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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.

clap_autodocAuto-generate markdown documentation tables from clap configuration structs1,997MIT OR Apache-2.0 clap_bashClap argument parsing for bash-builtins.170Apache-2.0 clap_builderA simple to use, efficient, and full-featured Command Line Argument Parser627,869,670MIT OR Apache-2.0 Command-line interface clap_builder_cryoA simple to use, efficient, and full-featured Command Line Argument Parser15,811MIT OR Apache-2.0 Command-line interface clap_completeGenerate shell completion scripts for your clap::Command96,055,436MIT OR Apache-2.0 Command-line interface clap_complete_clinkGenerate Clink completion scripts for clap400MIT Command-line interface clap_complete_commandReduces boilerplate for adding a shell completion command to Clap8,097,422MIT Command-line interface clap_complete_figA generator library used with clap for Fig completion scripts4,643,031MIT OR Apache-2.0 Command-line interface clap_complete_nushellA generator library used with clap for Nushell completion scripts12,121,639MIT OR Apache-2.0 Command-line interface clap_confA library to unify commandline arguments with config files and environment variables. And make it easier for users to tell your…41,644MIT clap_configAutomatically merge CLI args, environment variables, config files, and default values in clap apps.12,889MIT OR Apache-2.0 Command line utilities clap_cryoA simple to use, efficient, and full-featured Command Line Argument Parser15,328MIT OR Apache-2.0 Command-line interface clap_deriveParse command line argument by defining a struct, derive crate.646,909,159MIT OR Apache-2.0 Command-line interface Development tools::Procedural macro helpers clap_derive-v3Parse command line argument by defining a struct, derive crate.80,750MIT OR Apache-2.0 Command-line interface Development tools::Procedural macro helpers clap_derive_cryoParse command line argument by defining a struct, derive crate.15,837MIT OR Apache-2.0 Command-line interface Development tools::Procedural macro helpers clap_describeAdd --describe flag to clap subcommands for structured command schema output110MIT Command-line interface Development tools clap_doc_generatorAutomatically generate CLI documentation from clap definitions and update readme files95MIT Command line utilities clap_flagsCollection of reusable flags for Clap17,846MIT OR Apache-2.0 clap_fmtSerialize a clap arg parser into the command-line arguments.574MIT clap_generateRenamed to clap_complete597,061MIT OR Apache-2.0 Command-line interface clap_generate_figRenamed to clap_complete_fig31,184MIT OR Apache-2.0 Command-line interface clap_jobs_argGive your clap parser a --jobs argument531ISC clap_lexMinimal, flexible command line parser751,937,596MIT OR Apache-2.0 Command-line interface clap_lex_cryoMinimal, flexible command line parser16,255MIT OR Apache-2.0 Command-line interface clap_loggerenv_logger integration for clap5,669AGPL-3.0 Development tools Development tools::Debugging clap_mainA crate to provide a #[clap_main] macro to automatically parse and pass args to your main function113,395GPL-3.0-only clap_mangenA manpage generator for clap12,942,469MIT OR Apache-2.0 Command-line interface clap_reverseDerive macro for building `std::process:Command` from a Rust struct544MIT clap_reverse_deriveInternal subcrate for `clap_reverse` crate718MIT clap_reverse_implInternal subcrate for `clap_reverse` crate869MIT clap_typesGenerate strongly-typed command builders from clap command definitions18MIT OR Apache-2.0 Command-line interface Development tools clap_usageLibrary for working with usage specs52,021MIT clap_web_code_genAutomatically generate web UIs for Rust CLI applications using Clap - maps CLI args to HTML form elements and compiles to WASM92GPL-3.0-only clap_web_macroProcedural macros for clap_web_code_gen - provides the #[web_ui_bind] macro for generating web UI bindings209GPL-3.0-only clapcmdA readline wrapper that allows for creating custom interactive shells, similar to python's cmd module11,369MIT OR Apache-2.0 Command-line interface clapcompclap completion generator as command9,584MIT clapdownGenerate well-structured Markdown documentation from a clap CLI.1,139MIT OR Apache-2.0 Accessibility Command-line interface clapfigRich, layered configuration for Rust CLI apps3,398MIT Command-line interface Configuration clapfig-deriveProcedural macro for deriving clapfig::Schema874MIT clapiA framework for create command-line applications4,344Apache-2.0 clapi-cliAny API, One Command Away™ - Turn any API into simple CLI commands503MIT OR Apache-2.0 API bindings Command line utilities clapi_internalInternal utilities for clapi2,516Apache-2.0 clapi_macrosMacros for clapi3,741Apache-2.0 clapmeParse command line arguments by defining a struct (DEPRECATED).42,505Apache-2.0/MIT Command-line interface clapme_deriveParse command line arguments by defining a struct, derive crate.34,151Apache-2.0/MIT Command-line interface clappconfigClap-based app config boilerplate: set up logging, load config, parse args13,202MIT Command-line interface clappenClap flatten prefix macro447,922MIT OR Apache-2.0 clapperOpinionated command-line utility library1,505MIT OR Apache-2.0 clapper-macroMacros for an opinionated command-line utility library1,103MIT OR Apache-2.0 clapper-playerFFI bindings to libclapper4,541GPL-3.0-or-later clapper-player-gtkRust bindings for the clapper-gtk video player library4,456GPL-3.0-or-later clapper-player-gtk-sysFFI bindings to clapper gtk library4,537GPL-3.0-or-later clapper-player-sysRust bindings for the clapper video player library4,699GPL-3.0-or-later clapper-sysRust bindings for the clapper video player library16GPL-3.0-or-later clappersCommand Line Argument Parsing Particularly Easy, Relatively Straightforward!20,878GPL-2.0-only clapposA simple, flagless version of Clap that uses argument position for assignment with zero dependencies14,460MIT clapsCLIs written in Rust4,464MIT claptrapBring the power of Clap to shell scripts.1,654Apache-2.0 Command line utilities clapzA short description of your crate639MIT claraZksync light client1,475MIT OR Apache-2.0 clara-apiZksync light client1,514MIT OR Apache-2.0 clara-shella shell built for my gnu utils repo and a small rust os2,885GPL-3.0-only clarabelClarabel Conic Interior Point Solver for Rust / Python1,466,308Apache-2.0 Mathematics claraxHigh-performance Rust-Python bindings for Django 5.x — async-first, CPython 3.11+ only154MIT API bindings Development tools::FFI clarax-build-configBuild configuration for the ClaraX ecosystem — CPython 3.11+ only245MIT API bindings Development tools::FFI clarax-coreRust-accelerated serialization and validation for Python — framework-agnostic118MIT API bindings Web programming clarax-djangoHigh-performance Django integration layer — Rust-accelerated serialization, validation, and field mapping for Django 5.x+50MIT API bindings Web programming clarax-ffiCPython 3.11+ C-API bindings for the ClaraX ecosystem200MIT API bindings Development tools::FFI clarax-macrosProc macros for ClaraX — modern Python-Rust bindings201MIT API bindings Development tools::FFI clarax-macros-backendCode generation backend for ClaraX macros242MIT API bindings Development tools::FFI clarenceBuild powerful CLI tools backed by HTTP APIs57MIT Command-line interface Web programming clargsA command-line arguments parsing library.9,130MIT Command-line interface Parsing tools clarifai_grpcThe official Clarifai gRPC Rust client15,855Apache-2.0 API bindings Computer vision clarifyA powerful and flexible JSON validation library for Rust with multi-language support54MIT Internationalization (i18n)Parsing tools clarify-bqAppend-only backup of a Clarify CRM workspace into BigQuery (unofficial)16MIT OR Apache-2.0 Command line utilities clarify-bq-clientInternal support crate for the clarify-bq CLI (Clarify API access); no stability guarantees21MIT OR Apache-2.0 API bindings clarify-bq-sinkInternal support crate for the clarify-bq CLI (BigQuery load jobs); no stability guarantees21MIT OR Apache-2.0 API bindings clarinetClarinet is a clarity runtime packaged as a command line tool, designed to facilitate smart contract understanding, development,…31,334GPL-3.0-only Command line utilities Development tools clarinet-deploymentsClarinet deployments helpers7,432GPL-3.0 clarinet-filesClarinet manifests files helpers15,252GPL-3.0 clarinet-utilsHiro system kit library15,605MIT clarionA library to simplify working with Clarion software data formats.4,917MIT OR Apache-2.0 Data structures Date and time clarisA clean, minimal, and fluent logging framework for Rust.30MIT OR Apache-2.0 Development tools::Debugging clarityLightweight Ethereum client260,880Apache-2.0 clarity-jupyter-kernelJupyter kernel for Clarity3,282GPL-3.0-only Command line utilities Development tools clarity-lintA tool to lint clarity files3,087MIT Command line utilities clarity-lspClarity Language Server6,248GPL-3.0-only Command line utilities Development tools clarity-replClarity REPL128,108GPL-3.0-only Command line utilities Development tools clarity-vmReference implementation of the Clarity virtual machine31,029GPL-3.0-only clark-agentTyped agent loop with typed messages, typed events, swappable LLM transport, and plugin hooks. Provider-agnostic,…306Apache-2.0 Asynchronous clark-hashClark Hash: stateless sparse Johnson-Lindenstrauss sketches for neural embeddings42MIT OR Apache-2.0 Algorithms Data structures clark-platform-clientTyped, async, streaming-capable Rust client for the Clark Platform API38MIT clarsCommand line arguments resolver61MIT OR Apache-2.0 Command line utilities clarusHigh-performance genomic variant annotation and VUS resolution engine22GPL-3.0 clashCommand Line Agent Safety Harness — permission policies for coding agents356Apache-2.0 clash-brush-builtinsBuiltins for a POSIX/bash shell (used by brush-shell)321MIT Command line utilities Development tools clash-brush-coreReusable core of a POSIX/bash shell (used by brush-shell)492MIT Command line utilities Development tools clash-brush-interactiveInteractive layer of brush-shell328MIT Command line utilities Development tools clash-brush-parserPOSIX/bash shell tokenizer and parsers (used by brush-shell)618MIT Command line utilities Development tools clash-cliCLI for clash4,036MIT clash-lsplsp for clash policy files84Apache-2.0 clash-policyClash policy language: parsing, IR, compilation, and evaluation128Apache-2.0 clash-prism-corePrism Engine core — Patch IR, compiler, executor, validator, cache, watcher3,332Apache-2.0 clash-prism-dslPrism DSL parser for .prism.yaml configuration files3,146Apache-2.0 clash-prism-extensionUI Extension interface for integrating Prism Engine into Mihomo GUI clients3,157Apache-2.0 clash-prism-pluginPlugin system with lifecycle hooks, multi-component architecture, and cron scheduling3,007Apache-2.0 clash-prism-scriptScript engine with rquickjs sandbox for Prism Engine3,187Apache-2.0 clash-prism-smartSmart proxy selector with EMA scoring and adaptive scheduling3,005Apache-2.0 clash-rs-configa clash yaml config parser2,180Apache-2.0 Configuration Data structures clash-shAvoid merge conflicts across git worktrees for parallel AI coding agents56MIT Command line utilities Development tools clash_apiclash(clash.meta) api written in rust2,836MIT clash_configRust binding for the clash config file1,596MIT clash_notifyDesktop notification support for clash539Apache-2.0 clash_rulesa clash yaml rule parser and matching algorithms provider13,314MIT OR Apache-2.0 Algorithms Configuration clash_starlarkStarlark policy evaluator for Clash — compiles .star files to JSON policy366Apache-2.0 clashcoreSharded RwLock collection — internals shared by clashmap31,767MIT Concurrency Data structures clashctlCli & Tui used to interact with Clash RESTful API12,300MIT Command line utilities clashctl-coreClash RESTful API10,373MIT Command line utilities clashctl-interactiveDependency for clashctl & clashctl-tui, do not use directly8,882MIT clashctl-tuiTui used to interact with Clash RESTful API11,886MIT Command line utilities clashiWIP Dashboard for Clash.Meta477MIT clashmapSharded hashmap suitable for fast concurrent access2,501,351MIT Algorithms Concurrency clashtuiMihomo TUI Client1,882MIT clasmaA procedural macro for partial borrowing3,421GPL-3.0-or-later claspRank fusion and reranking: RRF, ISR, CombMNZ, Borda, DBSF, MaxSim (ColBERT), MMR, DPP, Matryoshka.18MIT OR Apache-2.0 Algorithms Mathematics clasp-bridgeProtocol bridges for CLASP (OSC, MIDI, Art-Net, DMX, MQTT, WebSocket, HTTP)459MIT OR Apache-2.0 Multimedia Network programming clasp-capsCapability tokens for CLASP protocol (delegatable Ed25519)285MIT OR Apache-2.0 clasp-cliCommand-line interface for CLASP protocol servers and bridges305MIT OR Apache-2.0 Multimedia Network programming clasp-clientCLASP client library777MIT OR Apache-2.0 clasp-config-defraDefraDB-backed CLASP configuration storage with P2P sync and version history67MIT OR Apache-2.0 clasp-coreCore types and encoding for CLASP protocol1,896MIT OR Apache-2.0 Multimedia Network programming clasp-cryptoE2E encryption add-on for CLASP protocol - AES-256-GCM, ECDH P-256, ECDSA, TOFU124MIT OR Apache-2.0 Cryptography Network programming clasp-defra-bridgeBidirectional bridge between DefraDB documents and CLASP real-time signals65MIT OR Apache-2.0 clasp-defra-transportTunnel DefraDB P2P sync over CLASP transports (WebSocket, WebRTC, QUIC)68MIT OR Apache-2.0 clasp-discoveryDevice discovery for CLASP (mDNS, UDP broadcast)424MIT OR Apache-2.0 clasp-embeddedCLASP embedded/no_std implementation - uses standard v3 protocol312MIT OR Apache-2.0 clasp-federationMulti-site federation for CLASP protocol190MIT OR Apache-2.0 clasp-identityUnified identity for CLASP, DID, and libp2p - one Ed25519 keypair, three identity systems123MIT OR Apache-2.0 clasp-journalEvent log and state persistence for CLASP routers584MIT OR Apache-2.0 clasp-journal-defraDefraDB backend for CLASP journal - P2P state sync via Merkle CRDTs351MIT OR Apache-2.0 clasp-lensLensVM WASM transform host for CLASP signal pipelines199MIT OR Apache-2.0 clasp-registryEntity registry for CLASP - persistent identity for devices, users, and services344MIT OR Apache-2.0 clasp-registry-defraDefraDB backend for CLASP entity registry - P2P identity sync via Merkle CRDTs69MIT OR Apache-2.0 clasp-routerCLASP message router and server787MIT OR Apache-2.0 clasp-rsCommand-Line Argument Sorting and Parsing (for Rust)1,505BSD-3-Clause clasp-rulesServer-side rules engine for CLASP protocol267MIT OR Apache-2.0 clasp-state-defraDefraDB-backed state store for CLASP with write-through cache and P2P sync67MIT OR Apache-2.0 clasp-test-utilsTest utilities for CLASP protocol crates417MIT OR Apache-2.0 clasp-transportTransport layer implementations for CLASP1,275MIT OR Apache-2.0 clasp-wasmCLASP WebAssembly bindings245MIT OR Apache-2.0 classAnnotations for a good form of OOP in Rust911MIT OR Apache-2.0 class-enumsA library that stores enum variants with their own structs with an optional base struct23MIT class-groupsA cryptographic library for working with binary quadratic forms (elements of a class group)50AGPL-3.0-only class-rsReads/writes a .class file into/from an almost 1-to-1 matching struct3,166MIT OR Apache-2.0 class2jsonDisplay Java Class files in JSON format.1,848MIT class_fileA library for parsing JVM classfiles.1,990MIT class_groupRust library for building IQC: cryptography based on class groups (Cl) of imaginary quadratic orders10,633GPL-3.0 Cryptography class_group_0_5_2Just compile v0.5.2 without any modification1,942MIT class_listA reactive helper that ensures normalized class list strings in frontend frameworks like Leptos.10,464MIT Development tools::Build Utils Rust patterns class_list_macroA reactive helper that ensures normalized class list strings in frontend frameworks like Leptos.11,065MIT Development tools::Build Utils Rust patterns class_namesA macro library for elegantly joining class names for web frameworks3,760MIT OR Apache-2.0 classchartsUnoffical classcharts library for rust.7,732MIT API bindings Web programming::HTTP client classeq-apiAPI for Classeq16,906Apache-2.0 Command-line interface Command line utilities classeq-cliA command line interface for the classeq library23,719Apache-2.0 Command-line interface Command line utilities classeq-coreCore library for the classeq project26,546Apache-2.0 Command-line interface Command line utilities classeq-ports-libA base library to share elements between Classeq ports18,164Apache-2.0 Command-line interface Command line utilities classeq-watcherA simple watcher for the Classeq project17,013Apache-2.0 Command-line interface Command line utilities classerA JVM Class File Parser and generator for Rust1,587MIT classesDependency-free macro that simplifies the process of building class strings for DOM elements15,100MIT OR Apache-2.0 classeve-rai-compressWeight quantization and compression toolkit — GPTQ with calibration, adaptive bit allocation, bit-packing16Apache-2.0 classeve-rai-coreResonance-Augmented Intelligence — core memory, embedding, and reasoning primitives34Apache-2.0 classeve-rai-inferCPU inference engine for 4-bit quantized LLMs — hand-written AVX2 GEMM kernels, .raimodel format, speculative decoding16Apache-2.0 classeve-rai-rem-nraLocal resonance memory backend used by the RAI workspace52Apache-2.0 classeve-rai-serverLocal REST and MCP server for the RAI memory and reasoning layer16Apache-2.0 classfiClassical music in your terminal.81GPL-3.0-or-later Command line utilities Multimedia::Audio classfile-parserA parser for Java Class files written in rust30,375MIT Parser implementations classfmtA library for parsing Java class files10,710Apache-2.0 classgroupAn implementation of class groups in Rust. Uses GMP for arithmetic.9,975Apache-2.0 classi-cineA tool that builds smart video playlists by learning your preferences through Bayesian classification.12,366MIT Command line utilities classicObject-oriented programming for Rust102MIT OR Apache-2.0 Data structures classic-bindingsBindings for CustomMsg and CustomQuery for the Terra Classic blockchain24,159Apache-2.0 classic-bitfieldA bitfield enum with a classic feel7,363GPL-3.0 classic-core-test-tubelibrary for building integration testing environments for cosmos-sdk chains in Rust1,894MIT OR Apache-2.0 classic-deriveDerive macro for the classic crate124MIT OR Apache-2.0 classic-mceliece-rustPure rust implementation of the PQC scheme Classic McEliece532,952MIT Cryptography classic-rustProtobuf struct defintions for interacting with Terra Classic5,485Apache-2.0 classic-rust-genuineProtobuf struct defintions for interacting with Terra Classic1,506Apache-2.0 classic-syncProvides ReentrantLock, Semaphore and CyclicBarrier using Classic Linux Mutex systems4,050Apache-2.0 classic-test-tubeCosmWasm integration testing for Classic4,042MIT OR Apache-2.0 classic_bpfBuild and attach classic BPF programs to sockets.3,030MIT classic_terraswapCommon terraswap types6,715Apache-2.0 classical-ciphersClassical cipher implementations: Caesar, Vigenère, Atbash, XOR27BSD-2-Clause Cryptography Encoding classical_solverSimulated annealing implementation for annealers_rust2,168MIT classics-ranking-botAn on-command ranking bot for the -Classics- Roblox group https://www.roblox.com/groups/3489210/Classics1,550MIT classicube-sysRust C bindings for ClassiCube.69,296MIT classifLibrary for one-dimensional data classification and basic statistics3,884MIT/Apache-2.0 classificClassifications, comparator and equivalence class implementations5,771MIT OR Apache-2.0 Algorithms Mathematics classifiedHigh-assurance Operations for Number-theoretic Extension Sets and Theorems (Galois Fields).480MIT OR Apache-2.0 Cryptography Memory management classified_aesimplementing the classified crate for aes block modes22MIT OR Apache-2.0 classified_shamirshamir secret sharing using the honest and classified crates39MIT OR Apache-2.0