All 305,250 crates, alphabetically

scoped_signalProvides a scoped interface to signal handlers that are only active for the lifetime of a given closure5,244MIT OR Apache-2.0 scoped_spawnFull structured concurrency for asynchronous programming.7,248MITAsynchronousConcurrency scoped_stackA scoped stack data structure14,792MITData structures scoped_stateful_threadpoolA library for scoped and cached threadpools that keep a state.1,547MIT scoped_staticSafe promotion of lifetimes to static1,613Apache-2.0 scoped_static_macroSafe promotion of lifetimes to static278Apache-2.0 scoped_static_storageThis crate provides a ScopedStatic which allows you to store and use a &mut T variable across threads and contexts safely very…553MIT OR Apache-2.0 scoped_tasks_prototypeA quick-and-dirty attempt to get scoped tasks in Rust.1,531MITAsynchronousConcurrency scoped_thread_localHighly flexible Scoped thread local with HKT builtin44,479MIT OR Apache-2.0 scoped_threadpoolA library for scoped and cached threadpools.17,927,727MIT scoped_threadsLightweight, safe and idiomatic scoped threads1,280MIT OR Apache-2.0ConcurrencyRust patterns scopedb-clientScopeDB client for Rust1,387Apache-2.0Database interfaces scopefnScope functions for Rust5,316MITNo standard libraryRust patterns scopefuncA trait defining kotlin-like scope functions.4,345non-standard scopegraphsA well-documented port of scopegraphs to Rust23,186MIT OR Apache-2.0 scopegraphs-libA port of [scopegraphs](https://pl.ewi.tudelft.nl/research/projects/scope-graphs/) to Rust3,775MIT OR Apache-2.0 scopegraphs-macrosA well-documented port of scopegraphs to Rust12,721MIT OR Apache-2.0 scopegraphs-prust-libfork of [prust](https://github.com/victorcolombo) for [scopegraphs](http://docs.rs/scopegraphs)4,431MIT scopegraphs-regular-expressionsA well-documented port of scopegraphs to Rust14,855MIT OR Apache-2.0 scopegraphs-render-docsDerived from Aquamarine, a mermaid.js integration for rustdoc, renders scopegraphs by executing doctests to generate mermaid19,163MITDevelopment tools::Build UtilsVisualization scopeguardA RAII scope guard that will run a given closure when it goes out of scope, even if the code between panics (assuming unwinding…818,612,123MIT OR Apache-2.0No standard libraryRust patterns scopeguard-liteA lightweight way to defer execution of a block to the end of the scope, and to run code during an unwind.396MIT OR Apache-2.0No standard libraryNo standard library::No dynamic allocation scopelintAn opinionated formatting and linting tool for foundry projects36,604MITDevelopment tools scopeqlA command-line interface for ScopeDB149Apache-2.0Database interfaces scopeql-parserA parser for ScopeQL queries and commands.1,175Apache-2.0 scoperA TypeScript code analyzer using the OXC parser1,656MITDevelopment toolsDevelopment tools::Testing scopes-macrosMacros for scopes-rs150MIT OR Apache-2.0 scopes-rsStrongly typed scoped authorization library45MIT OR Apache-2.0 scopetimelog runtime of arbitrary scope86,088MITDevelopment tools::Profiling scopinatorTelescope control library with pluggable backends179GPL-3.0-or-later scopinator-alpacaASCOM Alpaca backend for scopinator151GPL-3.0-or-later scopinator-cliCLI for the scopinator telescope control library116GPL-3.0-or-later scopinator-indiINDI protocol backend for scopinator154GPL-3.0-or-later scopinator-seestarSeestar smart telescope protocol implementation255GPL-3.0-or-later scopinator-typesShared types for the scopinator telescope control library404GPL-3.0-or-later scorchA straightforward and customizable neural network crate, built for machine learning tasks.1,384MIT scorchedA simple logging library for scorching all those pesky bugs.26,067Apache-2.0 scoreDiscrete event simulation library5,063GPL-3.0ScienceSimulation score-setA Rust library for building static weighted scoring operator sets194MIT OR Apache-2.0AlgorithmsNo standard library score-tabLibrary to read Guitar Pro and MuseScore files379MIT score-trackerScore Tracker is an application for tracking player scores in card and board games.2,674MIT scoreboardsome vanity (and sometimes useful) crate metrics1,442MIT scoreboard_dbLibrary that provides a database connection for the scoreboard for an in house code challenge server2,770MIT scoreboard_world_cupSimple score board for following the results of the currently played games in a World Cup3,176MIT scored_setA scored sorted set data structure for Rust3,880Apache-2.0 scoreledgerA CLI tool that helps you analyze data from your report card.134MITCommand line utilities scorex_crypto_avltreeImplementation of cryptographically authenticated dictionary based on AVL tree29,317MIT OR Apache-2.0 scoriaBeautiful TUI components for building terminal interfaces 🎇337MIT OR Apache-2.0Command-line interfaceGUI scorpioA scheduler independent asynchronous context.587Apache-2.0 scorpiofsFUSE-based virtual filesystem with Antares overlay for monorepo builds1,812MIT OR Apache-2.0Development tools::Build UtilsFilesystem scorpionCommand Line Interface for the scorpion.io project.6,340non-standardCommand line utilities scorpiusScorpius is a data structures and algorithms library.4,998MIT scorsScores for binary classifier evaluation5,248MIT scostA simple command line tool to manage objects with same names across multiple buckets (for Tencent Cloud COS only).763MIT scotchIdiomatic wrapper for Scotch, the graph partitioner, graph clusterer and sparse matrix orderer6,813MIT OR Apache-2.0API bindingsMathematics scotch-guestScotch guest api for creating WASM plugins.2,160MIT scotch-guest-macrosScotch guest macros.2,713MIT scotch-hostScotch host api for creating WASM plugins.2,192MIT scotch-host-macrosScotch host macros.2,788MIT scotch-sysRaw FFI to Scotch, the graph partitioner, graph clusterer and sparse matrix orderer8,859MIT OR Apache-2.0External FFI bindingsMathematics scotextCLI app to score input according to how likely it is it contains english text7,880MIT scottdbAn semi-experimental write optimized key-value database1,648non-standard scottfeichterMy first crate1,369MIT OR Apache-2.0 scottish_namesLibrary for generating random names of people based on frequency of occurrence of birth-names in Scotland8,965MIT scottqueueProvides multi-producer, multi-consumer queues based on the ones in the paper by Michael and Scott.3,163 scottyA chillingly fast dir switcher using fuzzy search.8,281MPL-2.0Command line utilities scoundrelAn engine for working with ASCII roguelikes.19,846MIT OR Apache-2.0 scoundrel-cardsScoundrel (playing card roguelike) in Rust752MIT scoundrel-macroAn engine for working with ASCII roguelikes. This is just the macro package, use `scoundrel` instead!2,420MIT OR Apache-2.0 scoundrel-tuiA terminal-based implementation of the solo card game Scoundrel24MITCommand line utilitiesGames scourA fuzzy search algorithm1,524Apache-2.0 OR BSL-1.0 OR MITAlgorithmsFilesystem scour-secretsDeterministic one-way data sanitization engine60Apache-2.0Command line utilitiesText processing scoutFriendly fuzzy finder for the command line28,476MIT scout-audit-clippy-configClippy config republish to be used by scout-audit-clippy-utils6,645MIT OR Apache-2.0 scout-audit-clippy-utilsClippy utils republish to be used by scout-audit-internal9,982MIT OR Apache-2.0 scout-audit-clippy-utils-sorobanFor internal usage by cargo-scout-audit.2,960MIT scout-audit-dylint-lintingUtilities for writing Dylint libraries8,318MIT OR Apache-2.0 scout-audit-internalScout is an extensible open-source tool intended to assist soroban smart contract developers and auditors detect common security…6,849MITCommand line utilitiesDevelopment tools scout-audit-internal-sorobanScout is an extensible open-source tool intended to assist soroban smart contract developers and auditors detect common security…3,016MITCommand line utilitiesDevelopment tools scout-cliCorpus hydration at retina speed — fast, cheap, hallucination-firewalled orientation for AI agents in any directory of code or…17Apache-2.0Command line utilitiesDevelopment tools scout-interpreterA web crawling programming language7,855MIT OR Apache-2.0 scout-jsonJSON representation of ScoutLang AST4,083MIT OR Apache-2.0 scout-lexerA web crawling programming language8,718MIT OR Apache-2.0 scout-parserA web crawling programming language8,473MIT OR Apache-2.0 scout-seekerscout-seeker is a simple Rust CLI to scan a directory to list files, recursively.1,411MIT scout-utilsMacro utilities for the Scout project.8,428MITDevelopment tools::Procedural macro helpers scout-workerA worker framework for ScoutLang2,231MIT OR Apache-2.0 scout_gameRust implementation of the card game Scout, originally designed by Kei Kanjino and published by Oink Games inc.2,620MIT scout_rsA Rust client for the synchornizing state with the Scout database10,475Apache-2.0API bindingsWeb programming::HTTP client scouterRust Scouter logic22,889MIT scouter-authRust Scouter authentication logic1,269MIT scouter-clientClient and server contract for scouter8,265MIT scouter-dataframeDataFusion client for long-term storage of scouter data6,304MIT scouter-dispatchRust Scouter logic10,662MIT scouter-driftDrift logic for Scouter10,154MIT scouter-errorError logic for Scouter1,302MIT scouter-evaluateLLM Evaluation logic for Scouter3,878MIT scouter-eventsLogic for setting up and running Scouter event-driven consumers and producers9,773MIT scouter-httpHelper functionality for a common HTTP client2,628MIT scouter-macroMacro utilities for scouter3,426MIT scouter-observabilityScouter observability logic9,646MIT scouter-profileScouter profile logic9,849MIT scouter-semverScouter semver logic7,827MIT scouter-serverScouter server for model monitoring3,365MIT scouter-settingsClient and server contract for scouter11,894MIT scouter-sqlSql library to use with scouter-server5,871MIT scouter-stateHolds global state for managing python and rust interop5,754MIT scouter-tonicScouter gRPC/Tonic definitions and generated code2,540MIT scouter-tracingHelper crate for tracing instrumentation3,582MIT scouter-typesClient and server contract for scouter13,018MIT scoutfs-syssys pkg for Versity ScoutFS headers1,609MIT scoutlangA web crawling programming language8,132MIT OR Apache-2.0 scoutquest-rustRust SDK for ScoutQuest Service Discovery - Universal service discovery for microservices architectures1,752MITAsynchronousNetwork programming scoutschedDeterministic FRC scouting schedule generator: optimized per-team expert assignments, breaks, pit-scouting, and quant/qual…17MITCommand line utilities scouttyProbe your terminal's capabilities42MITCommand line utilitiesOperating systems::Unix APIs scoutyLog parsing, filtering, and analysis library151Apache-2.0 scouty-tuiTerminal UI for scouty log viewer56Apache-2.0 scowObject storage CLI for S3, R2, GCS, and MinIO. Part of the rustpunk portfolio.16MIT OR Apache-2.0Command line utilities scpA Rust library that parses strings of text as commands, subcommands, parameters and options.20,363AMLCommand-line interface scp-coreSCP protocol + runtime — unified API surface339Apache-2.0 scp-event-logVerifiable Merkle event log for SCP (Shared Context Protocol)415Apache-2.0CryptographyData structures scp-identityDecentralized identity (DID) management for SCP (Shared Context Protocol)447Apache-2.0AuthenticationCryptography scp-mcpMCP (Model Context Protocol) adapter for SCP — JSON-RPC 2.0 types and context namespace mapping37Apache-2.0Network programmingWeb programming scp-mediaReal-time media transport types for SCP (Shared Context Protocol)35Apache-2.0CryptographyMultimedia scp-nodeApplication node composing relay, identity, and HTTP server for SCP41AGPL-3.0-onlyCommand line utilitiesNetwork programming scp-platformPlatform abstraction traits for SCP (Shared Context Protocol)496Apache-2.0CryptographyOperating systems scp-primitivesShared low-level primitives for SCP (Shared Context Protocol)476Apache-2.0CryptographyData structures scp-protocolPure sync protocol types and logic for SCP110Apache-2.0 scp-relayStandalone SCP native relay server binary38Apache-2.0Command line utilitiesNetwork programming scp-runtimeCore protocol implementation for SCP (Shared Context Protocol)97Apache-2.0CryptographyNetwork programming scp-transportTransport abstraction layer for SCP (Shared Context Protocol)167Apache-2.0AsynchronousNetwork programming scp03GlobalPlatform Secure Channel Protocol 03 implementation targeting YubiHSM2 devices1,516MIT/Apache-2.0Cryptography scp2p-cliInteractive command-line client for the SCP2P peer-to-peer network105MPL-2.0Command line utilitiesNetwork programming scp2p-coreCore protocol library for the SCP2P peer-to-peer content-sharing network253MPL-2.0CryptographyNetwork programming scp2p-relayStandalone relay node for the SCP2P network — easy to deploy on any OS105MPL-2.0Command line utilitiesNetwork programming scp_username_moduleCross-language module for generating Wikidot-like username modules1,716AGPL-3.0 scpcb_redux_mapperA map generation for SCPCB Redux2,666MIT OR Apache-2.0 scpiSCPI/IEEE488.2 parser library34,511MIT OR Apache-2.0Command-line interfaceEmbedded development scpi-clientHelper library for serializing and deserializing SCPI messages.1,385MIT OR Apache-2.0 scpi-contribSCPI/IEEE488.2 contrib library13,430MIT OR Apache-2.0Command-line interfaceEmbedded development scpi_deriveSCPI/IEEE488.2 parser support library31,514MIT OR Apache-2.0Command-line interfaceEmbedded development scpifyRust library for sending and receiving SCPI (Standard Commands for Programmable Instruments) messages over TCP and HiSLIP…265MITEmbedded developmentHardware support scprManage your local binaries with ease.36MIT OR Apache-2.0Command line utilitiesDevelopment tools scpsl-apiA SCP: Secret Laboratory API wrapper7,470MIT OR Apache-2.0API bindingsAsynchronous scptyApp that creates the script with shebang.6,071GPL-3.0-or-laterCommand line utilitiesFilesystem scqlSCQL1,450Apache-2.0 scrMost simple site parser and file loader11,752MIT scr-axum-cranker-routerA Rust port of mu-cranker-router7,887Apache-2.0Network programming scr-runtime-compressionRuntime integration adapter for semantic-memory compression layer — CompressedSearchPath and ExactFallbackAdapter delegates to…100MITCompressionDatabase interfaces scra-mirach-modelSCRA: Mirach - Model1,469Apache-2.0 scra-mirach-model-r1SCRA: Mirach - Model parameters (REL 1)1,523Apache-2.0 scramA SCRAM provider library.246,402MIT scram-2A SCRAM provider library.42,107MIT scram-rsSalted Challenge Response Authentication Mechanism (SCRAM) SASL mechanism, a library which implements SCRAM logic for Rust and C…44,941MPL-2.0 OR MIT OR EUPL-1.2AuthenticationNetwork programming scram-tmpA SCRAM provider library.1,513MIT scrambleScramble word game. Boggle-like word game hosted at http://scramblelovers.com. Multi-user, chat-enabled web game online.1,893MIT scramble-genLibrary with accompanying cli utility that generates practice scrambles for use in a future cube timer.1,817non-standard scramblerA simple command line tool to scramble letters2,713MITCommand line utilitiesText processing scramblrObfuscation for Ordinary6,905AGPL-3.0-onlyCryptography scrannotateScreenshot annotation tool: capture a screen, select, annotate in place, copy or save55Apache-2.0GUIMultimedia::Images scrapScreen capture made easy.140,272MIT scrapbookDocumentation library using hierarchically partial templates2,716MIT scrape-cliCommand-line HTML extraction tool powered by scrape-rs308MIT OR Apache-2.0 scrape-coreHigh-performance HTML parsing library core17,277MIT OR Apache-2.0Parsing toolsWeb programming scrape-meprogramatik29's documentation tests.2,721MIT scrape_bloggerA CLI to scrape content from a Blogger Site1,737MIT scrapebadgerAsync Rust SDK and CLI for the ScrapeBadger web-scraping API (Amazon, eBay, Google, Reddit, TikTok, Twitter/X, Vinted, Web…37MITAPI bindingsCommand line utilities scrapelectInterpreter for scrapelect, a CSS-inspired web scraping DSL5,210Apache-2.0 OR MIT scrapelect-filter-proc-macroproc-macros for making scrapelect Filters5,567Apache-2.0 OR MIT scraperHTML parsing and querying with CSS selectors23,633,692ISCText processingWeb programming scraper-macrosMacros implementation of #[derive(Scraper)]4,580MIT scraper-mainThe core framework xpath parsing5,139MIT scraper-trailScraping framework and tools138GPL-3.0-only scraper_forkyHTML parsing and querying with CSS selectors3,160ISC scraper_queryErgonomic Query for HTML with Scraper3,481non-standard scrapersContrail scrapers and normalization library for local AI coding session logs662MIT scrapeyA basic library for tokenising HTML and generating a node tree with some basic utility functions423MIT OR Apache-2.0 scrapfly-sdkAsync Rust client for the Scrapfly web scraping, screenshot, extraction and crawler APIs120BSD-2-ClauseAPI bindingsWeb programming scrapiA cli tool for scraping websites.2,075MITCommand line utilities scrapileA somewhat fully-fleged rust-like programming language that, surprisingly, compiles to scratch2,352GPL-3.0-onlyParser implementations scraping_japanese_lottery_siteLibrary to get Japanese Lottery Result with Numbers3, Numbers4 and Loto64,920MIT scrapingapiThe official rust client of ScrapingApi, website scraping API.1,443MIT/Apache-2.0 scraplingFast, adaptive web scraping toolkit for Rust274MIT scrapling-browserBrowser automation with anti-detection for scrapling102MIT scrapling-cliCommand-line interface for scrapling53MIT scrapling-fetchHTTP fetcher with TLS impersonation for scrapling243MIT scrapling-mcpMCP (Model Context Protocol) server for scrapling49MIT scrapling-spiderConcurrent web crawler framework for scrapling56MIT scrapmanA high-level declarative web scraping framework2,741MIT scrapmetalScrap Your Rust Boilerplate2,004Apache-2.0/MIT scrapmetal-deriveCustom derive support for scrapmetal.2,893Apache-2.0/MIT scrapped-websWeb scrapping crate to webscrap different makeup websites and retrieve their products.1,896non-standard scrappyscrappy is the best web framework for Rust6,908MITAsynchronousNetwork programming scrappy-actorActor framework for Rust3,257MITAsynchronousNetwork programming scrappy-clientscrappy http client.7,294MITAsynchronousNetwork programming scrappy-codecUtilities for encoding and decoding frames11,914MITAsynchronousNetwork programming scrappy-connectscrappy connect - tcp connector service9,479MITAsynchronousNetwork programming scrappy-corsCross-origin resource sharing (CORS) for scrappy applications.1,663MIT scrappy-derivescrappy derive3,867MIT scrappy-filesStatic files support for scrappy web.1,681MITAsynchronousWeb programming::HTTP server