All 305,250 crates, alphabetically

cyllenePython Notebook1,544MIT cyloSecure multi-language code execution service1,897MITDevelopment toolsOperating systems cylonAn efficient compiler for robots.txt files11,866MITParser implementations cylon_astSimple Cylon AST implementation allow for easy exporting with serde. For the Yolol language in the upcoming game Starbase.12,728MIT cylunA terminal-based editor written in Rust.1,949MIT cylusInspired by WiringPi, a library for RaspberryPi GPIO2,887MIT cymbalsearch for symbols in a codebase4,125CC0-1.0 cymeList system USB buses and devices. A modern cross-platform lsusb34,825GPL-3.0-or-laterCommand line utilities cymrustQuery Team Cymru's IP-to-ASN mapping via DNS23,571MITAPI bindings cynapseReal-time, memory-resident binary integrity verification for Rust applications254MIT OR Apache-2.0CryptographyDevelopment tools cyncCLI for private file management4,503MITCommand line utilitiesFilesystem cyndikatorA cli rss reader5,506MIT cyndikator-atoma atom format parser1,808MIT cyndikator-dispatcha mini dispatch language for handling feed events3,863MIT cyndikator-rssa rss parsing crate1,766MIT cynicA code first GraphQL client for Rust4,356,054MPL-2.0 cynic-cliA CLI for cynic, a code first GraphQL client for Rust30,324MPL-2.0 cynic-codegenProcedural macro code generation for cynic - a code first GraphQL client for Rust4,351,839MPL-2.0 cynic-github-schemaGithub graphql schema for cynic2,337MIT cynic-introspectionGraphQL API introspection for cynic343,313MPL-2.0 cynic-parserA fast, correct and easy to use GraphQL parser3,462,561MPL-2.0 cynic-parser-deserDeserialization for cynic-parser Values72,423MPL-2.0 cynic-parser-deser-macrosMacros for cynic-parser-deser72,475MPL-2.0 cynic-proc-macrosProcedural macro crate for cynic - a code first GraphQL client for Rust4,349,088MPL-2.0 cynic-querygenGenerates code for using cynic from GraphQL query input59,008MPL-2.0 cyninstCynthia-CMS installation manager2,354GPL-3.0-or-later cynos-binaryBinary protocol for high-performance row serialization104Apache-2.0 cynos-coreCore types and schema definitions for Cynos database586Apache-2.0 cynos-databaseWASM API bindings for Cynos in-memory database23Apache-2.0 cynos-incrementalIncremental View Maintenance (IVM) for Cynos database317Apache-2.0 cynos-indexIndex implementations for Cynos database249Apache-2.0 cynos-jsonbJSONB data type implementation for Cynos database179Apache-2.0 cynos-queryQuery engine for Cynos in-memory database103Apache-2.0 cynos-reactiveReactive query system for Cynos database104Apache-2.0 cynos-storageStorage layer for Cynos in-memory database178Apache-2.0 cynosureHigh performance data structures & primitives from beyond the Blackwall35,754MIT cynthiaA high performance asynchronous programming runtime for Rust.9,661MIT/Apache-2.0 cynthia-macroscynthia's proc macros.6,649MIT/Apache-2.0 cynthia_cmsA simple web server + CMS based on plain file editing. I hate WordPress.1,190GPL-3.0 OR MIT cynthia_conA small output colorising/styling library originally created for the Cynthia project.3,304MIT cynthiawebA simple web server and generator based on plain file editing. I hate WordPress.17,402AGPL-3.0-only cynthionRust library for the Great Scott Gadgets Cynthion USB Test Instrument.2,941BSD-3-ClauseEmbedded developmentHardware support cyoaA Crate to facilitate the creation of Choose-Your-Own-Adventure games in a text-based format4,247MITGame development cypat_scoring_engineA CyberPatriots scoring engine library8,907GPL-3.0-only cyperHTTP client library based on compio and hyper90,318MITAsynchronousNetwork programming cyper-axumaxum adaptor based on cyper64,619MITAsynchronousNetwork programming cyper-coreCore adaptors and services for compio running on hyper94,479MITAsynchronousNetwork programming cyper-hickoryHTTP DNS resolver for cyper81MITAsynchronousNetwork programming cyphalOpen Cyphal Rust Implementation10,982MIT OR Apache-2.0Embedded developmentHardware support cyphal-bxcanOpen Cyphal BXCAN Rust Implementation5,703MIT OR Apache-2.0 cyphal-canOpen Cyphal CAN Transport Rust Implementation6,047MIT OR Apache-2.0 cyphal-dsdlOpen Cyphal DSDL Rust Implementation3,752MIT OR Apache-2.0Embedded developmentHardware support cyphal-embassyOpen Cyphal CAN Transport Rust Implementation for embassy]1,267MIT OR Apache-2.0 cyphal-fdcanOpen Cyphal FDCAN Rust Implementation4,636MIT OR Apache-2.0 cyphal-serialOpen Cyphal Serial Transport Rust Implementation1,281MIT OR Apache-2.0 cyphal-socketcanOpen Cyphal SocketCAN Rust Implementation5,919MIT OR Apache-2.0 cyphal-udpOpen Cyphal UDP Transport Rust Implementation3,664MIT OR Apache-2.0 cyphal-udpsocketOpen Cyphal UDP Socket Rust Implementation3,709MIT OR Apache-2.0 cypher-dataCypher linting CLI and library for .cypher files338MITCommand line utilitiesDevelopment tools cypher-dtoA collection of traits and macros for working Data Transfer Objects (DTOs) Cypher and Neo4j.6,663MITDatabase interfaces cypher-dto-macrosThe macros for cypher-dto.7,175MITDatabase interfaces cypher-parserA lexer, parser, and pluggable executor for a practical subset of the Cypher graph query language.2,866MITParser implementations cypher_deriveA flexible and intuitive query builder for Neo4j and Cypher.8,802BSD-2-Clause cypheraData protection SDK — format-preserving encryption (FF1/FF3), AES-GCM, data masking, and hashing. Zero-copy passthrough…251Apache-2.0CryptographyEncoding cyphera-keychainUniversal key resolution — one API, every key store17Apache-2.0 cyphera-kmipKMIP client for Rust — connect to any KMIP-compliant key management server20Apache-2.0CryptographyNetwork programming cypheraddrNetwork address types supporting proxying, mixnets, P2P with minimalistic dependencies (part of cyphernet suite)61,614Apache-2.0EncodingNetwork programming cyphergraphyImplementation-independent abstractions for main cryptographic algorithms (part of cyphernet suite)61,665Apache-2.0CryptographyNetwork programming cypherlite-coreCore types, traits, and error handling for CypherLite graph database363MIT OR Apache-2.0Data structuresDatabase implementations cypherlite-ffiC ABI foreign function interface bindings for CypherLite graph database158MIT OR Apache-2.0Data structuresDatabase implementations cypherlite-queryCypher query engine with parser, planner, and executor for CypherLite235MIT OR Apache-2.0Data structuresDatabase implementations cypherlite-storageStorage engine with WAL, B+Tree indexing, and ACID transactions for CypherLite305MIT OR Apache-2.0Data structuresDatabase implementations cyphernetCyphernet is a set of libraries for privacy-preserving networking apps68,159Apache-2.0CryptographyEncoding cyphersPure Rust implementation of classical ciphers (for fun and learning)1,498non-standard cyphrCyphr self-sovereign identity protocol86non-standardAuthenticationCryptography cyphr-cliReference CLI for the Cyphr identity protocol18non-standardCommand line utilitiesCryptography cyphr-storageStorage backends for Cyphr identity protocol52non-standardAuthenticationCryptography cypressBuild simple yet expressive parsers1,442non-standardParsing tools cyqueUnidirectional, circular, lock/wait-free SPSC queue with unbounded capacity.1,238MPL-2.0ConcurrencyData structures cyrce-forge-cliCLI del build system FORGE24MIT cyrce-forge-coreMotor principal de FORGE: DAG, ejecutor paralelo y caché317MIT cyrce-forge-depsResolución de dependencias para FORGE: Maven Central y PyPI103MIT cyrce-forge-langsMódulos de lenguaje para FORGE: Java, Kotlin, Python103MIT cyrce-forge-lspLanguage Server Protocol (LSP) oficial para FORGE23MIT cyrconvA funny faux cyrillic character mapper9,074non-standardCommand line utilitiesGames cyrilCross-platform TUI client for Kiro CLI via the Agent Client Protocol (ACP)21MITCommand line utilitiesDevelopment tools cyril-coreCore protocol logic, path translation, hooks, and capabilities for the Cyril ACP client97MITDevelopment tools cyrlaLibrary for two-way conversion between latin and cyrillic script1,676MITText processing cyrlyA serde-based YAML serializer for Rust with an unusual output style2,259MITEncodingParser implementations cyrsA simple C-c C-v tool in command line.15,006MIT cyrs-agentStateless JSON API for Cypher / GQL frontend operations (parse/check/complete/hover/rewrite/...).18Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-astTyped AST for Cypher / GQL, codegen'd from cyrs-syntax (spec 0001 §5).304Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-cliCommand-line tool for the cyrs Cypher / GQL frontend (parse, format, check, plan, explain).19Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-dbSalsa-backed incremental analysis database for Cypher / GQL (spec 0001 §11).230Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-diagStable diagnostic codes and rendering for the Cypher / GQL frontend (spec 0001 §10).268Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-ffiStable C ABI over the Cypher / GQL frontend (cyrs-lang-services + cyrs-db + cyrs-diag + cyrs-fmt). Produces a cdylib + staticlib…21Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-fmtFormatter for Cypher / GQL source that round-trips through the parser (spec 0001 §13).266Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-hirHigh-level IR for Cypher / GQL with scope graph and name resolution (spec 0001 §6).287Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-langCypher / GQL frontend — lossless CST, typed AST, HIR, semantic analysis, schema-aware checks, diagnostics, formatter, plan IR.20Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-lang-servicesShared language-service engines (completion, hover, rewrite) used by cyrs-lsp and cyrs-agent (spec 0001 §14 / §15).164Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-lspLanguage Server Protocol implementation for Cypher / GQL (spec 0001 §14).18Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-planLogical plan IR lowered from Cypher / GQL HIR (spec 0001 §12).247Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-projectCypher / GQL project manifest (cypher-project.toml) format and loader (spec 0003).208Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-pyPython (PyO3) bindings for the Cypher / GQL frontend (cyrs-lang-services + cyrs-db + cyrs-diag + cyrs-fmt). Packaged as a…18Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-schemaSchema types and SchemaProvider trait for Cypher / GQL (spec 0001 §8).289Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-semaSchema-aware and schema-free semantic analysis for Cypher / GQL (spec 0001 §7).247Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-syntaxLossless CST and recovering parser for Cypher / GQL (spec 0001 §4).361Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-tckopenCypher TCK v1 conformance harness for the cyrs frontend (spec 0001 §17.5).18Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrs-wasmWebAssembly binding (wasm-bindgen) that exposes the Cypher / GQL frontend agent op surface as JavaScript callables (spec 0004 §4).18Apache-2.0 OR MITDatabase interfacesDevelopment tools::Debugging cyrup_releaseProduction-quality release management for Rust workspaces279MIT OR Apache-2.0Command line utilitiesDevelopment tools cyrup_sugarsMain crate providing syntactic sugar and utilities for Rust development3,524MIT OR Apache-2.0Data structuresDevelopment tools cyrup_termcolorA simple cross platform library for writing colored text to a terminal. (CYRUP.ai fork with compatibility fixes)3,732Unlicense OR MIT cysphereA cyber sphere environment for every agentic AI.24BSD-3-Clause cyt-indexerTool schema decomposition and catalog indexing for MCP tool gating1,401Apache-2.0Command line utilitiesDevelopment tools cyt2b6Peripheral access crate for cyt2b6 T2G family1,571non-standardEmbedded developmentNo standard library cyt2b6_dPeripheral access crate for cyt2b6_d T2G family2,419non-standardEmbedded developmentNo standard library cyt2b7Peripheral access crate for cyt2b7 T2G family1,732non-standardEmbedded developmentNo standard library cyt2b7_dPeripheral access crate for cyt2b7_d T2G family2,577non-standardEmbedded developmentNo standard library cyt2b9Peripheral access crate for cyt2b9 T2G family1,567non-standardEmbedded developmentNo standard library cyt2b9_cPeripheral access crate for cyt2b9_c T2G family2,666non-standardEmbedded developmentNo standard library cyt2blPeripheral access crate for cyt2bl T2G family1,581non-standardEmbedded developmentNo standard library cyt2bl_aPeripheral access crate for cyt2bl_a T2G family2,446non-standardEmbedded developmentNo standard library cyt2clPeripheral access crate for cyt2cl T2G family1,563non-standardEmbedded developmentNo standard library cyt2cl_aPeripheral access crate for cyt2cl_a T2G family2,432non-standardEmbedded developmentNo standard library cyt3bbPeripheral access crate for cyt3bb T2G family1,569non-standardEmbedded developmentNo standard library cyt3bb_aPeripheral access crate for cyt3bb_a T2G family2,343non-standardEmbedded developmentNo standard library cyt3bb_bPeripheral access crate for cyt3bb_b T2G family2,322non-standardEmbedded developmentNo standard library cyt3dlPeripheral access crate for cyt3dl T2G family1,556non-standardEmbedded developmentNo standard library cyt3dl_aPeripheral access crate for cyt3dl_a T2G family2,362non-standardEmbedded developmentNo standard library cyt3dl_bPeripheral access crate for cyt3dl_b T2G family2,332non-standardEmbedded developmentNo standard library cyt3dl_cPeripheral access crate for cyt3dl_c T2G family2,371non-standardEmbedded developmentNo standard library cyt4bbPeripheral access crate for cyt4bb T2G family1,565non-standardEmbedded developmentNo standard library cyt4bb_aPeripheral access crate for cyt4bb_a T2G family2,271non-standardEmbedded developmentNo standard library cyt4bb_bPeripheral access crate for cyt4bb_b T2G family2,349non-standardEmbedded developmentNo standard library cyt4bfPeripheral access crate for cyt4bf T2G family1,573non-standardEmbedded developmentNo standard library cyt4bf_cPeripheral access crate for cyt4bf_c T2G family2,357non-standardEmbedded developmentNo standard library cyt4bf_dPeripheral access crate for cyt4bf_d T2G family2,379non-standardEmbedded developmentNo standard library cyt4dnPeripheral access crate for cyt4dn T2G family1,580non-standardEmbedded developmentNo standard library cyt4dn_aPeripheral access crate for cyt4dn_a T2G family2,387non-standardEmbedded developmentNo standard library cyt4dn_bPeripheral access crate for cyt4dn_b T2G family2,315non-standardEmbedded developmentNo standard library cyt4dn_cPeripheral access crate for cyt4dn_c T2G family2,332non-standardEmbedded developmentNo standard library cyt4enPeripheral access crate for cyt4en T2G family1,610non-standardEmbedded developmentNo standard library cyt4en_aPeripheral access crate for cyt4en_a T2G family2,324non-standardEmbedded developmentNo standard library cyt6bjPeripheral access crate for cyt6bj T2G family1,570non-standardEmbedded developmentNo standard library cyt6bj_aPeripheral access crate for cyt6bj_a T2G family2,342non-standardEmbedded developmentNo standard library cythanThe Cythan machine implementation in Rust1,746Apache-2.0 cytoUltra high-throughput processing of 10x-flex single-cell sequencing data322BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-cliUltra high-throughput processing of 10x-flex single-cell sequencing data1,285BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-coreUltra high-throughput processing of 10x-flex single-cell sequencing data431BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-downloadUltra high-throughput processing of 10x-flex single-cell sequencing data202BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-barcode-correctUltra high-throughput processing of 10x-flex single-cell sequencing data108BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-catUltra high-throughput processing of 10x-flex single-cell sequencing data320BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-countUltra high-throughput processing of 10x-flex single-cell sequencing data414BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-readsUltra high-throughput processing of 10x-flex single-cell sequencing data413BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-sortUltra high-throughput processing of 10x-flex single-cell sequencing data438BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-umi-correctUltra high-throughput processing of 10x-flex single-cell sequencing data436BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ibu-viewUltra high-throughput processing of 10x-flex single-cell sequencing data321BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-ioUltra high-throughput processing of 10x-flex single-cell sequencing data1,270BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-mapUltra high-throughput processing of 10x-flex single-cell sequencing data468BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-viewUltra high-throughput processing of 10x-flex single-cell sequencing data90BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cyto-workflowUltra high-throughput processing of 10x-flex single-cell sequencing data338BSD-3-ClauseCommand line utilitiesScience::Bioinformatics cytogonMesh generation library based on cellular automata1,159MIT OR Apache-2.0 cytosA collection of frequently used Bioinformatics scripts/tasks written in Rust.5,229GPL-3.0 cytron_maker_pi_rp2040Board Support Package for the Cytron Maker Pi RP204011,582Apache-2.0 OR MIT cytrynaA library for handling 3DS file types4,058non-standard cyusbHost crate for interacting with Cypress USB devices3,218Apache-2.0 cyw43Rust driver for the CYW43439 WiFi chip, used in the Raspberry Pi Pico W.91,854MIT OR Apache-2.0AsynchronousEmbedded development cyw43-bitbangCrate name reserved1,602MIT OR Apache-2.0Embedded developmentNo standard library cyw43-firmwareCYW43xx WiFi and Bluetooth Firmware Blobs6,261non-standard cyw43-pioRP2040 PIO SPI implementation for cyw4398,764MIT OR Apache-2.0AsynchronousEmbedded development cyw43-setupWrapper pour cyw43-firmware exposant FW, CLM et NVRAM comme constantes prêtes à l'emploi, sans gestion de fichiers ni…87UnlicenseEmbedded developmentNo standard library cyw43-spiCrate name reserved1,572MIT OR Apache-2.0Embedded developmentNo standard library cyware-convertEncoding library for web security applications1,517MIT cyxFast, simple command-line security tool powered by AI. Install with cargo, setup in 30 seconds.204MITCommand line utilitiesDevelopment tools czcz33MIT czaCLI tool for scaffolding zero-knowledge application projects3,853MIT OR Apache-2.0Command line utilitiesDevelopment tools czasConvert timestamps into localized text4,067MIT OR Apache-2.0Date and timeInternationalization (i18n) czdbA pure Rust library for parsing CZDB-format IP databases.2,877MITParsing toolsScience::Geospatial czdb-rs一个高性能的纯真IP社区版的 Rust 实现，并且支持 NodeJs(Bun) 的WASM调用库。|A high-performance Rust implementation of CZDB searcher with WASM support.47Apache-2.0 czech-addressesParses the Czech Republic addresses provided by RUIAN.1,978MIT OR Apache-2.0 czh-http-serverA simple http server4,056MIT czhmta threadpool3,811MIT OR Apache-2.0 czi-rsPure Rust reader for Zeiss CZI microscopy files936MIT OR Apache-2.0Multimedia::ImagesParser implementations czkawka-dupes-to-symlinksSafely turn Czkawka duplicate reports into space-saving symlinks78MIT OR Apache-2.0Command line utilitiesFilesystem czkawka_cliCLI frontend of Czkawka42,917MIT czkawka_coreCore of Czkawka app54,266MIT czkawka_guiGTK frontend of Czkawka45,447MIT czkawka_gui_orbtkOrbtk frontend of Czkawka11,582MIT czl-helloA Project for learning cargo2,733MIT czl-hello-cargoA short description of my package1,519MIT czmlA library for serializing/deserializing CZML content12,980MIT czmqHigh-level bindings to the CZMQ library6,345MIT/Apache-2.0 czmq-sysLow-level bindings to the CZMQ library11,990MIT/Apache-2.0 czoA short description of my package2,700MIT czorA tmux layout manager15MITCommand line utilities czsc★ Recommended entry point ★ — czsc (缠中说禅) facade crate; re-exports the full Rust workspace (core/utils/ta/signals/trader) so a…78MITFinanceMathematics czsc-coreCore analyzer of the czsc framework (most users should depend on the `czsc` facade instead): fractal (FX), stroke (BI), pivot…224MITFinanceMathematics czsc-deriveInternal proc-macro of the czsc framework (普通用户请用 `czsc` facade): #[derive(CZSCErrorDerive)] auto-implements From<anyhow::Error>…244MITDevelopment tools::Procedural macro helpersRust patterns czsc-signal-macrosInternal proc-macro of the czsc framework (普通用户请用 `czsc` facade): #[signal] / #[signal_module] for compile-time registration of…182MITDevelopment tools::Procedural macro helpers czsc-signalsQuantitative signal functions of the czsc framework (most users should depend on the `czsc` facade instead):…157MITFinanceMathematics