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.

r2d2-aykroydAykroyd micro-ORM for the r2d2 connection pool.5,120MIT r2d2-beanstalkdBeanstalk support for the r2d2 connection pool1,864MIT r2d2-boltA bolt-client adaptor for the r2d2 connection pool.1,328MIT r2d2-clickhouseClickHouse support for the r2d2 connection pool1,488MIT r2d2-cryptokir2d2 adaptor for cryptoki125,313MIT OR Apache-2.0 r2d2-dieselr2d2 support for Diesel486,069MIT r2d2-duckdbDuckDb support for the r2d2 connection pool6,790MIT r2d2-influx_db_clientInfluxDB support for the R2D2 connection pool.3,217MIT r2d2-influxdbr2d2 connection pool protocol for InfluxDB2,729MIT r2d2-jfsJFS support for the r2d2 connection pool4,455Apache-2.0 OR MIT r2d2-lapinLapin support for the r2d2 connection pool7,841MIT r2d2-ldapLDAP support for the r2d2 connection pool3,550MIT r2d2-memcacheMemcached support for the r2d2 connection pool110,062MIT r2d2-mongodbA MongoDB adaptor for r2d2 connection pool50,640GPL-3.0 r2d2-natsNats support for the r2d2 connection pool4,399MIT r2d2-oracleOracle support for the r2d2 connection pool92,039MIT OR Apache-2.0Database interfaces r2d2-palAn I/O device communication module written in Rust.989MIT r2d2-sqlite3Sqlite support for the r2d2 connection pool5,952MIT r2d2-testconnectionA generic test connection manager for r2d2 connection pool1,609MIT r2d2_adbcAn ADBC connection pool implementation using r2d2.13,260Apache-2.0Database interfaces r2d2_arangorsArangoDB support for the r2d2 connection pool12,518MIT r2d2_couchdbCouchDB support for the r2d2 connection pool2,574MIT/Apache-2.0 r2d2_cypherCypher support for the r2d2 connection pool44,847MIT r2d2_firebirdFirebird support for the r2d2 connection pool16,245MITDatabase interfaces r2d2_glusterr2d2 managed gluster connections3,454MIT r2d2_mysqlMySQL support for the r2d2 connection pool401,371MIT r2d2_mysql_batisr2d2_mysql_batis6,527MIT r2d2_mysql_batis_macrosr2d2_mysql_batis_macros1,952MIT r2d2_mysql_rustlsMySQL support for the r2d2 connection pool without native-tls.834MIT r2d2_odbcODBC support for the r2d2 connection pool16,072MITDatabase interfaces r2d2_odbc_apiODBC support for the r2d2 connection pool Via odbc-api Based on https://github.com/Koka/r2d2-odbc8,211MIT OR Apache-2.0 OR ZlibDatabase interfaces r2d2_postgresPostgres support for the r2d2 connection pool1,249,730MIT r2d2_pulsarConnection pooling for pulsar client6,218MIT/Apache-2.0API bindings r2d2_redisRedis support for the r2d2 connection pool886,107MIT r2d2_redis2Redis support for the r2d2 connection pool2,798MIT r2d2_redis_clusterRedis cluster support for the r2d2 connection pool.49,512MIT r2d2_redis_cluster2Redis cluster support for the r2d2 connection pool.1,978MIT r2d2_redis_patchRedis support for the r2d2 connection pool2,067MIT r2d2_sqliteSQLite and SQLCipher support for the r2d2 connection pool6,303,725MIT r2d2_sqlite_neonphogSQLite and SQLCipher support for the r2d2 connection pool80,563MIT r2d2_sqlite_poolSQLite and SQLCipher support for the r2d2 connection pool3,195MIT r2dbcRust Relation Database Connectivity (R2DBC) API4,273MITDatabase interfaces r2dbc-cliCommand line tool for querying R2DBC data sources1,593MITDatabase interfaces r2dbc-mysqlMySQL R2DBC Driver2,414MITDatabase interfaces r2dbc-postgresPostgres R2DBC Driver2,435MITDatabase interfaces r2dbc-sqliteSQLite R2DBC Driver2,452MITDatabase interfaces r2faA fast, terminal-based TOTP authenticator61MIT OR Apache-2.0Command line utilities r2g_mluaHigh level bindings to Lua 5.4/5.3/5.2/5.1 (including LuaJIT) and Roblox Luau with async/await features and support of writing…3,413MITAPI bindingsAsynchronous r2l-agentsA rust reinforcement learning library710MIT OR Apache-2.0 r2l-apiA rust reinforcement learning library509MIT OR Apache-2.0 r2l-burnA rust reinforcement learning library100MIT OR Apache-2.0 r2l-candleA rust reinforcement learning library99MIT OR Apache-2.0 r2l-coreA rust reinforcement learning library1,345MIT OR Apache-2.0 r2l-examplesA rust reinforcement learning library35MIT OR Apache-2.0 r2l-gymA rust reinforcement learning library902MIT OR Apache-2.0 r2l-macrosA rust reinforcement learning library1,287MIT OR Apache-2.0 r2l-samplerA rust reinforcement learning library101MIT OR Apache-2.0 r2l_subproc_envA rust reinforcement learning library449MIT OR Apache-2.0 r2mdEntire codebase to single markdown or pdf file.5,519MIT r2mo-cliR2MO terminal CLI20MIT r2mo-webelLeptos component library for r2mo-web (Tailwind-ready)86MITWebAssemblyWeb programming r2nA CLI tool for rapidly shipping Rust projects to npm46MIT OR Apache-2.0Command line utilitiesDevelopment tools r2pipeLibrary to interact with radare2 using r2pipes.36,974MIT OR Apache-2.0 r2rEasy to use, runtime-agnostic, async rust bindings for ROS2.455,596MIT AND Apache-2.0 r2r_actionsInternal dependency to the r2r crate.450,315MIT r2r_commonMinimal ros2 bindings.450,808MIT r2r_macrosMinimal ros2 bindings.297,379MIT r2r_msg_genInternal dependency to the r2r crate.454,331MIT r2r_rclInternal dependency to the r2r crate.450,142MIT r2rsStatistics programming for Rust based on R2,700MIT OR Apache-2.0 r2rs-baseStatistics programming for Rust based on R's base package5,666MIT OR Apache-2.0MathematicsScience r2rs-datasetsStatistical datasets for Rust based on R's datasets package4,243MIT OR Apache-2.0MathematicsScience r2rs-massStatistics programming for Rust based on R's MASS package5,387MIT OR Apache-2.0MathematicsScience r2rs-nmathStatistics programming for Rust based on R's nmath package7,177MIT OR Apache-2.0MathematicsScience r2rs-rfitStatistics programming for Rust based on R's Rfit package5,360MIT OR Apache-2.0MathematicsScience r2rs-statsStatistics programming for Rust based on R's stats package5,842MIT OR Apache-2.0MathematicsScience r2rust-coreAn interpreter inspired by R, implemented in Rust with a modular design.1,034GPL-3.0Command line utilitiesDevelopment tools r2synccli for synchronizing files between a local directory and Cloudflare R23,733MIT r2tA fast CLI tool to convert a repository's structure and contents into a single text file, useful for providing context to LLMs.449MITCommand line utilitiesDevelopment tools r2u2_cliR2U2 CLI: A stream-based runtime monitor command-line interface4,212MIT OR Apache-2.0Command line utilitiesCompilers r2u2_coreR2U2: A stream-based runtime monitor in no_std6,747MIT OR Apache-2.0Embedded developmentNo standard library r2xA framework plugin manager for the r2x power systems modeling ecosystem.1,126BSD-3-ClauseCommand line utilitiesDevelopment tools r2x-artifactsDirectory-backed and ZIP artifact handling for r2x9BSD-3-Clause r2x-astAST discovery utilities for the r2x CLI730BSD-3-Clause r2x-build-supportBuild script helpers for the r2x workspace180BSD-3-Clause r2x-configConfiguration management for the r2x CLI839BSD-3-Clause r2x-loggerLogging utilities for the r2x CLI779BSD-3-Clause r2x-manifestManifest management utilities for the r2x CLI982BSD-3-Clause r2x-pythonPython bridge for the r2x CLI869BSD-3-Clause r3R3-OS: Experimental static component-oriented RTOS for deeply embedded systems15,267MIT OR Apache-2.0Embedded developmentNo standard library r30_rsA psuedo-random bit generator in Rust implemented with the Rule-30 elementary cellular automata1,996MIT r36r361,474MulanPSL-2.0 r3_coreR3-OS API definition15,377MIT OR Apache-2.0Embedded developmentNo standard library r3_kernelThe R3-OS original kernel13,669MIT OR Apache-2.0Embedded developmentNo standard library r3_port_armArmv7-A port for the R3-OS original kernel10,149MIT OR Apache-2.0Embedded developmentNo standard library r3_port_arm_mCortex-M port for the R3-OS original kernel11,201MIT OR Apache-2.0Embedded developmentNo standard library r3_port_riscvRISC-V port for the R3-OS original kernel10,295MIT OR Apache-2.0Embedded developmentNo standard library r3_port_stdSimulator port for the R3-OS original kernel8,155MIT OR Apache-2.0 r3_portkitUtilities for writing a port of R314,162MIT OR Apache-2.0Embedded developmentNo standard library r3_support_rp2040Supporting package for running R3-OS on RP20406,458MIT OR Apache-2.0Embedded developmentNo standard library r3_support_rza1Supporting package for running R3-OS on Renesas RZ/A18,086MIT OR Apache-2.0Embedded developmentNo standard library r3ap3rpydemocrateThis is just a demo crate and upload for crates.io41Apache-2.0 r3bl-build-infraCargo subcommands that automate tedious parts of Rust development. cargo-rustdoc-fmt: format markdown tables and convert inline…93Apache-2.0Command line utilitiesDevelopment tools r3bl-cmdrA TUI app suite for developers. Includes a Markdown editor `edi` and a git client `giti`.24,882Apache-2.0Command-line interfaceCommand line utilities r3bl_analytics_schemaSupport crate for r3bl-cmdr, r3bl-base3,867Apache-2.0 r3bl_ansi_colorDEPRECATED: Use r3bl_tui instead. Rust crate to generate formatted ANSI 256 (8-bit) and truecolor (24-bit) color output to stdout491,939Apache-2.0Command-line interfaceCommand line utilities r3bl_coreDEPRECATED: Use r3bl_tui instead. Helper crate for r3bl_tui and r3bl_tuify crates.4,912Apache-2.0 r3bl_macroDEPRECATED: This crate is no longer maintained. Internal proc-macro library.2,616Apache-2.0 r3bl_reduxDEPRECATED: This crate is no longer maintained. Redux library built using Tokio20,715Apache-2.0Rust patternsWeb programming r3bl_rs_utilsDEPRECATED: Use r3bl_tui instead. Misc utility functions for r3bl-open-core repo108,400Apache-2.0 r3bl_rs_utils_coreDEPRECATED: Use r3bl_tui instead. Helper crate for r3bl_tui and r3bl_tuify crates.464,307Apache-2.0 r3bl_rs_utils_macroDEPRECATED: Use r3bl_tui instead. Internal support for a proc-macro library.339,118Apache-2.0 r3bl_simple_loggerDEPRECATED: Use r3bl_tui instead. Replacement for the simplelog crate.416,996Apache-2.0Command-line interfaceCommand line utilities r3bl_terminal_asyncDEPRECATED: Use r3bl_tui instead. Async non-blocking read_line with multiline editor and spinners16,636Apache-2.0Command-line interfaceCommand line utilities r3bl_test_fixturesDEPRECATED: Use r3bl_tui instead. Test fixtures for the r3bl_* crates4,478Apache-2.0Command-line interfaceCommand line utilities r3bl_tuiTUI library to build modern apps inspired by React, Elm, with Flexbox, CSS, editor component, emoji support, and more377,516Apache-2.0Command-line interfaceCommand line utilities r3bl_tuifyDEPRECATED: Use r3bl_tui instead. Lightweight TUI capabilities for CLI apps441,047Apache-2.0Command-line interfaceCommand line utilities r3dRust version of the Reactor3D game engine1,959MIT r3dlockReserved for future use1,531EUPL-1.2 r3fitSimple RANSAC algorithm that uses 3 samples to estimate a circle over the given points.1,661MIT r3ma_backupSimple utility library for decrypting and encrypting Threema key backups.1,670MIT OR Apache-2.0 r3memA Simple Ring3 Memory RPM WPM Lib5,786MIT r3sizerCLI for automatic-sharpness image downscaling45MITCommand line utilitiesMultimedia::Images r3sizer-corePure image processing core: linear color, downscale, sharpen, artifact metric, polynomial fit and solve128MITMultimedia::Images r3sizer-ioImage I/O layer: load PNG/JPEG into LinearRgbImage, save back to file87MITMultimedia::Images r4A compact macro that generates iterators using for comprehensions and natural Rust syntax.4,000Apache-2.0 r402Core types for the x402 payment protocol.1,766MIT OR Apache-2.0 r402-evmEIP-155 (EVM) chain support for the x402 payment protocol.1,255MIT OR Apache-2.0 r402-facilitatorLocal x402 Facilitator server.81MIT OR Apache-2.0Cryptography::CryptocurrenciesFinance r402-httpHTTP transport layer for the x402 payment protocol.898MIT OR Apache-2.0 r402-mcpMCP (Model Context Protocol) integration for the x402 payment protocol.151MIT OR Apache-2.0 r402-svmSolana chain support for the x402 payment protocol.1,012MIT OR Apache-2.0 R413D08R413D08 protocol and commandline tool3,097MIT OR Apache-2.0 r44relay44 CLI — prediction markets and agent execution89Apache-2.0Command line utilitiesFinance r4_grrsA tool to search files2,649MITCommand line utilities r4dText oriented macro processor94,199MIT OR Apache-2.0Command line utilitiesText processing R4DCB08R4DCB08 protocol and commandline tool3,500MIT OR Apache-2.0 r4pmProcess Mining CLI for working with (object-centric) event data75MIT OR Apache-2.0 r4wLightweight messaging protocol for memory/bandwidth constrained devices717MIT r50...17,863LGPL-3.0-or-laterCommand line utilities r528-pacPeripheral access API for Allwinner R528 SoC generated from unofficial SVD file4,854MIT OR Apache-2.0Embedded developmentHardware support r53-ddnsSet an Amazon Route 53 DNS record for the server/network24,511Apache-2.0Network programming r53ddnsa command-line utility to update A record in Route53 with current global IP address1,711MIT OR Apache-2.0Command line utilities r55The r55 compiler for R.txt android files2,276non-standard r621Provides a client to access e6219,085MIT r64driveA Rust API for the 64Drive N64 Development Cartridge's USB Interface4,555Apache-2.0API bindingsHardware support r6502A simple MOS 6502 emulator.11,048Apache-2.0 OR MITEmulatorsNo standard library r68kMotorola 68000 CPU emulator, ported from the battle-tested Musashi emulator1,196MITEmulatorsSimulation r6nRusty Randomized Recursive Routing for Restricted-Route Networks. R5N DHT implementation in Rust.1,310MITNetwork programming r6stats_clientClient for the r6stats API.11,142MIT r7fa4m1ab-pacA PAC generated by SVD2Rust for the Renesas R7FA4M1AB in the Renesas RA4M1 family of Microcontrollers41MIT OR Apache-2.0Embedded developmentHardware support r7rsWIP1,319Apache-2.0 OR MIT r7rs-parserSimple Scheme R7RS parser & lexer1,569MITParser implementationsParsing tools r8A CHIP-8 interpreter made with Rust, Pixels and Winit.1,694MITEmulatorsGame development r8brain-rsr8brain audio resampler bindings for Rust. Sample rate converter designed and implemented by Aleksey Vaneev of Voxengo5,805MIT r8libA library for CHIP-8 interpreters development.2,228MITEmulatorsGame development r8limitDead simple rate limiter for Rust7,978MIT r8rn8n.io reimagined in Rust. One static binary, 5 modules, codegen pipeline for the long tail.22Unlicense r9irRewrite 9cc in Rust3,081MIT r_redis key const for hpc1,094MulanPSL-2.0 r_coreRust bindings for radare2's r_core1,620MIT r_fetcherTest deploy pakage1,487MIT r_geo_hashA geohash library to get some usefull data1,494MIT OR Apache-2.0 r_gitA git implementation in Rust5,245MIT OR Apache-2.0 r_i18nAn i18n implementation in Rust.9,211MIT r_lampA Linux backlight utility inspired by acpibacklight1,123GPL-3.0-or-laterCommand line utilities r_logA simple reliable logger for rust with multiple available logging levels.651MITDevelopment tools r_mathlibA port of R's `nmath` stats module to Rust.9,545GPL-2.0-or-laterMathematics r_opensource_cliGet the top r/opensource posts from the cli43MIT r_passA program to quickly create a secure* password38GPL-3.0+ r_rgsearch text for local file1,569MIT r_sszSSZ Serialization and Merkleization for Ethereum consensus types.1,545MIT OR Apache-2.0CryptographyData structures r_statsA port of R's `nmath` stats module to Rust.1,710GPL-2.0-or-laterMathematics r_toolsA crate of utilities4,432MIT OR Apache-2.0 r_tracerA multithreaded, feature-rich ray tracer7,387MITGraphicsRendering raLLM agent orchestrator: reviewer-driven code generation via ACP and opencode86MIT ra-ap-rustc_abiAutomatically published version of the package `rustc_abi` in the rust-lang/rust repository from commit…2,446,066MIT / Apache-2.0 ra-ap-rustc_arenaAutomatically published version of the package `rustc_arena` in the rust-lang/rust repository from commit…25,442MIT / Apache-2.0 ra-ap-rustc_ast_irAutomatically published version of the package `rustc_ast_ir` in the rust-lang/rust repository from commit…661,385MIT / Apache-2.0 ra-ap-rustc_data_structuresAutomatically published version of the package `rustc_data_structures` in the rust-lang/rust repository from commit…24,713MIT / Apache-2.0 ra-ap-rustc_graphvizAutomatically published version of the package `rustc_graphviz` in the rust-lang/rust repository from commit…24,315MIT / Apache-2.0 ra-ap-rustc_hashesAutomatically published version of the package `rustc_hashes` in the rust-lang/rust repository from commit…1,473,210MIT / Apache-2.0 ra-ap-rustc_hirAutomatically published version of the package `rustc_hir` in the rust-lang/rust repository from commit…1,494MIT / Apache-2.0 ra-ap-rustc_indexAutomatically published version of the package `rustc_index` in the rust-lang/rust repository from commit…3,760,382MIT / Apache-2.0 ra-ap-rustc_index_macrosAutomatically published version of the package `rustc_index_macros` in the rust-lang/rust repository from commit…3,613,555MIT / Apache-2.0 ra-ap-rustc_lexerAutomatically published version of the package `rustc_lexer` in the rust-lang/rust repository from commit…5,239,404MIT / Apache-2.0 ra-ap-rustc_macrosAutomatically published version of the package `rustc_macros` in the rust-lang/rust repository from commit…86,837MIT / Apache-2.0 ra-ap-rustc_next_trait_solverAutomatically published version of the package `rustc_next_trait_solver` in the rust-lang/rust repository from commit…661,524MIT / Apache-2.0 ra-ap-rustc_parse_formatAutomatically published version of the package `rustc_parse_format` in the rust-lang/rust repository from commit…3,730,667MIT / Apache-2.0 ra-ap-rustc_pattern_analysisAutomatically published version of the package `rustc_pattern_analysis` in the rust-lang/rust repository from commit…2,235,985MIT / Apache-2.0 ra-ap-rustc_serializeAutomatically published version of the package `rustc_serialize` in the rust-lang/rust repository from commit…81,849MIT / Apache-2.0 ra-ap-rustc_type_irAutomatically published version of the package `rustc_type_ir` in the rust-lang/rust repository from commit…661,514MIT / Apache-2.0 ra-ap-rustc_type_ir_macrosAutomatically published version of the package `rustc_type_ir_macros` in the rust-lang/rust repository from commit…661,026MIT / Apache-2.0 ra-cliBaseline ReAct-style CLI agent for evaluation.161MITCommand line utilities ra-fsp-rsRust HAL for Renesas RA microcontrollers using FSP (Flexible Software Package)3,665MIT OR Apache-2.0Embedded developmentHardware support ra-fsp-sysRust raw bindings for Renesas RA Flexible Software Package (FSP)4,503MIT OR Apache-2.0Embedded developmentHardware support ra-halHardware Abstraction Layer (HAL) for the Renesas RA family of MCUs.41LGPL-3.0-or-later ra-killerAutomatically monitor and kill high-memory rust-analyzer processes69MITCommand line utilitiesDevelopment tools ra-metapacPeripheral Access Crate (PAC) for Renesas RA microcontrollers.223LGPL-3.0-or-laterAsynchronousEmbedded development ra-multiplexshare one language server instance between multiple LSP clients to save resources18,894EUPL-1.2