Source: doc.rust-lang.org (std library reference) · crates.io database dump, 2026-07-25 (crates directory)Contact
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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.

numtestUnit testing for numerical methods.14,372MIT OR Apache-2.0Development tools::TestingMathematics numtimesA command line tool that prints out the multiplication table of a number901GPL-3.0-or-laterCommand line utilities numtoaConvert numbers into stack-allocated byte arrays9,922,463MIT OR Apache-2.0Embedded developmentNo standard library numtostrConverts an array of numbers to a textual string1,874MIT numtraitsUseful trait(s) for number types.4,425MIT numutilUtility for working with Rust's core numeric types. Convenient and fast conversions between core types and other core types, core…19non-standard numwitwitness types and operations for numbers which are positive or negative (but not zero)1,585MIT OR Apache-2.0 numyTrait boundaries for primitive Rust types264MIT nunNano's unified notation1,682MIT nuncWIP: time tracking application1,573GPL-3.0-or-later nunc-timeTrustworthy wall-clock time via multi-source network consensus26MIT OR Apache-2.0Date and timeNetwork programming nunchi-commonCore abstractions for addresses, state, and runtime in the Nunchi SDK.29BUSL-1.1 nunchi-cryptoWrappers around commonware cryptographic primitives for the Nunchi SDK.57BUSL-1.1 nunchi-dkgReusable DKG and resharing support for Nunchi examples.38BUSL-1.1 nunchi-mempoolSimple p2p transaction mempool for Nunchi chains.20BUSL-1.1 nunchi-rpcCore abstractions for modular RPC in the Nunchi SDK.39BUSL-1.1 nunnythe definitive non-empty slice/array/vec library for Rust170,151MIT OR Apache-2.0Data structuresEmbedded development nuntiusGeneric value broker161MIT nuoAwesome web framework for Rust...1,315AALWeb programmingWeb programming::HTTP client nuonSupport for the NUON format.157,177MIT nupA command line tool to monitor and log network downtime and latency.1,649MIT nuphyctlCLI for sending NuPhy keyboard HID commands43MIT nupromptA personal bash prompt.1,618non-standardCommand-line interface nurnur - a taskrunner based on nu shell69,828MITCommand line utilitiesDevelopment tools nuralFast, minimal, context aware CLI note tool1,104GPL-3.0Command line utilities nure_cliCLI for nure_tools8,963non-standard nure_toolsmindenit API wrapper18,269non-standard nurinuri ui-framework1,118MIT OR Apache-2.0 nurku-rsLibrary crate for nmk70EUPL-1.2API bindingsWeb programming::HTTP client nurku-rs_containerDerive macros for different kinds of containers119EUPL-1.2Data structures nurku-rs_container-implHelper crate for nurku-rs_container164EUPL-1.2 nurku-rs_macrosA macro collection, mostly to help me with testing118EUPL-1.2Development tools::Testing nurlGenerate Nix fetcher calls from repository URLs20,633MPL-2.0Command line utilities nuroUnified public API for the Nuro AI agent SDK.21Apache-2.0 nuro-a2aA2A protocol implementation for Nuro.75Apache-2.0 nuro-coreCore types and traits for the Nuro AI agent SDK.474Apache-2.0 nuro-graphState graph engine for Nuro.75Apache-2.0 nuro-llmLLM provider abstractions and implementations for Nuro.126Apache-2.0 nuro-macrosProcedural macros for Nuro.76Apache-2.0 nuro-mcpMinimal MCP protocol implementation for Nuro.75Apache-2.0 nuro-memoryConversation memory and storage for Nuro.77Apache-2.0 nuro-ragRAG indexing and retrieval components for Nuro.75Apache-2.0 nuro-runtimeAgent execution runtime for the Nuro AI agent SDK.125Apache-2.0 nuro-serverHTTP server utilities for Nuro.75Apache-2.0 nuro-toolsTool abstractions and built-in tools for Nuro.171Apache-2.0 nurseHelp users nurse their programs back to heath53MITCommand-line interfaceParsing tools nurseryAn implemenation of Nathaniel J. Smiths Concurrency primitive for Rust.2,766Apache-2.0 nursery_macroTBD15,155ISC nurtexCreate efficient and lightweight Minecraft bots or clients.181MITAsynchronousGames nurtex-codecLibrary for serializing types from the Minecraft protocol.188MITGames nurtex-deriveLibrary containing auxiliary procedural macros for serializing Minecraft packet types.187MITGames nurtex-encryptLibrary for Minecraft protocol encryption.184MITGames nurtex-protocolLibrary that allows a Minecraft client to communicate with a server.133MITAsynchronousGames nurtex-proxyLibrary for creating connections via SOCKS5 / SOCKS4 proxy.163MITAsynchronous nurtex-registryMinecraft data registry.89MITGames nurv_configA Rust library for managing YAML configuration files in a structured way.24MIT OR Apache-2.0Command line utilitiesWeb programming nus3audioA library for working with namco nus3audio audio archives.18,242MIT nusaweb-frontend features for kagura11,077MIT OR Apache-2.0GUIWeb programming nusadbFast, stable native Rust driver and ORM for NusaDB (Nusa Wire Protocol 1.1).16Apache-2.0Database interfaces nusbCross-platform low-level access to USB devices in pure Rust1,018,029Apache-2.0 OR MITHardware support nusb-webusbCross-platform low-level access to USB devices in pure Rust941Apache-2.0 OR MITHardware support nusbipA forked library to run USB/IP server based on nusb194MIT nuscenes-dataNuScenes dataset loader in Rust7,049non-standardParsing tools nuscenes-data-imageExtension crate to nuscenes-data adding `image` integration1,483non-standardParsing tools nuscenes-data-nalgebraExtension crate to nuscenes-data adding `nalgebra` integration1,538non-standardParsing tools nuscenes-data-opencvExtension crate to nuscenes-data adding `opencv` integration1,514non-standardParsing tools nuscenes-data-pcdExtension crate to nuscenes-data adding `pcd-rs` integration1,545non-standardParsing tools nusguiGUI to communicate with BLE NUS devices62MIT nushellA shell for the GitHub era1,372ISC nuspecImplementation of Nuspec Specification840MIT OR Apache-2.0Development tools::Build Utils nust64Build tools for compiling a Rust project into an N64 ROM.17,961MITCommand line utilitiesDevelopment tools::Build Utils nustatPlaceholder1,471MITNetwork programming nustifySend iOS/Android Notifications using IFTTT's Webhook4,010MIT nusy-arrow-coreArrow-native neurosymbolic graph store — triple storage, SPARQL-like queries, namespace partitioning, and Parquet persistence355MITData structuresDatabase implementations nusy-arrow-gitGraph-native git on Arrow RecordBatches — commit, checkout, merge, diff, blame, rebase, cherry-pick, revert305MITData structuresDevelopment tools nusy-codegraphCode-as-graph: Arrow-native code object representation with tree-sitter parsing200MIT nusy-conductorAgent orchestration conductor — reads kanban state via NATS, decomposes expeditions, tracks agent availability140MIT nusy-craneliftV13: Graph-native Cranelift JIT frontend — CodeNode → CLIF IR132MIT nusy-graph-queryGraph-native semantic search for Arrow RecordBatches — embeddings, traversal, hybrid ranking, and caching239MITData structuresScience nusy-graph-reviewProposal and review workflow for Arrow knowledge graph changes, with safety gates167MIT nusy-kanbanArrow-native kanban engine — SHACL shapes, graph-native PRs, dual boards, NATS multi-agent collaboration129MITCommand line utilitiesData structures nusy-kanban-serverNATS server + client bridge for the Arrow-native kanban engine82MIT nutBolt DB Port in Rust23,638MIT nut-clientNetwork UPS Tools (NUT) client library17,115MITNetwork programming nut-shellA lightweight command-line interface library for embedded systems195MIT OR Apache-2.0Command-line interfaceEmbedded development nut-shell-macrosProcedural macros for nut-shell - a lightweight CLI library for embedded systems1,002MIT OR Apache-2.0Development tools::Procedural macro helpersEmbedded development nut-workspaceA workspace manager for working with multiple GitHub repositories simultaneously.508non-standardCommand line utilitiesDevelopment tools nut_selfMakes your code nut.1,622MIT nut_sysWrapper for Number-Theory-Utils C library2,441MPL-2.0API bindingsExternal FFI bindings nutekThe only h@xor tool you will ever need 🥷.9,708MIT OR Apache-2.0Games nutek-cipherEncrypt and decrypt files and text with ease9,193MIT OR Apache-2.0Command-line interface nutek-cipher-libEncrypt and decrypt data using AES-GCM-SIV.1,491non-standard nutek-encodeA collection of encoding and hashing utilities702MIT nutek_crt_shGet list of subdomain names for an address from crt.sh website1,363MITCommand-line interface nutexbLibrary for working with Smash Ultimate's nutexb texture files11,141MIT nuthatchBe your own indexer. One Rust binary, one command, live in under two minutes.28AGPL-3.0-onlyCommand line utilitiesCryptography::Cryptocurrencies nutilsNanocl shared utils1,590MIT OR Apache-2.0 nutils-polyLow-level functions for evaluating and manipulating polynomials2,321MITMathematics nutmegAn unopinionated progress bar library297,123MIT nutorchNutorch is a wrapper for tch-rs, itself a wrapper for libtorch, the C++ backend for PyTorch. It provides a plugin for Nushell to…1,355MIT nutpThe New UART Transfer Protocol9,797MIT nutrifyiRust client for the NutriFYI API — https://nutrifyi.com21MITAPI bindingsWeb programming::HTTP client nutrimaticTools for reading Nutrimatic (https://nutrimatic.org) index files2,812MIT OR Apache-2.0Text processing nutrition-aiRust wrapper to analyze food nutrition using Google Gemini823MITAPI bindings nutrition_rsA CLI for flexible plaintext nutrition tracking114MIT nutsNuts is a library that offers a simple publish-subscribe API, featuring decoupled creation of the publisher and the subscriber.7,876MIT/Apache-2.0Memory managementWebAssembly nuts-archiveA tar like archive on top of the nuts-container32,524MITCryptography nuts-backendA secure storage library26,108MITCryptography nuts-bytesSerialization into a binary data format31,887MITEncoding nuts-bytes-deriveSerialization into a binary data format29,349MITEncoding nuts-containerA secure storage library31,006MITCryptography nuts-deriveDerive macros for nuts-rs16,349MIT nuts-directoryA backend implementation for nuts31,399MITCryptography nuts-memoryA backend implementation for nuts24,946MITCryptography nuts-rsSample from unnormalized densities using Hamiltonian MCMC52,557MIT nuts-storableTraits for serializing and deserializing NUTS models and states in nuts-rs22,649MIT nuts-toolA cmdline utility for the nuts container39,181MITCommand line utilitiesCryptography nuts-tool-apiCode that helps you to implement a nuts tool plugin18,437MITCommand line utilitiesCryptography nutshellImage manager of Project Polya3,011MITCompressionFilesystem nutt-conf-parserParser for nutt-web config file2,499Apache-2.0 nutt-webNew modern backend web framework focused in microservice infrastructure1,075Apache-2.0 nutt-web-macroProcedural macro for nutt-web framework3,988Apache-2.0 nuttx-arm64-emulatorEmulate Apache NuttX RTOS for Arm64 with Unicorn Emulator (Avaota-A1 SBC)5,468Apache-2.0Emulators nuttx-embedded-halRust Embedded HAL for Apache NuttX RTOS13,396Apache-2.0Embedded developmentHardware support nuttx-pr-botLLM Bot that reviews Pull Requests for Apache NuttX RTOS1,137Apache-2.0Command line utilities nuttx-prometheus-to-mastodonContinuous Integration for Apache NuttX RTOS: Publish Failed Builds from Prometheus to Mastodon906Apache-2.0Command line utilities nuttx-rewind-notifyApache NuttX RTOS: Notify via Mastodon the results of Rewind Builds787Apache-2.0Command line utilities nuttx-test-botBot that Builds and Tests Pull Requests for Apache NuttX RTOS3,931Apache-2.0Command line utilities nuttyBuild terminal-based applications with a modern Rust API1,513MITCommand-line interfaceExternal FFI bindings nutypeThe newtype with guarantees.4,844,915MITData structuresRust patterns nutype-enumHelper macro to create a nutype that behaves like an enum.128,135MIT OR Apache-2.0 nutype_macrosThe newtype with guarantees.4,843,668MITData structuresRust patterns nutype_test_utilErgonomically create newtypes in tests1,721MIT OR Apache-2.0Data structuresRust patterns nuuidA new, no_std, UUID Library22,161MIT OR Apache-2.0No standard libraryParser implementations nuuksioNuuksio asynchronous runtime1,643GPL-3.0-or-later nuuroA specialized 2D game library16,103Apache-2.0 nuuro_buildA specialized 2D game library12,467Apache-2.0 nuvwip21MIT nuviz-cliTerminal-native ML training visualization CLI23MITCommand line utilitiesVisualization nuvoTalk with client86LGPL-3.0-only nuwax-cliDocker service management and upgrade CLI19MIT OR Apache-2.0Command line utilitiesDevelopment tools nuwax-commonCommon utilities for nuwax projects - includes GitHub client, OSS client, downloader, and configuration106Apache-2.0 nuwax-sqlparserExtensible SQL Lexer and Parser with support for ANSI SQL:2011 (nuwax fork)245Apache-2.0 nuwax-syncSync GitHub Release assets to Alibaba Cloud OSS26Apache-2.0Command line utilitiesDevelopment tools nuwax-uploadUpload files to MinIO (S3-compatible) storage38MIT nux2d GUI renderer for human interface design, built on top of wgpu.478Apache-2.0 nuxioSimple and flexible networking utility for debugging and testing.708MITNetwork programming nuxmuxTmux companion for micro scripts541MIT nuya[UNDER CONSTRUCTION / RESERVED NAME]1,146MIT nuzeA Nu shell for Zenoh: debug systems, write (end-to-end) tests and build powerful CLI tools199EPL-2.0 OR Apache-2.0 nuzzleContainer compose tool16MIT nvSecure secret store9,608GPL-3.0 nv-cardAbstract model of a deck of cards5,050MIT nv-coreShared types, IDs, timestamps, geometry, errors, metadata, health events, and metrics for the NextVision runtime.376MIT OR Apache-2.0Computer visionConcurrency nv-flipHigh-Level bindings to Nvidia Labs's ꟻLIP image comparison and error visualization library631,093MIT OR Apache-2.0 OR Zlib nv-flip-sysFFI bindings to Nvidia Labs's ꟻLIP image comparison and error visualization library628,012(MIT OR Apache-2.0 OR Zlib) AND BSD-3-Clause nv-frameFrame abstraction for the NextVision runtime — zero-copy, ref-counted FrameEnvelope.338MIT OR Apache-2.0Computer visionConcurrency nv-kcpNaviaImpact KCP library1,648non-standard nv-mediaGStreamer backend for the NextVision runtime — source management, decode, and zero-copy bridge.120MIT OR Apache-2.0Computer visionConcurrency nv-metricsOptional OpenTelemetry metrics exporter for the NextVision runtime21MIT OR Apache-2.0Computer visionConcurrency nv-perceptionStage model, detection/track types, perception artifacts, and derived signals for the NextVision runtime.208MIT OR Apache-2.0Computer visionConcurrency nv-redfishRust implementation of Redfish API for BMC management87,895Apache-2.0Hardware support nv-redfish-bmc-httpHTTP client for nv-redfish88,095Apache-2.0Hardware support nv-redfish-bmc-mockBMC Mock skaffold for nv-redfish589Apache-2.0Hardware support nv-redfish-coreSemantic-unaware foundation used by code generated from CSDL for nv-redfish88,594Apache-2.0Hardware support nv-redfish-csdl-compilerCSDL (OData) schema compiler and Rust code generator for nv-redfish88,073Apache-2.0Hardware support nv-redfish-schemaBundled Redfish/Swordfish CSDL schemas and shared build-script helpers for nv-redfish38,644Apache-2.0Hardware support nv-runtimePipeline orchestration, feed lifecycle, output, provenance, and concurrency for the NextVision runtime.72MIT OR Apache-2.0Computer visionConcurrency nv-swaptopA terminal user interface tool to monitor swap, NUMA topology, and GPU memory usage.46MITCommand line utilitiesVisualization nv-temporalTemporal state management — trajectories, motion features, continuity, and retention for the NextVision runtime.119MIT OR Apache-2.0Computer visionConcurrency nv-test-utilTest harnesses, synthetic frames, mock stages, and controllable clock for NextVision.72MIT OR Apache-2.0Computer visionConcurrency nv-utilsA set of utilities and common abstractions1,973MIT nv-viewPTZ/view-state, camera motion modeling, epoch policy, and context validity for the NextVision runtime.293MIT OR Apache-2.0Computer visionConcurrency nv-xmlA very light weight xml library8,593MIT nv_fizzbuzzPrint the FizzBuzz numbers to the console1,827MIT nvana_fixedHigh-precision fixed-point arithmetic library for financial and DeFi calculations129MITAlgorithmsMathematics nvana_rev_epochHigh-precision revenue distribution library with time-decay bonus epochs26MITAlgorithmsFinance nvapiNVIDIA NVAPI bindings49,453MIT nvapi-hiNVIDIA NVAPI high level bindings9,987MIT nvapi-sysNVIDIA NVAPI FFI bindings48,831MIT nvapi_sys_newUpdated NVAPI bindings11,670MIT nvarejoReserved crate name for future work in Rust477MIT OR Apache-2.0 nvbit-buildBuild-time helpers for compiling NVIDIA NVBIT instrumentation81,057non-standardDevelopment tools::ProfilingExternal FFI bindings nvbit-ioNVIDIA NVBIT streaming encoder and decoder implementations using serde105,490non-standardAPI bindingsDevelopment tools::Profiling nvbit-modelNVIDIA NVBIT models for serialization and deserialization113,733non-standardAPI bindingsDevelopment tools::Profiling nvbit-rsIdiomatic library for using the NVIDIA NVBIT binary instrumentation library78,912non-standardAPI bindingsDevelopment tools::Profiling nvbit-sysNative bindings to the NVIDIA NVBIT binary instrumentation library84,305non-standardDevelopment tools::ProfilingExternal FFI bindings nvblas-sysThis package provides linkage to NVBLAS2,719MITExternal FFI bindingsScience nvcliCommand line interface to change a number of Nvidia control panel display settings7,336MIT nvcodecRust safe wrapper for NVIDIA Video Codec SDK2,693MIT/Apache-2.0 nvcodec-sysRust binding to NVIDIA Video Codec SDK1,852MIT/Apache-2.0 nvdSome functions about CPE and CVE19,083non-standard nvd-apiA rust implementation of the nvd-api.2,936GPL-3.0-only nvd-cpeA rust implementation of the nvd-cpe.6,380GPL-3.0-only nvd-cvesA rust implementation of the nvd-cve.3,694GPL-3.0-only nvd-cvssA rust implementation of the nvd-cvss.3,916GPL-3.0-only nvd-cweA rust implementation of the nvd-cwe.1,575GPL-3.0-only nvd_cveSearch for CVEs against a local cached copy of NIST National Vulnerability Database (NVD)6,340BSD-2-ClauseCachingCommand line utilities nvda_urlRetrieve download URLs for the NVDA screen reader.2,554MIT nvdialogSafe and lightweight bindings for libnvdialog.3,576MIT