All 305,250 crates, alphabetically

uintsUnsigned Integer Properties24,418Apache-2.0 uintxUnaligned unsigned integers with exact size in memory and arithmetic operations for them9,112MIT OR Apache-2.0Data structures uintxxuintxx – extended unsigned integer library1,577MIT uioHelper library for writing linux user-space drivers with UIO.358,414MIT uiohook-rsuiohook-rs is a Rust wrapper for the libuiohook, providing cross-platform keyboard and mouse hooking capabilities.7,278GPL-3.0 uipA tool to quickly determine the public IP address of a machine behind NAT with the help of STUN servers.9,167MIT OR Apache-2.0 uip-solana-sdkUniversal Interoperability Protocol Solana SDK7,838MIT uir-coreCore definitions of Universal Intermediate Representation1,525MPL-2.0Compilers uira-agentCore agent loop, state machine, streaming, and context management for Uira333MIT uira-cliCLI entry point with session management for Uira44MIT uira-comment-checkerAI-assisted comment quality analysis using tree-sitter693MIT uira-commit-hook-cliStandalone CLI for git hooks and AI-assisted dev workflows41MITCommand line utilitiesDevelopment tools uira-coreShared types, events, protocol definitions, and configuration loading for Uira658MIT uira-gatewayGateway server with Slack, Telegram, and Discord integrations for Uira118MIT uira-mcp-clientMCP client runtime for consuming external MCP tools532MIT uira-mcp-serverMCP server with LSP and AST-grep tools for Uira44MIT uira-memoryLocal semantic memory system for Uira with hybrid search662MIT uira-orchestrationAgent definitions, SDK, tool registry, and hook implementations for Uira468MIT uira-oxcOXC-powered JavaScript/TypeScript tools for Uira191MIT uira-providersMulti-provider model clients (Anthropic, OpenAI, Gemini, Ollama) with OAuth authentication396MIT uira-securityPlatform-native sandboxing (macOS/Linux) and permission management for Uira532MIT uira-tuiRatatui-based terminal interface for Uira117MIT uitestDesktop UI test library1,049MIT OR Apache-2.0 uiuaA stack-based array programming language126,177MITAlgorithmsCompilers uiua-doc-genDocumentation generator for Uiua libraries10,620MIT uiua-nokhwaA Simple-to-use, cross-platform Rust Webcam Capture Library5,086Apache-2.0API bindingsMultimedia uiua-nokhwa-bindings-linuxThe V4L2 bindings crate for `nokhwa`4,405Apache-2.0 uiua-nokhwa-bindings-macosThe AVFoundation bindings crate for `nokhwa`4,407Apache-2.0 uiua-nokhwa-bindings-windowsThe Windows Media Foundation bindings crate for `nokhwa`4,390Apache-2.0 uiua-nokhwa-coreCore type definitions for nokhwa5,189Apache-2.0 uiua_parserUiua parser implementation12,853MITAlgorithmsCompilers uiuifree-actix-web-utilutil5,080MIT uiuifree-crawl-cacheCrawl Cache4,375MIT uiuifree-dictionaryMy MecabDic Util5,169MIT uiuifree-elasticMy ElasticSearch Util68,099MIT uiuifree-image-convertMy Image Convert Util5,450MIT uiuifree-mecabuiuifree mecab2,677MIT uiuifree-normalizeuiuifree text normalize3,485MIT uiuifree-testパッケージ公開検証1,582MIT uiuifree-text-datacsv and excel convert11,662MIT uixSelf use toolkits7,213MIT OR Apache-2.0 uj-tcs-rust-2023-13A short description of my package1,851MIT OR Apache-2.0 uj-tcs-rust-23-1188997A Rust project that does CLI for head and tail commands.1,462MIT uj-tcs-rust-23-26simple CLI with 'head' and 'tail' way to read files.2,854MIT uj_tcs_rust_23_1188A Rust project that does CLI for head and tail commands.2,668MIT uj_tcs_rust_23_17A Rust project that does CLI for head and tail commands.2,650MIT uj_tcs_rust_23_18fun head and tail that print n firstl/ last lines3,680MIT uju-cw2-commonA package for common utilities for CosmWasm 2.0 contracts5,304BUSL-1.1 uju-cw2-index-queryA package for common utilities for CosmWasm 2.0 contracts1,104BUSL-1.1 uju-cw2-nftA package for interacting with NFTs in CosmWasm 2.0 contracts1,163BUSL-1.1 uju-cw2-tfA package for interacting with the TokenFactory module in CosmWasm 2.0 contracts1,099BUSL-1.1 uju-index-queryA package for common utilities for CosmWasm 2.0 contracts1,194BUSL-1.1 uju-sylvia-ownableA package for interacting with the TokenFactory module in CosmWasm 2.0 contracts2,766BUSL-1.1 ujumbe_smsA client library for the UjumbeSMS API1,555MIT uk-botTwitch Bot written in Rust.1,790Apache-2.0 uk-paye2025/26 UK income tax (England/Wales/NI) bands, personal allowance taper, and National Insurance.24MITFinanceMathematics uk-police-apiA Rust wrapper for the UK Police API199MITAPI bindings uk-postcodeParse, validate, and normalize UK postcodes with no dependencies46MITInternationalization (i18n)Parser implementations uk-taxA Rust library that calculates UK PAYE Income Tax and Class 1 National Insurance contributions with historical tax year support.1,499MITFinance uk-trainsCrate for accessing Great Britain train information easily627non-standard uk_modulus_checkingmodulus checking for uk bank account sort codes and account numbers, using vocalink specification1,783MIT OR Apache-2.0 ukalmanSuper tiny zero allocation filters for embedded1,735MIT ukanrenRust implementation of µKanren, a featherweight relational programming language.6,448MIT ukeboxA ukulele chord toolbox in Rust12,004MIT OR Apache-2.0Command line utilities ukernel-sysSystem interface types for µKernel — a Rust microkernel with hypervisor and real-time scheduling. Defines kernel operations,…25MIT OR Apache-2.0Embedded developmentNo standard library uketoruSimple SMTP Relay1,006MIT ukeygenAn uniform random key generator2,628MITCommand line utilities ukfunscented Kalman filter4,569MIT ukhasnet-parserA parser for the UKHASnet protocol15,505MIT ukhsUniversal K-mer Hitting Sets3,948MIT/Apache-2.0AlgorithmsScience ukiUki is a fast, simple and cross-platform UDP and TCP packet forwarder and encryptor.10,354MIT OR Apache-2.0Network programming ukiapiA high-performance Rust web framework inspired by FastAPI35MITAsynchronousWeb programming ukiapi-cliCLI for UkiApi — run and develop UkiApi projects17MIT ukiapi-macrosProcedural macros for UkiApi web framework122MIT ukiyoHigh-performance JPEG resize server (PoC). Name reservation release — APIs will change.24MIT OR Apache-2.0 ukiyoeA library for rendering images to the terminal9,795MIT OR Apache-2.0 uklatnUkrainian Cyrillic transliteration to Latin script2,372MITText processing uklidInteractively delete node_modules.5,134MIT ukma_practice2_2025_filiushkinFor learning to upload crates for NaUKMA Rust course of 2025217MIT ukma_url_parserThis Rust project provides functionality for parsing URLs and their components (such as protocol, domains, parameters, etc.)…996MIT ukr_translitThis is a CLI transliterator from Ukrainian Cyrillic to Latin962MIT ukraineGlory to Ukraine. Library for transliterating Ukrainian Cyrillic text into Latin script representation4,680LGPL-3.0-only ukrainianUkrainian inflection and morphology. Work in progress — name reserved while the implementation is developed.20MIT OR Apache-2.0Text processing ulHigh Level Bindings to Ultralight SDK14,788MIT ul-nextUltralight Rust bindings19,329non-standardAPI bindingsGraphics ul-next-syssys bindings for Ultralight, for ul-next10,765non-standardAPI bindingsGraphics ul-sysBindings to Ultralight Framework (Ultralight, AppCore)22,275MIT ulagenGenerate random IPv6 Unique Local Address (ULA) /48 prefixes per RFC 4193, as a library and CLI.23MITCommand line utilitiesNetwork programming ulaiul: Universal Layer. AI that knows your work and never forgets.34BUSL-1.1 ulala-say-helloLib for say hello and goodbye4,172Apache-2.0 ulamUtility crate for ulam calculations.18,248MIT ulam-leapersSimulator for generalizations of https://oeis.org/A392177.37Unlicense ulanglanguage library for all universal-scripting language operations1,520Apache-2.0 uldaqrsRust bindings for uldaq lib499MIT uldbAgentic AI database -- storage engine and server65BUSL-1.1Database implementations uldren-loom-cliUldren Loom command-line tool (installs as the `loom` binary).46BUSL-1.1 uldren-loom-conformanceShared conformance vectors and a generic runner that any Uldren Loom backend must pass.49BUSL-1.1 uldren-loom-coreUldren Loom core engine: content-addressed object model and provider contract.100BUSL-1.1 uldren-loom-ffiC ABI for Uldren Loom (cdylib + staticlib); the contract every language binding wraps.45BUSL-1.1 uleULE (Unidirectional Lightweight Encapsulation, RFC 4326 + RFC 5163) — IP over MPEG-2 TS: SNDU encapsulation, extension-header…62MIT OR Apache-2.0Network programmingNo standard library ulflowulflow: The agentic AI orchestration engine. Native Rust. Vertically integrated.62BUSL-1.1Development tools ulgateulgate: HTTP API gateway for the ULMEN ecosystem. Bring your model, watch magic happen.39BUSL-1.1Web programming ulhwulhw: Hardware intelligence for AI. Know your machine. Run the right model.28BUSL-1.1Hardware support uliULI - Universal Ledger Identity. Sovereign L1 for decentralized identity and ZK infrastructure. Mainnet crates land here soon.24AGPL-3.0-onlyCryptography uli-cliCommand-line interface for account management and chain interaction.25AGPL-3.0-onlyCryptography uli-clientReserved — lightweight client library.27AGPL-3.0-onlyCryptography uli-codecDeterministic binary serialization codec for the ULI protocol.25AGPL-3.0-onlyCryptography uli-consensusFast HotStuff BFT consensus engine with pipelined voting.28AGPL-3.0-onlyCryptography uli-coreReserved — core protocol re-exports.25AGPL-3.0-onlyCryptography uli-cryptoCryptographic primitives: Ed25519, BLS12-381, FROST threshold signatures, Poseidon hashing.15AGPL-3.0-onlyCryptography uli-daData availability layer: blob anchoring and retrieval.15AGPL-3.0-onlyCryptography uli-indexerBlock and transaction indexer for query services.15AGPL-3.0-onlyCryptography uli-mempoolTransaction mempool with nonce-ordering, sponsorship admission, and fee priority.12AGPL-3.0-onlyCryptography uli-networkP2P networking layer: gossip, block sync, peer management.12AGPL-3.0-onlyCryptography uli-nodeFull node binary combining consensus, networking, RPC, and runtime.13AGPL-3.0-onlyCryptography uli-primitivesCore protocol types: transactions, blocks, accounts, validators.12AGPL-3.0-onlyCryptography uli-rpcJSON-RPC server for node interaction.13AGPL-3.0-onlyCryptography uli-runtimeState transition logic and transaction execution engine.12AGPL-3.0-onlyCryptography uli-sdkClient SDK for building applications on ULI.12AGPL-3.0-onlyCryptography uli-stateKey-value state store abstraction (RocksDB / in-memory).12AGPL-3.0-onlyCryptography uli-typesReserved — shared type definitions.12AGPL-3.0-onlyCryptography uli-walletReserved — wallet and key management.12AGPL-3.0-onlyCryptography uli-zkZero-knowledge proof circuits and verification (Groth16, Plonk).13AGPL-3.0-onlyCryptography ulibUniversal data storage library for CPU/GPU heterogeneous applications10,366AGPL-3.0-only ulib-deriveThe inner procedural macros for ulib. Not intended to be used directly.2,990AGPL-3.0-only ulibrsA simple but universal library written in Rust.1,397MIT ulida Universally Unique Lexicographically Sortable Identifier implementation25,657,194MIT ulid-cliA very simple CLI to generate and parse ULIDs29,369WTFPLCommand line utilities ulid-generator-rsA Rust crate for generating ULIDs161,667MIT OR Apache-2.0Data structuresDate and time ulid-liteULID generation library and command-line utility3,928BlueOak-1.0.0 OR Apache-2.0Command line utilities ulid-rsRewrites https://github.com/suyash/ulid from C++ to Rust9,814MIT OR Apache-2.0 ulidgensimple ulid generator1,728MIT ulkernelulkernel: Hardware-aware inference kernel for AI. Tokenizer, packing, tiled dispatch.26BUSL-1.1Algorithms ullProvides core primitives for the ull emulation project.218MITEmulators ull65ull65 is a no_std CPU emulator for the MOS 6502 and WDC 65C02.176MITEmulators ullageThe Ullage Programming Language1,848MITParsing tools ullarA high-performance, accessible phylogenomic pipeline1,451MITCommand line utilitiesScience ullerGenerate/Donwload your links6,409MITAsynchronousNetwork programming uller_macroMacro-crate for uller4,783MIT ullun-apiExpress.js-inspired web framework for Rust - simple, fast, batteries-included38MIT OR Apache-2.0Web programming::HTTP server ulmAI-powered manpage assistant using local LLM194MIT OR Apache-2.0Command line utilities ulmcpUlmen Context Protocol: native tool protocol for agentic AI59BUSL-1.1API bindingsDevelopment tools ulmenulmen-core Python bindings (thin PyO3 wrapper)34BUSL-1.1 ulmen-coreULMEN agent protocol: encode, decode, validate, compress. Pure Rust, zero dependencies.135BUSL-1.1EncodingNo standard library ulmensaA command-line tool that fetches and shows the current meal plans from Ulm University's canteen.874GPL-3.0-or-later ulmpUlmen Message Protocol -- wire protocol for agentic AI134BUSL-1.1EncodingNetwork programming uln2003A simple crate to use a 28BYJ-48 stepper motor with and ULN2003 Driver on any hardware implementing embedded_hal8,353MIT OR Apache-2.0Embedded development ulock-sysRust bindings for Darwin's (e.g. macOS, iOS, ...) not-entirely-public ulock API, which provides futex-like functionality.13,033Apache-2.0 OR Zlib OR MITAPI bindingsConcurrency ulockmgrPassthrough file locking for FUSE91MITAPI bindingsExternal FFI bindings ulogA small logging library (not only) for hard real-time logging.8,568MIT ulog-rsA parser for the PX4 ULog file format3,664MITAerospace::DronesAerospace::Unmanned aerial vehicles uloggerLightweight, flexible, and feature-rich logging library for Rust, supporting console and file output with multiple log levels,…51MITCommand line utilitiesDevelopment tools ulrich_nyx_guessing_gameThe classic number guessing game with a leaderboard!827MIT OR Apache-2.0 uls-apiREST API server for FCC ULS data access373MIT OR Apache-2.0 uls-cliCLI tool for FCC ULS data retrieval and management267MIT OR Apache-2.0Command line utilitiesDatabase interfaces uls-coreCore data types and models for FCC ULS data786MIT OR Apache-2.0 uls-dbSQLite database layer for FCC ULS data storage609MIT OR Apache-2.0 uls-downloadFCC ULS file download and synchronization359MIT OR Apache-2.0 uls-parserParser for FCC ULS pipe-delimited DAT files661MIT OR Apache-2.0 uls-queryQuery engine for FCC ULS data lookups538MIT OR Apache-2.0 ulskiulski: Native Rust repo intelligence. Parse any codebase into structured knowledge for AI agents.43BUSL-1.1Development toolsParser implementations ultdocs(Experimental) Static site generator for API's, Postman and markdown documents1,574MIT ultibiUltibi is a BI tool for no code data analysis1,857non-standard ultibi_coreUltibi is a BI tool for no code data analysis2,852non-standard ultibi_serverUltibi is a BI tool for no code data analysis1,983non-standard ultibuilderA library to build ultidocs websites239Apache-2.0 OR MITWeb programming ultidocs-cliA cli application to develop documentation sites162Apache-2.0 OR MITWeb programming ultidocs-macrosMacros for building ultidocs324Apache-2.0 OR MITWeb programming ultihighlighterA simple highlighter to highlight markdown codeblocks and convert to html379Apache-2.0 OR MITWeb programming ultijsonA simple json parser for ultidocs manifests314Apache-2.0 OR MITWeb programming ultilinterA simple linter library240Apache-2.0 OR MITWeb programming ultima-dbHigh-performance transactional embedded database53Apache-2.0Data structuresDatabase implementations ultima-vectorHNSW vector search built on UltimaDB15Apache-2.0Database implementations ultimateRust libraries1,517non-standard ultimate-commonRust libraries1,789non-standard ultimate-tttUltimate Tic Tac Toe - Game engine2,099MIT ultimate64Rust library and command line interface for networking with Ultimate-64 and Ultimate-II+ devices using the REST API7,080MIT OR Apache-2.0Command line utilities ultimate_loggerA simple logger for Rust5,730GPL-3.0-only ultimatehostsblacklistreserved1,295Apache-2.0Command line utilities ultimd2htmlA markdown to html converter for ultidocs317Apache-2.0 OR MITWeb programming ultimeThe ultimate full-stack experience6,091MITCommand line utilities ultiminifyA minifier for ultidocs530Apache-2.0 OR MITWeb programming ultimoModern Rust web framework with automatic TypeScript client generation429MITWeb programmingWeb programming::HTTP server ultimo-cliCLI tool for Ultimo web framework - Generate TypeScript clients, scaffold projects, and more356MITCommand line utilitiesDevelopment tools ultnoteTakes from VS Code Notebook, runs it, and returns output and errors2,761MIT ultraCryptanalysis of the Engima.14,598MIT ultra-batchTokio-based library to batch and cache database queries or other data lookups12,236MIT OR Apache-2.0AsynchronousCaching ultra-nlpA NLP library.18,228MIT ultra-utilsUtilities for Rust1,593MIT ultra_faster_producerRust wrapper for librdkafka1,593MITAPI bindings ultra_hash_0xUltraHash-0x: A fast, 64/128-bit hashing engine created by Seleste Scorpion (God Ace).71MIT ultra_tournamentLibrary for running single-elimination tournament brackets.1,683MIT OR Apache-2.0 ultraapiA FastAPI-inspired Rust web framework with automatic OpenAPI generation26MITAPI bindingsAsynchronous ultraapi-macrosProc macros for UltraAPI103MITDevelopment tools::Procedural macro helpersWeb programming ultracycleplanplanning tool for ultra-endurance cycling events1,463GPL-3.0-or-later ultrafast-gatewayHigh-performance AI gateway built in Rust with unified interface to 10+ LLM providers1,562MITAPI bindingsWeb programming::HTTP server ultrafast-mcpHigh-performance, ergonomic Model Context Protocol (MCP) implementation in Rust14,552MIT OR Apache-2.0API bindingsAsynchronous ultrafast-mcp-authAuthentication and authorization for ULTRAFAST MCP16,031MIT OR Apache-2.0API bindingsAsynchronous ultrafast-mcp-cliCommand-line interface for ULTRAFAST MCP1,197MIT OR Apache-2.0API bindingsAsynchronous ultrafast-mcp-clientClient implementation for UltraFast MCP14,969MIT OR Apache-2.0API bindingsAsynchronous