All 305,250 crates, alphabetically

cosmoutilsUseful utilities for writting Rust CLI tools9,395MIT cosmoxideCosmology utils for Rust.896MIT cosmrsTransaction builder and signer for Cosmos-based blockchains1,314,138Apache-2.0CryptographyCryptography::Cryptocurrencies cosmrs_minor_changeTransaction builder and signer for Cosmos-based blockchains893Apache-2.0CryptographyCryptography::Cryptocurrencies cosmwasmStandard library for Wasm based smart contracts on Cosmos blockchains38,598Apache-2.0 cosmwasm-bignumberBignumber library for cosmwasm project231,041Apache-2.0 cosmwasm-checkA CLI tool for verifying CosmWasm smart contracts191,491Apache-2.0 cosmwasm-common-libraryCosmwasm common library4,671Apache-2.0 cosmwasm-contract-migratable-stdA collection of standardized messages, state structs, and helper functions a contract can use to implement contract migration.1,538non-standardCryptography::CryptocurrenciesWebAssembly cosmwasm-coreComponents of cosmwasm-std that can be used in no_std environments733,686Apache-2.0 cosmwasm-cryptoCrypto bindings for CosmWasm contracts4,215,632Apache-2.0 cosmwasm-custom-decimalA custom decimal type for CosmWasm smart contracts with 6 decimal places and full Decimal compatibility22MITCryptography::CryptocurrenciesMathematics cosmwasm-deriveA package for auto-generated code used for CosmWasm contract development. This is shipped as part of cosmwasm-std. Do not use…4,290,737Apache-2.0 cosmwasm-icaA library for facilitating IBC communication of Wasm based smart contracts on Cosmos blockchains1,580Apache-2.0 cosmwasm-mathMath symbols for CosmWasm1,657Apache-2.0 cosmwasm-rbacAccess Control Utilities for CosmWasm smart contracts7,146MIT cosmwasm-schemaA dev-dependency for CosmWasm contracts to generate JSON Schema files.3,887,682Apache-2.0 cosmwasm-schema-deriveDerive macros for cosmwasm-schema2,646,673Apache-2.0 cosmwasm-simulateCosmwasm simulate7,126MIT cosmwasm-stdStandard library for Wasm based smart contracts on Cosmos blockchains4,370,402Apache-2.0 cosmwasm-storageCosmWasm library with useful helpers for Storage patterns2,166,273Apache-2.0 cosmwasm-terraStandard library for Wasm based smart contracts on Terra blockchains; It's forked from the CosmWasm/cosmwasm1,287Apache-2.0 cosmwasm-vault-standardA standard interface for tokenized vaults written in CosmWasm3,981Apache-2.0 cosmwasm-vmVM bindings to run CosmWasm contracts628,746Apache-2.0 cosmwasm-vm-deriveDerive macros for cosmwasm-vm. For internal use only. No stability guarantees.51,496Apache-2.0 cosortSort several slices together1,586MIT cospA Prolog-like logic inference system with cost-aware reasoning.496MIT cosqA CLI to query your Azure Cosmos DB instances258MITCommand line utilitiesDatabase interfaces cosq-clientAzure Cosmos DB client and authentication for cosq341MIT cosq-coreCore types and configuration for cosq426MIT cosringGroup theory coset analog to threadsafe SPSC ring buffers1,374non-standardConcurrencyData structures costmeasure the cost of running your functions2,939MIT cost-meterAggregate LLM API cost across providers, models, and time windows. Provider-agnostic — pairs with claude-cost, openai-cost,…19MIT OR Apache-2.0Data structures cost_timeutil for cost time1,918MulanPSL-2.0 costaOxygen and moisture environment1,478MIT costmap2D costmaps, occupancy grids, and raycasting for robotics navigation - a Nav2 alternative in pure Rust56MIT OR Apache-2.0AlgorithmsScience costoflifeThe CostOf.Life Calculator5,540MIT costott_minigrepReturns all lines with a given string pattern in a file.1,563MIT costottoramasimple crate to allow coloured text and formatting in terminal (for windows)1,622MIT costroidLocal-first, FOCUS-native cost and limit visibility for your AI coding tools, right in your terminal.122Apache-2.0Command line utilitiesVisualization costroid-barCostroid taskbar — an always-on tray glance + live cockpit for your AI coding-tool costs and limits.35Apache-2.0GUIVisualization costroid-configShared, read-only TOML config (budget targets + opt-in alerts) for the Costroid CLI and taskbar.70Apache-2.0Command line utilitiesConfiguration costroid-connectCostroid's opt-in network + credential boundary: the single crate where all HTTP and OS-keychain access lives, feature-gated and…100Apache-2.0AuthenticationCommand line utilities costroid-coreCostroid data pipeline and aggregation engine: normalizes local AI-tool usage into estimated FOCUS cost records.223Apache-2.0Command line utilitiesFinance costroid-focusFOCUS 1.3 Cost and Usage export primitives: typed records and JSON/CSV serialization for AI tool billing data.275Apache-2.0EncodingFinance costroid-powerCostroid local-inference economics: the four-source PowerSampler abstraction and the measured/estimated energy-cost model.26Apache-2.0FinanceHardware support costroid-providersLocal log parsers and provider interfaces for Claude Code, Codex, and Cursor AI-tool usage data.251Apache-2.0Command line utilitiesParser implementations costroid-serverCostroid local HTTP API + web UI — a loopback-only (127.0.0.1) server over the local cost ledger. No outbound network.17Apache-2.0Command line utilitiesWeb programming::HTTP server costroid-storeCostroid's local SQLite usage store: a metadata-only (R4 Cardinal Rule) persistent ledger of FOCUS usage rows, structurally…35Apache-2.0Command line utilitiesDatabase interfaces costxBlockchain transaction analysis tools for EVM chains and Solana499MITAPI bindingsCryptography::Cryptocurrencies coswidCoSWID parser5,522MIT cosworthA tool for making web services9,379MIT cosyA parser for Cosense/Scrapbox markup syntax that produces a typed AST54MITParser implementationsText processing cosynca single threaded, sequential, parameterized task pool for games7,028MIT OR Apache-2.0Game development cosyneCoSyNE - neuro evolution through cooperatively coevolved synapses4,956non-standardAlgorithmsScience cotThe Rust web framework for lazy developers.22,435MIT OR Apache-2.0Network programmingWeb programming cot-cliCommand-line interface for the Cot web framework7,731MIT OR Apache-2.0Command line utilitiesWeb programming cot-protoCursor on Target (CoT) protocol (de)serialization / parsing9,118Apache-2.0Network programming cot_codegenThe Rust web framework for lazy developers - code generation utils.18,635MIT OR Apache-2.0 cot_coreThe Rust web framework for lazy developers - framework core.3,356MIT OR Apache-2.0Network programmingWeb programming cot_macrosThe Rust web framework for lazy developers - macros.18,326MIT OR Apache-2.0 cot_publisherCursor On Target (COT) Publisher for multicast UDP or TCP for ATAK ecosystem3,435MITEncodingNetwork programming cotaticotati is a general-purpose vector drawing interface that does not restrict binding to a back-end renderer.1,004MIT coteQuickly build your command line utils35,029MPL-2.0Command-line interface cote-deriveQuickly build your command line utils27,006MPL-2.0Command-line interface cotermCopilot for your terminal2,955GPL-3.0-onlyCommand line utilities cotextStructured project context for humans and coding agents, with a CLI and ratatui TUI.72MITCommand line utilitiesDevelopment tools cotimWrite SystemVerilog modules in Rust23MIT cotisModular Rust UI framework core111MITGUIRendering cotis-accessibilityAccessKit accessibility bridge traits for Cotis15MITAccessibilityGUI cotis-cliPlugin host for Cotis build, check, and run routines15MITCommand line utilitiesGUI cotis-defaultsModular Rust UI framework core138MITGUIRendering cotis-interactivityHigher-level input managers for Cotis applications15MITGUI cotis-layoutFlexbox-style layout engine for Cotis87MITGUIRendering cotis-macrosModular Rust UI framework core17MITGUIRendering cotis-modules-debugRecord, replay, and isolate Cotis layout and UI declaration pipelines15MITDevelopment toolsGUI cotis-pipesLayout-to-renderer pipe for Cotis115MITGUIRendering cotis-raylibRaylib-backed renderer for Cotis38MITGUIRendering cotis-utilsModular Rust UI framework core108MITGUIRendering cotis-webBrowser/WASM render backend for the Cotis UI framework15MITGUIWebAssembly cotis-web-builderWASM build routine and cotis-cli plugin for cotis-web16MITDevelopment toolsGUI cotis-wgpuDesktop wgpu renderer backend for Cotis15MITGUIRendering cotitchA tool to concatenate project files into a single Markdown file.942MIT cotoA command line todoist client1,996Apache-2.0Command line utilities cotoxyA TCP proxy using Consul for service discovery2,002MIT cotpTrustworthy, encrypted, command-line TOTP/HOTP authenticator app with import functionality.49,683non-standardAuthenticationCommand line utilities cotsCots.ai SDK for Rust. cots::agents::AgentClient — configure once with tenant_id/agent_id, then guard() every governed action…15MITAPI bindingsAuthentication cottageA modern git based age-encrypted secrets manager for teams.762MIT OR Apache-2.0Command line utilitiesDevelopment tools cottakA built in test application for Linux using dynamic libraries in Rust944non-standard cottas-rscottas-rs is a library for working with compressed RDF files in the COTTAS format. COTTAS stores triples as a triple table in…44Apache-2.0Data structuresDatabase interfaces cotti-build-supportFilesystem and OS management for installing and building dependencies.24MIT cottonA prelude with crates, types and functions useful for writing CLI tools.42,623MITCommand-line interface cotton-netifEnumerating available network interfaces and their IP addresses10,678CC0-1.0Network programming cotton-scsiSCSI commands and abstractions1,290CC0-1.0 cotton-ssdpImplementing SSDP, the Simple Service Discovery Protocol8,707CC0-1.0Network programming cotton-uniqueDeterministic per-device unique IDs for embedded systems1,353CC0-1.0 cotton-usb-hostUSB host stack for embedded devices3,111CC0-1.0 cotton-usb-host-hidUSB HID host for embedded devices325CC0-1.0 cotton-usb-host-mscUSB mass-storage host for embedded devices1,377CC0-1.0 cotton-w5500smoltcp driver for Wiznet W5500 SPI-to-Ethernet chip in MACRAW mode1,996CC0-1.0Embedded developmentNetwork programming cotton2kA Rust implementation of the Cotton2K crop simulation model.22AGPL-3.0-or-laterScience cotyledonFramework for writing sprouts — sandboxed, event-driven on-chain trading bots.18MIT OR Apache-2.0Cryptography::CryptocurrenciesWebAssembly cotyledon-macrosProcedural macros for the cotyledon sprout framework.36MIT OR Apache-2.0Development tools::Procedural macro helpersWebAssembly couch_rsCouchDB library for Rust214,535MIT/Apache-2.0Database interfaces couch_rs_deriveCouchDB library for Rust180,959MIT/Apache-2.0Database interfaces couch_rs_testTools for testing a CouchDB repository implemented in Rust with couch_rs.2,754MIT couchbaseThe official Couchbase Rust SDK58,179Apache-2.0 couchbase-connstrCouchbase SDK connection string parsing and DNS resolution, not intended for direct use9,419Apache-2.0 couchbase-coreCouchbase SDK core networking and protocol implementation, not intended for direct use9,275Apache-2.0 couchbase-liteErgonomic wrapper for couchbase-lite-core library26,944BSD-3-Clause couchbase-lite-core-sysNative bindings to the couchbase-lite-core library23,090BSD-3-Clause couchbase-sysRust bindings to the libcouchbase C Couchbase SDK.55,989Apache-2.0AsynchronousDatabase interfaces couchdbThe couchdb library provides types for working with CouchDB.20,789MIT/Apache-2.0 couchdb-containerA small utility library for creating CouchDB docker containers programmatically4,658Apache-2.0 couchdb-ormcouchdb-orm Copyright (C) 2020-2023 OpenToolAdd This program comes with ABSOLUTELY NO WARRANTY; This is free software,…9,160non-standard cougr-coreCougr - A Soroban-compatible ECS framework for on-chain gaming on Stellar499MITData structuresGame engines couldA COFF linker. Inspired by mold project.1,758MIT couleurAdd the ablity to print colored text to the console1,583non-standard couleur-rsparse, print, manipulate and apply contrast to RGB colors64MIT OR Apache-2.0Command-line interface coulombLibrary for electrolytes and electrostatic interactions3,557Apache-2.0Science coultHashicorp vault secret retrival helper, using hyper and serde, and automatically parsing.16,757MIT OR Apache-2.0 councilA library to build distributed applications, inspired by Akka Cluster1,565Apache-2.0Network programming count-charactersA simple Rust program to count characters in a string2,301GPL-2.0Command line utilities count-digitsA no-std trait to determine the lengths of integers in various number bases.38,141MITAlgorithmsMathematics count-filesCount files by extension.3,563MIT OR Apache-2.0Command line utilities count-invertA Rust crate providing utility functions for counting elements in a vector and inverting a HashMap based on those counts.1,303MIT count-linesEfficiently count lines in files or stdin with estimation for large files.2,367MITCommand line utilities count-macroA simple Rust macro to perform compile time counting16,166MITDevelopment tools::Procedural macro helpersRust patterns count-mdA simple, configurable command-line tool and Rust library for Unicode-aware, Markdown-aware, HTML-aware word counting in Markdown…2,771BlueOak-1.0.0 count-min-sketchCount-min-sketch implementation1,189,340MITAlgorithmsData structures count-min-sketch-rsA high-performance, zero-allocation Count-Min Sketch implementation for frequency estimation.34MITAlgorithmsData structures count-newlinesA simple SIMD-enabled newline counter1,891Apache-2.0 count-non-zeroExtends Rust's Iterator trait to include a `count_non_zero` method, returning an Option<NonZeroUsize> for a more expressive and…2,528MIT OR Apache-2.0 count-promculaDoes nothing and exposes number of seconds alive metric2,794MIT OR Apache-2.0 count-to-non-zeroExtends Rust's Iterator trait to include a `count_to_non_zero` method, returning an Option<NonZeroUsize> for a more expressive…5,379MIT OR Apache-2.0 count-tts-innerA simple macro for counting any position tokens.1,014MITRust patterns count-tysFunction-like procedural macro that accepts a comma-delimited :ty TokenTree sequence and returns their count as a constant usize4,406MITDevelopment tools::Procedural macro helpers count-unsafeRecursively count unsafe Rust code in a given path.3,408MIT OR Apache-2.0Development tools count-wordscount words in mixed CJK, Latin, and multilingual text37MITInternationalization (i18n)Text processing count-writeAn io::Write wrapper counting the number of bytes written120,737Apache-2.0 count-zeroesCount zeroes on a disk or a file47,084MIT OR Apache-2.0Command line utilities count_cacheCounted cache system3,348BSD-2-Clause count_constant_sitesCompute the count of cases in constant sites in a (FASTA) multiple sequence alignment1,858MIT count_enumEnum trait for finite types, e.g., conversion with usize, iteration on values1,912MIT OR Apache-2.0No standard libraryRust patterns count_file_statsCount characters, words, and lines in a file15MIT count_instructionsCounts the instructions executed within a single function19,962MIT OR Apache-2.0 count_occurencesA trivial program to count the occurences of a string in a file.1,8800BSD count_rootCount line occurrences in a file and sort them by frequency (descending).486MIT OR Apache-2.0Command line utilities count_set_bitscount set bits12,412Apache-2.0 count_sortO(n) sorting library for large datasets with small range of possible values16,011MITAlgorithmsNo standard library count_ttsA simple macro for counting tokens.4,673MITRust patterns count_wherelibrary that adds a count_where method to Iterator, to easily count items matching a condition3,832MIT countableCountable (enumerable) types3,343MIT OR Apache-2.0 countdownA simple countdown timer13,472MIT countdown-metrics-rsA daemon that publishes the number of seconds until a given date to a statsd sink.2,889MIT countdown-tuiA terminal countdown timer with big digital display2,025MITCommand line utilities countdown_latchA synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes10,758MIT OR Apache-2.0 countdown_timerCountdown timer with console output15MIT countedEfficient reference counted collections.1,738MIT OR Apache-2.0Data structuresMemory management counted-arrayMacro for declaring fixed-size arrays without counting elements by hand. Supports lazy_static.500,336MITRust patterns counted_mapa hashmap that automatically assigns keys to pushed values5,482MIT OR Apache-2.0 counterSimple package to count generic iterables2,916,373MIT counter-awarenessDetection/counter-detection matrix formalization for multi-spectral awareness resistance18MIT OR Apache-2.0Development tools counter-cliA simple cli for counting- anything.7,557GPL-3.0-or-later counter-contractcounter constract2,582LGPL-3.0 counter-fpyAn implementation of Python's Counter module in Rust2,767MITNo standard library counter6464bit increase-only atomic counter for everywhere2,010MIT/Apache-2.0Concurrency counter_crateby using this crate you put start value and end value of counter and print it in main.rs1,800MIT counterfeitMock your REST API with files5,802MIT counterfeit_coreBackend code for counterfeit crate4,050MIT counterpoint-engineSpecies counterpoint engine — first species rules, interval checking, voice leading17MIT countersSimple utility to count events for debugging purposes.12,329MIT/Apache-2.0 countessThus not only the mental and the material, but the theoretical and the practical in the mathematical world, are brought into more…1,876MIT OR Apache-2.0 counting-macrosStateful numeric incrementing macros18,963MIT OR Apache-2.0Development tools::Procedural macro helpersRust patterns counting-networksLock-free data structures for concurrent counting6,593Apache-2.0/MITConcurrencyData structures counting-pointerProvides structs of reference counting pointers. The perforance is better than 'std::rc::Rc' and than 'std::sync::Arc' by…3,663LGPL-3.0-or-later OR Apache-2.0 OR BSD-2-ClauseAsynchronousMemory management Counting_CrateBy using this crate you can print counting.For use this crate you can writer these lines in your project main.rs file. 'extern…2,517MIT counting_sortCounting sort implementation for Iterators14,948MITAlgorithms countioByte counting for std::io::{Read, Write, Seek} and its async variants from futures and tokio.2,874,057MITAsynchronousParsing tools countiresAll world countries, ISO- codes and data points about them, as well as tools for interfacing with that data.7,013MIT/Apache-2.0 countmapSimple map to count occurences of supplied keys73,322MIT/Apache-2.0 countmeCounts the number of live instances of types21,712,280MIT OR Apache-2.0Development tools::Profiling countmergeA command-line tool that adds counts for sorted keys2,236MIT countriesAll world countries, ISO- codes and data points about them, as well as tools for interfacing with that data.3,065MIT/Apache-2.0 countries-iso3166Simple Conversion for Country Codes and Names using ISO 31664,488MIT OR Apache-2.0Internationalization (i18n)Localization (L10n) countries-toolsISO 3166 country codes and names optimized, no-std, no-alloc and without unsafe2,800Unlicense countrooCountroo is a tool to give basic code analysis inside your rust projects, it supports line counting, module counting, dependency…10,712non-standardCommand line utilitiesDevelopment tools countrsA simple countdown (or up!) with adjustable start and end times8,915GPL-3.0-or-laterDate and time countryA Rust library providing a single source of truth for country enumeration and their associated ISO 3166-1 alpha-2 and alpha-3…22,802MITData structuresDevelopment tools country-boundariesA fast offline reverse country geocoder90,068Apache-2.0Internationalization (i18n) country-codeCountry Code14,251Apache-2.0 OR MIT country-code-enumCopyable Serde and Sqlx compatible country codes10,347MIT country-emojiConverts between country names, ISO 3166-1 codes and flag emojis.48,906MITData structuresEncoding country-parserA simple country parser library. Currently contains all ISO 3166-1 countries.36,016MIT/Apache-2.0 countrycodehttps://countrycode.org/ ALL COUNTRY CODES5,996Apache-2.0 OR MIT countryfetchA Command-line tool similar to Neofetch for obtaining information about your country3,704MIT countryipGet a random IP address from a country.1,558MITCommand line utilities countsA command line tool for ad hoc profiling.21,240UnlicenseCommand line utilitiesDevelopment tools::Profiling coupThe COUP game implemented in the CLI6,311GPL-3.0-or-laterCommand-line interfaceGame development coupeCoupe is a mesh partitioning library. It implements composable geometric and topologic algorithms.4,584MIT OR Apache-2.0AlgorithmsMathematics