All 305,250 crates, alphabetically

sqpThe squishiest image format!2,383MIT OR Apache-2.0CompressionEncoding sqpack-rsSqPack archive reader for FFXIV52MITGame developmentParser implementations sqparseSquirrel3 and Squirrel_re parser.4,475MIT sqpnpA pure Rust implementation of the SQPnP perspective-n-point algorithm23,662MIT OR Apache-2.0Computer vision sqpnp_simpleSQPnp camera pose estimation6,932MIT OR Apache-2.0Data structuresMathematics sqridSquare coordinates and grid-like arrays, with zero dependencies, in a single file40,364MITData structures sqriptMake a typescript of a terminal session in the style of the `script` command1,512MIT sqriteAn opinionated featherweight rust wrapper around SQLite22,067BSD-3-ClauseAPI bindingsDatabase interfaces sqrl-protocolA rust implementation of the protocol for Secure Quick Reliable Login (SQRL)5,645GPL-3.0-only sqrt-rsStupidly Fast And LightWeight Crate To Calculate Square/Cubic Root In Different Ways1,609MIT sqrt_program_cpihelps to get sqrt price using index1,509MIT OR Apache-2.0 sqrtxSquare root calculation4,218MIT sqruffA high-speed SQL linter.87,875Apache-2.0 sqruff-cli-libA high-speed SQL linter.14,426Apache-2.0 sqruff-libA high-speed SQL linter.580,156Apache-2.0 sqruff-lib-coreCore library that underpins the sqruff library.533,847Apache-2.0 sqruff-lib-dialectsImplementation of sql dialects for sqruff.537,579Apache-2.0 sqruff-lspsqruff LSP server.66,764Apache-2.0 sqruff-sqlinferenceA high-speed SQL linter inference library.2,165Apache-2.0 sqrust-cliFast SQL linter written in Rust — the Ruff for SQL59MITCommand line utilitiesDevelopment tools sqrust-coreFast SQL linter written in Rust — the Ruff for SQL184MITCommand line utilitiesDevelopment tools sqrust-rulesFast SQL linter written in Rust — the Ruff for SQL124MITCommand line utilitiesDevelopment tools sqry-classpathJVM classpath analysis for sqry - bytecode parsing, build system resolution, and graph integration2,116MIT sqry-cliCLI for sqry - semantic code search1,603MIT sqry-coreCore library for sqry - semantic code search engine11,159MIT sqry-daemonsqry daemon (sqryd) — persistent code-graph service1,483MIT sqry-daemon-clientsqryd daemon client library: shim-mode (connect_shim + pump_stdio) and management (DaemonClient + JSON-RPC).2,126MIT sqry-daemon-protocolsqryd daemon wire types + framing codec (leaf crate, no sqry-* deps).2,265MIT sqry-dbSalsa-style incremental computation engine for sqry semantic code search2,131MIT sqry-lang-cC language plugin for sqry3,056MIT sqry-lang-cppC++ language plugin for sqry3,075MIT sqry-lang-csharpC# language plugin for sqry3,029MIT sqry-lang-cssCSS language plugin for sqry3,066MIT sqry-lang-dartDart language plugin for sqry3,074MIT sqry-lang-elixirElixir language plugin for sqry3,065MIT sqry-lang-goGo language plugin for sqry3,065MIT sqry-lang-groovyGroovy language plugin for sqry3,048MIT sqry-lang-haskellHaskell language plugin for sqry3,037MIT sqry-lang-htmlHTML language plugin for sqry3,011MIT sqry-lang-javaJava language plugin for sqry3,059MIT sqry-lang-javascriptJavaScript language plugin for sqry3,586MIT sqry-lang-jsonJSON config file language plugin for sqry2,958MIT sqry-lang-kotlinKotlin language plugin for sqry3,082MIT sqry-lang-luaLua language plugin for sqry3,046MIT sqry-lang-oracle-plsqlOracle PL/SQL language plugin for sqry - semantic search with Oracle-specific metadata3,063MIT sqry-lang-perlPerl language plugin for sqry3,040MIT sqry-lang-phpPHP language plugin for sqry3,120MIT sqry-lang-pulumiPulumi YAML/JSON language plugin for sqry2,342MIT sqry-lang-puppetPuppet language plugin for sqry2,379MIT sqry-lang-pythonpython language plugin for sqry3,090MIT sqry-lang-rR language plugin for sqry3,115MIT sqry-lang-rubyRuby language plugin for sqry3,054MIT sqry-lang-rustRust language plugin for sqry3,102MIT sqry-lang-salesforce-apexSalesforce Apex language plugin for sqry - semantic search with platform-specific metadata2,388MIT sqry-lang-sap-abapSAP ABAP language plugin for sqry - semantic search with SAP-specific metadata2,392MIT sqry-lang-scalaScala language plugin for sqry3,114MIT sqry-lang-servicenow-xanaduServiceNow (Xanadu) JavaScript plugin scaffold for sqry2,656MIT sqry-lang-servicenow-xmlServiceNow XML record extraction with JS delegation for sqry2,299MIT sqry-lang-shellShell script language plugin for sqry3,082MIT sqry-lang-sqlSQL language plugin for sqry3,104MIT sqry-lang-supportLanguage plugin support library for sqry5,730MIT sqry-lang-svelteSvelte language plugin for sqry3,112MIT sqry-lang-swiftSwift language plugin for sqry3,085MIT sqry-lang-terraformTerraform (HCL) language plugin for sqry2,426MIT sqry-lang-typescripttypescript language plugin for sqry3,657MIT sqry-lang-vueVue language plugin for sqry3,121MIT sqry-lang-zigZig language plugin for sqry3,129MIT sqry-lspLSP server for sqry semantic code search2,219MIT sqry-mcpMCP server for sqry semantic code search2,150MIT sqry-mcp-redactionClient-side helper library for redacting sensitive data from MCP responses2,483MITDevelopment toolsEncoding sqry-nlNatural language to sqry query translation layer2,072MIT sqry-plugin-registryPlugin registry for sqry language plugins2,842MIT sqry-rulesDeclarative rule layer for sqry semantic code search401MIT sqry-tree-sitter-supportTree-sitter integration helpers for sqry7,821MIT sqs-extended-clientAWS SQS extended client functionality from amazon-sqs-java-extended-client-lib966MIT OR Apache-2.0 sqs-lambdaSQS Service helper library83,747MIT sqs-replayA CLI to replay messages from an Amazon SQS dead-letter-queue, to it's (single) source queue.4,372MIT sqs-service-helperA library to facilitate SQS based consumer services9,418MIT OR Apache-2.0 sqs-statusList the status of AWS SQS queues676MIT OR Apache-2.0 sqs_listenerAn easy to use listener, to listen for messages from SQS queues2,880Apache-2.0 sqs_workerA simple listener for message in a queue using AWS-SDK for Rust7,910Apache-2.0 sqshA library for compression software in Rust with focus on scientific data2,701MITAlgorithmsCompression sqsh-rsA Rust wrapper around the libsqsh library6,291BSD-2-ClauseAPI bindings sqsh-sysLow-level bindings to the libsqsh library3,822BSD-2-ClauseExternal FFI bindingsNo standard library sqsh-testdataTool to generate testdata for data compression4,456MIT OR Apache-2.0 sqslistenSQSListen, a simple listener for AWS SQS queue. It allows you to set listener to your AWS SQS queue which will ask for the…3,220MITDevelopment tools sqsmvMoves messages from one sqs queue into another queue e.g. replay dlq to non-dlq1,607MITCommand line utilities sqsquatchPub/Sub API for Amazon SQS7,146MIT/Apache-2.0 sqstransferCLI tool that transfers Amazon SQS messages to another SQS.1,708MITCommand-line interfaceCommand line utilities sqtopInteractive terminal monitor for Slurm clusters101MITCommand line utilities squSimple command-line utility for converting quotation marks in plaintext files to "smart quotes".1,657MITCommand line utilitiesText editors squadflowSquadFlow - reserved package21MIT squadleaderA type system and rule engine to model small unit infantry combat.2,513Unlicense OR MITGame development squadreplayLibrary-first Rust parser and CLI for Squad UE5 replay files27MPL-2.0Command line utilitiesParser implementations squadrona cli tool for creating client-side api handlers from docs.1,536MIT OR Apache-2.0 squads-cli-rsreserved for future use1,482Apache-2.0 squads-mplSquads Multisig Program Library3,997AGPL-3.0-or-later squads-multisigAn SDK for building automated programs on Solana125,302MIT OR Apache-2.0 squads-multisig-cliCommand line interface to interact with the Squads v4 program.5,979MIT OR Apache-2.0 squads-multisig-programSquads Multisig Program V496,170non-standard squads-programSquads is an on-chain program that allows team to manage digital assets together, create proposals, and more.1,635LGPL-3.0 squads-rustfsmDefine state machines that can accept events and produce commands11,326non-standardData structures squads-rustfsm-procmacroProcmacro sub-crate of the `rustfsm` crate11,132non-standard squads-rustfsm-traitTrait sub-crate of the `rustfsm` crate11,068non-standard squads-temporal-clientClients for interacting with Temporal Clusters13,014non-standardDevelopment tools squads-temporal-sdkTemporal Rust SDK9,801non-standardDevelopment tools squads-temporal-sdk-coreLibrary for building new Temporal SDKs10,858non-standardDevelopment tools squads-temporal-sdk-core-apiInterface definitions for the Temporal Core SDK13,186non-standardDevelopment tools squads-temporal-sdk-core-protosProtobuf definitions for Temporal SDKs Core/Lang interface14,181non-standardDevelopment tools squads-v3-index-cliCLI for linking Solana program multisig authorities back to the Squads V3 program5,048MIT squads-v3-sdkAn SDK for building automated programs on Solana4,245AGPL-3.0-or-later squads-v4-clientA modern Rust client library for interacting with Squads v4 multisig protocol on Solana384MIT OR Apache-2.0API bindingsCryptography::Cryptocurrencies squads-v4-client-v3A modern Rust client library for interacting with Squads v4 multisig protocol on Solana27MIT OR Apache-2.0 squalea tiny image scaling utility6,255MITCommand line utilities squall-configAgentic configuration920MITAsynchronousConcurrency squall-errorAgentic error2,024MITAsynchronousConcurrency squall-routerHTTP router with path parameters extraction9,568MIT OR Apache-2.0 squall_dot_io_respA RESP parser implementation, written with edge performance in mind.5,009MIT squalo🦈 Minimal, elegant, fast, async Kraken exchange WebSockets API client | Written in Rust9,785MITAPI bindingsWeb programming::WebSocket squamThis is a reserved placeholder package to mitigate dependency confusion risks.616MIT squam-cliThis is a reserved placeholder package to mitigate dependency confusion risks.642MIT squam-configThis is a reserved placeholder package to mitigate dependency confusion risks.627MIT squam-deriveThis is a reserved placeholder package to mitigate dependency confusion risks.621MIT squam-macrosThis is a reserved placeholder package to mitigate dependency confusion risks.623MIT squam-migration-macrosThis is a reserved placeholder package to mitigate dependency confusion risks.657MIT squam-migrationsThis is a reserved placeholder package to mitigate dependency confusion risks.626MIT squam-typedThis is a reserved placeholder package to mitigate dependency confusion risks.624MIT squareNative UI toolkit for creating cross-platform graphical user interfaces in Rust.1,903MIT/Apache-2.0 square-api-clientRust wrapper for the Square web API12,527Apache-2.0 square-oxAn easy, idiomatic, and flexible way of interacting with the Square API, following Rust conventions.5,737non-standardAPI bindingsAsynchronous square-ox-deriveA macro crate for deriving the builders used by the square-ox crate.2,253MIT OR Apache-2.0 square-rsA convenient wrapper for the Square API, providing online payment processing, and other financial services.2,841non-standardAPI bindingsAsynchronous square-rustA Rust client library for the Square API.3,899MIT/Apache-2.0 square_calculatorSquare Calculator2,930MIT/Apache-2.0 square_cubeLearning tutorial for medium.com1,527MIT OR Apache-2.0 squarecloudAsync Rust client for the SquareCloud API92MITAPI bindingsWeb programming::HTTP client squaredbA new database that I decided to make.5,464MIT squaredb_encSquaredb - Enhance your DB with extendability and performance.1,495GPL-3.0-or-later squaredb_fmSquaredb - Enhance your DB with extendability and performance.1,473GPL-3.0-or-later squarepegA library for partitioning the Earth's geography324MIT OR Apache-2.0Encoding squaresA Counter-RNG faster than Philox1,933MIT OR Apache-2.0AlgorithmsEmbedded development squares-rndSimple and fast counter based non-crypto random generator27,407BSL-1.0AlgorithmsNo standard library::No dynamic allocation squares-rngA Rust implementation of Squares RNG for game development.4,156MIT OR Apache-2.0 squarespace_commerceA package that permits interfacing with squarespace commerce APIs1,079MIT OR Apache-2.0API bindingsAsynchronous squareupRust SDK for the Square Developer API56,732MIT squarizeA simple CLI tool to squarize images by padding them with transparent pixels.1,310MIT squarkVirtual DOM implemention and application definition inspired from HyperApp24,644WTFPLGUIWeb programming squark-macrosMacros like JSX to help building Squark application18,164WTFPLGUIWeb programming squark-stdwebSquark runtime implemiontion for web browser with using stdweb9,317WTFPLGUIWeb programming squark-webSquark runtime implemiontion for web browser with using wasm-bindgen11,884WTFPLGUIWebAssembly squashMore space efficient encoding of owned heap-allocated slices1,657Apache-2.0/MITData structuresMemory management squash-syssys-level bindings to the squash compression library38,818MIT/Apache-2.0 squashfsA pure rust implement of squashfs library.2,256MIT squashfs-asyncParsing and reading of SquashFS archives, on top of any implementor of the tokio::io::AsyncRead and tokio::io::AsyncSeek traits.1,542MIT squashfs-ngHigh-level Rust wrapper for squashfs-tools-ng4,929Apache-2.0CompressionFilesystem squashfs_readerFully featured rust reader for the squashfs archive format591MIT OR Apache-2.0CompressionFilesystem squashfuse-rsFUSE implementation of Squashfs written in Rust.4,651MIT squashrs-toolsTools for working with squashfs filesystems, a highly compressed, read-only format.273GPL-2.0-or-later squattReserved crate.1,192MIT squatterSquatting must be stopped1,434MIT squatternautMachine-readable database of squatted crates on crates.io2,305MIT OR Apache-2.0 squattingSquatting must be stopped1,439MIT squawkLinter for Postgresql focused on database migrations.17,213Apache-2.0 OR MITCommand line utilitiesDevelopment tools squawk-fmtLinter for Postgres migrations & SQL394Apache-2.0 OR MIT squawk-githubPostgres SQL linter Github APIs used in Squawk10,644Apache-2.0 OR MIT squawk-ideLinter for Postgres migrations & SQL4,941Apache-2.0 OR MIT squawk-lexerLinter for Postgres migrations & SQL9,527Apache-2.0 OR MIT squawk-linterLinter for Postgres migrations & SQL12,317Apache-2.0 OR MIT squawk-parserLinter for Postgres migrations & SQL15,215Apache-2.0 OR MIT squawk-serverLSP server for Squawk6,492Apache-2.0 OR MIT squawk-syntaxLinter for Postgres migrations & SQL9,025Apache-2.0 OR MIT squawk-threadThread pool and related utilities for Squawk2,044Apache-2.0 OR MIT squawk-wasmLinter for Postgres migrations & SQL1,323Apache-2.0 OR MIT squawkboxDLC contract communication over nostr.2,595MIT squeakLibrary providing types allowing execution of callbacks in response to values being broadcast or mutated.3,596MIT OR Apache-2.0Data structuresNo standard library squealA SQL query builder library for Rust10,529LGPL-3.0-or-laterDatabase interfaces squealerA Terminal UI database client1,263MIT squeegeeWeb scraping in rust1,670MIT squeezHook-based token compressor for 5 AI CLI hosts (Claude Code, Copilot CLI, OpenCode, Gemini CLI, Codex CLI). Up to 95% bash…1,313Apache-2.0Command line utilitiesDevelopment tools squeezeRust compression library1,654MIT OR Apache-2.0 squeezerUniversal data compression library1,457LGPL-3.0-onlyCompression squeueSQueue is a sized queue.5,223MIT squfofShanks's square forms factorization8,495AGPL-3.0-or-laterNo standard library squibEmbeddable facade for Squib microVM runtimes405Apache-2.0 squib-apiFirecracker-compatible HTTP API server for squib (axum on a Unix domain socket)423Apache-2.0VirtualizationWeb programming::HTTP server squib-archaarch64 layout, ESR_EL2 decoder, PSCI dispatch, sysreg subset, and IntId newtype for squib634Apache-2.0No standard libraryVirtualization squib-busMMIO address-space router for squib's microvm505Apache-2.0Virtualization squib-climacOS-native microVM monitor with a Firecracker-compatible API19Apache-2.0 squib-corePortable trait surface and core types for the squib microVM monitor669Apache-2.0Virtualization squib-fdtFlattened device tree builder for squib's aarch64 microvm441Apache-2.0Virtualization squib-gicThin GICv3 wrapper over Apple Hypervisor.framework's hv_gic_* APIs573Apache-2.0Operating systems::macOS APIsVirtualization squib-hostmacOS host-side primitives for squib (Mach-exception-port pager backing postcopy / lazy-restore)20Apache-2.0Virtualization squib-hvApple Hypervisor.framework binding for squib (the unsafe boundary)441Apache-2.0Operating systems::macOS APIsVirtualization squib-jailDrop-in Darwin shim for the Firecracker `jailer` binary19Apache-2.0 squib-legacyLegacy aarch64 platform devices for squib (PL011 UART)440Apache-2.0Virtualization squib-loaderaarch64 kernel image loader (PE / Image / Image.gz / Image.zst) for squib440Apache-2.0Virtualization squib-mmdsMMDS instance metadata service: data store, V2 token store, dumbo TCP/IP, MMDS interceptor488Apache-2.0Virtualization squib-netHost-side networking for squib: vmnet (shared/host/bridged) + gvproxy userspace441Apache-2.0Virtualization squib-snapshotSquib snapshot subsystem: bitcode state file, sparse memory file, dirty-page tracking470Apache-2.0Virtualization squib-virtiovirtio-MMIO transport and per-device drivers for squib474Apache-2.0Virtualization