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.
ustaMulti-stack project scaffolder with deterministic template extraction.124MIT OR Apache-2.0
ustar-parserLightweight STAR format parser for CIF, mmCIF, NMR-STAR, and other scientific data formats409LGPL-3.0-only
ustar-test-utilsShared test utilities for ustar crates175LGPL-3.0-only
ustar-toolsCommand-line tools for STAR format parsing and processing25LGPL-3.0-only
ustatA (small) tool for computing statistics on XSV files.4,912MIT
ustc_casa simple library for logging into USTC CAS System7,166non-standard
ustdMicro stdlib1,540MIT/Apache-2.0
ustrFast, FFI-friendly string interning.2,567,564BSD-2-Clause-Patent
ustr-fxhashFast, FFI-friendly string interning.206,368BSD-2-Clause-Patent
ustreamerPlaceholder for upcoming project457GPL-3.0
ustreamer-appIntegration traits and helpers for wiring wgpu apps into ultra-streamer22MIT OR Apache-2.0
ustreamer-captureGPU frame capture from wgpu render targets — zero-copy (Metal/NVENC) and staging buffer paths78MIT OR Apache-2.0
ustreamer-encodeHardware video encoding — VideoToolbox (macOS), NVENC (NVIDIA), and direct AMF56MIT OR Apache-2.0
ustreamer-inputBrowser input event bridge — binary decode and mapping to application interaction events67MIT OR Apache-2.0
ustreamer-protoShared protocol types for ultra-streamer: frame packets, input events, quality parameters234MIT OR Apache-2.0
ustreamer-qualityAdaptive quality controller — tier switching, idle detection, lossless refinement logic66MIT OR Apache-2.0
ustreamer-transportWebTransport server (QUIC/HTTP3 via quinn) with WebSocket fallback22MIT OR Apache-2.0
ustulation-test0Various rust tests2,511GPL-3.0
ustulation-test1Various rust tests3,756GPL-3.0
ustxRust data structures for OpenUtau .ustx project files.89MIT OR Apache-2.0
ustyleA text-styling library for Rust `no_std` embedded targets.55MIT
usualAn experimental, extremely light, 'NORM' wrapper.21,455MIT
usual-procThe proc macros behind usual22,251MIT
ususYour best partner for AI harnesses40MIT
usvUSV: Unicode Separated Values (USV) for data markup. This is for spreadsheets, databases, content management, and more. This…63,690MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0
usv-to-asvUSV to ASV: Convert Unicode Separated Values (USV) to ASCII Separated Values (ASV) such as for data markup, including for…13,132MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0
usv-to-csvUSV to CSV: Convert Unicode Separated Values (USV) to Comma Separated Values (CSV) for data markup, including for spreadsheets,…14,856MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0
usv-to-jsonUSV to JSON: Convert Unicode Separated Values (USV) to JavaScript Object Notation (JSON) for data markup, including for…7,289MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0
usv-to-xlsxUSV to XLSX: Convert Unicode Separated Values (USV) to Microsoft Excel (XLSX) for data markup, including for spreadsheets,…8,472MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0
usvgAn SVG simplification library.22,486,951Apache-2.0 OR MIT
usvg-cliDEPRECATED! Use usvg instead.9,899MPL-2.0
usvg-optionsSerializable config struct mirroring the configurable subset of usvg::Options25Apache-2.0
usvg-parserAn SVG parser used by usvg.3,932,201MPL-2.0
usvg-remote-resolversA library for resolving remote resources in SVG files for usvg.5,162MIT
usvg-text-layoutAn SVG text layout implementation.2,765,351MPL-2.0
usvg-treeAn SVG tree representation used by usvg.3,933,432MPL-2.0
usvg_exposedAn SVG simplification library.330Apache-2.0 OR MIT
usvgrAn SVG simplification library.31,331MPL-2.0
usvgr-text-layoutAn SVG text layout implementation.13,528MPL-2.0
uswitchSwitch user and group on UNIX systems2,941 AGPL-3.0-only
usxf-coreUnified State Exchange Format core types for PermeantOS79Apache-2.0
usyncfast, drop-in, synchronization primitives41,823MIT
uszeSometimes you just need a calculator1,303MIT
utUT automatically wraps async functions in a synchronous wrapper based on feature flags1,948MIT
ut-cliA command line tool to handle unix timestamp.7,715MIT
ut-dialogA work-in-progress UNDERTALE dialog box generator library1,796GPL-3.0-or-later
ut181aUni-T UT181A DMM remote control5,945MIT
ut181a-cliUni-T UT181A DMM remote control CLI3,407MIT
ut1_blocklistUT1 blocklist URL/domain filters10,788MIT
ut325f-rsSupport for Uni-T UT325-F thermocouple meter5,675BSD-3-Clause
ut_grade_parserA grade distribution parser for the University of Texas at Austin2,636MIT OR Apache-2.0
utahdataframe structure and operations5,339MIT
utah2utah but it works for rust 20182,944MIT
utallyUnique ids in static contexts1,237MIT OR Apache-2.0
utapi-rsA Rust wrapper around the UploadThing API.4,232MIT
utcDisplays the current coordinated universal date and time.6,849MIT
utc-datetimeReturn timestamp of UTC datetime,Convert time string to UTC datetime22,485MIT
utc-dtSimple, fast and small UTC date, timestamp and datetime library for Rust.65,203MIT OR Apache-2.0
utc-offsetWhen you absolutely NEED the UTC offset60,664MIT
utc2kA fast and lean UTC date/time library concerned only with happenings in this century (2000-2099).64,946WTFPL
utcizeNormalize any datetime input to UTC. Automatically.541Apache-2.0
utcnowGet the current unixtime in a no-std context1,232,360Apache-2.0
utctimestampSimple & fast 64 bit UTC time types7,145MIT OR Apache-2.0
utdCreate and manage activities and notes offline in your terminal5,922MIT/Apache-2.0
uteute - (U)biquitous (T)ile (E)ngine - library for matching and manipulating n-sided polygons with tagged sides (in rust)1,790Apache-2.0
ute2ute2 - (U)biquitous (T)ile (E)ngine (2) - lib for parsing and manipulating abstract polygons with tagged sides1,658MIT OR Apache-2.0
uteke-cliCLI for Uteke — persistent semantic memory for AI agents, offline-first, ~30ms recall172Apache-2.0
uteke-coreThe Brain for Your AI — persistent memory and smart context management813Apache-2.0
uteke-mcpMCP server for uteke — expose persistent memory to AI coding agents536Apache-2.0
uteke-serverHTTP server for uteke — persistent warm memory for AI agents463Apache-2.0
utemA library for automatic translation from UTEM (Universal Text Encoding as Meaning).2,124MIT
utensilAndroid battery and idle policy daemon for CoreShift54MPL-2.0
utensil-bsAndroid battery-status streaming daemon172MPL-2.0
utensil-dsAndroid device-idle state machine daemon270MPL-2.0
utensil-wdAndroid background-app watchdog daemon190MPL-2.0
utestutest is a simple unit testing library.1,241MIT
utfUTF-869,112MIT OR Apache-2.0
utf-16-to-utf-32Convert UTF-16 to UTF-32 encoding.1,479MIT-0
utf-16-to-utf-8Convert UTF-16 to UTF-8 encoding.2,683MIT-0
utf-16-validateValidate UTF-16 encoding.1,510MIT-0
utf-32-to-utf-16Convert UTF-32 to UTF-16 encoding.1,520MIT-0
utf-32-to-utf-8Convert UTF-32 to UTF-8 encoding.6,137MIT-0
utf-32-validateValidate UTF-32 encoding.1,466MIT-0
utf-64The next-generation text encoding standard using 64 bits per character262MIT OR Apache-2.0
utf-8Incremental, zero-copy UTF-8 decoding with error handling232,394,685MIT OR Apache-2.0
utf-8-to-utf-16Convert UTF-8 to UTF-16 encoding.1,470MIT-0
utf-8-to-utf-32Convert UTF-8 to UTF-32 encoding.1,460MIT-0
utf-8-validateValidate UTF-8 encoding.1,488MIT-0
utf-cliA UTF code viewer1,525MIT
utf-crawlerAn ASCII art themed dungeon crawler with roguelike elements written in Rust.4,704ISC
utf-railroadGenerate text railroad diagrams in rust.2,736MIT
utf16...1,267MIT OR Apache-2.0
utf16-extExtensions for reading and writing utf-169,126MIT
utf16-simdSIMD-accelerated UTF-16/UTF-16LE -> UTF-8 escaping (JSON/XML)40,170MIT OR Apache-2.0
utf16_iterIterator by char over potentially-invalid UTF-16 in &[u16]161,160,674Apache-2.0 OR MIT
utf16_litmacro_rules to make utf-16 literals.4,959,075Zlib OR Apache-2.0 OR MIT
utf16_literalProvides the u16! macro that emits a UTF-16 string literal12,285MIT OR Apache-2.0
utf16_readerReader for UTF16 files for Rust17,973MIT
utf16stringString types to work directly with UTF-16 encoded strings6,000,146MIT OR Apache-2.0
utf16stringsA small lib to make utf16 strings at compile time1,336Apache-2.0
utf32-litA macro for creating `&[char]` literals5,784MIT
utf58High-tech encoding of the Unicode space in one quibble and up to 3 bytes5,357MIT OR Apache-2.0
utf64A utility to encode utf-8 strings into utf-64, and decode them back.4,602non-standard
utf7-imapMailbox names encoder and decoder (UTF-7 IMAP RFC 3501)70,629MIT
utf8-analyzerattempts to analyze stdin data as utf812MIT OR Apache-2.0
utf8-bufreadProvides alternatives to BufRead's read_line & lines that stop not on newlines7,261Apache-2.0
utf8-builderBuild and validate UTF-8 data from chunks. Each chunk doesn't have to be a complete UTF-8 data.4,006MIT
utf8-bytesbytes::Bytes, but UTF-8129Apache-2.0 OR MIT
utf8-charsChar-by-char iterator and `read_char` method for `BufRead`.657,319MIT OR Apache-2.0
utf8-chunkedIncremental UTF-8 decoder that safely handles multi-byte characters split across chunk boundaries29MIT OR Apache-2.0
utf8-commandUTF-8 encoded `std::process::Command` output12,953MIT
utf8-consoleCross-platform enabling of UTF-8 console IO1,484MIT OR Apache-2.0
utf8-cstrType wrappers promising null termination and utf-8 validity. The intersection of `std::ffi::CStr` and `str`5,844,815Apache-2.0 OR MIT
utf8-decodeUTF-8 incremental decoding iterators.8,845,039MIT/Apache-2.0
utf8-fixFix invalid UTF-8 sequences in-place while preserving buffer size - useful for fuzzing and mutation testing69MIT OR Apache-2.0
utf8-ioTraits and types for UTF-8 I/O53,215Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT
utf8-localeDetect a UTF-8-capable locale for running child processes in7,324BSD-2-Clause
utf8-normCommand line tool to validate and normalize UTF-8 data4,571GPL-3.0-only
utf8-parserA one-byte-at-a-time UTF-8 parser4,658MIT OR Apache-2.0
utf8-rangesDEPRECATED. Use regex-syntax::utf8 submodule instead.49,255,480Unlicense/MIT
utf8-readUTF-8 reader from a stream38,755MIT OR Apache-2.0
utf8-rfc2279An implementation of UTF-8 according to the obsolete RFC22791,602MIT OR Apache-2.0
utf8-runeLightweight crate that aims at being a building block
for libraries that work with UTF-8 data.
This crate provides the struct…1,227MIT
utf8-streamLightweight crate that provides Utf8Stream that "streams" over utf8 chunks and derefs to string slices498MIT
utf8-supportedDetermine the UTF-8 support of the current locale.8,124MIT/Apache-2.0
utf8-to-windows-vkcTranslates utf8/ascii strings into Win32 keystrokes.1,927MIT
utf8-tokioStreaming UTF-8 codec based on Tokio463,717Apache-2.0 WITH LLVM-exception
utf8-widthTo determine the width of a UTF-8 character by providing its first byte.66,236,311MIT
utf8-zeroZero-copy, incremental UTF-8 decoding with error handling24,020,778MIT OR Apache-2.0
utf8_iterIterator by char over potentially-invalid UTF-8 in &[u8]403,900,333Apache-2.0 OR MIT
utf8_readerA UTF-8 reader that read UTF-8 characters from object that implement Read trait8,071MIT
utf8_sliceLightweight UTF8 Slice Utilities33,431MIT
utf8_utilsmisc sugar for working with utf-8 encoded bytes1,549Apache-2.0
utf8charA crate that supplies a utf8 encoded char1,600MPL-2.0
utf8convA UTF8 / Unicode Converter for no_std5,546MIT OR Apache-2.0
utf8dok-astAbstract Syntax Tree definitions for utf8dok240MIT OR Apache-2.0
utf8dok-cliCommand-line interface for utf8dok document processor31MIT OR Apache-2.0
utf8dok-coreCore library for utf8dok - a blazing-fast document processor240MIT OR Apache-2.0
utf8dok-wasmWebAssembly bindings for utf8dok document processor32MIT OR Apache-2.0
utf8mb3Let mysql's utf8 encoding store four-byte characters such as emoji(让 mysql 的 utf8 编码存储表情符号这类的四字节字符).2,676MIT
utf8nextA simple function for getting the next character and its length in bytes from a string.215non-standard
utf8parseTable-driven UTF-8 parser521,966,618Apache-2.0 OR MIT
utf8pathutf8path provides a String-friendly path type25,901Apache-2.0
utf8path2utf8path2 - a library for working with UTF-8 paths in Rust528MIT
utf8procRust bindings to the utf8proc library1,256MIT
utf8proc-sysUnsafe rust bindings to the utf8proc library1,494MIT AND Unicode-3.0
utf8proj-cliCommand-line interface for utf8proj scheduling engine29MIT OR Apache-2.0
utf8proj-coreCore domain model and traits for utf8proj scheduling engine437MIT OR Apache-2.0
utf8proj-lspLanguage Server Protocol implementation for utf8proj23MIT OR Apache-2.0
utf8proj-parserParser for utf8proj native DSL (.proj files)286MIT OR Apache-2.0
utf8proj-renderRendering backends for utf8proj (SVG, text, etc.)122MIT OR Apache-2.0
utf8proj-solverScheduling solver for utf8proj (CPM, resource leveling)281MIT OR Apache-2.0
utf8readerProvides a wrapper around Reader that returns a stream of UTF-8 characters10,518MIT OR Apache-2.0
utf8streamreaderProvides a lookahead iterator on an utf8 byte stream992non-standard
utf8toipv4Convert UTF-8 to ipv4 addresses and vice versa637non-standard
utf_symbolsA quick tool to search symbols (any named character) in the utf table.1,881MIT
utfx...250,760MIT OR Apache-2.0
utiSafe Rust bindings for Apple's UniformTypeIdentifiers framework — file-type / MIME identification on macOS159MIT OR Apache-2.0
utigoUtigo, a package manager for C++.1,593MIT OR Apache-2.0
utilUtilities18,860MIT OR Apache-2.0
util-cursorA simple cursor implementation for reading data from array slice.1,824MIT
util-easySmall utility helpers for common tasks.22MIT OR Apache-2.0
util-gpui-standaloneA collection of utility structs and functions used by Zed and GPUI430Apache-2.0
util-gpui-unofficialA collection of utility structs and functions used by Zed and GPUI3,932Apache-2.0
util-linuxutil-linux ~ util-linux; implemented as universal (cross-platform) utils, written in Rust1,138MIT
util-macros-gpui-unofficialUtility macros for Zed2,321Apache-2.0
util-rsgeneral utilities for rust, currently only for user input5,333WTFPL
util_macros-gpui-standaloneUtility macros for Zed429Apache-2.0
util_mlFunctions required for data analysis and machine learning tasks1,192MIT
utilblueA utility package for mrtomblue projects1,493MIT
utilboxutilbox431MIT OR Apache-2.0
utileUtility library82MIT OR Apache-2.0
utile_cliUseful abstractions for pancurses.10,338MIT
utilesWeb map tile utils (aka utiles)13,343MIT OR Apache-2.0
utiles-coreMap tile utilities aka utiles13,771MIT OR Apache-2.0
utiles-coverweb-map-tile coverage for geojson/geo-types152MIT OR Apache-2.0
utiliblueA utility package for mrtomblue projects1,137MIT
utilitiesUtilities for WebRTC.rs stack1,868MIT/Apache-2.0
utilities_rsA small library of Rust utilities129MIT
utility工具类2,690MIT OR Apache-2.0
utility-cli-rshuman-friendly console utility that helps to interact with unc Protocol from command line.10,241GPL-2.0-or-later
utility-cryptoThis is an internal crate for common cryptographic types1,527MIT OR Apache-2.0
utility-macrosA Rust library to emulate Utility Types and Unions from TypeScript6,220MIT
utility-macros-derivederive macros for utility-macros6,567MIT
utility-macros-internalsutility-macros and utiliy-macros-derive common code5,834MIT
utility-typesThis crate use proc-macro to realize several utility types of TypeScript91,441MIT
utility-workspacesLibrary for automating workflows and testing Utility smart contracts.6,711GPL-2.0-or-later
utility_converterThis Rust lib offering accurate conversions for temperature, weight, and distance2,416MIT
utility_gamesutils to make games and more7,500MIT OR Apache-2.0
utilitybeltA CLI tool for interacting with MCP endpoints729MIT
utillMade for basic utillities in rust1,785MIT-0
utilprintA utility crate for easily using colors or unicode in your terminal printing4,758MIT
utilsCommon utilities suitable for use in Rust Builders27,783MIT
utils-atomicsVarious atomic utils24,701MIT
utils-boxA toolbox of various small RUST utilities that make our lifes easier10,313MIT
utils-box-archivesA toolbox of various small RUST utilities that makes handling compressed files easier910MIT
utils-box-bitsA toolbox of various small RUST utilities that make bit types handling easier940MIT
utils-box-configA toolbox of various small RUST utilities that make handling configuration files easier912MIT
utils-box-connectionsA toolbox of various small RUST utilities that make our lifes easier910MIT
utils-box-debugA toolbox of various small RUST utilities that make handling different types client/server connections easier910MIT