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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.

regress-renderOutput renderers for cargo-regress: terminal, JSON, GitHub Actions78MIT OR Apache-2.0 Development tools Visualization regressionRegression Analysis Toolkit1,630MIT regression-testA Rust library for regression testing652MIT Development tools Development tools::Testing regression-test-macrosHelper macros for the regression-test library451MIT Development tools Development tools::Testing regressionuRegression implementation with perpetual update functionaility10,610non-standard regrestA command-line tool for regression-/e2e-testing command-line tools389GPL-3.0-or-later Command line utilities Development tools::Testing regrootA modern, colorful directory tree viewer with glob pattern support894MIT Command line utilities Development tools regroupA crate for regrouping arrays.10,305MIT OR Apache-2.0 Data structures No standard library regsLow-level utilities for defining and accessing memory-mapped registers486non-standard Embedded development Hardware support regs-macrosLow-level utilities for defining and accessing memory-mapped registers482non-standard Embedded development Hardware support regshellInteractive REPL console for regent-sdk22Apache-2.0 regtestregtest is an easy to use interactive frontend for the regex crate.17,270GPL-3.0 regtest-block-explorerA CLI tool for indexing Bitcoin regtest blocks via RPC and serving a block explorer API.65MIT OR Apache-2.0 Command line utilities Cryptography::Cryptocurrencies regtest-utilA simple binary that starts a bitcoin regtest with funded wallets1,567MIT OR Apache-2.0 reguiRust Embedded GUI, Low-cast, Portable, and Fast GUI for Embedded Systems563Apache-2.0 regulaA LangGraph-style agentic orchestration framework in Rust100MIT OR Apache-2.0 regula-checkpointCheckpointing and persistence for REGULA framework286MIT OR Apache-2.0 regula-coreCore abstractions for REGULA agentic orchestration framework551MIT OR Apache-2.0 regula-llmLLM client integrations for REGULA framework195MIT OR Apache-2.0 regula-macrosProcedural macros for REGULA framework195MIT OR Apache-2.0 regula-runtimePregel-style execution engine for REGULA framework196MIT OR Apache-2.0 regularRegular Expression Manipulation and Analysis2,843Apache-2.0 regular-expressionA library for parsing, compiling, and executing regular expressions.2,544non-standard Parsing tools regular-expression-bootstrapA library for compiling and executing regular expressions.5,180non-standard Parsing tools regularize-filenameRegularize the names of your files according to your favourite naming convention1,632MIT regulusA simple, interpreted language with very simple syntax and zero dependencies5,390MIT OR Apache-2.0 Compilers regulus-dbA Simple API-only Database Application Written by Rust40MIT regviewOffline-viewer for registry files13,386GPL-3.0 regxmlSMPTE ST 2001-1 RegXML fragment builder and XSD schema generator for MXF metadata908MIT Encoding Multimedia regxml-dictSMPTE ST 335/395 register XML import, metadictionary, and definition resolver973MIT Encoding Multimedia rehashBuild cache CLI tool: wraps build commands, hashes inputs, caches outputs to skip redundant rebuilds13MIT rehash-coreCore types and traits for the rehash build cache: hashing, cache engine, metadata store, compression19MIT rehash-daemonBackground daemon for the rehash build cache: manages cache store, watches source files, IPC server14MIT rehashinghashmapA HashMap wrapper that shrinks to fit in small steps.7,715BSD-2-Clause rehearseEffect-aware operation planning with describe, dry-run, and execute modes.53Apache-2.0 Asynchronous Development tools rehearse-macrosProcedural macros for the rehearse operation planning crate.73Apache-2.0 rehexedAdjacency lists for hexasphere's icospheres.2,696MIT OR Apache-2.0 Algorithms Data structures rehlAdd highlighting to stdin for easier to read compiler output, or more readable log files.3,154GPL-2.0-or-later Command line utilities rehoboamStrict tmux repo launcher for the stock Neovim coding workspace1,311MIT Command line utilities Development tools rehostA tool I wrote to use in CTFs (TryHackMe, HackTheBox, etc.) to host tools to transfer to target machines.1,616MIT rehumanUnicode-safe text cleaning & typographic normalization for Rust233MIT Encoding Text processing reiThis Crate Has Been Retired; And I Have Since Shifted My Focus (Almost Entirely) Towards Game-Development. If Still Interested In…21,673CC0-1.0 rei-music-downloaderA simple youtube music downloader with metadata and lyrics from `lrclib.net`56MIT OR Apache-2.0 reicA compiler that just works1,592non-standard reifyWrite configuration files from templates using env variables9,448MIT reify-graphSafe Rc/Arc graph reification and reconstruction66MIT OR Apache-2.0 Data structures Rust patterns reify-reflectUnified reification and reflection ecosystem for Rust30MIT OR Apache-2.0 Data structures Rust patterns reify-reflect-coreCore Reflect/Reify traits and RuntimeValue types128MIT OR Apache-2.0 Rust patterns reifydbA modern, real-time database with streaming and analytical capabilities536Apache-2.0 reifydb-abiC ABI definitions for ReifyDB FFI operators2,501Apache-2.0 reifydb-allocatorFacade crate selecting a process-wide global allocator with shared-heap support for dlopened operator modules94Apache-2.0 reifydb-allocator-jemallocjemalloc backend for reifydb-allocator (Linux + macOS only)106Apache-2.0 reifydb-authAuthentication and authorization module for ReifyDB2,782Apache-2.0 reifydb-buildBuild utilities for ReifyDB target detection3,268Apache-2.0 reifydb-catalogDatabase catalog and metadata management for ReifyDB3,126Apache-2.0 reifydb-cdcChange Data Capture module for ReifyDB1,962Apache-2.0 reifydb-clientOfficial Rust client library for ReifyDB1,725Apache-2.0 reifydb-client-deriveDerive macros for ReifyDB client1,717Apache-2.0 reifydb-codecUnified encoding and decoding for all ReifyDB values, frames, rows, keys, and boundaries415Apache-2.0 reifydb-columnColumnar storage engine for ReifyDB.199Apache-2.0 reifydb-compressionColumn compression for storage and network in ReifyDB414Apache-2.0 reifydb-coreCore database interfaces and data structures for ReifyDB4,529Apache-2.0 reifydb-deriveDerive macros for ReifyDB588Apache-2.0 reifydb-engineQuery execution and processing engine for ReifyDB2,560Apache-2.0 reifydb-exportLogical export of ReifyDB catalog shapes and row data to RQL scripts68Apache-2.0 reifydb-extensionUnified extension loading for ReifyDB (FFI, WASM, native)1,233Apache-2.0 reifydb-flow-operator-abiC ABI definitions for ReifyDB FFI operators849MIT reifydb-flow-operator-sdkSDK for building flow operators in ReifyDB372AGPL-3.0-or-later reifydb-functionFunction interfaces for ReifyDB360Apache-2.0 reifydb-hashHash function implementations for ReifyDB1,189AGPL-3.0-or-later reifydb-macroMacros for ReifyDB451Apache-2.0 reifydb-macro-implImplementation for ReifyDB derive macros. Not for direct use - use reifydb-macro, reifydb-derive, or reifydb-client-derive…2,123Apache-2.0 reifydb-metricObservability primitives for ReifyDB — counters, gauges, histograms, and query statement accumulators1,937Apache-2.0 reifydb-metric-oldStorage and CDC metrics tracking for ReifyDB196Apache-2.0 reifydb-networkNetwork protocol handling for HTTP and WebSocket in ReifyDB485AGPL-3.0-or-later reifydb-policyPolicy engine for ReifyDB — compiles, caches, and evaluates security policies1,505Apache-2.0 reifydb-profilerAlways-on database profiler primitives: tracing layer, per-scope capture, dimension interning124Apache-2.0 reifydb-remote-proxyRemote subscription proxy for ReifyDB408Apache-2.0 reifydb-routineBuilt-in routines (functions and procedures) for ReifyDB1,300Apache-2.0 reifydb-rqlReifyDB Query Language (RQL) parser and AST2,919Apache-2.0 reifydb-runtimeRuntime infrastructure for ReifyDB3,074Apache-2.0 reifydb-sdkSDK for building ReifyDB operators, procedures, transforms and more1,773Apache-2.0 reifydb-sqlSQL to RQL transpiler259AGPL-3.0-or-later reifydb-sqliteShared SQLite configuration types used by ReifyDB storage subsystems1,162Apache-2.0 reifydb-storeRow-tier store layer: page model and residency traits400Apache-2.0 reifydb-store-columnColumn-oriented storage for analytical queries in ReifyDB363Apache-2.0 reifydb-store-multiMulti-version storage for OLTP operations with MVCC support2,211Apache-2.0 reifydb-store-singleSingle-version storage for OLTP operations without version history2,222Apache-2.0 reifydb-store-transactionTransaction storage for OLTP operations and recent data1,186AGPL-3.0-or-later reifydb-sub-adminAdmin subsystem for web-based administration218AGPL-3.0-or-later reifydb-sub-apiSubsystem API and interfaces for ReifyDB2,336Apache-2.0 reifydb-sub-columnStorage materialization subsystem for ReifyDB.87AGPL-3.0-or-later reifydb-sub-flowFlow subsystem for stream processing and data flows1,018Apache-2.0 reifydb-sub-loggingHigh-performance logging subsystem for ReifyDB221AGPL-3.0-or-later reifydb-sub-metricMetric collection subsystem for ReifyDB214Apache-2.0 reifydb-sub-profilerAlways-on profiling subsystem for ReifyDB: EventBus bridge, deep-dive store, histogram delivery87Apache-2.0 reifydb-sub-raftRaft consensus subsystem for ReifyDB681Apache-2.0 reifydb-sub-replicationCDC-based replication subsystem for ReifyDB239Apache-2.0 reifydb-sub-runtimeAlways-on runtime-metrics subsystem for ReifyDB96Apache-2.0 reifydb-sub-serverCommon infrastructure for server subsystems1,275Apache-2.0 reifydb-sub-server-adminAdmin web server subsystem for ReifyDB using Axum477Apache-2.0 reifydb-sub-server-grpcgRPC server subsystem for ReifyDB339Apache-2.0 reifydb-sub-server-httpHTTP server subsystem for ReifyDB using Axum472Apache-2.0 reifydb-sub-server-otelOpenTelemetry/Jaeger tracing subsystem for ReifyDB472Apache-2.0 reifydb-sub-server-wsWebSocket server subsystem for ReifyDB478Apache-2.0 reifydb-sub-storeGeneral storage subsystem for ReifyDB.64Apache-2.0 reifydb-sub-subscriptionEphemeral subscription subsystem for ReifyDB372Apache-2.0 reifydb-sub-taskTask execution subsystem for ReifyDB374Apache-2.0 reifydb-sub-tracingTracing subsystem for ReifyDB using tracing_subscriber483Apache-2.0 reifydb-sub-workerWorker pool subsystem for task scheduling and execution301AGPL-3.0-or-later reifydb-subscriptionProtocol-agnostic subscription consumption for ReifyDB698Apache-2.0 reifydb-testingTesting utilities and helpers for ReifyDB1,632Apache-2.0 reifydb-testing-macroProc-macro backing reifydb-testing's chaos_test! (internal testing utility)51Apache-2.0 reifydb-transactionTransaction management and concurrency control for ReifyDB3,262Apache-2.0 reifydb-typeCore type system and value representations for ReifyDB3,836Apache-2.0 reifydb-valueCore type system and value representations for ReifyDB973Apache-2.0 reifydb-wasi-bridgeWASI bridge for ReifyDB test suite213Apache-2.0 reifydb-wasmWebAssembly runtime for sandboxed execution in ReifyDB (backed by wasmtime)1,668Apache-2.0 reifydb-webassemblyWebAssembly bindings for ReifyDB query engine264Apache-2.0 reifydb-wire-formatRBCF (ReifyDB Binary Columnar Format) wire format encoder/decoder850Apache-2.0 reignOpinionated Fullstack Web Framework in Rust782MIT reihendorfRow-based DB built on top of sled. The name means "row-based village" in German, used to describe villages with farmland attached…1,503MIT/Apache-2.0 reiklandA serde-compatible Ruby marshal parser and deserializer133MIT OR Apache-2.0 Parser implementations Parsing tools reiknaA work in progress math library31,149MIT reimComplex number library11,822MIT reimgA simple CLI tool to resize images.755MIT reinrein 3D Rendering Library58MIT Game development Graphics rein-langA declarative language and runtime for AI agent orchestration24MIT Command line utilities Development tools reindaEasily embed and manage your assets for your web application to build standalone-executables. Offers filename hashing,…8,052MIT/Apache-2.0 Caching Filesystem reinda-coreInternal crate for `reinda`. Do not use this crate directly! See the main crate for more information.6,472MIT/Apache-2.0 reinda-macrosInternal crate for `reinda`. Do not use this crate directly! See the main crate for more information.8,783MIT/Apache-2.0 reindeerA small entity-based embedded database with a minimal no-SQL relationnal model, written in pure Rust.25,597MIT Database interfaces Filesystem reindeer-macrosA small entity-based embedded database with a minimal no-SQL relationnal model, written in pure Rust.3,196MIT Database interfaces Filesystem reindeer2REINDEER2: k-mer quantification in large collections of samples137non-standard reindexer-rsReindexer library for Rust5,730MIT Caching Database implementations reindexer-sysThe Rust FFI bindings of Reindexer6,862MIT Caching Database implementations reinfer-cliCommand line interface for Re:infer, the conversational data intelligence platform85,837Apache-2.0 reinfer-clientAPI client for Re:infer, the conversational data intelligence platform119,708Apache-2.0 reinforcexDeep Reinforcement Learning Framework2,129MIT Algorithms reingold-tilfordA Rust library for laying out aesthetically pleasing trees (the data structure, not the plant).2,328MIT Algorithms reinhardtA focused security scanner for Django applications74MIT reinhardt-adminAdmin panel functionality for Reinhardt framework8,969BSD-3-Clause reinhardt-admin-cliCommand-line tool for Reinhardt project management2,685BSD-3-Clause reinhardt-appsApplication registry and management for Reinhardt framework9,947BSD-3-Clause reinhardt-authAuthentication and authorization system11,377BSD-3-Clause Authentication Web programming reinhardt-auth-macrosProcedural macros for reinhardt-auth (guard!)6,594BSD-3-Clause reinhardt-cloudUmbrella crate for Reinhardt Cloud control plane components47BUSL-1.1 reinhardt-cloud-agentIn-cluster agent for Reinhardt Cloud workload operations50BUSL-1.1 reinhardt-cloud-cliCommand-line interface for Reinhardt Cloud deployments45BUSL-1.1 reinhardt-cloud-coreCore services and domain logic for Reinhardt Cloud112BUSL-1.1 reinhardt-cloud-grpcgRPC service implementations for Reinhardt Cloud59BUSL-1.1 reinhardt-cloud-k8sKubernetes resource helpers for Reinhardt Cloud75BUSL-1.1 reinhardt-cloud-operatorKubernetes operator for Reinhardt Cloud46BUSL-1.1 reinhardt-cloud-protoProtocol Buffer and gRPC type definitions for Reinhardt Cloud128BUSL-1.1 reinhardt-cloud-telemetryTelemetry and log streaming integrations for Reinhardt Cloud89BUSL-1.1 reinhardt-cloud-typesShared API, configuration, and Kubernetes types for Reinhardt Cloud142BUSL-1.1 reinhardt-commandsDjango-style management command framework for Reinhardt9,489BSD-3-Clause reinhardt-confConfiguration management framework for Reinhardt - Django-inspired settings with encryption and secrets management12,057BSD-3-Clause Configuration Web programming reinhardt-coreCore components for Reinhardt framework13,127BSD-3-Clause Web programming Web programming::HTTP server reinhardt-dbDjango-style database layer for Reinhardt framework11,682BSD-3-Clause Database interfaces Web programming reinhardt-db-macrosProcedural macros for Reinhardt database layer (NoSQL ODM)1,860BSD-3-Clause reinhardt-deeplinkMobile app deep linking with iOS Universal Links, Android App Links, and custom URL schemes5,303BSD-3-Clause reinhardt-dentdelionPlugin system for Reinhardt framework - easy to create, distribute, and install7,289BSD-3-Clause reinhardt-diDependency injection system for Reinhardt, inspired by FastAPI12,123BSD-3-Clause reinhardt-di-macrosProcedural macros for Reinhardt dependency injection8,703BSD-3-Clause reinhardt-dispatchURL dispatcher and request routing for Reinhardt framework5,520BSD-3-Clause reinhardt-event-catalogAuthoritative HTML and SVG event metadata for Reinhardt pages78BSD-3-Clause WebAssembly Web programming reinhardt-formatterFormatter for Reinhardt page!, form!, head!, and style! DSL macros2,958BSD-3-Clause reinhardt-formsForm handling and validation10,205BSD-3-Clause reinhardt-graphqlGraphQL API support for Reinhardt (facade crate)6,319BSD-3-Clause reinhardt-graphql-macrosProcedural macros for GraphQL schema generation6,516BSD-3-Clause reinhardt-grpcgRPC support for building RPC services6,435BSD-3-Clause reinhardt-grpc-macrosProcedural macros for Reinhardt gRPC DI integration5,443BSD-3-Clause reinhardt-httpHTTP primitives, request and response handling for Reinhardt12,717BSD-3-Clause Web programming Web programming::HTTP server reinhardt-i18nInternationalization and localization support6,335BSD-3-Clause reinhardt-macrosProcedural macros for Reinhardt framework12,820BSD-3-Clause reinhardt-mailEmail sending functionality with multiple backends10,847BSD-3-Clause reinhardt-manoucheDSL definitions for reinhardt-pages macro (Manouche Jazz DSL)10,265BSD-3-Clause Development tools::Procedural macro helpers Parser implementations reinhardt-middlewareMiddleware system for request/response processing pipeline11,261BSD-3-Clause Web programming Web programming::HTTP server reinhardt-openapiOpenAPI router wrapper for Reinhardt framework7,939BSD-3-Clause reinhardt-openapi-macrosProcedural macros for OpenAPI schema generation in Reinhardt10,709BSD-3-Clause Development tools Web programming reinhardt-pagesWASM-based frontend framework for Reinhardt with Django-like API10,335BSD-3-Clause WebAssembly Web programming reinhardt-pages-astAST definitions for reinhardt-pages macro DSLs (shared between proc-macros and formatters)10,185BSD-3-Clause Parser implementations WebAssembly reinhardt-pages-macrosProcedural macros for reinhardt-pages (WASM frontend framework)10,256BSD-3-Clause WebAssembly Web programming reinhardt-providersCloud provider integrations for Reinhardt400BSD-3-Clause API bindings Web programming reinhardt-querySQL query builder for Reinhardt framework11,097BSD-3-Clause reinhardt-query-macrosProcedural macros for reinhardt-query SQL identifier derivation11,074BSD-3-Clause reinhardt-restREST API framework aggregator for Reinhardt11,231BSD-3-Clause Web programming Web programming::HTTP server reinhardt-routerShared router trait surface for Reinhardt — breaks the circular dependency between reinhardt-urls and reinhardt-rest by exposing…5,173BSD-3-Clause API bindings Web programming reinhardt-routers-macrosProcedural macros for compile-time URL path validation in Reinhardt10,915BSD-3-Clause Development tools Web programming reinhardt-serverHTTP server implementation for Reinhardt framework10,612BSD-3-Clause reinhardt-shortcutsDjango-style shortcut functions for redirects, rendering, and 404 error handling8,664BSD-3-Clause reinhardt-storagesCloud storage backend abstraction for Reinhardt framework417MIT OR Apache-2.0 Filesystem Web programming reinhardt-streamingBackend-agnostic streaming abstraction with Kafka support3,000BSD-3-Clause reinhardt-tasksBackground task execution and scheduling6,439BSD-3-Clause reinhardt-testTesting utilities and helpers for Reinhardt framework9,127BSD-3-Clause reinhardt-testkitCore testing infrastructure for Reinhardt framework (no functional crate dependencies)7,991BSD-3-Clause reinhardt-testkit-macrosProcedural macros for reinhardt-testkit (e.g. with_di_overrides!)4,268BSD-3-Clause reinhardt-throttlingThrottling and rate limiting for Reinhardt framework11,017BSD-3-Clause reinhardt-urlsURL routing and proxy utilities for Reinhardt framework11,111BSD-3-Clause