All 305,250 crates, alphabetically

aspartial_deriveDerive macros for the aspartial crate. Don't use this crate directly1,897MIT aspasiaLibrary for parsing and working with subtitles15,3830BSDParser implementations aspdServer implementation for the Ark protocol.1,439CC0-1.0 aspd-rpcplaceholder for bark's aspd rpc client crate994CC0-1.0 aspd-rpc-clientRPC client for aspd1,442CC0-1.0 aspeakA simple text-to-speech client for Azure TTS API.43,106MIT aspectAn Aspect Toolkit for Rust6,279,219Apache-2.0 OR MITAlgorithmsConfiguration aspect-coreCore traits and types for aspect-oriented programming in Rust16,180MIT OR Apache-2.0Development toolsRust patterns aspect-fitScale up a rectangle to be as big as possible while keeping aspect ratio and fitting inside a container rectangle. Based on…1,653non-standard aspect-macrosProcedural macros for aspect-oriented programming in Rust15,987MIT OR Apache-2.0Development toolsRust patterns aspect-ratioScale a 2D rect to fit or cover one or more bounds, optionally preserving aspect-ratio721MITGraphicsGUI aspect-ratio-cliA simple Rust library to calculate aspect ratio4,017GPL-2.0Command line utilities aspect-reauthSync fresh Aspect credentials with your dev VM2,841Apache-2.0 aspect-runtimeRuntime utilities for aspect-oriented programming in Rust84MIT OR Apache-2.0Development toolsRust patterns aspect-stdStandard aspects library for aspect-rs AOP framework15,935MIT OR Apache-2.0Development toolsRust patterns aspect-wasm-instrumentA library for instrumenting WebAssembly binaries on Artela1,505MIT aspect-weaveAn Aspect Toolkit for Rust6,260,124Apache-2.0 OR MITAlgorithmsConfiguration aspect360This builds on the Ring360 to calculate aspect matches from target angles with orbs or an array of target aspect/orb pairs.10,440GPL-2.0-or-later WITH Bison-exception-2.2Mathematics aspenAspen, a VB6 tool for parsing and analyzing VB6 code, in the spirit of cargo check, cargo fmt, etc.14,352non-standardDevelopment toolsParser implementations aspen-engineSimple Application engine5,740MIT aspen-loaderSimple multi-threaded asset loader for the aspen engine3,317MIT aspen-rendererRendering library for the Aspen engine5,313MIT aspen-toolbox用于各种任务的有用开发工具1,290MIT aspengA simple game engine built around the ECS architecture69non-standard aspensAspens crosschain trading SDK151MIT aspentoolSSH Client38,806MIT asphaltUpload and reference Roblox assets in code40,143MIT asphereBinary for simulating spherically symmetric critical phenomena20MIT OR Apache-2.0 asphyxiaA fast and efficient network scanner written in Rust119MITCommand line utilitiesNetwork programming aspiesolutions_corecore types used by many crates24,380MIT aspiesolutions_entityDatabase Definitions31,718MIT aspiesolutions_errorThe error library for aspiesolutions4,327MIT aspiesolutions_formsthe forms used for web server interaction15,836MIT aspireRust bindings for Clingo372MIT aspire-deriveDerive macros for aspire439MIT aspirinAPI models for BattleSnakes212MIT aspirinaA modular neural network library with matrix operations and backpropagation814MIT aspixLibrary Rust yang powerful untuk mengkonversi gambar menjadi ASCII art906MITCommand line utilitiesMultimedia::Images asplA Simple Programming Language.6,693MIT aspmatchparse and write match files (image to image tie points)1,828MIT OR Apache-2.0 asportAn implementation of ASPORT protocol.3,019GPL-3.0-or-laterNetwork programming asport-clientA simple Asport client implementation.4,262GPL-3.0-or-laterNetwork programming asport-commonShared utilities leveraged by asport client and server.181GPL-3.0-or-later asport-hyphae-handshakeNoise protocol framework handshakes for QUIC326MIT OR Apache-2.0AuthenticationCryptography asport-quinnA wrapped quinn to implement ASPORT protocol.3,793GPL-3.0-or-laterNetwork programming asport-quinn-hyphaeNoise protocol framework handshakes for the Quinn QUIC library256MIT OR Apache-2.0AuthenticationCryptography asport-serverA simple Asport server implementation.4,593GPL-3.0-or-laterNetwork programming asposepdfAspose.PDF for Rust via C++ is a powerful toolkit that allows developers to manipulate PDF files directly and helps do various…999MITAPI bindingsEncoding aspotifyDeprecated in favour of rspotify34,788MIT OR Apache-2.0API bindingsAsynchronous asprimCast any primitive numeric type to any other using `as` with the AsPrim trait.9,572MIT/Apache-2.0 asqlAsync SQL1,050MIT asqliteSQLite wrapper using async Rust2,861MIT OR Apache-2.0Database interfaces asrASR31MIT asr-dataASR audio/transcript data model with SQLite storage and optional Python bindings15MITMultimedia::AudioScience asr-dedupDeduplication strategies for chunked/sliding-window ASR transcription126MITText processing asr-featuresASR feature extraction and cache warming utilities300MIT asrchAgent-safe bounded code search CLI34MIT OR Apache-2.0Command line utilitiesDevelopment tools asrefmutTrait which combines `AsRef` and `AsMut`1,813MITNo standard library asrpcA brief description of your crate's functionality19MITDevelopment toolsParsing tools asrySans-I/O cut/batch/whisper/align state machine for speech-to-text indexing pipelines16MIT OR Apache-2.0Multimedia::AudioScience assUseless crate for casting6,498MIT ass-cliA small CLI tool for working with Aptoma Smooth Storage5,106MIT ass-coreHigh-performance ASS subtitle format parser and analyzer1,413MITMultimediaParsing tools ass-editorHigh-performance, ergonomic editor layer for ASS subtitles682MITMultimedia::VideoParser implementations ass-fontExtract fonts from ASS subtitles.122MIT OR Apache-2.0 ass-lspLanguage Server Protocol implementation for Advanced SubStation Alpha (ASS/SSA) subtitle format523MITDevelopment toolsText editors ass-rendererHigh-performance ASS subtitle renderer with modular backends19MIT OR Apache-2.0GraphicsMultimedia::Video ass-rsA library for working with Aptoma Smooth Storage10,122MIT ass_parserA parser for editing creating and saving .ass files.12,854MIT OR Apache-2.0 assayA super powered testing macro for Rust75,135MPL-2.0Development toolsDevelopment tools::Testing assay-adapter-apiProtocol adapter API contracts for Assay evidence translation.988MIT assay-authAuthentication, OIDC (client + provider), passkey, Argon2, JWT, Biscuit capability tokens, session management, and Zanzibar-style…450Apache-2.0AsynchronousAuthentication assay-canonicalDeterministic canonicalization: RFC 8785 (JCS) bytes, sha256 content-addressed IDs, and schema-aware set-path normalization for…240MIT assay-cliPolicy-as-code gate for MCP agent tool calls, with verifiable evidence and Linux kernel enforcement.1,166MITCommand line utilitiesDevelopment tools::Testing assay-commonCommon shared types and utilities for the Assay framework.3,104MIT assay-coreHigh-performance evaluation framework for LLM agents (Core)2,870MIT assay-dashboardDashboard (HTML + JS + CSS) for assay-workflow and assay-engine. Feature-gated per view set.318Apache-2.0Web programming::HTTP server assay-domainShared workflow domain model (types + store traits) for the assay workflow engine, auth layer, and dashboard.514Apache-2.0AsynchronousDatabase interfaces assay-engineStandalone workflow + auth + dashboard HTTP server on PostgreSQL 18 + SQLite. Embeddable as a library, or run as a binary.363Apache-2.0AsynchronousDatabase interfaces assay-evidenceTamper-evident, cryptographically verifiable evidence bundles for the Assay compliance framework.2,039MIT assay-luaGeneral-purpose enhanced Lua runtime. Batteries-included scripting, automation, and web services.1,346Apache-2.0Command line utilitiesDevelopment tools::Testing assay-mcp-serverMCP server integration for Assay1,752MIT assay-metricsMetrics library for Assay2,356MIT assay-monitorUserspace monitor for Assay eBPF programs1,481MIT assay-policyPolicy types and compilation logic for Assay1,790MIT assay-proc-macroA super powered testing macro for Rust73,434MPL-2.0Development toolsDevelopment tools::Testing assay-registryPack registry client for remote pack distribution (SPEC-Pack-Registry-v1)876MIT assay-runner-coreInternal/experimental substrate for Assay measured-run workflows. Runner orchestration, archive assembly, and layer normalizers…592MIT assay-runner-linuxInternal/experimental substrate for Assay measured-run workflows. Linux-only platform adapter for the Assay-Runner candidate;…565MIT assay-runner-schemaInternal/experimental substrate for Assay measured-run workflows. Versioned schema types and constants for the Assay-Runner v0…704MIT assay-runner-spikeInternal/experimental substrate for Assay measured-run workflows. Compatibility wrapper crate that re-exports the Assay-Runner…36MIT assay-simSimulation harness for Assay (internal, API unstable)1,225MIT assay-vaultVault module for assay-engine: KV v2, transit, dynamic credentials, Bitwarden-aligned vaults + collections + items + folders,…289Apache-2.0AsynchronousCryptography assay-workflowDurable workflow engine with REST+SSE API on PostgreSQL 18 and SQLite backends. Embeddable library or standalone server (via…494Apache-2.0AsynchronousDatabase interfaces assayerA static (compile-time) validation library for Rust5,594Apache-2.0/MIT assayistAssayist orchestrator: run benchmark defs, capture, assemble AssayRuns, gate13Apache-2.0Development tools::ProfilingDevelopment tools::Testing assayist-capture-residentSnapshot residency capture (mincore on the mem file) for Assayist13Apache-2.0Development tools::Profiling assayist-contractTyped producer-side model of the Assayist metric contract17Apache-2.0Development tools::ProfilingDevelopment tools::Testing assayist-gateDecision gate for Assayist: permutation A/B, longitudinal drift, subsystem triad13Apache-2.0Development tools::ProfilingDevelopment tools::Testing assayist-otlpOTLP export/import for the Assayist contract16Apache-2.0Development tools::Profiling assemassem857MPL-2.0 assemblage_broadcastPublish-and-Subscribe Service for AssemblageDB1,861AGPL-3.0 assemblage_dbDistributed Document/Graph DB for Connected and Overlapping Pages2,701AGPL-3.0 assemblage_kvVersioned and Transactional KV Store for Native and Wasm Targets3,703AGPL-3.0 assemblage_viewLinearized View Model and Bindings for AssemblageDB1,872AGPL-3.0 assembleassemble following a set of defined instructions in a YAML file4,939BSD-3-ClauseCommand line utilities assemble-buildProvides build script data for assemble. Not really used right now.6,904MIT OR Apache-2.0Development toolsDevelopment tools::Build Utils assemble-coreThe core crate of the assemble-rs package9,031MIT OR Apache-2.0Development tools assemble-execThe executable for assemble4,398MIT OR Apache-2.0Command line utilitiesDevelopment tools assemble-freightThe main executor for the assemble-rs project.6,447MIT OR Apache-2.0Development tools assemble-jsused for running assemble with js backend2,357MIT OR Apache-2.0Development tools assemble-macrosMacros for assemble. shouldn't be used by itself. Instead use assemble-core8,813MIT OR Apache-2.0Development tools assemble-rustAn assemble-rs plugin for building rust projects4,992MIT OR Apache-2.0Development tools assemble-stdThe standard library for assemble6,189MIT OR Apache-2.0Development tools assemble_appBootstrap library for https://assemble.app50,799Apache-2.0 assemblerAn efficient run-time assembler for X86-64 code that is intended to be immediately executed58,959AGPL-3.0EncodingHardware support assemblistDefine your builder patterns as you use them.3,028MITRust patterns assemblyLibrary for files/resources for LU related software23,445MIT assembly-coreCore functionality of the assembly crate15,517MIT assembly-dataDatabase module for the assembly crate17,457MIT assembly-fdbTools to use an create FDB files2,163MIT OR Apache-2.0 assembly-fdb-coreComponents to build FDB parsers and writers4,143MIT OR Apache-2.0 assembly-mapsMap content module for the assembly crate5,912MIT assembly-packPackages module for the assembly crate21,212MIT assembly-theoryOpen, reproducible calculation of assembly indices2,000MIT OR Apache-2.0 assembly-xmlXML formats used in the game LEGO® Universe3,316MPL-2.0 assemblylift-awslambda-guestAssemblyLift AWS Lambda WASM guest library12,223non-standard assemblylift-awslambda-hostAssemblyLift AWS Lambda runtime12,252non-standard assemblylift-awslambda-iomodAssemblyLift AWS Lambda IOmod host library4,825non-standard assemblylift-awslambda-iomod-guestAssemblyLift AWS Lambda IOmod guest library3,400non-standard assemblylift-cliThe AssemblyLift Command Line Interface39,522non-standard assemblylift-coreAssemblyLift core library19,334non-standard assemblylift-core-entityAssemblyLift core entity library1,854non-standard assemblylift-core-eventAssemblyLift core event library4,220non-standard assemblylift-core-event-commonAssemblyLift core event common library4,723non-standard assemblylift-core-event-guestAssemblyLift core event WASM guest library4,267non-standard assemblylift-core-guestAssemblyLift core WASM guest library8,203non-standard assemblylift-core-guest-macrosProcedural macros for assemblylift-core-guest3,892non-standard assemblylift-core-ioAssemblyLift core event library4,589non-standard assemblylift-core-io-commonAssemblyLift core event common library14,680non-standard assemblylift-core-io-guestAssemblyLift core event WASM guest library19,979non-standard assemblylift-core-iomodAssemblyLift core IOmod library17,296non-standard assemblylift-core-iomod-guestAssemblyLift core IOmod guest library13,696non-standard assemblylift-iomod-cryptoAssemblyLift Crypto IOmod (host)3,592non-standard assemblylift-iomod-crypto-guestAssemblyLift Crypto IOmod (guest)4,874non-standard assemblylift-iomod-dynamodbAssemblyLift DynamoDB IOmod (host)8,006non-standard assemblylift-iomod-dynamodb-guestAssemblyLift DynamoDB IOmod (guest)15,775non-standard assemblylift-iomod-http-guestAssemblyLift HTTP IOmod guest lib5,784non-standard assemblylift-iomod-lambda-guestAssemblyLift AWS Lambda IOmod guest lib1,867non-standard assemblylift-iomod-s3-guestAssemblyLift AWS S3 IOmod guest lib1,844non-standard assemblylift-iomod-secretsmanager-guestAssemblyLift AWS SecretsManager IOmod guest lib1,783non-standard assemblyline-clientA client for the Assemblyline malware analysis platform.17,025MIT assemblyline-filestoreA blob storage layer for the Assemblyline malware analysis platform.1,632MIT assemblyline-markingsLibrary for using access control strings with the Assemblyline malware analysis platform.17,461MIT assemblyline-modelsData models for the Assemblyline malware analysis platform.35,817MIT assemblyline-serverServer package for the Assemblyline malware analysis platform.811MIT assembunny_plusA compiler/interpreter of a language that's extended from the Assembunny concept introduced in Advent of Code 20164,184Unlicense assentLightweight wrapper for Discord API1,834MIT OR Apache-2.0 asserhttpFluent http response assertions88,549Apache-2.0API bindingsDevelopment tools::Testing assertThe package provides assertions for testing.270,637Apache-2.0/MITDevelopment tools::Testing assert-be-closeA simple function to assert that two numbers are close to each other.5,752MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Testing assert-callA tool for testing that ensures code parts are called as expected.34,610MIT OR Apache-2.0Development tools::Testing assert-cmpConvenient assertion macros that print the failed expressions and their evaluated values83,733MITDevelopment toolsNo standard library assert-envA simple runtime assertion utility for environment variables.97BSD-3-ClauseCommand line utilitiesDevelopment tools assert-eq-floatThis crate provides the `assert_eq_float!` macros that support floats.3,290,415MITNo standard libraryRust patterns assert-graph-isoTest utility for checking if two graphs are isomorphic.1,882Apache-2.0 OR MIT assert-implMacro for static assert types implement a trait or not509,118MIT assert-impl-traitProvides a macro to assert that a type implements a trait.442MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Testing assert-json-diffEasily compare two JSON values and get great output118,820,228MITDevelopment tools assert-json-sameEasily compare two JSON values and get great output588MITDevelopment tools assert-luximproved assert macros1,902MIT OR Apache-2.0Operating systems assert-migrator-reversibleFor testing if Sea Orm Migrators are reversible15,069MITDatabase interfacesDevelopment tools::Testing assert-nextimproved assert macros1,887MIT OR Apache-2.0 assert-no-alloc-patchedCustom Rust allocator allowing to monitor memory allocations for a thread. Aborts or prints a warning if allocating although…681BSD-1-ClauseDevelopment tools::Debugging assert-notA simple, no_std compatible Rust macro that works like the inverse of assert! - passes when condition is false865MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Testing assert-not-modifiedMacro which, given a variable and a block of code, executes the block of code and checks that the variable has not changed.6,145GPL-3.0Development tools::Testing assert-offsetDerive macro for asserting the memory offset of fields in a struct.2,830MIT assert-or-blessDEPRECATED: Use https://crates.io/crates/snapshot-testing instead.1,264Unlicense assert-orderAssert the order of Rust enum variants.108MIT assert-order-deriveDerive macros for `assert-order`.165MIT assert-panicAssert that a panic happens, and optionally what (kind of) panic happens186,958MIT OR Apache-2.0Development tools::Testing assert-parseThe util to assert macro parsing.9,799MIT assert-parse-coreThe core for 'assert-parse'4,322MIT assert-parse-register-assert-macroThe util macro for 'assert-parse'9,117MIT assert-rsAn assertion library that uses types and data to fail tests instead of panicking.26MIT assert-size-deriveCompile time type size assertion attribute macro29MITDevelopment toolsRust patterns assert-strMacros for asserting multiline strings38,667Apache-2.0 OR MITDevelopment tools::Testing assert-structA procedural macro for ergonomic structural assertions in tests20,355MITDevelopment toolsDevelopment tools::Testing assert-struct-macrosProcedural macro implementation for assert-struct20,568MIT assert-textthe testing macro tools.15,161MIT OR Apache-2.0Development tools::TestingText processing assert-tokenstreams-eqA utility for comparing token streams: applies rustfmt for consistent formatting and leverages pretty_assertions to clearly…32,156MIT OR Apache-2.0Development toolsDevelopment tools::Procedural macro helpers assert-type-eqMacro to assert types across potentially different crate versions are compatible2,365,113Apache-2.0 assert-uncheckedUnsafe assertions that allow for optimizations in release mode.3,056,578MITDevelopment tools::DebuggingNo standard library assert-unmovedA type that asserts that the underlying type is not moved after being pinned and mutably accessed.10,401Apache-2.0 OR MITDevelopment tools::Testing assert-withinMacro for testing that (generic) floating point numbers are within some tolerance3,370MIT OR Apache-2.0Development tools assert2assert!(...) and check!(...) macros inspired by Catch2, now with diffs!3,339,804BSD-2-ClauseDevelopment tools::DebuggingDevelopment tools::Testing assert2-macrosprocedural macros for assert23,321,266BSD-2-Clause assert2ifyA one-liner solution to replace assertions in tests by the expressive assertions of the assert2 crate1,919BSD-2-ClauseDevelopment tools::DebuggingDevelopment tools::Testing assert2ify-macrosMacros for the assert2ify crate2,691BSD-2-ClauseDevelopment tools::DebuggingDevelopment tools::Testing assert4rsFluent assertions for Rust2,044MIT