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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.

wasmtime-environStandalone environment support for WebAssembly code in Cranelift29,710,263Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-environ-rwasmStandalone environment support for WebAssembly code in Cranelift2,830Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-explorerCompiler explorer for Wasmtime and Cranelift91,750Apache-2.0 WITH LLVM-exception wasmtime-fiberFiber support for Wasmtime8,194,904Apache-2.0 WITH LLVM-exception wasmtime-guest-pprofDrop-in helper that profiles a wasmtime guest with GuestProfiler and writes a pprof file (instead of Firefox JSON).116Apache-2.0Development tools::ProfilingWebAssembly wasmtime-interface-typesSupport for wasm interface types with wasmtime19,849Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-internal-asm-macrosINTERNAL: Macros for defining asm functions in Wasmtime3,811,613Apache-2.0 WITH LLVM-exception wasmtime-internal-c-api-macrosINTERNAL: Support macros for `wasmtime-c-api`104,104Apache-2.0 WITH LLVM-exception wasmtime-internal-cacheINTERNAL: Support for automatic module caching with Wasmtime7,290,139Apache-2.0 WITH LLVM-exception wasmtime-internal-component-macroINTERNAL: Macros for deriving component interface types from Rust types6,178,614Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-internal-component-utilINTERNAL: Utility types and functions to support the component model in Wasmtime6,288,883Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-internal-coreINTERNAL: Wasmtime's core utilities and helpers with minimal dependencies3,925,647Apache-2.0 WITH LLVM-exception wasmtime-internal-craneliftINTERNAL: Integration between Cranelift and Wasmtime10,257,872Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-internal-cranelift-rwasmINTERNAL: Integration between Cranelift and Wasmtime2,783Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-internal-debuggerINTERNAL: Wasmtime's guest-debugger functionality6,372Apache-2.0 WITH LLVM-exception wasmtime-internal-errorINTERNAL: Wasmtime's universal error type's implementation106Apache-2.0 WITH LLVM-exception wasmtime-internal-explorerINTERNAL: Compiler explorer for Wasmtime and Cranelift20,930Apache-2.0 WITH LLVM-exception wasmtime-internal-fiberINTERNAL: Fiber support for Wasmtime10,228,497Apache-2.0 WITH LLVM-exception wasmtime-internal-gdbstub-component-artifactgdbstub debug-component adapter306Apache-2.0 WITH LLVM-exception wasmtime-internal-jit-debugINTERNAL: JIT debug interfaces support for Wasmtime9,374,745Apache-2.0 WITH LLVM-exceptionDevelopment tools::Debugging wasmtime-internal-jit-icache-coherenceINTERNAL: Utilities for JIT icache maintenance10,960,878Apache-2.0 WITH LLVM-exception wasmtime-internal-mathINTERNAL: Low-level math routines used in Wasmtime7,592,384Apache-2.0 WITH LLVM-exception wasmtime-internal-slabINTERNAL: Uni-typed slab with a free list for use in Wasmtime7,047,583Apache-2.0 WITH LLVM-exception wasmtime-internal-unwinderINTERNAL: Wasmtime's unwind format and unwinder10,261,246Apache-2.0 WITH LLVM-exceptionNo standard library wasmtime-internal-versioned-export-macrosINTERNAL: Macros for defining versioned exports in Wasmtime10,280,901Apache-2.0 WITH LLVM-exception wasmtime-internal-winchINTERNAL: Integration between Wasmtime and Winch8,521,466Apache-2.0 WITH LLVM-exception wasmtime-internal-wit-bindgenINTERNAL: `*.wit` support for the `wasmtime` crate's macros6,178,354Apache-2.0 WITH LLVM-exception wasmtime-internal-wmemcheckINTERNAL: Memcheck implementation for Wasmtime6,051Apache-2.0 WITH LLVM-exception wasmtime-jitJIT-style execution for WebAsssembly code in Cranelift13,298,002Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-jit-debugJIT debug interfaces support for Wasmtime13,862,365Apache-2.0 WITH LLVM-exceptionDevelopment tools::Debugging wasmtime-jit-icache-coherenceUtilities for JIT icache maintenance15,714,908Apache-2.0 WITH LLVM-exception wasmtime-jniPlace holder1,764MIT/Apache-2.0 wasmtime-jni-exportsPlace holder1,757MIT/Apache-2.0 wasmtime-lightbeamIntegration between Lightbeam and Wasmtime36,039Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-mathLow-level math routines used in Wasmtime2,551,613Apache-2.0 WITH LLVM-exception wasmtime-objNative object file output for WebAsssembly code in Wasmtime1,674,375Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-profilingRuntime library support for Wasmtime1,733,221Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-providerA wasmtime engine provider for the waPC host227,706Apache-2.0API bindingsWebAssembly wasmtime-pyPython extension for Wasmtime13,171Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-runtimeRuntime library support for Wasmtime14,247,223Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-rustRust extension for Wasmtime30,870Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-rust-macroMacro support crate for wasmtime-rust31,540Apache-2.0 WITH LLVM-exception wasmtime-rwasmHigh-level API to expose the Wasmtime runtime5,282Apache-2.0 WITH LLVM-exception wasmtime-rwasm-craneliftIntegration between Cranelift and Wasmtime2,681Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-slabUni-typed slab with a free list for use in Wasmtime5,607,028Apache-2.0 WITH LLVM-exception wasmtime-typesWebAssembly type definitions for Cranelift14,218,934Apache-2.0 WITH LLVM-exception wasmtime-versioned-export-macrosMacros for defining versioned exports in Wasmtime7,788,150Apache-2.0 WITH LLVM-exception wasmtime-vfs-dirIn-memory WASI directory4,515Apache-2.0Filesystem wasmtime-vfs-fileIn-memory WASI file4,027Apache-2.0Filesystem wasmtime-vfs-keyfsWASI crypto file system3,918Apache-2.0CryptographyFilesystem wasmtime-vfs-ledgerWASI file system ledger4,817Apache-2.0Filesystem wasmtime-vfs-memoryTooling for building in-memory WASI file systems4,346Apache-2.0Filesystem wasmtime-wasiWASI implementation in Rust8,872,139Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wasi-cWASI API support for Wasmtime12,147Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wasi-configWasmtime implementation of the wasi-config API99,320Apache-2.0 WITH LLVM-exception wasmtime-wasi-cryptoWasmtime implementation of the wasi-crypto API72,814Apache-2.0 WITH LLVM-exceptionCryptographyWebAssembly wasmtime-wasi-httpExperimental HTTP library for WebAssembly in Wasmtime1,370,112Apache-2.0 WITH LLVM-exception wasmtime-wasi-http-plusAn enhanced implementation of wasmtime-wasi-http55MIT OR Apache-2.0WebAssembly wasmtime-wasi-iowasi-io common traits to be shared among other wasi implementations4,741,177Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wasi-keyvalueWasmtime implementation of the wasi-keyvalue API56,665Apache-2.0 WITH LLVM-exception wasmtime-wasi-keyvalue-redbredb backend for the wasi:keyvalue Wasmtime host implementation19Apache-2.0 WITH LLVM-exceptionDatabase interfacesWebAssembly wasmtime-wasi-keyvalue-redisRedis backend for the wasi:keyvalue Wasmtime host implementation19Apache-2.0 WITH LLVM-exceptionDatabase interfacesWebAssembly wasmtime-wasi-nnWasmtime implementation of the wasi-nn API295,035Apache-2.0 WITH LLVM-exceptionComputer visionWebAssembly wasmtime-wasi-runtime-configWasmtime implementation of the wasi-runtime-config API14,800Apache-2.0 WITH LLVM-exception wasmtime-wasi-threadsWasmtime implementation of the wasi-threads API117,908Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wasi-tlsWasmtime implementation of the wasi-tls API64,893Apache-2.0 WITH LLVM-exception wasmtime-wasi-tls-nativetlsWasmtime implementation of the wasi-tls API, using native-tls for TLS support.3,403Apache-2.0 WITH LLVM-exception wasmtime-wasi-tls-opensslWasmtime implementation of the wasi-tls API, using OpenSSL for TLS support.107Apache-2.0 WITH LLVM-exception wasmtime-wasi-usbExperimental USB library for WebAssembly in Wasmtime implementing wasi-usb637MIT wasmtime-wastwast testing support for wasmtime278,547Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wiggleIntegrate Wiggle code generator with Wasmtime57,606Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-wiggle-macroMacro for integrating Wiggle code generator with Wasmtime60,392Apache-2.0 WITH LLVM-exceptionWebAssembly wasmtime-winchIntegration between Wasmtime and Winch5,411,763Apache-2.0 WITH LLVM-exception wasmtime-wit-bindgenInternal `*.wit` support for the `wasmtime` crate's macros7,390,481Apache-2.0 WITH LLVM-exception wasmtime-wizerThe WebAssembly Pre-Initializer91,232Apache-2.0 WITH LLVM-exception wasmtime-wmemcheckMemcheck implementation for Wasmtime2,084,108Apache-2.0 WITH LLVM-exception wasmtime_runtime_layerWebAssembly runtime compatibility interface implementation for Wasmtime.26,893MIT OR Apache-2.0 wasmtime_serde_guestSimple library for serializing complex types to the wasmtime runtime using serde1,619Unlicense OR MIT wasmtime_serde_guest_macroSimple library for serializing complex types to the wasmtime runtime using serde2,213Unlicense OR MIT wasmtime_serde_hostSimple library for serializing complex types to the wasmtime runtime using serde5,016Unlicense OR MIT wasmtime_serde_host_macroSimple library for serializing complex types to the wasmtime runtime using serde2,228Unlicense OR MIT wasmtimerTime utils from std::time, tokio::time and tokio_util::time on WASM targets9,704,075MIT wasmutMutation testing tool for WebAssembly/WASI modules2,677MITCommand line utilitiesDevelopment tools::Testing wasmut-wasmWebAssembly low-level format library2,181MIT/Apache-2.0Parser implementationsWebAssembly wasmvisionRust bindings for wasmVision platform host functions.9,989Apache-2.0Computer visionWebAssembly wasmworkerDispatching tasks to a WebWorker without `SharedArrayBuffers`.2,648MIT OR Apache-2.0 wasmworker-proc-macroDispatching tasks to a WebWorker without `SharedArrayBuffers`.1,322MIT OR Apache-2.0 wasmxHigh-performance, embeddable WebAssembly execution engine766Apache-2.0 WITH LLVM-exceptionWebAssembly wasmx-cliHigh-performance, embeddable WebAssembly execution engine531Apache-2.0 WITH LLVM-exceptionWebAssembly wasmywasmy, easily customize my wasm app!14,139Apache-2.0WebAssembly wasmy-abiABI of wasmy (easily customize my wasm app)19,657Apache-2.0WebAssembly wasmy-macrosmacros of wasmy (easily customize my wasm app)18,266Apache-2.0WebAssembly wasmy-vmvirtual machine of wasmy (easily customize my wasm app)19,451Apache-2.0WebAssembly wasmyonYet another way to combine rayon and wasm2,741MIT wasmyon-macro-supportProvides macro support for the main wasmyon crate3,505MIT waspa web assembly lisp programming language33,375MIT wasp-coreCore compiling logic of wasp2,735MIT wasperA Webassembly interpreter written in Rust without standard library4,829MIT wasps-with-bazookasDistributed load testing tool - like bees with machine guns, but way more power!2,079GPL-2.0Command line utilitiesDevelopment tools waspyA Python interpreter written in Rust, designed for WebAssembly.1,626MITCompilersDevelopment tools wassOptimal transport: Wasserstein distance, Sinkhorn algorithm, and Sinkhorn divergence1,237MIT OR Apache-2.0AlgorithmsMathematics wasserglasA fixed size thread-safe object pool with automatic reattachment3,151MIT/Apache-2.0ConcurrencyData structures wasserstein-agentsWasserstein distance, optimal transport, and agent distribution coordination20MITMathematicsScience wasserxrA **dynamic XR Engine** to help you stay in the **flow**154non-standard wasserxr-coreCore components and systems for the WasserXR engine31non-standard wasserxr-demoA demo for the WasserXR Game Engine18non-standard wasserxr-macrosProcedural macros for WasserXR components, systems, and assets.185non-standard wassetEmbed external assets into WASM modules.3,939MIT OR Apache-2.0 wassilywassily is both an API and set of tools for creating generative 2D art3,234MIT OR Apache-2.0Graphics wassily-algorithmsSpecialized rendering algorithms for wassily - a generative art library1,261MIT OR Apache-2.0AlgorithmsGraphics wassily-colorColor utilities and palette management for wassily generative art library1,793MIT OR Apache-2.0Graphics wassily-coreCore rendering infrastructure for wassily generative art library1,800MIT OR Apache-2.0Graphics wassily-effectsVisual effects and procedural textures for wassily - a generative art library1,270MIT OR Apache-2.0GraphicsMultimedia::Images wassily-geometryGeometric operations and spatial data structures for wassily - a generative art library1,455MIT OR Apache-2.0AlgorithmsGraphics wassily-noiseNoise utilities for wassily - a generative art library1,633MIT OR Apache-2.0GraphicsMultimedia::Images wassupAsk what's up, get a status back1,435MIT OR Apache-2.0 wastCustomizable Rust parsers for the WebAssembly Text formats WAT and WAST48,832,815Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT wast-encoderWAST encoder supporting wasi and wit components5,459MPL-2.0WebAssembly wast-parserNow unused crate, contact me if you'd like the name!12,152MIT/Apache-2.0 wast2jsonA wast2json implementation written in Rust2,986Apache-2.0WebAssembly wasteyardA Concurrent GC Arena1,282MIT wasui-memoryEasy way to create playground of WASI applications for web723MIT wasvyWASI-powered modding for the Bevy engine1,921MIT OR Apache-2.0Development toolsGame development wasvy_cliDevelopment tool for applications powered by Bevy and using the Wasvy modding framework57MIT OR Apache-2.0Development toolsGame development wasvy_macrosWASI-powered modding for the Bevy engine225MIT OR Apache-2.0Development toolsGame development wasvy_mockA library for mocking and testing wasvy-enabled Bevy Apps16MIT OR Apache-2.0Development toolsGame development watRust parser for the WebAssembly Text format, WAT33,730,300Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT wat-astWebAssembly text format (.wat) style-preserving syntax tree for generating human readable code.73,141GPL-3.0-or-later wat-fmtA pretty formatter for WebAssembly Text Format793MIT wat_formatterWebAssembly Text Format formatter.6,082MIT wat_parserWebAssembly Text Format concrete syntax tree parser.6,303MITParser implementationsText processing wat_serverWebAssembly Text Format language server.5,910MIT wat_serviceWebAssembly Text Format language service.7,007MIT wat_syntaxWebAssembly Text Format syntaxes.6,568MIT wataash_utilswataash's personal utilities2,888Apache-2.0 watasuRust SDK for Watasu1,525MIT OR Apache-2.0 watatuicozy whatsapp tui client34MIT OR Apache-2.0 wataxrateTool for getting tax information for addresses in WA State.7,546NCSA watchA synchronous message passing channel that only retains the most recent value.763,633MITConcurrencyData structures watch-and-commitA CLI tool that automatically stages and commits file changes using a filesystem watcher36MITCommand line utilitiesDevelopment tools watch-filesA dead simple file system watcher2,241MIT watch-pathProtocol-agnostic file watching across local, SSH, FTP, and HTTP159BSD-2-ClauseFilesystemNetwork programming watch-rsA Rust implementation of Linux's `watch`13,689non-standardCommand line utilities watch-together🦂 Synchronized video watching CLI — watch together, anywhere16MIT watch_dirMonitors a directory for file changes and delivers new UTF-8 content over a channel, with configurable read strategies.41MITFilesystemOperating systems watchableA watchable RwLock-like type that is compatible with both multi-threaded and async code.196,272MIT OR Apache-2.0AsynchronousConcurrency watchable-rsObservable values with change tracking and async support22MIT OR Apache-2.0AsynchronousConcurrency watchable-rs-deriveDerive macros for the watchable-rs crate76MIT OR Apache-2.0 watchbindA CLI menu for periodically watching a program's output and executing commands on its lines through keybindings24,858non-standard watchbird_apiA self-hosted and API-driven uptime monitor562non-standard watchbird_cliA self-hosted and API-driven uptime monitor293non-standard watchbird_clientA self-hosted and API-driven uptime monitor432non-standard watchbird_utilA self-hosted and API-driven uptime monitor276non-standard watchboiDEPRECATED: this project was renamed to 'floof'. If you are interested in the name 'watchboi', please contact me :)2,740MIT/Apache-2.0 watchcrabWatchCrab is a fast, secure, and easy-to-use Rust-based tool to monitor filesystem events across platforms. Effortlessly automate…6,061MIT watchcraftHappy hacking!1,055AGPL-3.0-only watchctlProcess supervisor with wait, watch, and retry phases79MITCommand line utilities watchdiffA small utility to diff watch output6,292BSD-3-ClauseCommand line utilities watchdiff-tuiA high-performance file watcher with beautiful TUI showing real-time diffs511MITCommand line utilitiesDevelopment tools watchdirAsync file system watching and scanning with glob pattern support42MIT watchdoRun commands whenever files in a directory change.4,411MIT watchdockTrigger a build inside a build container (e.g. using cargo-watch), then optionally run another command outside the container when…1,136MIT watchdogWatch filesystem for changes and then run a command10,471MIT watchdog-deviceLinux Watchdog API implementation.68,845MITAPI bindingsConfiguration watchdog_utils_IILibrary for user management for scout and watchdog236MIT watcherFile watcher2,679MIT OR Apache-2.0 watcher-knightA Rust CLI that validates code properties using Claude AI agents.39MIT watchersGit integrated file watcher927Apache-2.0 watchexecLibrary to execute commands in response to file modifications4,968,064Apache-2.0 watchexec-cliExecutes commands in response to file modifications654,612Apache-2.0Command line utilities watchexec-eventsWatchexec's event types3,438,295Apache-2.0 OR MIT watchexec-filterer-globsetWatchexec filterer component based on globset224,422Apache-2.0 watchexec-filterer-ignoreWatchexec filterer component for ignore files2,683,613Apache-2.0 watchexec-filterer-taggedWatchexec filterer component using tagged filters15,481Apache-2.0 watchexec-signalsWatchexec's signal types3,437,932Apache-2.0 OR MIT watchexec-simpleAn alternative to watchexec3,856MIT watchexec-supervisorWatchexec's process supervisor component1,933,684Apache-2.0 OR MIT watchfaceA smartwatch watchface implementation7,851GPL-3.0-or-later watchfileAn async utility trait to subscribe to file changes of a serializable file1,913MITAsynchronousFilesystem watchhnWatch hackernews for new comments and keywords1,643MITCommand line utilities watchitAn easy to use, cross-platform watcher for file changes1,390MITFilesystemOperating systems watchlineruns a command at an fixed interval1,481MITCommand line utilities watchliteUltra-lightweight single-binary server monitor with embedded web dashboard207MITCommand line utilitiesVisualization watchlogA command-line utility to help you see how a log is moving.149,915Apache-2.0 watchmakerA genetic algorithm implementation in Rust.4,102MIT watchmaker_vmA Rust implementation of a virtual machine for use with genetic algorithms.2,694MIT watchmanUtility for keeping processes running. Built for ssh tunnels and kubectl port forwarding.2,015MIT watchman_clienta client for the Watchman file watching service3,267,423MIT watchmenWatchmen is a daemon process manager that for you manage and keep your application online 24/71,448Apache-2.0Development toolsOperating systems watchmendWatchmen is a daemon process manager that for you manage and keep your application online 24/71,529Apache-2.0Development toolsOperating systems watchpower-apiWatchPower RestAPI Client for Rust5,528MIT watchpugCommission smart contract security audits from the aidd audit service24MITCommand line utilitiesDevelopment tools watchrExecute a command periodically. Like watch(1) command.4,896non-standard watchr_filesystemA simple file watcher that watches a list of paths and calls a callback when any of them change836MIT watchrsCrate that aids in monitoring and setting up alerts for AWS Batch Jobs.4,560MIT/Apache-2.0 watchsatA high-performance CDCL SAT engine with Two-Watched Literals in Rust.19non-standardAlgorithmsData structures watchserveWatchServe is a file watcher that queues requests.1,186MIT watchsoHot reload Solana programs1,636Apache-2.0Command line utilitiesDevelopment tools watchtowerWIP1,442MIT watchwomanA drop-in watchman replacement that doesn't eat your RAM.192MIT OR Apache-2.0