All 305,250 crates, alphabetically

relfaA gentle digital gravedigger to lovingly archive your old files.4,296MIT relgenCLI tool for generating Pull Requests to multiple repositories4,429MIT relhuA library that can parse relative and/or human time duration strings.1,933MIT OR Apache-2.0Date and time reliability-toolkitAsync reliability primitives for Rust: rate limiter, circuit breaker, retry with jitter, bulkhead. Optional audit-stream-py…36MITAsynchronousConcurrency reliableA simple packet acknowledgement system for UDP-based protocols16BSD-3-ClauseGame developmentNetwork programming reliablyA fully-featured real-time Rust SDK for Ably pubsub182Apache-2.0API bindingsAsynchronous reliakitReliability building blocks for Rust: validated primitives, secrets, bounded collections, backoff, retry helpers, circuit…168MITDevelopment toolsNo standard library reliakit-backoffClock-agnostic retry backoff policies (exponential, linear, constant) with jitter helpers. no_std and zero-dependency.715MITAlgorithmsNo standard library reliakit-bulkheadClock-agnostic concurrency limiter (counting-semaphore bulkhead) that caps in-flight operations. no_std and zero-dependency.140MITAlgorithmsNo standard library reliakit-circuitClock-agnostic circuit breaker for fault isolation and fast failure. no_std and zero-dependency.237MITAlgorithmsNo standard library reliakit-codecDeterministic canonical binary encoding and decoding traits for reliability-oriented Rust values.226MITEncodingNo standard library reliakit-collectionsBounded and reliability-oriented collection types for Rust.247MITData structuresNo standard library reliakit-coreShared building blocks for Reliakit: a clock-agnostic Clock trait with manual and monotonic clocks. no_std and zero-dependency.250MITDate and timeNo standard library reliakit-csvStrict, bounded, and deterministic CSV for reliability-sensitive Rust. no_std + alloc, zero-dependency.167MITEncodingNo standard library reliakit-decideDeterministic, zero-dependency utility-based decision engine for agents and control logic. no_std + alloc.234MITAlgorithmsNo standard library reliakit-deriveDerive macros for reliakit traits, implemented with only the standard library proc-macro API and no third-party dependencies.207MITDevelopment tools::Procedural macro helpersEncoding reliakit-healthHealth status types and a criticality-aware aggregator for service health checks, probes, and status pages. no_std-friendly and…191MITData structuresNo standard library reliakit-jsonStrict, bounded, and deterministic JSON for reliability-sensitive Rust. no_std + alloc, zero-dependency.295MITEncodingNo standard library reliakit-primitivesReusable type-safe primitives for constrained and reliability-oriented Rust values.1,025MITData structuresNo standard library reliakit-ratelimitClock-agnostic token-bucket rate limiter with retry-after. no_std and zero-dependency.959MITAlgorithmsNo standard library reliakit-retrySmall, runtime-agnostic retry helpers for fallible operations. Sync and async, never sleeps internally, no_std-friendly,…192MITAsynchronousNo standard library reliakit-secretSecret-safe wrappers for Rust values that should not leak through formatting or diagnostics.849MITAuthenticationConfiguration reliakit-timeoutClock-agnostic deadlines and timeouts for retries and resilience. no_std and zero-dependency.166MITAlgorithmsNo standard library reliakit-validateComposable validation traits and error types for Rust structs and values.749MITData structuresNo standard library reliary-agentGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.125MIT reliary-compressGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.161MIT reliary-coreGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.155MIT reliary-deadGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.167MIT reliary-fixGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.166MIT reliary-memoryGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.164MIT reliary-outputGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.162MIT reliary-riskGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.158MIT reliary-searchGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.154MIT reliary-siftGrammar-free code intelligence daemon, CLI, MCP server, and API proxy.166MIT relibrelib is a framework for reloadable dynamic libraries14,043MIT relib-bddBinary Decision Diagrams (BDD) and Zero-suppressed BDDs (ZDD) for the relib reliability toolkit (engine behind the relibmss…427MITData structuresScience relib-bssBinary-state system (BSS) reliability analysis over BDDs: probability, path/cut enumeration, minimal solutions, k-of-n, counting.…375MITData structuresScience relib-commonShared primitives and traits for the relib decision-diagram crates (the Rust reliability-analysis engine behind the relibmss…547MITData structuresScience relib-mddMulti-valued Decision Diagrams (MDD, MTMDD, MTMDD2) for the relib reliability toolkit (engine behind the relibmss Python package).424MITData structuresScience relib-mssMulti-state system (MSS) reliability analysis over MTMDD2: state probability, minimal path/cut vectors, counting. Rust engine…375MITData structuresScience relib_exportrelib is a framework for reloadable dynamic libraries13,939MIT relib_exportifyrelib is a framework for reloadable dynamic libraries14,779MIT relib_hostrelib is a framework for reloadable dynamic libraries12,653MIT relib_interfacerelib is a framework for reloadable dynamic libraries14,854MIT relib_internal_crate_compilation_inforelib is a framework for reloadable dynamic libraries15,151MIT relib_internal_sharedrelib is a framework for reloadable dynamic libraries15,784MIT relib_modulerelib is a framework for reloadable dynamic libraries12,935MIT relicPackage management for Arch Linux5,335MIT OR Apache-2.0 relic-vcsGit, but in Rust.511MITCommand-line interfaceFilesystem reliefgraphThe humanitarian data knowledge graph indexer353MIT reliefwebA Rust client for the ReliefWeb API1,118MIT relieuserelieuse36non-standard relintio-agentIn-process protection agent for Rust web frameworks (Axum, Actix-web) powered by Relintio.42MIT reliqA portable library of primitive-like constructs.5,220Apache-2.0 reliquaryMedia preservation backend — tracks physical media collections, manages capture and extraction pipelines, and records processing…101AGPL-3.0-or-laterDatabase interfacesMultimedia reliquary-cliCommand-line interface for Reliquary — search, add, and manage physical media collections14AGPL-3.0-or-laterCommand line utilities reliquary-tuiTerminal UI for Reliquary — browse, navigate, and edit physical media collections15AGPL-3.0-or-laterCommand line utilities reliquary-webWeb frontend for Reliquary — browse and edit physical media collections from any device14AGPL-3.0-or-laterWeb programming relishA serialization format and library24BSD-3-Clause relish_deriveDerive support for the relish crate120BSD-3-Clause relitRegular expression literals for Rust.22Apache-2.0 reliudpA custom Reliable UDP protocol for Rust4,677MITNetwork programming relixA Pratt parser implementation for a custom language with support for expressions, statements, and type annotations30MITDevelopment toolsParser implementations relmAsynchronous, GTK+-based, GUI library, inspired by Elm, written in Rust187,392MITAsynchronousGUI relm-attributesAttributes to simplify the use of the relm crate55,836MIT relm-coreCore streams and event loop primitives for asynchronous GUI in Rust. Foundation for the relm crate.76,068MITAsynchronousGUI relm-deriveCustom derive required by the relm crate.160,007MIT relm-derive-commonCommon derive implementation internally used by relm crates62,662MIT relm-derive-stateCustom derive required by the relm-state crate.21,183MIT relm-gen-widgetUtility crate for relm-attributes and relm-derive128,159MIT relm-stateNon UI part of relm62,324MIT relm-testTesting library for relm37,286MITDevelopment tools::TestingGUI relm4An idiomatic GUI library inspired by Elm and based on gtk4-rs570,473Apache-2.0 OR MITGUI relm4-componentsAn idiomatic GUI library inspired by Elm and based on gtk4-rs258,005Apache-2.0 OR MITGUI relm4-cssAn idiomatic GUI library inspired by Elm and based on gtk4-rs322,873Apache-2.0 OR MITGUI relm4-iconsIcons for gtk-rs and Relm4 applications96,412(Apache-2.0 OR MIT) AND CC0-1.0 AND MITGUI relm4-icons-buildIcons for gtk-rs and Relm4 applications25,793(Apache-2.0 OR MIT) AND CC0-1.0 AND MITGUI relm4-macrosAn idiomatic GUI library inspired by Elm and based on gtk4-rs570,394Apache-2.0 OR MITGUI relm4-storeData store for relm45,279Apache-2.0 OR MITGUI relm4-store-backend-dummyDummy backend for relm4-store used for writing tests2,722Apache-2.0 OR MITGUI relm4-store-backend-inmemoryIn memory backend for relm4-store2,705Apache-2.0 OR MITGUI relm4-store-collectionsCustom collections required by the relm4-store2,868Apache-2.0 OR MITGUI relm4-store-componentsComponents for relm4-store2,722Apache-2.0 OR MITGUI relm4-store-recordLibrary for buildiong application model.6,497Apache-2.0 OR MITGUI relm4-store-reexportHolds all dependencies for relm4-store in single place7,035Apache-2.0 OR MITGUI relm4-store-view-implementationStore view implementation for relm4-store3,438Apache-2.0 OR MITGUI relmath-rsRelation-first mathematics and scientific computing in Rust.113MIT OR Apache-2.0AlgorithmsData structures relnetA minimal implementation of telnet with tls support.1,638MIT relnotesA tool to automatically generate release notes for your project.4,513MIT OR Apache-2.0 relnotifyA library for checking GitHub releases and notifying about updates103MIT reloA custom programming language with a readable syntax (RELO).1,794MITCompilersParsing tools reloadWork in progress1,704MIT reload-rsServes web pages and automatically reload when any files changed in the web server directory.2,234GPL-3.0 reload_configA small library for hot reloading configuration files without restarting the process.7,710MITFilesystem reload_selfCross-platform process hot reload library / 跨平台进程热重载库1,025MulanPSL-2.0 reloadable-coreA generic reloadable state management core traits.172,478MITCaching reloadable-stateA generic reloadable shared state.172,153MITCaching reloadedtaking it for now879MIT reloaded-memory-buffersShared, Concurrent, Permanent Memory Allocator tied to Process Lifetime18,462GPL-3.0 reloaderplaceholder1,545MIT OR Apache-2.0 reloadifyA library for automatically reloading configuration files3,488MITConfigurationFilesystem relockDistributed async locking using Redis4,995MIT relogStrong String Normalization17,265MIT relogicDo circuit simulation the open source way!1,455MIT relonPublic API facade for the Relon language71Apache-2.0CompilersConfiguration relon-analyzerSemantic analysis layer for the Relon language: name resolution, schema desugar, diagnostics182Apache-2.0CompilersDevelopment tools relon-benchPlaceholder for the relon-bench crate (micro-benchmarks for Relon). Real release in development.18Apache-2.0Configuration relon-capLeaf crate holding Relon's canonical capability data types (CapabilityBit / NativeFnGate / Capabilities).176Apache-2.0Compilers relon-cliCommand line interface for the Relon language34Apache-2.0Command line utilitiesConfiguration relon-codegen-craneliftLower Relon IR to native machine code via Cranelift (v5-beta-1 AOT backend)64Apache-2.0Compilers relon-codegen-llvmLLVM-backed AOT evaluator for Relon (Phase A bootstrap)48Apache-2.0Compilers relon-eval-apiPublic types and Evaluator trait shared across Relon evaluation backends151Apache-2.0CompilersConfiguration relon-evaluatorThe evaluation engine for the Relon language111Apache-2.0CompilersConfiguration relon-fmtFormatter and syntax checker for Relon files68Apache-2.0Command line utilitiesDevelopment tools relon-irLinear-typed IR layer between Relon analyzer and codegen backends (WASM, native, JS, ...)94Apache-2.0Compilers relon-lspLanguage Server Protocol implementation for Relon (parse + analyze + diagnostics)51Apache-2.0Development tools relon-object-cacheOn-disk + in-memory cache for cranelift-object `.o` artefacts used by the v5-gamma native AOT pipeline93Apache-2.0CachingCompilers relon-object-linkET_REL -> ET_DYN link pass used by the v5-gamma native AOT pipeline before handing bytes to relon-object-cache79Apache-2.0Compilers relon-parserThe core parser for the Relon language212Apache-2.0ConfigurationParser implementations relon-rs-buildbuild.rs API to compile Relon sources to relocatable object files18Apache-2.0CompilersDevelopment tools::Build Utils relon-rs-macroinclude_relon! procedural macro for AOT-compiled Relon sources17Apache-2.0CompilersDevelopment tools::Procedural macro helpers relon-rs-shimsRuntime ABI shims for Relon AOT-compiled functions linked into Rust binaries17Apache-2.0Compilers relon-unicodeLeaf Unicode tables, case-folding / normalization algorithms, and the glob matcher shared across Relon crates.136Apache-2.0CompilersText processing relon-utilLeaf utility helpers shared across Relon crates (alignment math, Rust identifier checks).153Apache-2.0Compilers relon-wasmPlaceholder for the relon-wasm crate (WASM bindings for Relon). Real release in development.18Apache-2.0Configuration reloopRust SDK for the Reloop email API17Apache-2.0 reloop-emailRust SDK for the Reloop email API17Apache-2.0 relooperTurn unstructured branches and jumps into structured blocks8,642MIT reloxELF32 relocation compression and decompression1,711MIT OR Apache-2.0CompressionEmbedded development relpRust Exact Linear Programming16,814GPL-3.0-onlyAlgorithmsScience relp-binAn exact linear program solver written in Rust7,906GPL-3.0-onlyAlgorithmsScience relp-numNumber types for the relp crate25,537GPL-3.0-onlyAlgorithmsScience relrcReference counted pointers, with relationships to other pointers.187,476Apache-2.0ConcurrencyMemory management relrige2_parser_kmaMy first parser with peg206MIT relsA command line tool to easily track tickets and releases via git.3,816MIT reltesterAutomatically verify the correctness of [Partial]Eq/Ord implementations86,522MIT reltimeRelative time representations with language support23MIT reluNo fluff bindings to Luau.660MIT relu-q15ReLU en virgule fixe Q15 pour systèmes embarqués `no_std`, zéro dépendance18GPL-2.0-or-laterEmbedded developmentMathematics reluaxA LuaX-based web framework5,075MIT reluxExpect-style integration test framework for interactive shell programs135MITDevelopment tools::Testing relux-astInternal: AST types for Relux. No semver guarantees.367MIT relux-coreInternal: core types for Relux. No semver guarantees.446MIT relux-irInternal: IR types and lowering for Relux. No semver guarantees.273MIT relux-lexerInternal: lexer for Relux. No semver guarantees.264MIT relux-parserInternal: parser for Relux. No semver guarantees.219MIT relux-resolverInternal: resolver for Relux. No semver guarantees.163MIT relux-runtimeInternal: runtime for Relux. No semver guarantees.162MIT reluxscriptWrite AST transformations once. Compile to Babel, SWC, and beyond.175MITCompilersDevelopment tools remParser for the remind REM format6,253MITParser implementations rem-bashRemote bash script execution and library import5,214MIT rem-borrowerPermission repairer for Rusty Extraction Maestro5,638MIT rem-cliA CLI tool to help you remember things14,181MIT rem-command-lineCLI interface for the REM toolchain. Built to be implemented into the VSCode extension for REM942MITCommand line utilitiesDevelopment tools rem-constraintUtilities for Rusty Extraction Maestro4,146MIT rem-controllerNon-local control flow repairer for Rusty Extraction Maestro5,690MIT rem-execAgent-friendly remote process execution66MITCommand line utilitiesDevelopment tools rem-exec-vaultSecret store for remote execution workflows. age-encrypted files, keyctl-backed identity.18MITAuthenticationCommand line utilities rem-extractProviding extract method capability for the REM toolchain3,948MIT rem-interfaceInterface and Metrics for REM330MIT rem-repairerLifetime repairer for Rusty Extraction Maestro5,202MIT rem-rsOver-engineered 'Move to Trash' script1,640MIT OR Apache-2.0Command line utilities rem-serverJSON-RPC Client for the REM Toolchain89MIT rem-utilsUtilities for Rusty Extraction Maestro10,620MIT rem-verificationVerification tool for the REM toolchain. Built to be implemented into the VSCode extension for REM. Relies on AENEAS and CoQ1,233MITDevelopment tools remacChange your MAC address1,587MIT remacsPlaceholder for Rust based Emacs1,636GPL-3.0-or-laterText editors remailA minimal, self-hosted email server written from scratch in Rust. In design; the first functional release will cover inbound SMTP.18MITEmailNetwork programming remainCompile-time checks that an enum, struct, or match is written in sorted order.3,578,649MIT OR Apache-2.0Development toolsNo standard library remakeA library for writing maintainable regex and managing symbol soup.1,960MIT/Apache-2.0Text processing remanA fun reimplementation of hangman in rust :)4,433AGPL-3.0 remanaReserved for Remana (tryremana.com) — official crate coming soon.14LicenseRef-Proprietary remarkA new mark-document generator.1,968Apache-2.0 remark-commitRemark commit hashes on the Polkadot blockchain2,670GPL-3.0-only remark-interpreterAn interpreter for the Remark programming language1,466MIT remark-libAPI libraries for remark.1,885Apache-2.0 remarkableA collection of programs for the reMarkable tablet1,813MIT remarkable-cloudCLI client for the reMarkable cloud.1,607Apache-2.0 remarkable-cloud-apiBindings for the reMarkable cloud API.2,562Apache-2.0API bindings remarkable-corereMarkable cloud client and document model — the library half of remarkable-mcp.20MITAPI bindings remarkable-eventsAsynchronous Pen events for Remarkable2,864MIT remarkable-mcpAn MCP server for the reMarkable cloud — browse, search, and organize your tablet from any MCP client.16MITCommand line utilities remarkable_linesRemarkable Files Parser4,120MIT remarkjsthis is a tool to change md to slide share by leveraging remarkjs3,135Apache-2.0 remarklibThe core of the Remark programming language4,567MIT remarkoA small webview window for previewing makdown and localhost.2,683non-standardCommand line utilities remataA Rust library for reading metadata from various media file formats.42MITMultimedia::AudioParsing tools rematchA procedural macro to generate simple FromStr implementation based on Regular Expression matching4,434MITParsing tools remberA WIP clone of Ember CLI in Rust12,682MIT OR Apache-2.0Command line utilities rembg-rsA Rust library for removing backgrounds from images using neural networks739MITMultimedia::ImagesScience remcachedCaching system designed for efficient storage and retrieval of entities from remote repositories (REST APIs, Database, ...etc)2,460MIT OR Apache-2.0AsynchronousCaching remdb嵌入式内存数据库624MIT remdb-macrosremdb macros715MIT remeplaceholder for upcoming project1,619MIT OR Apache-2.0 remedianA Rust implementation of The Remedian100,176MIT OR Apache-2.0 remediateLibrary for thinking and learning4,739MITParsing tools remedyTool for thinking and learning1,440MIT rememThread-safe object reuse.6,427MIT OR Apache-2.0AsynchronousMemory management remem-aiLocal-first coding agent memory for Claude Code and OpenAI Codex1,177MITCommand line utilitiesDevelopment tools remembearSelf-hosted web app for recurring reminders1,694MIT