All 305,250 crates, alphabetically

uploading_a_cargo_crateJust learning how to upload a crate649GPL-3.0 uploads-im-clientBindings to the Uploads.im web API4,671Apache-2.0/MITAPI bindingsMultimedia::Images uploatShare files between multiple devices effortlessly.1,826GPL-3.0-only uplockA futures-aware RwLock with ref_count, upgrade, and downgrade methods7,834Apache-2.0Concurrency uplogLightweight observability agent — tails logs, collects metrics, ships JSON over HTTP20MITCommand line utilities upmUniversal Package Manager - Cross-platform package manager77MIT upm_libUniversal Package Manager is a way to perform basic package management across a range of package managers such as Apt, Pip, and…3,458MIT upmanA CLI tool for managing universal projects.4,304MIT upmarto-cliUpmarto CLI — init, track, workflow, session, explain19MITCommand line utilitiesDevelopment tools upmarto-sdkUpmarto Rust SDK — v1 API client for AI agent event capture32MITAPI bindingsDevelopment tools upmdInteractive Markdown runner with inline code execution25MIT upnupn2,354MulanPSL-2.0 upn-labPlaceholder for UPN Lab - a universal polyglot notebook environment. Full release forthcoming.14Apache-2.0 upnlabPlaceholder for UPN Lab - a universal polyglot notebook environment. Full release forthcoming.14Apache-2.0 upnp-clientA simple UPnP client written in Rust23,207MITCommand line utilitiesNetwork programming upnp-daemonA daemon for continuously opening ports via UPnP.13,343WTFPLCommand line utilitiesNetwork programming upnp-rsProvides basic Universal Plug and Play (UPnP) protocol implementations3,519MITNetwork programmingParser implementations upnpsimUPnP IGD router simulator for testing24AGPL-3.0-onlyDevelopment tools::TestingNetwork programming upodeshA Rust library for generating Bengali word suggestions based on a given input string.4,521MIT uponA simple, powerful template engine with minimal dependencies and configurable delimiters413,428MIT OR Apache-2.0Template engine upower_dbusUPower info via zbus68,247MITOperating systems::Unix APIs uppA simple, batteries-included, selfhosted uptime monitor for your infra811GPL-3.0 upperaddTerminal-first, SurrealDB-backed note-taking library + CLI, with Nushell integration and shell-command memos.16MITCommand line utilitiesDatabase interfaces uppercutSmall and simple actor model implementation10,054MIT uppsalaA pure Rust XML parser, DOM, namespace, XPath, and XSD validation library45,663BSD-2-ClauseEncodingParser implementations uprsA wrapper for the Up Bank API.1,528non-standard upsA rust implementaiton of a UPS file patcher7,193MIT ups-low-battery-levelApplication for sending SMS notifications about UPS operation.2,782Apache-2.0 ups-off-computersApplication for sending SMS notifications about UPS operation.1,544Apache-2.0 upscA cross-platform upscaler for wgpu! 🚀268MIT OR Apache-2.0 upscayl_appUpscayl AI Image Upscaler Online Free - Enhance & Unblur Photos - SEO backlink crate.24MITAPI bindings upsftA simple CLI tool to update multiple dependencies92MIT upshotReserved24MIT upside-downSilly command line program that flips text upside down1,865GPL-3.0 upskCLI for upsk.to — AI-taught engineering bootcamp61MIT upskillAuthor and distribute AI-assistance content across coding agents99MITCommand line utilitiesDevelopment tools upspinA small wrapper for the upspin tool1,951MIT/Apache-2.0 upstash-qstashUnofficial Rust client for Upstash QStash6,031MIT OR Apache-2.0 upstash-ratelimitUpstash ratelimit compatible rate limiting library.1,939MITWeb programming upstash-ratelimit-rsAn unofficial Upstash rate limiting SDK in Rust4,022MIT upstash-redis-rsA upstash redis API client.3,755Apache-2.0/MITWeb programming::HTTP client upstox-rust-sdkSDK to access Upstox's Uplink APIs programmatically7,331MPL-2.0API bindingsAsynchronous upstreTrack the latest value from a stream with automatic retry and shared read access29Apache-2.0AsynchronousCaching upstreamThe mock HTTP upstream for development of HTTP applications and reverse proxies.1,523MITCommand line utilities upstream-moduleA helper module to configure Pingora's upstream selection.1,388Apache-2.0Network programmingWeb programming::HTTP server upstream-ontologisttracking of upstream project metadata73,011GPL-2.0+ upstream-rsFetch package updates directly from the source.1,185MIT OR Apache-2.0Command line utilitiesDevelopment tools upsunA crate to interact with the upsun service1,434MIT upsyncCross-language project porting and sync tool powered by AI agents24MITCommand line utilitiesDevelopment tools uptUniversal package management tool for any OS16,995MIT OR Apache-2.0Command line utilities upt-pleaseUniversal package management tool for any OS1,836MITCommand line utilities uptestsubstrate rUntime uPgrade TESTing suit4,001MIT uptest-clisubstrate rUntime uPgrade TESTing suit2,578MIT upticeasy-to-use (/proc/)uptime crate2,408MIT uptimeuptime(1)3,216MIT uptime_kuma_clientWIP client to connect to https://github.com/louislam/uptime-kuma10,392MIT uptime_kuma_pushersimple pusher client for https://uptime.kuma.pet/3,191Apache-2.0 uptime_libMulti-platform uptime library411,292MITOperating systems uptimerA multiplatform library to get the uptime of the current process.2,120MIT OR Apache-2.0 uptionA tool to collect and export network performance metrics on Linux devices.15,271MIT uptoFixed-capacity and variable length stack allocated arrays4,241MIT OR Apache-2.0Data structuresMemory management upto-cliA CLI tool for managing uptime monitoring68MIT uptown_funkDefine host functions compatible with Wasmer and Wasmtime4,061Apache-2.0/MIT uptown_funk_macroHelper macro for the uptown_funk crate3,704Apache-2.0/MIT uptraceOpenTelemetry Rust distribution for Uptrace7,151non-standard uptrakit-backoffUptrakit shared backoff: deterministic exponential-backoff helper25MIT OR Apache-2.0 uptrakit-build-infoUptrakit shared build-info: compile-time version and git metadata59MIT OR Apache-2.0 uptrakit-openapi-clientTyped HTTP client for the Uptrakit web API98MIT OR Apache-2.0 uptrakit-service-sdkUptrakit service SDK — lifecycle, identity, TLS, wire protocol, and surface types for Uptrakit-managed services99MIT OR Apache-2.0 uptrakit-shared-macrosUptrakit shared procedural macros177MIT OR Apache-2.0 uptrakit-shared-typesUptrakit shared types: cross-crate enums, ids, and value objects218MIT OR Apache-2.0 uptrakit-surfacesShared surface contracts for built-in and provider UI integration223MIT OR Apache-2.0 uptrakit-web-api-typesShared HTTP request/response types for the Uptrakit web API128MIT OR Apache-2.0 uptrakit-wireUptrakit shared wire protocol: WS, NATS, and REST message types191MIT OR Apache-2.0 upubcore inner workings of upub2,764AGPL-3.0 upub-binTraits and types to handle ActivityPub objects490AGPL-3.0 upub-clicli maintenance tasks for upub721AGPL-3.0 upub-migrationsdatabase migrations for upub708AGPL-3.0 upub-routesapi route definitions for upub732AGPL-3.0 upub-webweb frontend for upub499AGPL-3.0 upub-workerupub background activity processing and dispatching workers726AGPL-3.0 upulseA lightweight CLI tool for monitoring website availability. Pulse concurrently checks a list of URLs on a fixed interval and…18MIT upv-cliA CLI tool for managing VPN and network shares from UPV (Universitat Politècnica de València) on Windows.3,350MIT OR Apache-2.0Command line utilitiesNetwork programming upversionprovides you to notify your clients when new version released1,559Apache-2.0 upvertexReserved name for the upcoming UpVertex official SDK.19MIT upvertex-clientReserved name for the upcoming UpVertex official client.19MIT upvertex-libReserved name for the upcoming UpVertex official library.19MIT upvertex-sdkReserved name for the upcoming UpVertex official SDK.18MIT upwaitBlock until a port or URL is up — the missing glue for startup scripts.14MIT upwdRandom password generator11,335MIT OR Apache-2.0Command line utilities upwd-libLibrary for generating passwords6,509MIT OR Apache-2.0 upwork-wlroots-bridgeImplementation for Wlroots (Sway, Wayfire, Hikari, River, etc.) of Gnome Screenshot and Idle DBUS Server, which Upwork uses to…7,476MITCommand line utilities upxPlace holder: UPX parsing618MIT upxzTiny single-binary file packer. One file in, one file out, magic-checked, zstd-packed.20Apache-2.0Command line utilitiesCompression upyrA privacy-first, cross-platform English-Ukrainian keyboard layout fixer18MITCommand line utilitiesInternationalization (i18n) upyr-audioDependency-free procedural sound packs for Upyr21MITMultimedia::Audio upyr-corePortable English-Ukrainian layout conversion and correction engine for Upyr20MITInternationalization (i18n)Text processing upyunUPYUN sdk for rust. The version 0.0.0 is just published as a placeholder. Please wait for the v0.1.0 comes out.2,960MIT upyun-sdkUpyun sdk for rust.7,246MIT uqsort | uniq alternative.6,233MIT uqoin-coreCore algorithms that implement Uqoin protocol in Rust.2,528MIT uqueryA simple library to display information to the user and to query them for information in a bright, colourful manner.8,842LGPL-3.0Command-line interface urA Rust implementation of Uniform Resources91,238MIT ur-commit-mentorA CLI tool that analyzes git commits and provides AI-powered code review insights (for now only works with Claude API)3,600MITCommand line utilitiesDevelopment tools ur-coreProvider-agnostic core types for ur56MIT OR Apache-2.0API bindingsAsynchronous ur-deepseekDeepSeek provider for ur32MIT OR Apache-2.0API bindingsAsynchronous ur-gruez-machine interpreter library.1,757AGPL-3.0-or-later ur-macrosProcedural macros for ur66MIT OR Apache-2.0API bindingsAsynchronous ur-openaiOpenAI provider for ur34MIT OR Apache-2.0API bindingsAsynchronous ur-parse-libUR parsing and encoding helpers built on Keystone UR registry54,519MIT ur-registryKeystone UR registry types and encoders/decoders for multi-chain payloads54,388MIT ur-registry-ffiFFI bindings for Keystone UR registry118MIT ur-rsAsync tool-using LLM agents over a pluggable provider backend18MIT OR Apache-2.0API bindingsAsynchronous ur-scriptUR e-series controller written in rust. Designed to be deployable on embedded systems without access to std.3,791CC-BY-NC-4.0ConcurrencyData structures ur-taking-me-with-youEnsure child processes die when their parent dies2,591MIT OR Apache-2.0Development toolsOperating systems ur20Rust library for the Weidmüller u-remote IP20 system16,407MIT/Apache-2.0 ur20-ethercatModbus EtherCAT fieldbus coupler (`UR20-FBC-EC`) implementation1,682MIT/Apache-2.0 ur20-modbusModbus TCP fieldbus coupler (`UR20-FBC-MOD-TCP`) implementation10,043MIT/Apache-2.0 uraeusCommand line utilities to check StarkNet contracts written in Cairo.2,791non-standardCommand line utilities urandomProduce and consume randomness, to convert them to useful types and distributions, and some randomness-related algorithms.39,066MITAlgorithmsNo standard library uranioUranio rust package1,466MIT uraniumradioactivity done right1,232MITCommand line utilities uranium-rsLib for downloading/making minecraft and modpacks1,327GPL-2.0 uranusA simple proc-macro crate with functionality to obtain the readme or license text of a package.209MIT uranussUranus celestial simulation crate for the MilkyWay SolarSystem workspace70MITScienceSimulation urapSpecification and library for the URAP protocol3,273MITDevelopment toolsEmbedded development urathHigh-performance voxel meshing algorithms75MIT OR Apache-2.0 urath-wasmWASM bridge for urath-core21MIT OR Apache-2.0 urbanUrban Dictionary API client1,590MITAPI bindings urban-lookupLook up cool slang words in the terminal!1,857MIT urban-rsAn API library to interract with Urban Dictionary.3,463MITAPI bindings urbandictUrban Dictionary API client in Rust.4,422MIT urbandictionaryUnofficial Rust wrapper for the UrbanDictionary API11,939ISCAPI bindingsWeb programming urbitUrbit utilities4,399MIT OR Apache-2.0 urbit-chatbot-frameworkA framework that allows anyone to create an Urbit Chatbot with only a few lines of code.4,069MIT urbit-http-apiWraps the Urbit ship http api exposing it as an easy-to-use Rust crate.32,362MIT urbit-obUtilities for formatting and parsing Urbit's @p and @q data types (patp/patq).10,043MIT urbit-qEncode and decode data in Urbit's @q format15,050MITEncoding urcunsafe shared ptr3,169MIT urchinMulti-threaded userland task scheduling4,123MIT urcl-rsA blazingly fast URCL emulator3,873MIT urcrypt-rustRust bindings for the urcrypt library.1,098non-standard urcrypt-sysRust bindings for the urcrypt library.3,137non-standard urcusafe wrapper of the memb variant of the userspace RCU library4,019LGPL-2.1-or-laterConcurrencyMemory management urcu-sysSystem bindings for urcu (user-space rcu)8,503LGPL-2.1AlgorithmsConcurrency urcu2Safe API to liburcu3,719GPL-3.0-or-later urcu2-bp-sysBindings to liburcu-bp4,900GPL-3.0-or-later urcu2-cds-sysBindings to liburcu-cds1,405GPL-3.0-or-later urcu2-mb-sysBindings to liburcu-mb4,027GPL-3.0-or-later urcu2-memb-sysBindings to liburcu-memb3,231GPL-3.0-or-later urcu2-qsbr-sysBindings to liburcu-qsbr3,215GPL-3.0-or-later urcu2-srcRedistribution of liburcu as a crate8,767LGPL-2.1-only urcu2-sysBindings to liburcu9,448GPL-3.0-or-later urdDialogue scripting language for games — compiler, VM, and static analysis139MIT-0CompilersGame development urd-deriveDerive macros for the urd scripting language139MIT-0Development tools::Procedural macro helpers urd-lspLanguage Server Protocol implementation for the Urd dialogue scripting language20MIT-0Development tools urd-questInteractive terminal runner for Urd dialogue scripts21MIT-0Command line utilitiesGame development urd-storeReserved placeholder for Urd, an on-disk substrate store. No functionality yet.16MIT OR Apache-2.0 urd-store-coreReserved placeholder for the Urd on-disk substrate core library (the open core behind the urd-store CLI). No functionality yet.16MIT OR Apache-2.0 urdf-rsURDF parser1,200,522Apache-2.0Data structuresParsing tools urdf-vizURDF visualization138,379Apache-2.0Visualization urdictUrban dictionary commandline tool and dict server34,790MIT OR Apache-2.0 urdigurdig is a tool, which can be used to display informations about several (udev)-devices.4,099 BSD-3-Clause ureeves-userfaultfdRust bindings for the Linux userfaultfd functionality1,111MIT OR Apache-2.0 ureeves-userfaultfd-sysLow-level bindings for userfaultfd functionality on Linux.1,348MIT OR Apache-2.0 ureeves-wasmtimeHigh-level API to expose the Wasmtime runtime3,861Apache-2.0 WITH LLVM-exception ureldUreld is a simple & fast URLs de-cluttering tool written in Rust.130GPL-3.0-onlyCommand line utilitiesSecurity ureqSimple, safe HTTP client164,471,052MIT OR Apache-2.0Web programming::HTTP client ureq-protoureq support crate63,222,844MIT OR Apache-2.0 ureq_multipartureq multipart post toolkit33,884MIT OR Apache-2.0Web programming::HTTP client uresampHIFI uresamp delivers ultrasonic-fidelity text resampling via adaptive 64-bit floating-point spectral mapping, preserving Unicode…1,874non-standard urexwip UnityRustExtractor and patcher3,878MIT OR Apache-2.0 urex-binary-ioImplementation of endianed BinaryReaders for use in urex.3,669MIT urgentWill fill with awesome library later.1,628MIT urgeoptsrich getopts replacement for shell script4,310MITCommand-line interfaceCommand line utilities uriDeprecated, use url crate instead25,329MIT/Apache-2.0 uri-builderSimple URI builder library3,142Unlicense/MIT uri-formatteruri formatting tool conforming to rfc39863,982MIT uri-parsing-rsA Rust crate for URI1,623MIT OR Apache-2.0Data structuresEncoding uri-pattern-matcherURI (or path) pattern matching7,492MIT OR Apache-2.0 uri-pctPercent encode/decode uri components or strs3,047Artistic-2.0EncodingWeb programming uri-plzUri parser for the ParsePlz ecosystem600MIT uri-registerA high-performance PostgreSQL-backed URI dictionary service for assigning unique integer IDs to URIs275Apache-2.0Database interfaces uri-resourcesResource URI building library11,221non-standard uri-routesURI building library5,278non-standard uri-rsA Rust crate for URI5,313MIT OR Apache-2.0Data structuresEncoding uri-templateRFC6570 URI Template library for Rust, with parsing, expansion, compile-time checked macros, and no_std support.96MIT OR Apache-2.0Network programmingNo standard library uri-template-coreRFC6570 URI Template library for Rust, with parsing, expansion, compile-time checked macros, and no_std support.295MIT OR Apache-2.0Network programmingNo standard library uri-template-exRFC6570 URI Template Level 2 implementation5,787MIT OR Apache-2.0Web programming uri-template-macrosRFC6570 URI Template library for Rust, with parsing, expansion, compile-time checked macros, and no_std support.142MIT OR Apache-2.0Network programmingNo standard library uri-template-systemURI Template (RFC 6570) Parsing, Expansion and Matching20,534AGPL-3.0-onlyData structuresNetwork programming uri-template-system-coreURI Template System Core (prefer top-level URI Template System)20,923AGPL-3.0-onlyData structuresNetwork programming uri-urlEfficient Conversion of URIs and URLs14,558MPL-2.0EncodingWeb programming uri_encodeURI percent-encoding (encodeURI, encodeURIComponent, urlencode)33,176ISCEncodingWeb programming uri_parserSimple URI parser with zero copy and easy access to all URI parts12,369MIT/Apache-2.0 uri_parser_gdvURI Parser is a pest-based parser that breaks URIs into structured components.4,992MIT uri_path_routerA proc-macro crate that generates flattened enums for routing1,551MIT uri_to_host_portA lightweight, robust Rust utility to parse a URI and extract its host and port / 一个轻量、健壮的 Rust 工具，用于解析 URI 并提取其主机和端口1,431MulanPSL-2.0 uriboA command-line tool for executing predefined commands7,349MIT uricryptHierarchy-preserving deterministic URI encryption3,630MITCryptography