BROWSE A-Z

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.

cowpUnofficial Rust client for the CoW Protocol API (cowp)268MITAPI bindingsWeb programming cowprotocolRust SDK for CoW Protocol: orderbook client, EIP-712 order types, signing, and composable-order primitives.1,300GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cowprotocol-appdataCoW Protocol app-data document and digest helpers.1,242GPL-3.0-or-laterCryptography::CryptocurrenciesEncoding cowprotocol-orderbookCoW Protocol orderbook DTOs, quote builders, and HTTP client.1,226GPL-3.0-or-laterAPI bindingsCryptography::Cryptocurrencies cowprotocol-primitivesPrimitive CoW Protocol chain, domain, order, and contract types.1,293GPL-3.0-or-laterCryptography::CryptocurrenciesData structures cowprotocol-signingCoW Protocol signing schemes, signatures, and cancellation helpers.1,239GPL-3.0-or-laterAuthenticationCryptography::Cryptocurrencies cowrcA set of copy-on-write smart pointers.8,228MIT cowriecowrie rust sdk1,671MIT cowrie-rsCowrie - Structured JSON binary format with Gen1 and Gen2 codecs57MITData structuresEncoding cowryA micro-library for precise currency math and rounding control in Rust.749MIT OR Apache-2.0FinanceMathematics cowsaycowsay is a program that generates ASCII art pictures of a cow with a message.10,041MIT cowstrCopy-on-Write shared strings161,926MIT OR Apache-2.0Rust patterns cowswapUnofficial Rust client for the CoW Protocol (CowSwap) API15MITAPI bindingsWeb programming cowsyncCLI tool to sync directories using copy-on-write with include/exclude pattern support.20MITCommand line utilitiesFilesystem cowvecFaster version of `Cow<[T]>` and `Cow<str>`5,062Unlicense cowverta flexible data container supporting owned, reference-counted, and copy-on-write semantics. designed for use in interpreters1,471MIT OR Apache-2.0Data structuresMemory management cox-hazardsA Rust library for Cox proportional hazards regression with elastic net regularization1,001MITAlgorithmsScience COXaveInstruments for codings11,792non-standardEncodingInternationalization (i18n) coxenCoxen — placeholder. Reserved for the Coxen Rust SDK; a next-generation job scheduler in design.16GPL-3.0-or-laterAsynchronous coyonedaFunctor composition via the Co-Yoneda Lemma16,097MIT OR Apache-2.0 coyoquilZero-copy WebSocket frame codec and handshake (RFC 6455)133MITNetwork programmingWeb programming::WebSocket coyoteEmbeddable ACME server with programmable challenges and storage5,029BSD-3-Clause coyote-aiAn all-in-one, batteries included LLM CLI Tool191AGPL-3.0-onlyCommand line utilities coyote-buildExplicit project building tool1,534MIT OR Apache-2.0Command line utilitiesDevelopment tools coyotesAn HTML component set and template processor169BSD-3-ClauseTemplate engineWeb programming coyotla noise generator library1,292MIT cozRust support for the `coz` Causal Profiler: https://github.com/plasma-umass/coz889,769non-standard coz-cliCLI for Coz cryptographic JSON messaging62BSD-3-Clause coz-rsCoz cryptographic JSON messaging specification1,047BSD-3-ClauseAuthenticationCryptography coz-temporaryRust support for the `coz` Causal Profiler: https://github.com/plasma-umass/coz1,840non-standard cozad-union-findAn implementation of the union-find disjoint set graph algorithm4,234MIT cozaldeterministic game event pipeline with isolated configurable components3,118MIT cozeAn egui app for playing with a local open source LLM.12,961Apache-2.0 cozoA general-purpose, transactional, relational database that uses Datalog and focuses on graph data and algorithms96,205MPL-2.0 cozo-ceA general-purpose, transactional, relational database that uses Datalog and focuses on graph data and algorithms12,678MPL-2.0 cozo-ce-binStandalone Cozo database6,321MPL-2.0 cozorocksBindings to RocksDB used by the cozo crate20,411MPL-2.0 cozyA Comfort First terminal text editor: type like nano, navigate like vim362MIT OR Apache-2.0Command line utilitiesText editors cozy-chessRust Chess and Chess960 move generation library48,629MITGamesNo standard library cozy-chess-typesDo not use! Internal library for cozy-chess.42,193MIT cpcp48MIT cp-adaptersKnowledge adapter generation and composition via hypernetwork-produced LoRA weights23AGPL-3.0 cp-arweavePermanent storage layer for Canon Protocol — censorship-resistant knowledge distribution via Arweave192AGPL-3.0Artificial intelligenceEncoding cp-ast-coreCore AST types for competitive programming problem specification DSL191MIT cp-ast-jsonLossless JSON serialization boundary for cp-ast-core AST140MIT cp-compressDCT-based embedding compression for Canon Protocol (CP-016)259AGPL-3.0 cp-coreCore utilities for SimpleG41,325MIT cp-curveConstant-product (x*y=k) AMM curve math primitives for Solana programs46MIT OR Apache-2.0Cryptography::CryptocurrenciesMathematics cp-desktopCanon node ingestion pipeline — local-first AI knowledge management with anonymous sync37AGPL-3.0Artificial intelligenceDatabase interfaces cp-embeddingsLocal embedding generation using GTE-Qwen2-1.5B-instruct via Candle — private, on-device AI inference290AGPL-3.0Artificial intelligenceScience cp-graphKnowledge graph and vector store425AGPL-3.0 cp-microserviceTemplate for Cuplan's microservices61,370MIT cp-parserDocument parsing for PDF, Markdown, and text files214AGPL-3.0 cp-progressLinux-only progress wrapper around the system cp12MITCommand line utilities cp-queryHybrid semantic+lexical RAG query engine with Merkle proof verification for Canon Protocol213AGPL-3.0AlgorithmsArtificial intelligence cp-rsCompetitive programming library, especially for AoC6,346MIT cp-syncMerkle tree, cognitive diffs, and crypto356AGPL-3.0 cp-testerA command line tool to test competitive programming problems quickly and locally6,359MITCommand line utilities cp-torAnonymous search protocol over Tor for Canon Protocol (CP-013)329AGPL-3.0 cp-validatorValidator protocol for empirical quality verification (CP-015)38AGPL-3.0 cp-verify-wasmBrowser-side proof receipt verification for Canon Protocol37MIT cp211x_uartHID-to-UART driver for CP2110/CP2114 chipset11,244MITHardware support cp2k-rsRust bindings for CP2K with Python interface517GPL-2.0-or-laterAPI bindingsScience cp437Module for MSDOS (CP437) Encoding22,104MIT cp437-toolsSmall collection of tools to handle CP437 files22,177GPL-3.0-or-later AND CC-BY-SA-4.0Command line utilitiesMultimedia::Images cp437_constantsDefined constants covering the entirety of ASCII code page 437 (https://en.wikipedia.org/wiki/Code_page_437)3,984MIT cp_apiCheck Point API library16,096MIT OR Apache-2.0 cp_docsA small tool to find and copy docs/ directories recursively312MIT OR Apache-2.0Command line utilities cp_libCompetitive programming library for my own use5,682MIT cp_rCopy files and directories recursively, preserving mtime and permissions152,537MITFilesystem cp_satRust bindings to the Google CP-SAT constraint programming solver.25,337Apache-2.0API bindingsMathematics cp_tricksTricks for competitive programming. Do not use this crate.1,700MIT cpa-catCarry-propagate adder built on comp-cat-rs and hdl-cat: parallel prefix networks as free category morphisms19MIT OR Apache-2.0Hardware supportMathematics cpa2Advanced copier - with -c flag, EXISTING files get auto-numbered19MITCommand line utilitiesFilesystem cpaceAn implementation of the CPace password-authenticated key exchange (PAKE).1,982BSD-3-Clause cpalLow-level cross-platform audio I/O library.16,525,373Apache-2.0 cpammSencha constant-product automated market maker.13,052AGPL-3.0 cparA commmand line utility that allows for batch coping & renaming with globs.2,762MITCommand line utilities cpastRun custom testcase with powerful clex language powered generated tool. Ideal for competitive coders. Can test two file and pass…32,470GPL-3.0-or-laterCommand line utilitiesCompilers cpba faster, simpler alternative to cp42non-standard cpcevaluates math expressions, with support for units and conversion between units100,423MITMathematicsParsing tools cpc-bip39A Rust implementation of BIP-00392,331MIT/Apache-2.0 cpc_loggerLogger library2,743MIT cpcaChinese Province, City and Area Parser - 中国省市区地址解析库69MITLocalization (L10n)Text processing cpcalendarsReally simple CLI app to copy Mac OS Calendar.app calendars sources to other location3,089non-standardCommand line utilities cpchain-rust-sdkRust SDK for CPChain Ecosystem25,030Apache-2.0 cpclibSet of tools and libraries to ease demomaking on the Amstrad CPC platform. WIP43,581MITCommand line utilitiesDevelopment tools cpclib-asmcpclib libraries related to z80 assembling25,634MIT cpclib-basiccpclib libraries related to locomotive basic23,142MIT cpclib-basmz80 assembler relying on cpclib-asm10,467MIT cpclib-bdasmZ80 disassembler. Still contains some bugs.8,530MIT cpclib-bndbuildAmstrad CPC project builder. Biased towards basm, but can still work with any tool5,406MIT cpclib-commoncommon libraries used in cpclib21,056MIT cpclib-cprcpclib libraries related to CPR handling8,820MIT cpclib-cprcliCommand line tool to manipulate CPRg3,138MIT cpclib-crunchCruncher for Amstrad CPC projects.651MIT cpclib-cruncherscrunchers that are used in cpc world10,186MIT cpclib-disccpclib libraries related to snapshots27,493MIT cpclib-filesAmstrad CPC crossdev toolchain2,549MIT cpclib-imageImage manipulation library for amstrad cpc17,378MIT cpclib-imgconverterImage manipulation tool for amstrad CPC7,274MIT cpclib-macroscpclib macros related to z80 assembling15,519MIT cpclib-runnerDependency for various cpclib crates to help running external applications (mostly assemblers or emulators)1,875MIT cpclib-snacpclib libraries related to snapshots27,335MIT cpclib-sprite-compilerAmstrad CPC crossdev toolchain1,087MIT cpclib-tokenscpclib libraries related to assembly tokens. Only structures are provided there. Intelligence is within cpclib-asm26,488MIT cpclib-visual-bndbuildAmstrad CPC project builder. Biased towards basm, but can still work with any tool. This is the graphical version.2,474MIT cpclib-wasmwebasm tools for cpclib3,893MIT cpclib-xfercpclib libraries related to snapshots17,873MIT cpclib-xfertoolcpclib tool related to xfer15,188MIT cpclib-z80emucpclib libraries related to snapshots15,650MIT cpdCollaboration Pattern Detection: A tool to search for context-aware and relaxed frequent subgraphs (patterns) in a graph database497MITAlgorithmsCommand line utilities cpd-coreCore data models and hashing for cpd1,486MIT cpd-finderFile walking and clone detection for cpd1,435MIT cpd-reporterOutput format reporters for cpd1,124MIT cpd-tokenizerSource code tokenizers for cpd1,456MIT cpdb-rsSafe Rust bindings for OpenPrinting cpdb-libs — Common Print Dialog Backends40MITAPI bindingsAsynchronous cpdb-sysLow-level FFI bindings for OpenPrinting cpdb-libs (Common Print Dialog Backends). See cpdb-rs for the high-level API.51MITAPI bindingsExternal FFI bindings cpdirCommand-line utility for copying directory structure between two locations.1,533MITCommand line utilities cpeCPE 2.2 and 2.3 handling in Rust88,523MIT OR Apache-2.0 cpe_explorerAn exploration tool for the NVD cpe dict2,069MPL-2.0 cpeakA minimal and fast Rust HTTP framework — port of the cpeak Node.js framework18MITWeb programming::HTTP server cpexCPEX host facade — re-exports the runtime and (optionally) the feature-gated builtin extensions.1,722Apache-2.0Development tools cpex-builtinsCPEX built-in plugins, PDPs, and session stores with feature-gated registration.1,533Apache-2.0Development tools cpex-coreCPEX plugin runtime core — PluginManager, executor, hooks, and config.1,988Apache-2.0Development tools cpex-orchestrationAsync concurrency primitives shared by the CPEX runtime2,046Apache-2.0Development tools cpex-pdp-cedar-directCPEX PDP — Amazon Cedar policy evaluation.1,565Apache-2.0Development tools cpex-pdp-celCPEX PDP — CEL (Common Expression Language) predicate evaluation.1,560Apache-2.0Development tools cpex-plugin-audit-loggerCPEX CMF plugin — structured per-request audit logging.1,564Apache-2.0Development tools cpex-plugin-delegator-biscuitCPEX delegation handler — Biscuit capability-token attenuation.107Apache-2.0Development tools cpex-plugin-delegator-oauthCPEX delegation handler — RFC 8693 OAuth 2.0 token exchange.1,567Apache-2.0Development tools cpex-plugin-elicitation-cibaCPEX elicitation handler — OIDC CIBA human-in-the-loop approval.26Apache-2.0Development tools cpex-plugin-identity-jwtCPEX identity handler — JWT validation and claim mapping.1,574Apache-2.0Development tools cpex-plugin-pii-scannerCPEX CMF plugin — detects and redacts PII (SSN, credit card, email) in tool/prompt args.1,562Apache-2.0Development tools cpex-sdkCPEX plugin author SDK — Plugin trait, payloads, and result types.106Apache-2.0Development tools cpex-session-valkeyCPEX session store — Valkey/Redis-backed distributed session labels.1,536Apache-2.0Development tools cpfBrazilian CPF parsing, validating and formatting library.37,634MITNo standard library cpf_cnpjValidador de CPF e CNPJ para Rust.131,560MIT cpf_utilFormat and validate CPF, Brazil's ID number.3,288MIT OR Apache-2.0No standard libraryParser implementations cpga CLI that consistently generates passwords given the same input.2,992MIT cpg-rsA Rust library for working with Code Property Graphs (CPG)779Apache-2.0Development toolsParsing tools cphPlaceholder for cph.rs19CC-BY-NC-4.0 cphdComplex Phase History Data parser22MIT cphfCompile-time perfect hash function data structures3,723MITData structuresNo standard library cpiA cli for copying files with ignore-files applied3,031MIT cpioAn API for creating CPIO archives1,176,524MIT cpio-archivecpio archive reading and writing5,540,044MPL-2.0 cpio_readerA library to read the contents of cpio files112,610MIT OR Apache-2.0No standard library cpiotoolsDump a CPIO's structure for easy comparisons1,526MIT cpipeContext-Pipe high-performance Rust orchestrator and library144Apache-2.0Command line utilitiesDevelopment tools cpkgA dead simple C package manager.7,637MITCommand line utilitiesConfiguration cpkg-binThe cross-platform meta package manager1,142MIT cplatA tool to copy the latest file from Downloads folder1,522MIT OR Apache-2.0Command line utilities cplex-rsBinding of IBM Cplex library11,960MIT OR Apache-2.0 cplex-rs-sysFFI bindings to cplex12,332MIT OR Apache-2.0 cplex-sysLow level bindings to the Cplex C-API21,843MITAPI bindings cplex_dynamicBinding of IBM Cplex dynamic/shared library, modified based on `rplex`.3,319MIT OR Apache-2.0Science::Robotics cplitCompetitive Programming Library in Rust12,876MIT cploggerLogger targeted to be cross-platform compatible5,028GPL-3.0-or-later cplus_demangleRust wrapper for GNU libiberty's cplus_demangle to demangle C++ symbols5,444MIT OR Apache-2.0 cplxComplex and hypercomplex numbers16,100MIT OR Apache-2.0 cpmArchlinux pacman set the fastest mirror source3,926MITCommand line utilities cpm-plannerCritical Path Method (CPM) planner exposed as an MCP server: schedules a task graph (earliest/latest start, slack, critical path,…18Apache-2.0Command line utilitiesDevelopment tools cpm-rsSimple Critical Path Method crate.8,309MIT cpm2A command-line utility written in Rust that copies file paths to the clipboard with various formatting options and sends…26MITCommand line utilities cpmkA simple C/C++ CLI Project Maker including CMake9,877MITCommand line utilities cpmpComputer Project Mapping Protocol — scanner, capability classification, projection, receipts.52MIT cpnCalculate and Process Numbers2,972ISCCommand line utilitiesScience cpnetsA Colored Petri Net library2,7550BSD cpnttAn implementation of Number Theoretic Transform for competitive programming1,829CC0-1.0 cpo_analyzerTools to analyzer Crystal Preferred Orientation data, including creating polefigures.2,012GPL-2.0-or-laterScience cpoolA set of types for connection pool.343MIT cppInline C++ code closures12,614,590MIT OR Apache-2.0Development tools::FFI cpp-amalgamatecpp-amalgamate recursively combines C++ source files and the headers they include into a single output file.3,463MITCommand line utilitiesDevelopment tools cpp-include-insightC/C++ include impact analyzer for pull requests, refactoring, and build-time optimization.87MIT cpp-include-insight-coreC/C++ include impact analyzer for pull requests, refactoring, and build-time optimization.127MIT cpp-inheritMacros for enabling you to subclass a Rust struct from a C++ class3,076MIT cpp-like-newA library that allows you to create/destroy objects in Rust in a similar way to using new/delete expressions in C++1,569MIT OR Apache-2.0 cpp-linterRun clang-format and clang-tidy on a batch of files.10,703MITCommand line utilitiesDevelopment tools cpp-packA simple program to zip C++ projects for university assignments.2,759MIT cpp-typecheckType check a C++ source file with a clang compilation database21,725BSD-3-Clause cpp-vwrap-gengenerate wrappers around c++ virtual classes and constructors/destructors.3,371MIT OR Apache-2.0 cpp2rust-demoC++ to Rust Safe FFI scaffolding generator — auto-generates hicc-based FFI bindings from C++ source via LD_PRELOAD build capture…31MIT OR Apache-2.0Development toolsExternal FFI bindings cpp_api_to_rustName squatting. Contact cramertj@google.com for usage.314Apache-2.0 cpp_buildCargo build script for the `cpp` crate12,682,837MIT OR Apache-2.0Development tools::FFI cpp_codegenGenerate Code from C++ classes4,015MIT cpp_commonImplementation details crate for the `cpp` crate13,121,686MIT OR Apache-2.0Development tools::FFI cpp_coreUtilities for interoperability with C++84,688MIT OR Apache-2.0 cpp_demangleA crate for demangling C++ symbols85,946,259MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::FFI cpp_macrosProcedural macro implementation for the `cpp` crate12,502,012MIT OR Apache-2.0Development tools::FFI cpp_mapA simple C++ std::map emulator19,860MIT OR Apache-2.0 cpp_newOverload C++ new/delete to map them back to Rust's global allocator1,916CC0-1.0 cpp_new_simple_cpp_libTest crate required for cpp_new2,780CC0-1.0 cpp_oopcpp inheritance with vtables "cpp ABI"12,196MIT cpp_oop_macroshelper crate for 'oop_cpp' crate12,391MIT cpp_regexpcpp std::regex11,634MIT OR Apache-2.0 cpp_rs[Not currently ready] A C Preprocessor library and associated binary.1,907MIT/Apache-2.0 cpp_stdBindings for C++ standard library24,634MIT OR Apache-2.0External FFI bindings cpp_streamsC++ style streams for stdin/stdout1,540MIT cpp_synInternal rust-cpp nom parser for Rust source code583,206MIT/Apache-2.0