BROWSE A-Z
All 305,250 crates, alphabetically
Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.
situPlaceholder for situ1,562MIT OR Apache-2.0
situ_derivePlaceholder for situ_derive1,544MIT OR Apache-2.0
situwaitionRun a closure continuously, until is succeeds or times out.9,408MIT
sityInternational System of Units (SI) Typing7,066LGPL-3.0-only
sitzungQuickly open tmux sessions2,663MIT
siuSI Units1,786Apache-2.0
siumaiA unified LLM interface library for Rust7,996MIT OR Apache-2.0
siumai-bridgeProtocol bridge helpers for siumai gateway and facade integrations293MIT OR Apache-2.0
siumai-coreProvider-agnostic core for siumai2,070MIT OR Apache-2.0
siumai-extrasOptional utilities for siumai: schema validation, telemetry, and server adapters388MIT OR Apache-2.0
siumai-protocol-anthropicAnthropic Messages protocol standard mapping for siumai996MIT OR Apache-2.0
siumai-protocol-geminiGoogle Gemini protocol standard (mapping + streaming) for siumai802MIT OR Apache-2.0
siumai-protocol-openaiOpenAI(-like) protocol standard mapping for siumai1,289MIT OR Apache-2.0
siumai-provider-amazon-bedrockAmazon Bedrock provider implementation for siumai524MIT OR Apache-2.0
siumai-provider-anthropicAnthropic provider implementation for siumai639MIT OR Apache-2.0
siumai-provider-anthropic-compatibleAnthropic Messages protocol standard for siumai (legacy crate name: *-compatible)133MIT OR Apache-2.0
siumai-provider-azureAzure OpenAI provider implementation for siumai520MIT OR Apache-2.0
siumai-provider-cohereCohere provider implementation for siumai (chat, embedding, rerank)526MIT OR Apache-2.0
siumai-provider-deepgramDeepgram provider implementation for siumai (speech and transcription)234MIT OR Apache-2.0
siumai-provider-deepseekDeepSeek provider implementation for siumai (OpenAI-like protocol)490MIT OR Apache-2.0
siumai-provider-elevenlabsElevenLabs provider implementation for siumai (speech and transcription)232MIT OR Apache-2.0
siumai-provider-gatewayVercel AI Gateway provider implementation for siumai231MIT OR Apache-2.0
siumai-provider-geminiGoogle Gemini provider implementation for siumai595MIT OR Apache-2.0
siumai-provider-google-vertexGoogle Vertex AI provider implementation for siumai523MIT OR Apache-2.0
siumai-provider-groqGroq provider implementation for siumai (OpenAI-like protocol)583MIT OR Apache-2.0
siumai-provider-minimaxiMiniMaxi provider implementation for siumai587MIT OR Apache-2.0
siumai-provider-ollamaOllama provider implementation and protocol standard for siumai577MIT OR Apache-2.0
siumai-provider-openaiOpenAI provider implementation for siumai (plus OpenAI-compatible vendor presets)703MIT OR Apache-2.0
siumai-provider-openai-compatibleOpenAI-like protocol standard for siumai (legacy crate name: *-compatible)1,031MIT OR Apache-2.0
siumai-provider-togetheraiTogetherAI provider implementation for siumai (reranking)524MIT OR Apache-2.0
siumai-provider-utilsProvider-facing utility seams for siumai589MIT OR Apache-2.0
siumai-provider-xaixAI provider implementation for siumai (OpenAI-like protocol)582MIT OR Apache-2.0
siumai-registryRegistry and factories for siumai614MIT OR Apache-2.0
siumai-specProvider-agnostic specs and data types for siumai1,433MIT OR Apache-2.0
sivGeneric implementation of Synthetic Initialization Vector mode1,977MIT/Apache-2.0
sivasbusSivas live public bus data scraper231MIT OR Apache-2.0
sivchainAdvanced symmetric encryption using the AES-SIV (RFC 5297) and CHAIN constructions2,117MIT
sivtrTerminal output workspace for the AI era - capture, browse, search, select, and reuse terminal output and AI coding sessions220Apache-2.0
sivtr-coreCore library for sivtr terminal output and AI coding session processing across local agent providers278Apache-2.0
siwaSign In With Apple JWT validator library4,593MIT
siwa-asyncSign In With Apple Validation in Async Rust4,037MIT
siweRust implementation of EIP-4361: Sign In With Ethereum645,755MIT OR Apache-2.0
siwe-recapEIP-5573: Mechanism on top of Sign-In with Ethereum for informed consent to delegate capabilities with an extensible scope…99,580Apache-2.0 OR MIT
siwiA minimal Rust web application framework1,429Apache-2.0
siwi-downloadDownloader with a pure http implementation support breakpoint continuations11,294MIT
siwsLightweight Sign in With Solana library adhering to the Solana Wallet Standard.8,864MIT
siws-recapMechanism on top of Sign-In with Solana for informed consent to delegate capabilities with an extensible scope mechanism.3,726Apache-2.0 OR MIT
siwxSign In with X287MIT OR Apache-2.0
siwx-cliCAIP-122 Sign-In with X CLI tool104MIT OR Apache-2.0
siwx-evmSign In with X155MIT OR Apache-2.0
siwx-rsMulti-chain Sign-In with X (SIWX) library supporting Ethereum and Solana470Apache-2.0
siwx-svmSign In with X155MIT OR Apache-2.0
sixIntend to learn7,842MIT
six_sevenSix Seven Cryptography20MIT
six_viewerA short program to color output based on an output.txt file.2,793WTFPL
sixarm_assertAssert macros for Rust tests. By SixArm.com.4,428MIT OR Apache-2.0 OR GPL-2.0-only
sixarm_collectionsCollections for HashMapToSet and BTreeMapToSet as trait extensions. By SixArm.com.3,740MIT OR Apache-2.0 OR GPL-2.0-only
sixbitSmall packed strings9,509MIT OR Apache-2.0
sixelA safe Rust wrapper for libsixel16,662MIT
sixel-bytesEncode an image with sixel-sys/libsixel8,893MIT
sixel-imageAn interface for querying, manipulating and serializing/deserializing Sixel data250,462MIT
sixel-rsA safe Rust wrapper for libsixel (active fork)58,172MIT
sixel-sysFFI bindings to libsixel81,096MIT
sixel-sys-staticFFI bindings to libsixel, static linkage3,899MIT
sixel-tokenizerA tokenizer for serialized Sixel bytes250,027MIT
sixfiveohtwoA 6502 emulator (WIP)1,532MIT
sixpenceAn accounting tool for hackers2,771BSD-3-Clause
sixrsA fast image to Sixel encoder for terminals86Apache-2.0
sixsevenhello liushiqi1,197MIT
sixteenreserved name for WIP project25GPL-3.0-only
sixthThe Sixth Programming language3,870GPL-2.0-or-later WITH Bison-exception-2.2
sixth_databaseIn memory serializing to disk Database. Mimics FourthDatabase(C#) and FifthDatabase(C++), SixthDatabase is for Rust using Serde.16,223LGPL-3.0-or-later
SixthDatabaseIn memory serializing to disk Database. Mimics FourthDatabase(C#) and FifthDatabase(C++), SixthDatabase is for Rust using Serde.7,206LGPL-3.0-or-later
sixtyfiveAn interpreter for the Sixtyfive programming language, designed for teaching computer science to moths.30WTFPL
sixtyfpsSixtyFPS Rust API39,054(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-buildHelper for SixtyFPS build script32,512(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-commonHelper crate for sharing code & data structures between sixtyfps-corelib and sixtyfps-compiler5,899(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-compilerlibInternal SixtyFPS compiler library40,438(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-corelibInternal SixtyFPS runtime library.40,868(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-corelib-macrosHelper macro for sixtyfps-corelib40,997(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-interpreterInterpreter library for SixtyFPS19,772(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-lspSixtyFPS LSP server10,587(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-macrosMacro helper for sixtyfps crate37,646(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-rendering-backend-defaultHelper crate to pick the default rendering backend for SixtyFPS39,799(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-rendering-backend-glOpenGL rendering backend for SixtyFPS40,711(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-rendering-backend-qtQt rendering backend for SixtyFPS39,379(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixtyfps-viewerViewer binary for SixtyFPS9,438(GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
sixuExperimental Visual Novel Scripting Language2,084MPL-2.0
siyi-protocolSIYI Gimbal and Camera SDK Protocol194MIT
siyoCross-platform system interface for hardware IO.1,910MIT / BSL-1.0
sizA versatile, cross-platform command line file size reporting executable with default recursive file system traversal.8,255Apache-2.0
sizeA crate for expressing, formatting, and interacting with file sizes3,897,341MIT
size-convertConversions to and from Rust's machine-dependent integer types, usize and isize80MIT
size-displayDisplay file sizes in human-readable form15,331MIT
size-limitrange limit checker1,647MIT
size-ofA crate for measuring the total memory usage of an object730,598MIT OR Apache-2.0
size-of-deriveAutomatically derives the SizeOf trait591,613MIT OR Apache-2.0
size-of-no-paddingA procedural macro to calculate the size of a type without padding.1,756MIT OR Apache-2.0
size-of-no-padding-deriveA procedural macro to calculate the size of a type without padding.1,148MIT OR Apache-2.0
size-of-traitdetermine the size of a future or trait impl at compile time6,515BSD-3-Clause
size-rsTells the size of some structures available on the system1,696GPL-3.0-or-later
size-serSeralizer for serde to compute a lower bound for the size of any type that is Serialize.1,462Apache-2.0
size-traitTraits for restricting the size of type parameters.1,647non-standard
size_fmtThis library formats sizes in a human readable format3,476MIT OR Apache-2.0
size_formatAllows for easier formatting of sizes.1,647,420MIT OR Apache-2.0
size_hintA very simple library to provide a size_hint for an iterator which does not provide it's own6,087MIT
size_hinterIterator adaptors allowing overriding or specifying size_hint.709MIT OR Apache-2.0
size_lruFastest size-aware LRU cache with highest hit rate via LHD algorithm / 最快的大小感知 LRU 缓存，基于 LHD 算法实现最高命中率621MulanPSL-2.0
size_of_const_macroMacro for generating the constant of a type's size.1,523MIT OR Apache-2.0
sizedSized Implementation of Unsized types3,156MIT
sized-chunksEfficient sized chunk datatypes42,830,398MPL-2.0+
sized-dataSized data trait + macro implementation for use in Anchor framework.1,624MIT
sized-dstOwned container for dynamically-sized types backed by inline memory2,428MIT OR Apache-2.0
sized-object-poolObject size aware object pool.50,779MIT
sized-vecType level sized vectors30,507MPL-2.0+
sized_bitsetstatically-sized biset7,543MIT
sized_bitset_macrosinternal use macros for sized_biset5,432MIT
sized_constAdds a const trait for any sized type, containing a SIZE constant and easier unsafe transmutation1,695MIT
sized_data_deriveSized data macro implementation for use in Anchor framework.1,785MIT
sized_matrixSized matrices using const generics for better type checking and performance11,670MIT
sizedbytesRust macro annotating the constant size value to a constant bytestring2,331Apache-2.0
sizefA simple #[no_std] crate to format file sizes7,780MIT
sizefilterHuman-readable size string parsing, formatting, and filtering with comparison operators (e.g., ">=1GB", "<500KB")500MIT
sizefmtA crate that simplifies formatting of filesizes.1,658Apache-2.0
sizehogFind the biggest files under a path.18MIT
sizelintLint your working tree based on file size1,677MIT
sizeofcompute size of types in memory3,398non-standard
sizeof_internalcompute size of types in memory3,537non-standard
sizeof_macrocompute size of types in memory3,532non-standard
sizeplzA tool to get the size of folders within a directory1,575GPL-3.0-or-later
sizerhis tool searches for files bigger than 100mb in a given directory or the whole file system if no filepath is given1,580MIT
sizesA crate to format byte sizes5,667MIT OR BSD-3-Clause OR LGPL-3.0-only
sizifyA CLI tool to compress images to fit under a target size in KB by adjusting quality and downscaling if needed27MIT
sizrA fast, Rust-based tool to analyze file system usage with colorful output, file aggregation, exclusions, and directory…4,658MIT
sizzle-parserParser for Pythonic SSZ syntax, with some additions726MPL-2.0
sj...78,888LGPL-3.0-or-later
sj_cratelearn to publish1,584MIT
sjabloona crate for templating html1,379MIT
sjakkChess movegen8,429MIT OR Apache-2.0
sjcheihei419MIT
sjclLibrary which supports decrypting data that was encrypted using SJCL11,196MIT OR Apache-2.0
sjconvA simple standalone convolver for JACK607MIT
sjdiffStructural JSON Diff Library for Rust6,560MIT
sjeFast JSON deserialisation and serialisation schema based framework.5,814MIT
sje_deriveFast JSON deserialisation and serialisation schema based framework.5,700MIT
sjflSimple language for config files12,117MIT
sjis-literalsA macro for including Shift-JIS text in a Rust application1,820MIT/Apache-2.0
sjlSimple JSON Logger953MIT
sjljsetjmp/longjmp for Rust8,214MIT
sjlj2Safer, cheaper and more ergonomic setjmp/longjmp in Rust2,831MIT OR Apache-2.0
sjmbIRC bot1,490MIT OR Apache-2.0
sjqOMAGAD such a JSON parser ! So fast !7,796Unlicense
sjq-crate-publish-demofirst crate1,548MIT
sjqchatsjqchat2,747MIT
sjqchatappA simple chat app1,587MIT
sjqjobrunnersjqjobrunner10,881MIT
sjqmmosjqbbdu1,752MIT
sjsonSet JSON values quickly550MIT
skReserved for OSKT2,643MIT
sk-apiSimKube API definitions9,609non-standard
sk-cborCBOR parsing library73,034Apache-2.0
sk-coreSimKube core libraries8,443non-standard
sk-ctrlKubernetes controller for replaying traces in a simulated cluster6,646non-standard
sk-driverSimKube simulation runner job6,620non-standard
sk-langThe SK Programming Language interpreter185MIT
sk-pqcSovereign shared Rust post-quantum crypto core: the full SK confidentiality toolkit — hybrid X25519+ML-KEM-768 KEM, DM + group…18Apache-2.0
sk-skelDSL for querying and transforming SimKube traces84non-standard
sk-skimmerFuzzy Finder in rust!8,084MIT
sk-storeSimKube trace store library7,835non-standard
sk-terminal-toolA easy terminal tool.1,484MIT OR Apache-2.0
sk-tracerSimKube trace collection agent6,638non-standard
sk6812_rpiSK6812RGBW library for RaspberryPi11,707MIT
sk8brdSimple remote devboard control software1,338BSD-3-Clause
sk8brd-protoSimple remote devboard control software1,638BSD-3-Clause
sk_dkimDeterministic DKIM key generation based on secret key / 基于密钥的确定性 DKIM 密钥生成743MulanPSL-2.0
skaSplit k-mer analysis27,087Apache-2.0
skabelonSimple templating engine for rust using angular syntax8,347MIT
skadeFast Apache Iceberg table writing/reading (incl. identity-partitioned writes) and ergonomic DataFusion SQL over an embedded,…568Apache-2.0
skade-katalogThe katalog under skade: an embedded, single-file ACID Apache Iceberg catalog (redb) with time-travel snapshots and atomic…491Apache-2.0
skafkaA simple kafka wrapper for rdkafka1,458MIT
skailarOfficial Rust SDK for the Skailar API17MIT
skald-cliAI-powered git workflow CLI107MIT
skald-coreCore library for skald — config, logging, output, error types20MIT
skald-platformPlatform adapter trait and implementations for skald20MIT
skald-providersAI provider trait and implementations for skald20MIT
skald-vcsVCS adapter trait and implementations for skald20MIT
skaleA utility intended for multi-proxying web-requests.1,788non-standard
skanSkan is a Rust-native, Java Scanner-inspired library that provides type-safe, convenient methods for parsing various data types…738MIT
skanda_engineA zero-dependency, ultra-high-performance retrieval engine designed for the next generation of RAG.20MIT
skaniskani is a fast tool for calculating ANI between metagenomic sequences, such as metagenome-assembled genomes (MAGs). It is…7,611MIT OR Apache-2.0
skar-clientclient library for skar43,131MPL-2.0
skar-client-fuelclient library for skar7,397MIT
skar-formatevm format library11,476MPL-2.0
skar-format-fuelfuel network format library5,723MIT
skar-net-typesskar types for transport over network13,348MPL-2.0
skar-net-types-fuelskar types for transport over network4,346MIT
skar-schemaschema utilities for skar8,823MPL-2.0
skar-schema-fuelschema utilities for skar3,210MIT
skardiHigh performance query engine for both offline compute and online serving121Apache-2.0
skarnSkarn — a cross-platform MCP gateway with OS-native sandboxing, Code Mode, and token compression.32MIT OR Apache-2.0