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.

requeuestQueue for HTTP requests using postgres as backing store9,723AGPL-3.0-only requiemActor framework for Rust3,340MIT/Apache-2.0AsynchronousNetwork programming requiem-codecUtilities for encoding and decoding frames11,815MIT/Apache-2.0AsynchronousNetwork programming requiem-connectActix connect - tcp connector service9,444MIT/Apache-2.0AsynchronousNetwork programming requiem-corsCross-origin resource sharing (CORS) for Actix applications.1,712MIT/Apache-2.0 requiem-filesStatic files support for actix web.1,742MIT/Apache-2.0AsynchronousWeb programming::HTTP server requiem-framedActix framed app server1,734MIT/Apache-2.0AsynchronousNetwork programming requiem-httpActix http primitives9,827MIT/Apache-2.0AsynchronousNetwork programming requiem-http-testActix http test server1,698MIT/Apache-2.0AsynchronousNetwork programming requiem-identityIdentity service for actix web framework.1,700MIT/Apache-2.0 requiem-ioframeActix framed service1,731MIT/Apache-2.0AsynchronousNetwork programming requiem-macrosActix runtime macros13,243MIT/Apache-2.0AsynchronousNetwork programming requiem-multipartMultipart support for actix web framework.1,761MIT/Apache-2.0 requiem-routerPath router8,259MIT/Apache-2.0 requiem-rtActix runtime12,825MIT/Apache-2.0AsynchronousNetwork programming requiem-serverActix server - General purpose tcp server10,343MIT/Apache-2.0AsynchronousNetwork programming requiem-serviceActix service12,318MIT/Apache-2.0AsynchronousNetwork programming requiem-sessionSession for actix web framework.1,727MIT/Apache-2.0 requiem-testingActix testing utils8,891MIT/Apache-2.0AsynchronousNetwork programming requiem-threadpoolActix thread pool for sync code13,255MIT/Apache-2.0AsynchronousNetwork programming requiem-tlsActix tls services8,416MIT/Apache-2.0AsynchronousNetwork programming requiem-tracingSupport for tokio tracing with Actix services1,745MIT/Apache-2.0AsynchronousNetwork programming requiem-utilsActix utils - various actix net related services11,438MIT/Apache-2.0AsynchronousNetwork programming requiem-wcActix http client.9,142MIT/Apache-2.0AsynchronousNetwork programming requiem-webActix web is a simple, pragmatic and extremely fast web framework for Rust.9,708MIT/Apache-2.0AsynchronousNetwork programming requiem-web-actorsActix actors support for actix web framework.1,706MIT/Apache-2.0 requiem-web-codegenActix web proc macros9,017MIT/Apache-2.0 require_lifetimesA proc-macro to force rust authors to write lifetimes in function signatures.15,813MIT OR Apache-2.0 require_rsBinanry finder.1,478non-standard require_unsafe_in_bodyMake `unsafe fn` still require `unsafe` blocks in the function's body363,233MITRust patterns requirementsPython PIP requirements.txt parser13,648MITParser implementations requirements-managerPlain-text requirements management tool550MITCommand line utilitiesDevelopment tools requirements-txt-generatorAutomatically generate a requirement.txt file for Python projects3,236MITCommand line utilitiesNetwork programming reqwA small helper to handle reqwest results more intuitively562MIT OR Apache-2.0Web programming::HTTP client reqwasmHTTP requests library for WASM Apps453,840MIT OR Apache-2.0API bindingsWebAssembly reqwesthigher level HTTP client library599,575,303MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-authAuthorization middleware for reqwest.17,966MIT reqwest-builderA builder for reqwest requests with support for custom headers, query parameters, and body content.3,053MITNetwork programmingWeb programming::HTTP client reqwest-builder-deriveDerive macros for reqwest-builder2,207MIT reqwest-builder-retryLINE API library.5,629MIT reqwest-cachereqwest-middleware based in-memory HTTP caching middleware6,310AGPL-3.0-onlyCachingNetwork programming reqwest-chainApply custom criteria to any reqwest response, deciding when and how to retry.118,223MIT reqwest-client-bearer-authA crate to add a more ergonomic way to add bearer authentication to reqwest clients340MIT OR Apache-2.0 reqwest-client-gpui-unofficialUnofficial release of Zed's reqwest_client crate503Apache-2.0 reqwest-conditional-middlewareA middleware wrapper that enables (or disables) a wrapped Reqwest middleware on a per-request basis759,808MIT reqwest-connect-rpcConnect RPC client library for reqwest based clients37Apache-2.0 reqwest-crossWrapper around reqwest for use in both native and wasm18,195MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-datadog-tracingTracing middleware for reqwest that uses the current Opentelemetry Context.464Apache-2.0Web programming::HTTP client reqwest-driveHigh-performance caching, throttling, and backoff middleware for reqwest, with a single-file storage container.7,337MIT OR Apache-2.0AsynchronousCaching reqwest-enumTyped enum HTTP API for reqwest.12,966MIT OR Apache-2.0Web programming::HTTP client reqwest-env-proxyHelper to let reqwest use proxy from the env `all_proxy`15,225Apache-2.0 reqwest-errorTemp placeholder1,263MIT reqwest-eventsourceHelper to build an Eventsource using reqwest9,646,551MIT OR Apache-2.0AsynchronousNo standard library reqwest-eventsource-wasiHelper to build an Eventsource using reqwest4,211MIT OR Apache-2.0AsynchronousNo standard library reqwest-extraExtra utilities for reqwest276MIT OR Apache-2.0Web programming::HTTP client reqwest-fileUse web resources like regular async files3,942MIT OR Apache-2.0 reqwest-graphqlMinimal GraphQL client for Rust20,589MIT reqwest-h3hitdns fork of higher level HTTP client library5,840MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-headerHeader info parser for reqwest crate1,527MITDevelopment tools reqwest-hickory-resolverhickory resolver support for reqwest183,342Apache-2.0Command line utilities reqwest-impersonateAn intuitive and robust Rust HTTP/WebSocket Client featuring TLS/JA3/JA4/HTTP2 fingerprint impersonate101,245MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-kerberosKerberos/SPNEGO authentication for reqwest via Windows SSPI or Linux GSSAPI45MITAuthenticationWeb programming::HTTP client reqwest-lbThe reqwest load balancer middleware5,017non-standard reqwest-leaky-bucketLeaky-bucket rate limit middleware for reqwest.177,958MITWeb programming::HTTP client reqwest-management-pooladvanced reqwest pool management to improve utilization per client.84MIT reqwest-maybe-middlewareWrapper over reqwest and reqwest-middleware to provide compatibility for either10,063Apache-2.0 OR MIT reqwest-metricsMetrics.rs integration for reqwest105,377MIT reqwest-middlewareWrapper around reqwest to allow for client middleware chains.69,774,346MIT OR Apache-2.0Web programming::HTTP client reqwest-middleware-cacheA caching middleware for reqwest15,784Apache-2.0CachingWeb programming::HTTP client reqwest-middleware-forkWrapper around reqwest to allow for client middleware chains.1,235MIT OR Apache-2.0Web programming::HTTP client reqwest-middleware-wasiWrapper around reqwest to allow for client middleware chains.3,624MIT OR Apache-2.0Web programming::HTTP client reqwest-negotiateKerberos/SPNEGO Negotiate authentication for reqwest74MIT OR Apache-2.0AuthenticationWeb programming::HTTP client reqwest-netrcnetrc support for Rust with support for reqwest207,443MITNetwork programming reqwest-oauthOAuth support for Rust reqwest library1,340Apache-2.0API bindingsWeb programming reqwest-oauth1Add OAuth1 signature to reqwest with oauth1-request.71,017MIT OR Apache-2.0AuthenticationWeb programming::HTTP client reqwest-partial-retryWrapper around reqwest to allow for easy partial retries3,102MIT OR Apache-2.0Web programming::HTTP client reqwest-patchedhigher level HTTP client library1,840MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-politenessReqwest middleware to enforce delay between requests54MIT OR Apache-2.0Web programming::HTTP client reqwest-pretty-jsonEasy way to emit prettified JSON body via reqwest::RequestBuilder31,340Apache-2.0 OR MITValue formattingWeb programming::HTTP client reqwest-protobufProtocol buffer support for Reqwest1,645MIT OR Apache-2.0EncodingWeb programming::HTTP client reqwest-proxy-poolproxy pool middleware for reqwest1,561MIT OR Apache-2.0Web programming::HTTP client reqwest-rate-limitRate-limit aware request helpers and optional wrapper ergonomics for reqwest.79Apache-2.0 reqwest-ratelimitRate-limit middleware for reqwest.194,816MITWeb programming::HTTP client reqwest-record-replayClient-side HTTP record/replay for reqwest-middleware14MIT OR Apache-2.0 reqwest-replayA library for caching HTTP responses466MITWeb programming::HTTP client reqwest-response-extExtension trait for reqwest::{blocking}::Response1,530Apache-2.0 OR MIT reqwest-restAn opinionated utility to help with creating (and configuring) one-off idiomatic REST API clients.358MIT reqwest-retryRetry middleware for reqwest.42,488,203MIT OR Apache-2.0Web programming::HTTP client reqwest-retry-afterRetry-After header support for reqwest105,833MITAsynchronousParsing tools reqwest-retry-wasiRetry middleware for reqwest.1,934MIT OR Apache-2.0Web programming::HTTP client reqwest-rewirereqwest-rewire is a lightweight wrapper around reqwest that transparently rewrites outgoing request URLs based on user-defined…42MITDevelopment tools::TestingNetwork programming reqwest-scraperWeb scraping integration with reqwest23,518MIT reqwest-scraper-macrosWeb scraping integration with reqwest15,309MIT reqwest-spiderhigher level HTTP client library3,014MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-sseLightweight SSE client over reqwest81,292MIT reqwest-ssrf-guardMitigate SSRF and DNS rebinding in reqwest by filtering DNS results, redirects, and URL literals495MITNetwork programmingWeb programming reqwest-streamsHTTP body streaming support for reqwest: JSON/CSV/Protobuf and others208,070Apache-2.0AsynchronousNetwork programming reqwest-torhigher level HTTP client library. Forked with tor support568MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-tracingOpentracing middleware for reqwest.27,247,611MIT OR Apache-2.0Web programming::HTTP client reqwest-tracing-wasiOpentracing middleware for reqwest.1,837MIT OR Apache-2.0Web programming::HTTP client reqwest-traitsTraits for reqwest to allow injecting a custom http client like reqwest_middleware::ClientWithMiddleware13,745MITWeb programming::HTTP client reqwest-vcapra1-add-cookieshigher level HTTP client library8,114MIT/Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-vcrRecord-and-replay HTTP testing for requests7,325Apache-2.0Web programming::HTTP client reqwest-wasmhigher level HTTP client library93,846MIT/Apache-2.0WebAssemblyWeb programming::HTTP client reqwest-wasm-extFixes for reqwest on wasm2,843Apache-2.0WebAssemblyWeb programming reqwest-websocketWebSocket connections with reqwest1,236,351MITNetwork programmingWeb programming::HTTP client reqwest-websocket-julien-cpsnWebSocket connections with reqwest1,590MITNetwork programmingWeb programming::HTTP client reqwest_clientA helper crate for creating reqwest::Client with rotating proxy support from environment variables. | 一个辅助…4,868MulanPSL-2.0 reqwest_cookie_storeA simple crate providing an implementation of the `reqwest::cookie::CookieStore` trait for `cookie_store::CookieStore`1,155,801MIT/Apache-2.0Web programmingWeb programming::HTTP client reqwest_davAn async webdav client with tokio and reqwest985,989MIT OR Apache-2.0 reqwest_inspect_jsonReqwest extention for json response tracing14,573Apache-2.0 OR MITWeb programming::HTTP client reqwest_mockProvides a mockable reqwest-like HTTP client.2,473,713Apache-2.0 reqwest_proxySeamlessly proxy reqwest traffic through Shadowsocks, Hysteria2, and more. / 通过 Shadowsocks、Hysteria2 等多种协议无缝代理 reqwest 流量。1,535MulanPSL-2.0 reqwest_resumeWrapper that uses the `Range` HTTP header to resume get requests. It's a thin wrapper around `reqwest`. It's a work in progress…13,895MIT OR Apache-2.0Development toolsEncoding reqwest_ss_proxyA reqwest middleware for proxying requests through a Shadowsocks server. 一个通过 Shadowsocks 服务器代理请求的 reqwest 中间件。2,536MulanPSL-2.0 reqwest_wasihigher level HTTP client library34,003MIT OR Apache-2.0WebAssemblyWeb programming::HTTP client reqwewReqwest effortless wrapper.15,847GPL-3.0Web programming::HTTP client reqwlessHTTP client for embedded devices119,344Apache-2.0 reqxRust HTTP transport client for API SDK libraries with retry, timeout, idempotency, proxy, and pluggable TLS backends75,007MITAPI bindingsNetwork programming rerA rez implementation in rust1,552non-standard rer-packageFast static parser for the solver-relevant fields of a rez package.py.18non-standard rer-resolverA faithful Rust port of rez's phase-based package solver.157non-standard rer-versionVersion and range types matching rez's alphanumeric versioning.214non-standard rerankFast rank fusion algorithms for hybrid search (RRF, CombMNZ, Borda)28MIT OR Apache-2.0AlgorithmsData structures rerank-blendBlend N RAG reranker score streams (dense, BM25, cross-encoder) with configurable weights and rank-aware normalization. Zero deps.18MIT OR Apache-2.0AlgorithmsScience rerastAn AST (abstract syntax tree) based search replace tool for code written in Rust129,150Apache-2.0Development toolsDevelopment tools::Cargo plugins rerast_macrosMacros for use in Rerast rules5,720Apache-2.0 reratuiA modern, reactive TUI framework for Rust with React-inspired hooks and components, powered by ratatui159MIT OR Apache-2.0AsynchronousCommand-line interface reratui-coreCore types, traits, and virtual DOM implementation for the Reratui reactive TUI framework540MIT OR Apache-2.0AsynchronousCommand-line interface reratui-hooksReact-inspired hooks for state management and side effects in Reratui TUI applications265MIT OR Apache-2.0AsynchronousCommand-line interface reratui-macroProcedural macros for component definition, RSX syntax, and hook validation in Reratui152MIT OR Apache-2.0AsynchronousCommand-line interface reratui-panicPanic handling utilities for Reratui TUI framework407MIT OR Apache-2.0AsynchronousCommand-line interface reratui-ratatuiRatatui backend adapter for Reratui TUI framework134MIT OR Apache-2.0AsynchronousCommand-line interface reratui-runtimeAsync runtime, event loop, and rendering engine for Reratui TUI applications132MIT OR Apache-2.0AsynchronousCommand-line interface rerconA simple RCON library with automatic reconnection support11,249MIT rereaderA TUI EPUB reader that remembers your reading position22MITCommand line utilities rerecReadings and records from sensory instruments as used by Herodot and Percepter3340BSD rerecastRust port of recastnavigation28,361MIT OR Apache-2.0Game development reredisreredis is a reimplementation of Redis (server) in Rust programming language.3,049non-standard rerefA tool for transforming the dependencies fields on all Cargo.toml in a given project1,495non-standard rererouterIron router with regex captures support.3,630MITWeb programming::HTTP server rerobotsRust library for rerobots6,915Apache-2.0 rerobots-clicommand-line interface (CLI) for rerobots1,651Apache-2.0 rerollcli app to roll dice!456non-standard reroutOfficial Rust SDK for the Rerout branded-link API.87MITAPI bindingsWeb programming::HTTP client rerouteA router that can use regular expressions for the hyper package25,262MIT reruA simple HTTP request client4,885MIT/Apache-2.0 rerunLog images, point clouds, etc, and visualize them effortlessly1,663,275MIT OR Apache-2.0Computer visionVisualization rerun-cliLog images, point clouds, etc, and visualize them effortlessly177,914MIT OR Apache-2.0Computer visionVisualization rerun-loader-colladaRerun external mesh loader for collada files1,728MIT OR Apache-2.0 rerun-tonic-web-wasm-clientgrpc-web implementation for use by tonic clients in browsers via webassembly14,484MIT/Apache-2.0AsynchronousNetwork programming rerun_cRerun C SDK377,836MIT OR Apache-2.0 rerun_exceptRerun a cargo build except when specified files are changed93,629Apache-2.0/MITDevelopment tools rerun_in_exceptRerun build script if files in a directory have changed, excluding listed ones6,628MIT OR Apache-2.0 rerun_urdfURDF support for Rerun visualization537Apache-2.0Science::Robotics rerupA Rust library for hacking-related utilities, including bruteforcing and fuzzing.3,781MIT OR Apache-2.0 rerustReactive programming with dataflow semantics1,629Apache-2.0 resRes is a build-script dependency for managing your project's resources.18,017Apache-2.0 OR ZlibData structuresDevelopment tools::Build Utils res-regexA js-regex validator64,350MITParsing toolsText processing res2brA tool to convert between resolutions and bitrates11,614AGPL-3.0-or-laterCommand line utilities resaModular Rest interface for searching similar compiler errors to get possible solutions.3,338Unlicense resalloc-kubernetesA CLI used to allocate kubernetes pod resource for resalloc framework.7,339MIT resaltResalt is a free, open-source, self-hosted, web-based administration and monitoring panel for SaltStack.2,866MIT resampleA library based on libsamplerate for converting samplerates278BSD-2-ClauseAlgorithmsAPI bindings resamplerA small audio resampling library51,132Apache-2.0 OR MITAlgorithmsMultimedia::Audio resampler-rsA waveform resampler mainly for audio processing written in Rust10,025non-standard resamplescope-rsValidate, compare, and plot the resampling filters/kernels used by any image resizer24AGPL-3.0-or-laterGraphicsMultimedia::Images resandRead and write ARSC and AXML binary files used for Android Resources1,269Apache-2.0Parser implementations resand-deriveHelper derive crate for resand48Apache-2.0 resastRusty-ECMAScript Abstract Syntax Tree77,575MITParsing toolsText processing resbUtilities for reading and writing ICU resource bundle files2,711,608Unicode-3.0Embedded developmentInternationalization (i18n) rescA Redis based task orchestrator9,521MIT rescript-openapiGenerate type-safe ReScript clients from OpenAPI specifications20non-standardDevelopment toolsWeb programming rescrobbledMPRIS music scrobbler daemon17,810GPL-3.0Command line utilitiesMultimedia rescrobbled-forkMPRIS music scrobbler daemon1,143GPL-3.0Command line utilitiesMultimedia resctl-benchWhole system resource control benchmarks with realistic scenarios30,692Apache-2.0 resctl-bench-intfWhole system resource control benchmarks with realistic scenarios (interface library)31,536Apache-2.0 resctl-demoA guided tour of Linux resource control with live demos30,750Apache-2.0 resctrlA simple agent to interact with Linux resctrl1,496MIT resctrlfsA crate for reading resctrl fs data6,819Apache-2.0 rescue-blanketEscape values while they are being formatted2,887MIT rescue_poseidonSponge construction based Algebraic Hash Functions465,480MIT OR Apache-2.0Cryptography resead-rsAn implementation of the reverse engineered Nintendo's SEAD library1,758MIT researchA human-first, local-first personal library for saved URLs.16,976Apache-2.0Command line utilitiesDatabase interfaces research-domainShared CRDT domain and immutable synchronization protocol for ResearchPocket.18Apache-2.0 research-masterMCP server for searching and downloading academic papers from multiple research sources44MITAPI bindingsCommand line utilities research-storeLocal SQLite projection, import, enrichment, and outbox for ResearchPocket.15Apache-2.0 reseeding_rngReseedingRng that periodically reseeds the underlying PRNG105,412Apache-2.0 resembleRust code similarity checker based on AST node embeddings and cosine similarity372MITDevelopment toolsParsing tools resemble-rustResemble is the easiest way to clone and synthesize natural voice.4,798MIT resendresend is a easy to use, performant, customizable and extendable Rust library for little-endian/big-endian serializing and…6,252MIT OR Apache-2.0EncodingNetwork programming resend-client-rsBasic port of Resend client1,742MITAPI bindingsEmail resend-emailClient library to send emails using the Resend API3,811MIT resend-mcpMCP server for the Resend email API92Apache-2.0EmailNetwork programming resend-rsResend's Official Rust SDK.435,658MITEmailWeb programming resend-rustA Resend client implemented in Rust5,017MIT resend_deriveresend derive for resend serializing libarary3,662MIT OR Apache-2.0EncodingNetwork programming resend_email_rsLightweight mailing SDK for Resend.com1,548MIT resequenceTime-travel simulation engine based on Achron's Resequence engine patterns23MITGame developmentSimulation reserRe-serialization of data to a different format3,279MIT OR Apache-2.0Encoding