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)268MIT
cowprotocolRust SDK for CoW Protocol: orderbook client, EIP-712 order types, signing, and composable-order primitives.1,300GPL-3.0-or-later
cowprotocol-appdataCoW Protocol app-data document and digest helpers.1,242GPL-3.0-or-later
cowprotocol-orderbookCoW Protocol orderbook DTOs, quote builders, and HTTP client.1,226GPL-3.0-or-later
cowprotocol-primitivesPrimitive CoW Protocol chain, domain, order, and contract types.1,293GPL-3.0-or-later
cowprotocol-signingCoW Protocol signing schemes, signatures, and cancellation helpers.1,239GPL-3.0-or-later
cowrcA set of copy-on-write smart pointers.8,228MIT
cowriecowrie rust sdk1,671MIT
cowrie-rsCowrie - Structured JSON binary format with Gen1 and Gen2 codecs57MIT
cowryA micro-library for precise currency math and rounding control in Rust.749MIT OR Apache-2.0
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-2.0
cowswapUnofficial Rust client for the CoW Protocol (CowSwap) API15MIT
cowsyncCLI tool to sync directories using copy-on-write with include/exclude pattern support.20MIT
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-2.0
cox-hazardsA Rust library for Cox proportional hazards regression with elastic net regularization1,001MIT
COXaveInstruments for codings11,792non-standard
coxenCoxen — placeholder. Reserved for the Coxen Rust SDK; a next-generation job scheduler in design.16GPL-3.0-or-later
coyonedaFunctor composition via the Co-Yoneda Lemma16,097MIT OR Apache-2.0
coyoquilZero-copy WebSocket frame codec and handshake (RFC 6455)133MIT
coyoteEmbeddable ACME server with programmable challenges and storage5,029BSD-3-Clause
coyote-aiAn all-in-one, batteries included LLM CLI Tool191AGPL-3.0-only
coyote-buildExplicit project building tool1,534MIT OR Apache-2.0
coyotesAn HTML component set and template processor169BSD-3-Clause
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-Clause
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-2.0
cozy-chessRust Chess and Chess960 move generation library48,629MIT
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-3.0
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-2.0
cp-desktopCanon node ingestion pipeline — local-first AI knowledge management with anonymous sync37AGPL-3.0
cp-embeddingsLocal embedding generation using GTE-Qwen2-1.5B-instruct via Candle — private, on-device AI inference290AGPL-3.0
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 cp12MIT
cp-queryHybrid semantic+lexical RAG query engine with Merkle proof verification for Canon Protocol213AGPL-3.0
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 locally6,359MIT
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 chipset11,244MIT
cp2k-rsRust bindings for CP2K with Python interface517GPL-2.0-or-later
cp437Module for MSDOS (CP437) Encoding22,104MIT
cp437-toolsSmall collection of tools to handle CP437 files22,177GPL-3.0-or-later AND CC-BY-SA-4.0
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-2.0
cp_libCompetitive programming library for my own use5,682MIT
cp_rCopy files and directories recursively, preserving mtime and permissions152,537MIT
cp_satRust bindings to the Google CP-SAT constraint programming solver.25,337Apache-2.0
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-2.0
cpa2Advanced copier - with -c flag, EXISTING files get auto-numbered19MIT
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.2,762MIT
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-later
cpba faster, simpler alternative to cp42non-standard
cpcevaluates math expressions, with support for units and conversion between units100,423MIT
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69MIT
cpcalendarsReally simple CLI app to copy Mac OS Calendar.app calendars sources to other location3,089non-standard
cpchain-rust-sdkRust SDK for CPChain Ecosystem25,030Apache-2.0
cpclibSet of tools and libraries to ease demomaking on the Amstrad CPC platform. WIP43,581MIT
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 database497MIT
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 Backends40MIT
cpdb-sysLow-level FFI bindings for OpenPrinting cpdb-libs (Common Print Dialog Backends). See cpdb-rs for the high-level API.51MIT
cpdirCommand-line utility for copying directory structure between two locations.1,533MIT
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 framework18MIT
cpexCPEX host facade — re-exports the runtime and (optionally) the feature-gated builtin extensions.1,722Apache-2.0
cpex-builtinsCPEX built-in plugins, PDPs, and session stores with feature-gated registration.1,533Apache-2.0
cpex-coreCPEX plugin runtime core — PluginManager, executor, hooks, and config.1,988Apache-2.0
cpex-orchestrationAsync concurrency primitives shared by the CPEX runtime2,046Apache-2.0
cpex-pdp-cedar-directCPEX PDP — Amazon Cedar policy evaluation.1,565Apache-2.0
cpex-pdp-celCPEX PDP — CEL (Common Expression Language) predicate evaluation.1,560Apache-2.0
cpex-plugin-audit-loggerCPEX CMF plugin — structured per-request audit logging.1,564Apache-2.0
cpex-plugin-delegator-biscuitCPEX delegation handler — Biscuit capability-token attenuation.107Apache-2.0
cpex-plugin-delegator-oauthCPEX delegation handler — RFC 8693 OAuth 2.0 token exchange.1,567Apache-2.0
cpex-plugin-elicitation-cibaCPEX elicitation handler — OIDC CIBA human-in-the-loop approval.26Apache-2.0
cpex-plugin-identity-jwtCPEX identity handler — JWT validation and claim mapping.1,574Apache-2.0
cpex-plugin-pii-scannerCPEX CMF plugin — detects and redacts PII (SSN, credit card, email) in tool/prompt args.1,562Apache-2.0
cpex-sdkCPEX plugin author SDK — Plugin trait, payloads, and result types.106Apache-2.0
cpex-session-valkeyCPEX session store — Valkey/Redis-backed distributed session labels.1,536Apache-2.0
cpfBrazilian CPF parsing, validating and formatting library.37,634MIT
cpf_cnpjValidador de CPF e CNPJ para Rust.131,560MIT
cpf_utilFormat and validate CPF, Brazil's ID number.3,288MIT OR Apache-2.0
cpga CLI that consistently generates passwords given the same input.2,992MIT
cpg-rsA Rust library for working with Code Property Graphs (CPG)779Apache-2.0
cphPlaceholder for cph.rs19CC-BY-NC-4.0
cphdComplex Phase History Data parser22MIT
cphfCompile-time perfect hash function data structures3,723MIT
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-2.0
cpiotoolsDump a CPIO's structure for easy comparisons1,526MIT
cpipeContext-Pipe high-performance Rust orchestrator and library144Apache-2.0
cpkgA dead simple C package manager.7,637MIT
cpkg-binThe cross-platform meta package manager1,142MIT
cplatA tool to copy the latest file from Downloads folder1,522MIT OR Apache-2.0
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-API21,843MIT
cplex_dynamicBinding of IBM Cplex dynamic/shared library, modified based on `rplex`.3,319MIT OR Apache-2.0
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 source3,926MIT
cpm-plannerCritical Path Method (CPM) planner exposed as an MCP server: schedules a task graph (earliest/latest start, slack, critical path,…18Apache-2.0
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…26MIT
cpmkA simple C/C++ CLI Project Maker including CMake9,877MIT
cpmpComputer Project Mapping Protocol — scanner, capability classification, projection, receipts.52MIT
cpnCalculate and Process Numbers2,972ISC
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-later
cpoolA set of types for connection pool.343MIT
cppInline C++ code closures12,614,590MIT OR Apache-2.0
cpp-amalgamatecpp-amalgamate recursively combines C++ source files and the headers they include into a single
output file.3,463MIT
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.10,703MIT
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-2.0
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-2.0
cpp_codegenGenerate Code from C++ classes4,015MIT
cpp_commonImplementation details crate for the `cpp` crate13,121,686MIT OR Apache-2.0
cpp_coreUtilities for interoperability with C++84,688MIT OR Apache-2.0
cpp_demangleA crate for demangling C++ symbols85,946,259MIT OR Apache-2.0
cpp_macrosProcedural macro implementation for the `cpp` crate12,502,012MIT OR Apache-2.0
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-2.0
cpp_streamsC++ style streams for stdin/stdout1,540MIT
cpp_synInternal rust-cpp nom parser for Rust source code583,206MIT/Apache-2.0