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.

cases2A simple utility library for converting Rust nameconventions.1,582MIT casespaetzleThis package introduces common identifier case traits and a macro for case trait generation.3,969Apache-2.0 casespaetzle-macroThis package introduces a procedural macro for the crate 'casespaetzle'2,305Apache-2.0 caseyCase transforming macros for ident tokens612,062MIT casgenA way to generate cas12 6-plex CRISPR sequences5,319MITScience cashAn immutable library to create, calculate, format and exchange currency.34,141MIT cash-rate-loggerA cached cash rate logger18non-standard cash_addrcash_addr format implementation inspired by cashaddrjs.42,423MIT cash_tx_builderTransaction builder for Bitcoin Cash6,367MIT cashaccountLibrary for working with Cash Accounts. Cash Accounts is a a naming system for sharing bitcoin payment information.1,820MIT cashaccount-sysLibrary for working with Cash Accounts. Cash Accounts is a a naming system for sharing bitcoin payment information.9,096MIT cashaddrCashaddr codec library67,836MIT cashcodeCashCode bill validator driver using the CCNET protocol85MITEmbedded developmentHardware support casheCommand line utility for caching and recalling output1,756Apache-2.0 cashflowA terminal-based expense tracker built with Ratatui43MITCommand line utilitiesFinance cashierGeneralized Data KV Cache Module6,962MIT cashier-serverCashier Ledger-cli server component11,307GPL-3.0-or-laterCommand line utilitiesWeb programming::HTTP server cashifyLightweight currency conversion library.4,084MIT cashly一个简要投资记录法的 DSL 脚本解析器, 这个库包含 EBNF 设计和 rust 的实现350non-standard cashmereSpatial search trees with a focus on online mutability, speed, performance guarantees, and flexibility1,608MITAlgorithmsData structures cashmoneyLibrary for safe monetary calculations6,547MIT cashuCashu shared types and crypto utilities, used as the foundation for the CDK and their crates37,943MIT cashu-crabCashu rust wallet and mint library2,807BSD-3-Clause cashu-creditSat-denominated service receipts, bounded peer credit, and Cashu backing accounts63MIT cashu-mint-auditAsync client for the Cashu mint auditor (audit.8333.space) — list audited mints and derive per-mint reliability/health from the…318MITAPI bindingsWeb programming::HTTP client cashu-sdkcashu-sdk1,544BSD-3-Clause cashu-serviceReusable Cashu helper and wallet primitives for paid connectivity services2,534MIT cashwebA collection of useful cash:web helper libraries.15,161MITDevelopment tools cashweb-auth-wrapperA library providing deserialization, parsing, and verification needed within the cash:web Authorization Wrapper Framework10,916MITDevelopment tools cashweb-bitcoinA library providing serialization/deserialization of Bitcoin structures, utility methods for signing, and methods for…10,205MITDevelopment tools cashweb-bitcoin-clientA minimal Bitcoin RPC client.10,428MITDevelopment tools cashweb-keyserverA library providing protobuf structures within the cash:web Keyserver Protocol.8,943MITDevelopment tools cashweb-keyserver-clientA library providing a client for use within the cash:web Keyserver Protocol.8,236MITDevelopment tools cashweb-paymentsA helper library for cash:web payments.9,703MITDevelopment tools cashweb-protobufA helper library for the cash:web protobuf messages.1,465MITDevelopment tools cashweb-relay`cashweb-relay` is a library providing serialization/deserialization, encryption/decryption/verification of structures in the…9,088MITDevelopment tools cashweb-relay-clientA library providing a client for use within the cash:web Relay Protocol8,386MITDevelopment tools cashweb-secp256k1Rust bindings for Pieter Wuille's `libsecp256k1` library. Implements ECDSA for the SECG elliptic curve group secp256k1 and…13,012CC0-1.0 cashweb-secp256k1-sysFFI for Pieter Wuille's `libsecp256k1` library.9,990CC0-1.0 cashweb-tokenA protobuf library for the cash:web tokens.14,953MITDevelopment tools cashyalla_rpn_calc_test_verRPN(Reverse Polish Notation) library1,673MIT casial-coreConsciousness-aware context coordination engine - The Casial substrate for paradox-resilient AI agent context management and…2,104MIT OR Apache-2.0AlgorithmsConcurrency casial-serverHigh-performance WebSocket MCP server with consciousness-aware context coordination for AI agent systems1,297non-standardDevelopment toolsNetwork programming casial-wasmWASM bindings for universal consciousness-aware context coordination in web browsers and JavaScript environments1,312non-standardAPI bindingsWebAssembly casileThe command line interface to the CaSILE toolkit, a book publishing workflow employing SILE and other wizardry13,864AGPL-3.0 casimir-fdfdAn implementation of a stress-tensor based FDFD method for computing Casimir forces3,564MIT casingPerformant case handling.4,878WTFPL casinoA casino built right into your terminal3,559AGPL-3.0-or-laterCommand line utilitiesGames casino_cardsA library that provides a deck of playing cards that can be used for various card games.4,123MPL-2.0Game development casino_gamesPlay casino games in your terminal.9,507MPL-2.0Games casino_pokerA library that provides hand ranking & the backend for poker games.8,130MPL-2.0Game development caskA fast key-value store backed by a log-structured hash table15,955MIT cask-cliDocker-based application deployment tool for developer2,918MIT caslexTools for creating web services6,206MITAsynchronousNetwork programming caslex-extraTools for creating web services5,850MITAsynchronousNetwork programming casmCrush Assembly (CASM) — bytecode format for the Crush VM96MIT OR Apache-2.0Compilers casmapA way to count and characterize constructs for cas12 6-plex CRISPR screens5,330MITScience casoCategory Theory Solver for Commutative Diagrams5,526MIT OR Apache-2.0 casparPlaceholder44Apache-2.0 caspaxosA completely implementation of caspaxos1,991MPL-2.0 caspaxos-kvA simple simulator hardened KV store backed by caspaxos.5,740Apache-2.0 casperMinimal configuration language, inspired by Ghostty501Apache-2.0 casper-binary-portTypes for the casper node binary port4,445Apache-2.0 casper-cliCLI wallet manager for Casper: create/recover wallets, derive accounts, and deploy smart contracts.70Apache-2.0 casper-clientA client library and binary for interacting with the Casper network47,536Apache-2.0 casper-contractA library for developing Casper network smart contracts.129,632Apache-2.0 casper-contract-macrosCasper contract macros package2,447Apache-2.0 casper-contract-schemaData structures for the Casper Contract Schema.14,175MIT casper-contract-sdkCasper contract sdk package2,209Apache-2.0 casper-contract-sdk-codegenCasper contract sdk codegen package1,943Apache-2.0 casper-contract-sdk-sysCasper contract sdk sys package4,039Apache-2.0 casper-devnetLauncher for local Casper Network development networks.251Apache-2.0 casper-eip-712EIP-712 typed data hashing and domain separation for Casper Network524Apache-2.0CryptographyNo standard library casper-engine-grpc-serverWasm execution engine for Casper smart contracts.4,018non-standard casper-engine-test-supportLibrary to support testing of Wasm smart contracts for use on the Casper network.106,208Apache-2.0 casper-erc20A library for developing ERC20 tokens for the Casper network.4,142non-standard casper-erc20-crateA library for developing ERC20 tokens for the Casper network.7,006MIT casper-event-standardThe smart contract level events for Casper.42,080Apache-2.0 casper-event-standard-macroThe smart contract level events for Casper.42,632Apache-2.0 casper-execution-engineCasper execution engine crates.119,257Apache-2.0 casper-executor-wasmCasper executor wasm package2,341Apache-2.0 casper-executor-wasm-commonCasper executor common package3,900Apache-2.0 casper-executor-wasm-hostCasper executor host package2,856Apache-2.0 casper-executor-wasm-interfaceCasper executor interface package3,101Apache-2.0 casper-executor-wasmer-backendCasper executor interface package2,612Apache-2.0 casper-hashingA library providing hashing functionality including Merkle Proof utilities.67,216Apache-2.0 casper-json-rpcA library suitable for use as the framework for a JSON-RPC server.3,466Apache-2.0 casper-nodeThe Casper blockchain node61,994Apache-2.0 casper-node-macrosA macro to create reactor implementations for the casper-node.37,906non-standard casper-storageStorage for a node on the Casper network.10,352Apache-2.0 casper-sysFFI bindings for FreeBSD's libcasper8,381MPL-2.0External FFI bindings casper-typesTypes shared by many casper crates for use on the Casper network.172,544Apache-2.0 casper-vdbClient library for Casper Vector Database115Apache-2.0Database interfacesWeb programming::HTTP client casper-wasmWebAssembly low-level format library45,440MIT/Apache-2.0Parser implementationsWebAssembly casper-wasm-utilsCollection of command-line utilities and corresponding Rust api for producing pwasm-compatible executables63,800MIT/Apache-2.0 casper-wasmiWebAssembly interpreter44,203MIT/Apache-2.0 casper-wasmi-coreCore abstractions and primitives for the wasmi WebAssembly interpreter43,666MIT/Apache-2.0 casper-wasmi-validationWasm code validator44,612MIT/Apache-2.0 casper_eventLibrary for developing Casper smart contracts with event.1,709MIT casper_types_deriveUse struct types in Casper contracts without boilerplate.14,747MIT OR Apache-2.0 casper_utilsUtilities for interacting with CASPER FPGA file formats4,882Apache-2.0 OR MITHardware supportParser implementations casperfpgaA library for monitor and control of CASPER FPGA deivces7,027Apache-2.0 OR MITHardware support casperfpga_deriveProcedural macros for the casperfpga rust library5,301Apache-2.0 OR MITHardware support casperlabs-cep47this package have basic functionalities for CasperLabs CEP47 Contract2,894MIT casperlabs-contractLibrary for developing CasperLabs smart contracts.12,412non-standard casperlabs-contract-ffiLibrary for developing CasperLabs smart contracts.29,663Apache-2.0 casperlabs-contract-utilsthis package have basic utilities for CasperLabs Contracts21,039MIT casperlabs-curve-token-utilsthis package have basic utilities for CasperLabs Curve Token Contract2,810MIT casperlabs-dragon-lair-utilsthis package have basic utilities for CasperLabs Dragon Lair Contract2,790MIT casperlabs-engine-coreMain component of the CasperLabs Wasm execution engine.13,503non-standard casperlabs-engine-grpc-serverWasm execution engine for CasperLabs smart contracts.18,164non-standard casperlabs-engine-sharedLibrary of shared types for use by the various CasperLabs execution engine crates.11,963non-standard casperlabs-engine-storageStorage component of the CasperLabs Wasm execution engine.13,234non-standard casperlabs-engine-wasm-prepPreprocessor of Wasm modules for use as smart contracts on the CasperLabs network.12,016non-standard casperlabs-erc20A Basic Erc20 Implementation with New CasperLabs Crate12,900MIT casperlabs-i-reward-distribution-recipientthis package have basic functionalities for CasperLabs Curve Dao's I Reward Distribution Recipient Contract1,877MIT casperlabs-lp-token-wrapperthis package have basic functionalities for CasperLabs Curve Dao's LP Token Wrapper Contract3,070MIT casperlabs-mintDefines the mint api9,296non-standard casperlabs-ownablethis package have basic functionalities for CasperLabs Curve Dao's Ownable Contract4,350MIT casperlabs-ownedthis package have basic functionalities for CasperLabs Owned Crate2,270MIT casperlabs-pausablethis package have basic functionalities for CasperLabs Pausable Crate1,583MIT casperlabs-proof-of-stakeDefines the proof of stake api9,365non-standard casperlabs-reentrancy-guardthis package have basic functionalities for CasperLabs Reentrancy Guard Crate1,577MIT casperlabs-staking-rewards-utilsthis package have basic utilities for CasperLabs Stking Rewards Contract2,814MIT casperlabs-standard-paymentDefines the standard payment api9,317non-standard casperlabs-test-envthis package have basic utilities for CasperLabs Test Environment8,472MIT casperlabs-typesTypes used to allow creation of Wasm contracts and tests for use on the CasperLabs network.12,694non-standard casperlens-serverServer for CasperLens, a smart contract lifecycle and observability management for Casper Network47Apache-2.0API bindings casqA minimal content-addressed file store using BLAKE3. (CLI)216Apache-2.0 casq_coreA minimal content-addressed file store using BLAKE3. (library)327Apache-2.0 casrCollect crash reports, triage, and estimate severity.27,559Apache-2.0 cassThis crate is reserved.1,818Apache-2.0 cassadiliaA content-addressable storage (CAS) system optimized for large blobs with read-mostly access patterns16,933MIT OR Apache-2.0Data structuresDatabase interfaces cassanderA Rustified wrapper around the DataStax C/C++ Driver for Apache Cassandra and DataStax Products3,839MITDatabase interfaces cassandraA usable Cassandra CQL driver (this replaces the previous cql-ffi package). Wraps the DataStax c++ native driver and uses…106,381Apache-2.0 cassandra-cppA Cassandra CQL driver, built on top of the DataStax C++ driver for performance and functionality.354,860Apache-2.0API bindingsAsynchronous cassandra-cpp-sysA bindgen-generated Rust wrapper around the DataStax Cassandra C++ driver plus working examples. You probably want to use the…1,044,651Apache-2.0API bindingsDatabase interfaces cassandra-protoCassandra binary protocol primitives5,834MIT cassandra-protocolCassandra protocol implementation772,389MIT/Apache-2.0AsynchronousDatabase interfaces cassandra-sigv4SigV4 authenticator for cassandra-cpp-sys5,945Apache-2.0 cassandra-sysA bindgen-genderated rust wrapper around the Cassandra c++ driver plus working examples with no additional dependencies. You…74,183Apache-2.0 cassandra_macroCreate Cassandra tables and CRUD CQL prepared statements from Rust structs. (custom derive: cassandra_macro_derive)5,900MIT cassandra_macro_deriveMacros 1.1 implementation of #[derive(Cassandra)]5,880MIT casseroleBreak and serialize values into content-addressable storage44,329MIT/Apache-2.0Encoding casserole-deriveBreak and serialize values into content-addressable storage44,869MIT/Apache-2.0Encoding cassetteA simple, single-future, non-blocking executor intended for building state machines56,376MIT OR Apache-2.0Asynchronous cassieA simple, limited computer algebra system written for the fun of it.5,548ISCAlgorithmsScience cassiniA software that generates highly accurate topographic maps from LiDAR and Shapefile data.15,017non-standard cassiopeiaSimple, low effort time tracking tool for the kookie-office ecosystem1,726GPL-3.0-or-later cassowaryA Rust implementation of the Cassowary linear constraint solving algorithm. The Cassowary algorithm is designed for naturally…35,954,244MIT / Apache-2.0 castErgonomic, checked cast functions for primitive types222,651,927MIT OR Apache-2.0 cast-interopCli tool for zksync interop53MIT OR Apache-2.0Cryptography cast-lspExperimental: Language Server Protocol implementation for cast::*! annotations. Surfaces unresolved anchors, parse errors, and…14MITCommand line utilitiesDevelopment tools cast-os-stdlibExperimental: A curated library of reusable OS-level architectural concepts expressed in cast vocabulary. Downstream…27MITDevelopment toolsOperating systems cast-rsA collection of types cast for Rust.8,499MIT/Apache-2.0Data structures cast-senderFully asynchronous implementation of the Google Cast CASTV2 protocol, allowing communication with receivers such as Chromecast or…11,563MITAPI bindingsMultimedia cast-specExperimental: Compile-time architectural annotations for Rust — function-shaped macros that name concepts, rules, anti-patterns,…157MITDevelopment toolsRust patterns cast-stdlibExperimental: A curated library of reusable architectural concepts expressed in cast vocabulary. Downstream projects pull this in…28MITDevelopment toolsRust patterns cast-to-xCast your Wayland to an X window1,608GPL-2.0 cast-watchExperimental: Live, file-watching daemon for cast::*! annotations — maintains an incremental concept graph and exposes a query…14MITCommand line utilitiesDevelopment tools cast-webExperimental: Small browser UI + LLM-mailbox shim over a single cast-watch socket. To cast what gitweb is to git: a…13MITCommand line utilitiesDevelopment tools cast5CAST5 block cipher6,103,969MIT OR Apache-2.0CryptographyNo standard library cast6CAST6 block cipher3,949MIT OR Apache-2.0CryptographyNo standard library cast_checksA procedural macro to check for invalid casts15,476MIT OR Apache-2.0 cast_checks_convertcast_checks_convert16,010MIT OR Apache-2.0 cast_checks_macrocast_checks_macro16,066MIT OR Apache-2.0 cast_traitcast trait63,415MIT cast_trait_objectCast between trait objects using only safe Rust.18,214MIT OR Apache-2.0No standard libraryRust patterns cast_trait_object_macrosCast between trait objects using only safe Rust.18,917MIT OR Apache-2.0No standard libraryRust patterns cast_url一个封装好的自用库3,294MIT OR Apache-2.0 cast_wd这是一个类型转换的package7,639MIT castagneFighting/Action game engine core focusing on efficiency and flexibility. Made to be linked to another game engine like Godot.37MPL-2.0 castagne-godotGodot bindings for Castagne, the Fighting/Action game engine.40MPL-2.0 castawaySafe, zero-cost downcasting for limited compile-time specialization.114,536,439MITNo standard libraryRust patterns castboxA Runtime-Typed Reference-Counted Smart Pointer and Concurrent Programming tools.4,800Apache-2.0AlgorithmsData structures castellumCastellum main library implementation, see castellum-cli for CLI usage and castellum-gui for GUI usage18Apache-2.0 castellum-access-control-interfaceCastellum interface to implement access control modules21Apache-2.0 castellum-auth-interfaceCastellum interface to implement authentication modules21Apache-2.0 castellum-cliOfficial CLI for Castellum15Apache-2.0 castellum-encryption-interfaceCastellum interface to implement encryption modules20Apache-2.0 castellum-mod-aclGeneric ACL module for Castellum15Apache-2.0 castellum-mod-chacha-encryptChacha encrypt data encryption for Castellum15Apache-2.0 castellum-mod-password_authPassword based authentication for Castellum15Apache-2.0 castellum-mod-rsa_signRSA Signature for Castellum15Apache-2.0 castellum-mod-yubikey-authYubikey based authentication for Castellum15Apache-2.0 castellum-sharedShared objects and methods required for Castellum55Apache-2.0 castellum-sign-interfaceSignature interface for Castellum modules21Apache-2.0 castep-cell-fmtParser and formatter backend for CASTEP .cell/.param file formats115MIT castep-cell-ioI/O library for CASTEP .cell and .param file formats28,392MIT castep-cell-parserbasic parser built on `pest` for `castep` `.cell` and `.param`2,402MIT castep-model-coreThe core module to parse, read, edit, and write 3D lattice models for castep and compatible with Materials Studio.20,367MIT castep-param-deriveProc macro derives for `castep-param-io`1,341MIT castep-param-iocrate to read, operate on and write castep `.param` parameter file2,599MIT castep-periodic-tablePeriodic-table-like database for relevant usage in CASTEP17,697MIT castep-seedingCreate seeding files for castep calculation jobs1,093MIT castep_model_generator_backendA rust-written backend lib for edit and generation of lattice 3D-models compatible with CASTEP and Materials Studio.25,071MIT caster🚀 Publish stdout via http.8,569MITCommand line utilitiesNetwork programming casterlyrockEconomic system, merchants, resources, scarcity for my Hornvale project.2,007Unlicense castflipLibrary for encoding/decoding numeric variables, arrays and structures in little-endian and big-endian15,233MIT-0EncodingParsing tools castflip_deriveDerive macros for the castflip crate8,842MIT-0