindingsWeb programming::HTTP client coverioBetter code coverage reporting for Rust crates2,379MIT OR Apache-2.0Development tools coverletterA tool to help you find a job12,142MIT OR Apache-2.0Command line utilities covermRead coverage calculator for metagenomics16,926GPL-3.0 covermeA tool to analyze local code repositories for test coverage5,366MITCommand line utilities coversLightweight library allowing to mock functions in Rust9,506non-standardDevelopment tools::Testing covershootCLI tool to find the zeta given the overshoot of a second order system.1,437MIT covertCovert CLI5,161MIT OR Apache-2.0 covert-frameworkCovert framework for implementing backends6,803MIT OR Apache-2.0 covert-kvCovert versioned key value secret engine6,781MIT OR Apache-2.0 covert-psqlCovert PostgreSQL secret engine6,702MIT OR Apache-2.0 covert-sdkCovert SDK6,692MIT OR Apache-2.0 covert-storageCovert encrypted storage implementation7,299MIT OR Apache-2.0 covert-systemCovert server6,231MIT OR Apache-2.0 covert-typesCovert type definitions8,296MIT OR Apache-2.0 covert-userpass-authCovert userpass auth method6,740MIT OR Apache-2.0 covert_clientHelper library for creating external C2 clients for Cobalt Strike7,683GPL-3.0-or-later covert_commonHelper library for creating covert tunnels on an unreliable channel5,223GPL-3.0-or-later covert_serverHelper library for creating external C2 servers for Cobalt Strike6,397GPL-3.0-or-later covetCLI and web frontend for scanning with HP Envy printer / scanners16,342GPL-3.0-or-laterCommand line utilities coveyIO interface for the Covey application767MIT covey-manifest-macrosProc macro export for covey-plugin1,625MIT covey-pluginAPIs for creating Covey plugins1,396MIT covey-protoGenerated tonic protobuf types1,200MIT covey-schemaShared types for Covey's configuration2,044MIT covey_asset_loaderBevy plugin for asset loading3,330MIT OR Apache-2.0Game development covey_asset_loader_macrosMacros for covey_asset_loader2,155MIT OR Apache-2.0Game development covfefewhen i find myself in times of trouble, mother mary comes to me speaking words of wisdom, covfefe2,069MIT covfefifyEnd sentences with style.2,088MIT covgateDiff-focused coverage gates for local CI, pull requests, and autonomous coding agents.176Apache-2.0Command line utilitiesDevelopment tools::Testing covguardCLI for diff-scoped coverage gating on changed lines27Apache-2.0 OR MITCommand line utilitiesDevelopment tools::Testing covguard-adapters-artifactsFilesystem artifact adapters for covguard reports and fallback outputs.92Apache-2.0 OR MITCommand line utilitiesDevelopment tools::Testing covguard-adapters-coverageLCOV parsing and coverage-map merge adapter for covguard275Apache-2.0 OR MITDevelopment tools::TestingParser implementations covguard-adapters-diffUnified diff parsing and git-diff loading adapter for covguard275Apache-2.0 OR MITDevelopment tools::TestingParser implementations covguard-adapters-repoFilesystem-backed RepoReader adapter for covguard ignore-directive lookup91Apache-2.0 OR MITDevelopment tools::Testing covguard-appCompatibility facade over covguard-orchestrator153Apache-2.0 OR MITDevelopment tools::Testing covguard-configConfiguration loading, profile defaults, and CLI precedence resolution for covguard273Apache-2.0 OR MITConfigurationDevelopment tools::Testing covguard-coreBackward-compatible facade crate that re-exports covguard-app20Apache-2.0 OR MITDevelopment tools::Testing covguard-directivesDirective parsing and directive-range helpers for covguard385Apache-2.0 OR MITDevelopment tools::Testing covguard-domainPure policy evaluation engine for diff-scoped coverage decisions330Apache-2.0 OR MITDevelopment tools::Testing covguard-orchestratorApplication orchestration layer for covguard218Apache-2.0 OR MITDevelopment tools::Testing covguard-outputComposable report rendering and output feature flags for covguard330Apache-2.0 OR MITDevelopment tools::Testing covguard-output-featuresShared output feature-flag contracts for covguard renderers438Apache-2.0 OR MITDevelopment tools::Testing covguard-pathsReusable path normalization helpers for covguard adapters381Apache-2.0 OR MITDevelopment tools::Testing covguard-policyShared policy and profile contracts for covguard686Apache-2.0 OR MITDevelopment tools::Testing covguard-portsPort traits and boundary types for covguard adapters and app orchestration594Apache-2.0 OR MITDevelopment tools::Testing covguard-rangesRange merging utilities for covguard diff coverage331Apache-2.0 OR MITDevelopment tools::Testing covguard-renderRender covguard reports as markdown, GitHub annotations, and SARIF486Apache-2.0 OR MITDevelopment tools::Testing covguard-reportingReport construction for covguard (standard + sensor schemas)276Apache-2.0 OR MITDevelopment tools::Testing covguard-typesShared report DTOs, codes, and schema constants for covguard640Apache-2.0 OR MITDevelopment tools::Testing covid-19COVID-191,896non-standard covid-cliA tool that allows users to get the latest data on COVID-19 cases, deaths & recoveries on a global and local (country-based) scale1,714MITCommand line utilities covid19Wrapper for cv19api https://lbandc.github.io/2020/04/14/project-cv19api.html4,421MIT/Apache-2.0API bindings covid19_uk_rsUnofficial Rust library for the 'Coronavirus in the UK' data API4,476MIT OR Apache-2.0 covid19dbUtility for building and accessing COVID-19 datasets19,809GPL-3.0+Command line utilitiesDatabase interfaces covid_cert_uvciTool to parse EU Digital COVID Certificate UVCI (Unique Vaccination Certificate/Assertion Identifier)4,154MIT covid_trackerSimple little CLI tool to get the current Covid information from https://www.worldometer.info4,067MITCommand line utilities covidcotraA covid-19 contract tracing experiment4,410Apache-2.0 coviddRender current covid data for Dresden in the terminal4,601MIT OR Apache-2.0 covidtrVerileri covid19.saglik.gov.tr'den Çeken Küçük Bir Crate3,039MIT covizSource code logic and call graph visualizer for Go and Rust.27Apache-2.0Command line utilitiesDevelopment tools covkUnsafe vulkan bindings for Rust63MITAPI bindingsExternal FFI bindings covk_sysLow-level unsafe vulkan bindings for Rust139MITAPI bindingsExternal FFI bindings covoConsonant-vowel binary encoding for human-pronounceable strings27BSD-3-ClauseEncoding CovOpt-AnalyzerA Coverage-Optimized Complexity Analyzer and Auto-Tuning engine for Rust.48MITDevelopment tools::ProfilingDevelopment tools::Testing covopt-macroLightweight zero-dependency parameter tuning macro for CovOpt-Analyzer45MITDevelopment tools::ProfilingNo standard library covrsCode coverage ingestion and reporting217MITCommand line utilitiesDevelopment tools::Testing covstreamLean-backed fixed-dimension streaming covariance and Ledoit-Wolf shrinkage71MITAlgorithmsMathematics covy-cliFast Rust CLI for coverage and diagnostics gating42MIT covy-coreFast Rust CLI for coverage and diagnostics gating196MIT covy-ingestFast Rust CLI for coverage and diagnostics gating121MIT cowA Copy-On-Write Triemap16,455Apache-2.0 cow-app-dataApp-data schema, validation, CID encoding and hook metadata for the CoW Protocol SDK.282MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-bridgingCross-chain bridge aggregator for the CoW Protocol SDK (Across, Bungee).181MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-browser-walletEIP-1193 browser wallet adapter and wasm-bindgen glue for the CoW Protocol SDK.183MIT OR Apache-2.0API bindingsWebAssembly cow-bytesA `Cow`-like wrapper for `Bytes` that can be either borrowed or owned.19Apache-2.0 OR GPL-3.0-or-laterData structuresNetwork programming cow-cards-rsPlaying cards1,584MIT cow-chainsPer-chain configuration, contract addresses and canonical endpoints for the CoW Protocol.626MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-cliCopy-on-write workspace manager for parallel development201MIT cow-composableCoW Protocol composable (conditional) orders: TWAP, stop-loss, GAT, Merkle multiplexer.182MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-contracts-abiLayer 1 ABI bindings for CoW Protocol contracts (placeholder).108MIT OR Apache-2.0API bindings cow-dice-rsGame dice1,579MIT cow-erc20ERC-20 and EIP-2612 calldata builders for the CoW Protocol SDK.326MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-errorsShared error type for the CoW Protocol SDK workspace.809MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-ethflowEthFlow (native ETH) order encoding for the CoW Protocol SDK.278MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-flash-loansFlash loan orchestration helpers for the CoW Protocol SDK.178MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-graphLayer 3 GraphQL transport primitives for the CoW Protocol SDK (placeholder).102MIT OR Apache-2.0API bindings cow-httpLayer 3 HTTP transport primitives (rate limiter, retry policy) for the CoW Protocol SDK.405MIT OR Apache-2.0API bindings cow-ipfsLayer 4 IPFS client (Pinata) for the CoW Protocol SDK (placeholder).104MIT OR Apache-2.0API bindings cow-onchainJSON-RPC eth_call reader for on-chain state queries used by the CoW Protocol SDK.283MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-orderbookHTTP client for the CoW Protocol orderbook REST API (generated from OpenAPI).338MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-parserA parser for the esoteric Cow programming language.79MIT cow-permitEIP-2612 permit encoding and signing for the CoW Protocol SDK.176MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-primitivesLayer 0 foundational constants and primitive re-exports for the CoW Protocol SDK.376MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-rc-strBorrow from an original input string and avoid allocating/copying when possible1,704MPL-2.0 cow-replaceString replace with Cow77,774Apache-2.0 cow-rewriteRewrite copy-on-write types copying only when it's neccessary1,049MITData structuresText processing cow-rsRust SDK for the CoW Protocol: quoting, signing, posting and tracking orders, plus composable orders, on-chain reads and subgraph…149MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-sdkFacade crate for CoW Protocol Rust SDK surfaces239GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-alloyComposed Alloy provider and signer adapter for the CoW Protocol Rust SDK261GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-alloy-providerAlloy-backed read-only Provider adapter for the CoW Protocol Rust SDK288GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-alloy-signerAlloy-backed local private-key Signer adapter for the CoW Protocol Rust SDK288GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-app-dataCoW Protocol app-data encoding, validation, and CID compatibility375GPL-3.0-or-laterCryptography::CryptocurrenciesEncoding cow-sdk-bridgingReserved placeholder for cow-sdk-bridging, the bridging domain and orchestration core for the CoW Protocol Rust SDK.14GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-bridging-acrossReserved placeholder for cow-sdk-bridging-across, the Across bridge provider for the CoW Protocol Rust SDK.15GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-bridging-coreReserved placeholder for cow-sdk-bridging-core, an alternate-name reservation for the bridging core of the CoW Protocol Rust SDK.14GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-bridging-near-intentsReserved placeholder for cow-sdk-bridging-near-intents, the Near Intents bridge provider for the CoW Protocol Rust SDK.15GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-browser-walletBrowser wallet integration for the CoW Protocol Rust SDK44GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-composableReserved placeholder for cow-sdk-composable, the composable and conditional order domain for the CoW Protocol Rust SDK.14GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-contractsCoW Protocol low-level contracts helpers for order hashing, signature codecs and verification, ABI bindings, and fail-closed…484GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-coreShared CoW Protocol core types and validation primitives635GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-cow-shedReserved placeholder for cow-sdk-cow-shed, the CoW Shed smart-account proxy integration for the CoW Protocol Rust SDK.15GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-flash-loansReserved placeholder for cow-sdk-flash-loans, the flash-loan orchestration helpers for the CoW Protocol Rust SDK.14GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-orderbookTyped CoW Protocol orderbook client models and decoding helpers381GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-signingDeterministic CoW Protocol order hashing, EIP-712 signing, and UID helpers401GPL-3.0-or-laterCryptographyCryptography::Cryptocurrencies cow-sdk-subgraphTyped CoW Protocol subgraph query primitives273GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-testIn-memory test doubles for the cow-rs SDK public traits (OrderbookClient, Signer, Provider) so downstream applications can test…260GPL-3.0-or-later cow-sdk-tradingHigh-level CoW Protocol trading orchestration surface332GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cow-sdk-transport-policyReserved placeholder for cow-sdk-transport-policy, the retry, rate-limit, and transport classification policy for the CoW…17GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-wasmReserved placeholder for cow-sdk-wasm, the TypeScript-callable wasm-bindgen leaf of the CoW Protocol Rust SDK.17GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-sdk-weirollReserved placeholder for cow-sdk-weiroll, the Weiroll script planner for the CoW Protocol Rust SDK.15GPL-3.0-onlyAPI bindingsCryptography::Cryptocurrencies cow-settlementSettlement encoder, simulator, and vault helpers for the CoW Protocol SDK.175MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-shedCoW Shed hook framework helpers for the CoW Protocol SDK.225MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-signingEIP-712 order signing, EIP-1271, and OrderUid computation for the CoW Protocol SDK.411MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-subgraphGraphQL subgraph client for CoW Protocol historical data.236MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-tradingHigh-level trading SDK for the CoW Protocol (quote → sign → post → track).238MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-typesLayer 1 protocol types for the CoW Protocol SDK (OrderKind, SigningScheme, TokenBalance, ...).636MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow-utilsCopy-on-write string utilities for Rust7,863,391MITNo standard libraryText processing cow-weirollWeiroll script builder and encoding for the CoW Protocol SDK.177MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies cow2Like Cow<B>, but B is covariant4,463MITNo standard libraryRust patterns cow_arcCowArc can be useful for decreasing memory allocations by sharing immutable memory.6,856MIT cow_hashbrownA Rust port of Google's SwissTable hash map with copy-on-write support19,371MIT OR Apache-2.0Data structuresNo standard library cow_hashmapHashmap with copy-on-write semantics that requires no locks14,094MIT OR Apache-2.0Data structures cow_structDerive a struct with clone-on-write fields2,874MIT cow_vecA vector-like container optimized for efficient cloning with copy-on-write semantics144MITData structuresMemory management cow_vec_itemCopy-on-write Vec, available on stable rust.8,396MIT/Apache-2.0 cowbirdEDR tool2,813MIT OR Apache-2.0 cowblockBlock-level copy-on-write tool2,810MIT OR Apache-2.0 cowboySafe & convenient container for quick prototyping.7,155MIT cowdecowde-咬文嚼码20MIT OR Apache-2.0 cowfileA copy-on-write abstraction for binary data backed by memory or files5,344Apache-2.0Data structuresFilesystem cowircAsychronous IRCv3 library for Rust2,750AGPL-3.0-only cowlangA simple Python-like scripting language995non-standard cowlang-deriveA simple Python-like scripting language: Macros1,001non-standard cowmugAn inteactive command line user interface.1,697MIT OR Apache-2.0 cownA simple program for finding out the codeowners of a file4,194GPL-3.0-or-laterCommand line utilities cowonverterA library to owo-ify text files. provides a simple function for this purpose.9,239MIT OR Apache-2.0 coworA color conversion and manipulation library1,573GPL-3.0-onlyGraphicsMultimedia::Images coworkCLI tool for managing Claude Code skills - install, generate, and organize skills across AI coding agents463MITCommand line utilitiesDevelopment tools cowork-coreAI-powered software development system that automates the entire lifecycle from requirements analysis to code delivery through…23MIT