All 305,250 crates, alphabetically

kapi-clientHTTP client library for kapi API servers71MIT OR Apache-2.0Network programmingWeb programming::HTTP client kapi-controllerController-runtime SDK for building kapi controllers49MIT OR Apache-2.0AsynchronousWeb programming kapi-coreCore types for the kapi ecosystem82MIT OR Apache-2.0Data structures kapi-serverA lightweight Kubernetes-apiserver-inspired API server in Rust47MIT OR Apache-2.0Network programmingWeb programming::HTTP server kapibuildCLI tool for scaffolding kapi controller projects30MIT OR Apache-2.0Command line utilities kapitalist_typesShared types for Kapitalist backend and frontends4,714MIT/Apache-2.0 kapitiThe Kapiti DNS Server4,227non-standard kapotkapot Distributed Compute1,840Apache-2.0 kapot-cachekapot Cache2,766Apache-2.0 kapot-cliCommand Line Client for Kapôt distributed query engine.1,550Apache-2.0 kapot-corekapot Distributed Compute2,514Apache-2.0 kapot-executorkapot Distributed Compute - Executor2,054Apache-2.0 kapot-schedulerkapot Distributed Compute - Scheduler2,069Apache-2.0 kapowTemplate processor50,726MIT kappaYet another actor framework, this one based on the lambdas/behaviors.1,614MIT OR Apache-2.0 kappa-chatA read-only, anonymous Twitch chat viewer for the terminal (TUI).20MITCommand line utilities kappendlistAppend to a growable list in O(1) without needing &mut78,430MIT kaprekarInclude a function to find number of iterations to reach Kaprekar's constant.7,411MIT kaps🔐 Enterprise-grade file encryption toolkit826MIT kapselCrash-recoverable gateway for one authorized Kubernetes Deployment image operation16Apache-2.0Development tools kapsl-backendsPluggable inference backends (ONNX, llama.cpp) for the Kapsl engine285Apache-2.0 kapsl-coreCore model loading, configuration, and caching for the Kapsl inference engine523Apache-2.0 kapsl-engine-apiCore API traits and types for the Kapsl inference engine620Apache-2.0 kapsl-halHardware abstraction layer for CPU, CUDA, and ROCm devices in Kapsl535Apache-2.0 kapsl-ipcInter-process communication protocol for Kapsl engine clients289Apache-2.0 kapsl-kernelsCompute kernels for matrix operations and attention in Kapsl370Apache-2.0 kapsl-llmLarge language model inference with GGUF and ONNX backend support for Kapsl326Apache-2.0 kapsl-loaderSafetensors weight loader and model config parser for the Kapsl native inference path26Apache-2.0 kapsl-monitorPrometheus metrics and monitoring for the Kapsl inference engine285Apache-2.0 kapsl-optimizerInference optimization strategies and graph transformations for Kapsl34Apache-2.0 kapsl-quantizationModel weight quantization formats and conversion utilities for Kapsl370Apache-2.0 kapsl-ragRetrieval-augmented generation implementation with vector store and WASM plugins for Kapsl284Apache-2.0 kapsl-rag-sdkRetrieval-augmented generation SDK traits and types for Kapsl340Apache-2.0 kapsl-schedulerRequest scheduling and batching for the Kapsl inference engine369Apache-2.0 kapsl-shmShared memory transport for high-throughput inter-process tensor transfer in Kapsl330Apache-2.0 kapsl-transportAsync transport layer for inter-process communication in Kapsl368Apache-2.0 kaptaKapta ~ Inspired by leaflet. Draw map with wasm6,623MIT kaptn-attribute-transfer-hookTransfer-Hook Attribute for the Kaptn Transfer-Hook Framework8,206Apache-2.0 kaptn-cliCLI for the Kaptn Transfer-Hook Framework12,769Apache-2.0 kaptn-derive-extrametasExtraMetas Derive for the Kaptn Transfer-Hook Framework9,182Apache-2.0 kaptn-langKaptn Transfer-Hook Framework12,700Apache-2.0 kaptn-macrosMacros for Kaptn Transfer-Hook Framework12,128Apache-2.0 kaptn-synSyntax parsing and code generation for Kaptn Transfer-Hook Framework2,696Apache-2.0 kaput-cliThe unofficial CLI for Put.io17,151MITCommand line utilities kapyCli tool to copy photos with optimizations12,075MIT kapy-exifA minimal library that extracts and replaces EXIF for images2,440MIT kapy-liteCli tool to copy photos with GPS information1,627MIT karaCrafting interpreters tutorial implementation in Rust, named Kara after the first girl I kissed <31,245non-standard karabinerToolbelt3,830MIT/Apache-2.0 karabiner-driverkitMinimal Karabiner-DriverKit-VirtualHIDDevice wrapper for kanata16,656LGPL-3.0API bindings karabiner-onetimeonetime lock, useful sometimes.5,300MIT/Apache-2.0 karabiner-rcmd-binderTUI for configuring Karabiner-Elements right_command key bindings32MIT karabiner-thunklazy evaluation for rust4,671MIT/Apache-2.0 karabinuxKarabinux library1,982Unlicense karabinux_cliCLI for Karabinux1,854Unlicense karacCompiler for the Kāra programming language. Pre-release name reservation; the real compiler will replace this version. See…19MIT OR Apache-2.0Compilers karaconvConverter from Karabiner to Karabiner-Elements configuration format3,690MITCommand line utilities karak-blsKarak BLS SDK2,769BUSL-1.1 karak-cliKarak CLI954BUSL-1.1 karak-contractsKarak Contracts6,755BUSL-1.1 karak-kmsKarak Key Management SDK6,756BUSL-1.1 karak-p2pKarak P2P SDK2,266BUSL-1.1 karak-rsKarak Rust SDK5,663BUSL-1.1 karaka-cliKaraka language CLI: run and REPL (Devanagari-first, Sanskrit-native)19Apache-2.0Command line utilities karaka-coreKaraka language core: lexer, parser, evaluator32Apache-2.0Compilers karakupKarak CLI installation manager934BUSL-1.1 karakuriAn automata framework in development that helps in the creation of chatbots and other "intelligent" agents in Rust.1,473MIT karamapperTool to create keymapping for kerabiner-elements1,244MIT karaorustKaroke on console2,815WTFPL karatsuba-rsKaratsuba Implementation In Rust1,673MIT karaty-blueprintKaraty template develop blueprint4,097MIT OR Apache-2.0 karaty-docsitedocsite karaty template2,079MIT OR Apache-2.0 karaty-templatedefault karaty template3,529MIT OR Apache-2.0 karbon-cliKarbon — unified CLI for Rust + SvelteKit full-stack projects619non-standard karbon-frameworkKarbon — Rust full-stack web framework with batteries included634non-standard karbon-macrosProcedural macros for Karbon framework (route annotations, controller macros)760non-standard karbucheDOJ-aligned inmate tablet monitoring engine. Supervised classification and K-Means clustering over .mp4 session signals produce…41MITAlgorithmsData structures kardChip card interface device (CCID) implementation for embedded devices3,882MIT/Apache-2.0CryptographyEmbedded development kardo-cliKardo — AI-readiness score for your Git project. Score 0-100 across Freshness, Configuration, Integrity, Agent Setup, Structure.…45MITCommand line utilitiesDevelopment tools kardo-coreCore scoring engine for Kardo. Analyzes Git repos for AI-readiness across 5 weighted components. Calibrated on 84 real-world…98MITDevelopment toolsDevelopment tools::Testing kardo-gateKardo Gate — Documentation quality gate for GitHub PRs98MITDevelopment tools karePrune your test suite — deletion triage from CI artifacts and run history. Built for PHPUnit, accepts any JUnit XML30MIT kare-coreCore parsing and analysis logic for kare, a test pruning triage tool38MIT karel-the-dog-rsA headless recreation of the karel the dog API from codehs5,094GPL-3.0-only karenDetect if you are running as root, restart self with sudo or any other wrapper if needed or setup uid zero when running with the…20,414MIT OR Apache-2.0 karet-coreShared vocabulary (geometry, text coordinates, neutral models) for the karet TUI editor toolkit.404MIT OR Apache-2.0Command line utilitiesText editors karet-dapAsync Debug Adapter Protocol client for karet TUI editors (breakpoints, variables, call stack).155MIT OR Apache-2.0Command line utilitiesText editors karet-diffPure, syntax-aware text diffing engine (tree-sitter structural diff with line/word fallback) for karet.165MIT OR Apache-2.0Command line utilitiesText editors karet-editorThe composable ratatui code-editor widget for karet (gutter, minimap, folds, visual aids, snippets).216MIT OR Apache-2.0Command line utilitiesText editors karet-filetypeFile-type classification and presentation metadata (display name, icon glyphs, category, renderer routing) for the karet editor…311MIT OR Apache-2.0Command line utilitiesText editors karet-fileviewA read-only ratatui widget that renders any file — highlighted code, images, hex dumps, and placeholders — behind one dispatch.175MIT OR Apache-2.0Command line utilitiesText editors karet-lspAsync LSP client for karet TUI editors (diagnostics, completion, hover, goto, symbols, inlay hints, …).135MIT OR Apache-2.0Command line utilitiesText editors karet-pdfHeadless, pure-Rust PDF page rasterization (via hayro) producing RGBA pixels for terminal image rendering.155MIT OR Apache-2.0Command line utilitiesText editors karet-searchIn-file and workspace code search & replace (gitignore-aware, streaming) for karet.137MIT OR Apache-2.0Command line utilitiesText editors karet-syntaxTree-sitter syntactic analysis (highlighting, fold regions, brackets) for karet TUI editors.238MIT OR Apache-2.0Command line utilitiesText editors karet-textHeadless rope text-editing model (buffer, undo/redo, cursors & selections) for karet TUI editors.243MIT OR Apache-2.0Command line utilitiesText editors karet-themeTheme model and loaders (.tmTheme, VS Code JSON) with WCAG contrast checking for karet.239MIT OR Apache-2.0Command line utilitiesText editors karet-treesitterShared tree-sitter parse host (incremental parsing, tree cache, query running) for karet.287MIT OR Apache-2.0Command line utilitiesText editors karet-vcsEditor-oriented git integration (status, blame, branches, staging) for karet TUI editors.139MIT OR Apache-2.0Command line utilitiesText editors kargaA small, flexible load-testing framework for Rust791MITDevelopment tools::Profiling karga-httpKarga adapters for the main web protocols80MITDevelopment tools::Profiling karga_macrosProc macros for the karga load testing framework510MITDevelopment tools::Profiling kargoKono's personal cargo++.740MITCommand line utilities kargsBasic argument parser1,783MIT kariAn embeddable programming language, writting in and for Rust1,9230BSDCommand line utilitiesConfiguration karicsA high-performance web framework for Rust with a focus on developer productivity and speed.8,986Apache-2.0 karima-anchor-langSolana Sealevel eDSL7,844Apache-2.0 karima-anchor-splCPI clients for SPL programs7,242Apache-2.0 karima-nova-ntokenNova finance nToken1,639Apache-2.0 karkasShared framework for vladasz desktop/web/mobile apps19MIT OR Apache-2.0 karkinosPowerful and flexible web scraper with YAML configuration, supporting pagination, data transformations, caching, and multiple…189MITCommand line utilitiesParser implementations karlo-rsKakao's Karlo API Rust wrapper3,226MIT karmaA sophisticated Hidden Markov Model (HMM) implementation using the Baum-Welch algorithm2,401MITAlgorithmsMathematics karma-p2pcore p2p library for karma.6,625MIT karma-p2p-wasmwebrtc wasm in browser impl of karma.4,100MIT karma-p2p-webrtcwebrtc host impl of karma.6,491MIT karmarkarKarmarkar algorithm for Rust.6,659MIT karmelietA rusty triple store1,182MIT karmenA rust client library for the Karmen framework3,965MIT karmisttodoist, but for gigachads33GPL-3.0-or-laterCommand-line interfaceCommand line utilities karoSpreadsheet export4,628AGPL-3.0+ karo-common-rpcKaro RPC library3,691MITNetwork programming karpal-algebraAbstract algebra structures for the Industrial Algebra ecosystem1,031Apache-2.0No standard libraryRust patterns karpal-arrowCategory and Arrow hierarchy for the Industrial Algebra ecosystem293Apache-2.0No standard libraryRust patterns karpal-coreHKT encoding, Functor, Semigroup, Monoid for the Industrial Algebra ecosystem1,675Apache-2.0No standard libraryRust patterns karpal-diagramMonoidal categories and string diagrams for the Industrial Algebra ecosystem131Apache-2.0No standard libraryRust patterns karpal-effectMonad transformers and effect system for the Industrial Algebra ecosystem220Apache-2.0No standard libraryRust patterns karpal-freeFree constructions (Coyoneda, Yoneda) for the Industrial Algebra ecosystem327Apache-2.0No standard libraryRust patterns karpal-higher2-categories, enriched categories, and bicategories for the Industrial Algebra ecosystem112Apache-2.0No standard libraryRust patterns karpal-opticsProfunctor optics (Lens, Prism) for the Industrial Algebra ecosystem424Apache-2.0No standard libraryRust patterns karpal-profunctorProfunctor hierarchy (Profunctor, Strong, Choice) for the Industrial Algebra ecosystem505Apache-2.0No standard libraryRust patterns karpal-proofAlgebraic law witnesses and refinement types for the Industrial Algebra ecosystem924Apache-2.0No standard libraryRust patterns karpal-proof-deriveDerive macros for algebraic law verification in the Industrial Algebra ecosystem852Apache-2.0No standard libraryRust patterns karpal-recursionRecursion schemes (cata, ana, hylo, para, apo, histo, futu, zygo, chrono) for the Industrial Algebra ecosystem242Apache-2.0No standard libraryRust patterns karpal-schubert-typesSchubert intersection type system for the Industrial Algebra ecosystem426Apache-2.0No standard libraryRust patterns karpal-stdStandard prelude re-exports for the Karpal ecosystem167Apache-2.0No standard libraryRust patterns karpal-toposTopos-theoretic constructions: small categories, presheaves, sieves, the subobject classifier, Grothendieck topologies, and…15Apache-2.0No standard libraryRust patterns karpal-verifyExternal prover bridge and trust model for the Industrial Algebra ecosystem770Apache-2.0No standard libraryRust patterns karpal-verify-deriveDerive and attribute macros for Karpal verification obligation export690Apache-2.0No standard libraryRust patterns karplusKarplus-Strong algorithm implementation.2,682 karrot-permalinkPermalink URL parser for Karrot's web contents3,888MIT karrycharonartKarry Charo's Art2,682MIT OR Apache-2.0 karsaUser friendly TUI library4,006non-standard karsherkarsher is a dumb cache written in rust26,751MIT karstA library for high-performance rendering of massive volumetric images1,220MIT OR Apache-2.0 kart-apple-gla graphics engine using gl, glfw, and cgmath (kart-graphics-engine > KartApple-GL > kartapple-gl5,326MIT kart-graphics-enginea graphics engine using gl, glfw, and cgmath for 2d and 3d games7,424MIT kartaA toy linker. Reserving the name for the time being.1,683MIT KartApple-GLa graphics engine using gl, glfw, and cgmath1,272MIT kartoffelBuilding blocks for a kartoffel bot1,438MIT kartonSimple, performant, configurable, entirely self-contained Pastebin and URL shortener.3,277BSD-3-Clause kartyImplementation playing cards6,858non-standardGames karty_proc_macroProcedural macros for crate `karty`5,913non-standardGames karuAn embeddable policy engine focusing on structural pattern matching over arbitrary JSON data45MITAuthentication karu-cliCLI for the Karu policy engine20MIT karutinExperimental coroutine crate25GPL-2.0 karutin_proc_macroCheck out 'karutin' crate!95GPL-2.0 karx_crateKarx's crate1,680MIT karyon_async_rustlsAsync rustls wrapper supporting both smol and tokio runtimes for the Karyon library.28,032GPL-3.0AsynchronousCryptography karyon_coreEssential utilities and core functionality for the Karyon library.32,525GPL-3.0Asynchronous karyon_eventemitterA lightweight, asynchronous event emitter for Rust1,895GPL-3.0Asynchronous karyon_eventemitter_macroProcedural macros for karyon_eventemitter.2,058GPL-3.0Development tools karyon_jsonrpcA fast and lightweight async JSONRPC2.0 implementation.30,567GPL-3.0AsynchronousNetwork programming karyon_jsonrpc_macroProcedural macros for karyon_jsonrpc.30,986GPL-3.0Development tools karyon_netA layered async networking stack over TCP, QUIC, UDP, and Unix sockets, with composable layers for TLS, WebSocket, and SOCKS5.31,522GPL-3.0AsynchronousNetwork programming karyon_p2pA lightweight, extensible, and customizable p2p network stack.126MITAsynchronousNetwork programming karyon_swarmSwarm layer for protocol-aware peer groups on top of karyon_p2p.81MITAsynchronousNetwork programming kasA pure-Rust GUI toolkit with stateful widgets40,121Apache-2.0GUI kas-coreKAS GUI / core17,848Apache-2.0GUI kas-dylibKAS GUI / dylib11,110Apache-2.0GUI kas-gtkGTK adaptor to KAS, the GUI Toolkit Abstraction System3,290Apache-2.0GUI kas-imageKAS GUI / widgets265Apache-2.0GUI kas-macrosKAS GUI / macros35,655Apache-2.0GUI kas-resvgKAS GUI / widgets12,630Apache-2.0GUI kas-softKAS GUI / softbuffer front-end340Apache-2.0GUI kas-textText layout and font management39,227Apache-2.0Text processing kas-themeKAS GUI / theme support16,274Apache-2.0GUI kas-viewKAS GUI / view widgets10,810Apache-2.0GUI kas-wgpuKAS GUI / wgpu front-end31,847Apache-2.0GUI kas-widgetsKAS GUI / widgets16,401Apache-2.0GUI kasaCLI for communicating with TP-Link Kasa smart devices211MIT kasa-coreCore library for communicating with TP-Link Kasa smart devices628MIT kasa-prometheusPrometheus metrics exporter for TP-Link Kasa smart home devices115MIT kasa_exporterPrometheus exporter for TP-Link kasa devices3,038MIT kasaneTetter REST API client library2,171MITAPI bindings kasane-logicThis is Kasane-logic1,903MIT kasane-plugin-sdkSDK for writing Kasane WASM plugins23MIT OR Apache-2.0Development tools kasane-plugin-sdk-macrosProc macros for the Kasane WASM plugin SDK84MIT OR Apache-2.0Development tools::Procedural macro helpers kaseConvert from one case to another. Input case is determined on a best-guess basis, but can be overridden with the --from flag.3,863MIT kase_tictactoeA simple tictactoe game you can play with a friend.20MIT kasedenvRead environment variables by lower, upper case or case-insensitive keys1,606BSD-3-Clause kasettoA declarative AI agent environment manager, written in Rust.485MIT OR Apache-2.0 kashFunction and method cache and memoization11,613MITCachingData structures kash_macrosFunction and method cache and memoization12,435MITCachingData structures kashan786_cli_appA command-line utility for various file operations.977MIT kashidaInsert Kashidas/Tatweel into Arabic text, e.g. for justification purposes.10,806MIT kasiSmall command line tool for communication with HS100 smart wifi plugs and similar devices.913MIT OR Apache-2.0 kasi-kuleAn implementation of CIECAM02 color spaces in Rust7,726non-standardComputer visionScience kasimirCrate for communication with HS100 smart wifi plugs and similar devices.1,183MIT OR Apache-2.0 kasimir-sysSmall helper crate for communication with HS100 smart wifi plugs and similar devices.1,424MIT OR Apache-2.0