All 305,250 crates, alphabetically

kelpie-clientKelpie is a distributed key-value store.2,547MITDatabase interfaces kelpie-protoKelpie is a distributed key-value store.3,792MITDatabase interfaces kelpie-serverKelpie is a distributed key-value store.3,185MITDatabase interfaces kelpsgetA modern, lightweight wget clone written in Rust for fast and reliable file downloads from the command line.3,046MITCommand line utilities kelterKelter — a governed-microkernel runtime for AI agent orchestration (name reserved; initial functional release coming soon).13MIT OR Apache-2.0 kelvinMerkle tree tooklit and backend27,704MPL-2.0 kelvin-btreeBTree Data structure2,482MPL-2.0 kelvin-hamtHAMT Data structure15,907MPL-2.0 kelvin-radixRadix Tree data structure13,031MPL-2.0 kelvin-rsSecure terminal password manager for linux1,631MITCommand line utilities kelvin-two32-3 Tree Data structure11,980MPL-2.0 kemTraits for Key Encapsulation Mechanisms (KEMs): public-key cryptosystems designed to enable a sender (a.k.a. encapsulator) to…3,457,707Apache-2.0 OR MITCryptographyNo standard library kemeleonKemeleon encoding algorithms for obfuscating ML-KEM handshake elements.1,584MIT OR Apache-2.0CryptographyNo standard library kemkemUnverified, unoptimized, and downright dirty implementation of the ML-KEM4,537MITCryptography kemptOrdered collection types with no unsafe code and no_std support21,753MIT OR Apache-2.0Data structuresNo standard library kempt-fmtA pre-commit-friendly multi-language formatter (ktfmt, google-java-format, license headers, whitespace)136Apache-2.0Command line utilitiesDevelopment tools kenCompiler, tooling, and language server for the Ken programming language.15GPL-3.0-onlyCompilersDevelopment tools ken-abiC ABI shared between the Ken compiler and native libraries.18MIT ken-memofsVirtual filesystem with configurable backends.1,305MIT ken-rojoEnables professional-grade development tools for Roblox developers1,380MPL-2.0 ken-test-publishtest publish4,432BUSL-1.1 ken_guessing_gameA short description of my package1,470MIT kenall-rsA commandline tool for Kenall5,366MIT OR Apache-2.0Command line utilities kenbunTerminal system resource monitor for Linux24MITCommand line utilities kendallsKendall's tau rank correlation27,548MITAlgorithmsScience keneth-httpThe http component of the Keneth web framework.44MIT kengaai-animationAnimation system for KengaAI Engine with skeletal animation support71MITGame development kengaai-audioAudio system for KengaAI Engine with spatial audio support71MITGame developmentMultimedia::Audio kengaai-ecsEntity Component System for KengaAI Engine38MITGame development kengaai-fpsThe core FPS rendering and logic crate for the KengaAI Engine.408MITGame enginesRendering kengaai-lodLevel of Detail (LOD) system for KengaAI Engine43MITGame development kengaai-model-loader3D model loader for KengaAI Engine (glTF support)742MITGame developmentRendering::Data formats kengaai-navigationNavigation mesh system for KengaAI Engine43MITGame development kengaai-particlesParticle system for KengaAI Engine41MITGame developmentRendering kengaai-postprocessPost-processing effects for KengaAI Engine39MITGame developmentRendering kengaai-saveSave system for KengaAI Engine with save slot management41MITGame development kengaai-scene-fpsProvides structures and functions for loading KengaAI Engine FPS scenes.580MITGame development kengaai-uiUI system for KengaAI Engine42MITGame developmentRendering kengos_test_rpn_calcISBN: 97848026135141,516MIT kenku_controlA library for manage Kenku FM using Kenku Remote8,464MIT kenlm-rsRust bindings for KenLM language model inference1,115LGPL-3.0-or-laterAPI bindingsScience kenney_input_promptsKenney input prompts1,235MIT OR Apache-2.0 kennitalaThis crate provides a simple way to verify if Icelandic SSN's (kennitala) are valid3,055 kennitolurParse and validate Icelandic government issued ID numbers (kennitölur)9,475MIT OR Apache-2.0 kenny_first_cargo_document_examplefirst crate for fun. I love art and rust.1,538MIT kenobiA cross-plattform Negotiate client implementation.1,238MIT kenobi-coreCommon markers and types for kenobi642MIT kenobi-unixNegotiate/Kerberos client library built on libgssapi-sys454MIT kenobi-windowsA Windows Negotiate implementation.339MIT kensaKensa (検査) - Compliance testing and OSCAL/NIST mapping service24MITCommand line utilitiesDevelopment tools kenshiKenshi (剣士) - GitOps-native test gate operator for Kubernetes24MITCommand line utilitiesDevelopment tools kentTBD1,439GPL-3.0+ kent_test_crateThis is a test crate1,151MIT kentroA high-performance Rust implementation of K-Means clustering algorithms.15,904Apache-2.0 kenvLocal Kubernetes Environment with KinD1,745MITCommand line utilitiesDevelopment tools kenzuProcedural macros for builder pattern generation and validation6,229MIT OR Apache-2.0Development toolsRust patterns kenzu-macroProcedural macros for builder pattern generation and validation196MIT OR Apache-2.0Development toolsRust patterns keonA human readable object notation that syntactic similar to Rust and fully supports Serde's data model.2,218MIT OR Apache-2.0Encoding kepCache any command output137MITCachingCommand line utilities kephaSimple interval gate utilities for terminal loops20MIT OR Apache-2.0Development tools keplarsOfficial Rust SDK for Keplars Email API158MITAPI bindingsEmail keplemonExpanded functionality for the Standardized Astrodynamics Algorithms Library (SAAL)362MIT keplerPermissioned replicating storage for decentralised applications1,718Apache-2.0 kepler-radescription1,558MIT kepler_backoffA backoff algorithm that exponentially increases the time between attempts.1,580MIT keplerianDomain-agnostic Keplerian dynamics: typed anomaly solvers, elements, propagation, Lambert, and transfer search.1,485AGPL-3.0-onlyAerospaceMathematics keplerian-elementsA library for working with orbits and keplerian elements1,524MIT keplerian-orbitsA library for working with orbits and keplerian elements2,688MIT keplerian_simA Keplerian orbit library6,438GPL-3.0-or-laterAerospace::Aerospace simulationsScience keplr-sysBindings for Keplr wallet API4,969Unlicense kepokiKepoki is a Rust-based framework for building AI agents and applications.828MIT OR Apache-2.0 keptonAn open source identity and access management solution4,318MIT OR Apache-2.0 keradb-sdkRust SDK for KeraDB - a lightweight, embedded NoSQL document database with vector search24MITAPI bindingsDatabase implementations keramics-checksumsKeramics checksum calculation methods8,409Apache-2.0 keramics-compressionKeramics decompression methods8,274Apache-2.0 keramics-coreKeramics core9,015Apache-2.0 keramics-datetimeKeramics date and time types8,271Apache-2.0 keramics-encodingsKeramics decoding methods8,297Apache-2.0 keramics-formatsKeramics data formats8,144Apache-2.0 keramics-hashesKeramics digest hash calculation methods491Apache-2.0 keramics-layout-mapKeramics layout map procedural macros8,408Apache-2.0 keramics-pythonKeramics Python bindings197Apache-2.0 keramics-sigscanKeramics data formats signature scanner8,294Apache-2.0 keramics-toolsTools for analysis of data formats198Apache-2.0 keramics-typesKeramics data types8,658Apache-2.0 keramics-vfsKeramics Virtual File System (VFS)6,929Apache-2.0 kerastyKeras for Rust with support for Web Assembly.3,153MITScienceWebAssembly keratinA quick setup/quick development, embedded, modular database21,306GPL-3.0 keratin-logEmbedded append-only log storage engine. Name reserved; the full release is in development.17MIT kerbReal-time telemetry from racing simulators — iRacing, AC Evo, Le Mans Ultimate141MITGame development kerbalobjectsA crate that allows you to read or write a KerbalObject file.95,426GPL-3.0 kerbeirosKerberos client library16,329AGPL-3.0 kerberos-parserParser for the Kerberos protocol1,322,916MIT/Apache-2.0Parser implementations kerberos-sysStraightforward wrapper on krb5 using bindgen2,612GPL-3.0 kerberos_asn1Parse/Build Kerberos ASN1 DER To/From Rust structs32,996AGPL-3.0 kerberos_ccacheLibrary to parse ccache kerberos structures13,613AGPL-3.0 kerberos_constantsConstants used by differente objects and actors of the Kerberos protocol42,908AGPL-3.0 kerberos_cryptoCryptography algorithms for Kerberos47,613AGPL-3.0 kerberos_keytabLibrary to parse keytab kerberos files6,089AGPL-3.0 kerblamA project management tool for data science and bioinformatics10,460MITCommand line utilitiesDevelopment tools kerfSimple tokio-based trace event collector587MIT kerf-cliCommand-line interface for the Kerf G-code verifier (verify / inspect / diff).226MIT OR Apache-2.0Command line utilitiesParsing tools kerf-coreEngine-independent IR, passes, backends, and verifier for the mesh->G-code half of fabrication.286MIT OR Apache-2.0Command line utilitiesParsing tools keriCore library for the Key Event Receipt Infrastructure28,078Apache-2.0 keri-codecKERI event codec: events <-> canonical JSON, SAID computation, and CESR message framing. Under active development.66MIT OR Apache-2.0CryptographyEncoding keri-controllerKERI Identifier Management Library18,465EUPL-1.2 keri-coreCore library for the Key Event Receipt Infrastructure20,054EUPL-1.2 keri-eventsKERI event vocabulary: key events, seals, thresholds, identifiers. Under active development.64MIT OR Apache-2.0CryptographyNo standard library keri-rsSans-IO KERI (Key Event Receipt Infrastructure) core built on cesr-rs. Under active development.176MIT OR Apache-2.0CryptographyNo standard library keri-sdkKERI Software Development Kit1,274EUPL-1.2 kerideImplementation of Key Event Receipt Infrastructure1,555Apache-2.0 keriotkeriot21EUPL-1.2 kerioxImplementation of Key Event Receipt Infrastructure (KERI)1,518Apache-2.0 kerlrust implemenation of the ternary Keccak based hash function for IOTA1,611MIT kerl-pKerl implementation in Rust1,751MIT kermitRelational data structures, iterators and algorithms11,807Apache-2.0 OR MIT kermit-algosAlgorithms used in Kermit7,677Apache-2.0 OR MIT kermit-benchBenchmark definitions, discovery, and caching for Kermit683Apache-2.0 OR MIT kermit-dbRelational databases used in Kermit1,064LGPL-2.1 kermit-deriveKermit derive macros1,674Apache-2.0 OR MIT kermit-dsData structures used in Kermit9,854Apache-2.0 OR MIT kermit-itersIterators used in Kermit8,546Apache-2.0 OR MIT kermit-kvsKey-value stores used in Kermit4,776Apache-2.0 OR MIT kermit-parserParser for Kermit join queries195Apache-2.0 OR MIT kermlSysML.rs13,572UnlicenseNo standard library kernGeneral library for Rust76,696ISC kern-codeKern — a calm, complete desktop code editor (Tauri 2 + React + Monaco)147MITDevelopment toolsText editors kern-shared-cliTerminal help and error rendering helpers for Kern command-line tools.113MITCommand-line interface kern-shared-opsShared SDK installation, archive, and release operations for Kern tooling.108MITCommand line utilitiesDevelopment tools kernalA fluent assertion framework for Rust.5,794MIT OR Apache-2.0Development tools::Testing kernauxSafe binding to libkernaux - auxiliary library for kernel development10,742MITAPI bindingsEmbedded development kernaux-sysUnsafe no-std binding to libkernaux - auxiliary library for kernel development11,485MITEmbedded developmentExternal FFI bindings kernelAbstract Reactive Streams12,341MIT kernel-abi-checkCheck the ABI of Hub Kernels4,791Apache-2.0 kernel-abi-check-pythonCheck the ABI of Hub Kernels50Apache-2.0 kernel-allocMinimalistic Windows Kernel Allocator98,676non-standard kernel-asound-sysALSA kernel bindings (bindgen generated). You probably want the ALSA crate instead.6,633Apache-2.0/MITExternal FFI bindingsOperating systems::Unix APIs kernel-buildHelper crate for building kernel drivers3,649non-standard kernel-builderSelect, build and install kernel version from local sources.15,151non-standard kernel-conformanceConformance harness for recursive inference kernel authority, compiler, and oracle gates74MIT kernel-density-estimationKernel density estimation in Rust.8,600MITAlgorithmsMathematics kernel-elf-parserAn lightweight ELF parser that parses ELF files and converts them into information needed for kernel building61,921GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0No standard library kernel-executionDeterministic K2 execution baseline for recursive inference graphs251MITAlgorithmsScience kernel-explainerKernel event and scheduling explanation library for the Peek process intelligence tool283MITCommand line utilitiesOperating systems::Linux APIs kernel-logWindows kernel printing library.8,051non-standard kernel-logicShared pure-logic kernel: types, registry data model, TOML parsing167MIT kernel-oraclesBounded exact/conservative oracle paths for the recursive inference kernel243MITAlgorithmsScience kernel-printWindows kernel printing library.2,470non-standard kernel-sidecarJupyter Kernel sidecar1,535MIT kernel32-sysContains function definitions for the Windows API library kernel32. See winapi for types and constants.40,825,284MIT kernel_densityImplementation of kernel density estimation as a Rust library.2,636Apache-2.0 kernel_guardRAII wrappers to create a critical section with local IRQs or preemption disabled133,147Apache-2.0No standard libraryOperating systems kernel_webThe purpose of this crate to invoke kernel process9,583MITOperating systems kernelkitCross-platform kernel optimization toolkit with Linux fast paths and safe fallbacks99MITHardware supportMemory management kernelsshippit41Apache-2.0 kernels-dataKernels data structures226Apache-2.0 kernels-data-pythonKernels data structures (Python bindings)101Apache-2.0 kernelspacekernelspace library1,355non-standardNo standard libraryOperating systems kernelvexVEX Controls library168MIT kernelx𐲕3,469Apache-2.0 kernelx-core𐲕2,058Apache-2.0 kernelx-macros𐲕2,280Apache-2.0 kernexUmbrella crate for the Kernex AI agent runtime. Re-exports kernex-runtime.263Apache-2.0 OR MITAPI bindingsAsynchronous kernex-adapter-coreCore Adapter trait and supporting types (AdapterId, Capability, Detection, AdapterRegistry) for Kernex agent adapters.914Apache-2.0 OR MIT kernex-agentCLI dev assistant powered by Kernex runtime63Apache-2.0 OR MITCommand line utilitiesDevelopment tools kernex-coreCore types, traits, config, and error handling for Kernex1,642Apache-2.0 OR MIT kernex-memoryPluggable storage for Kernex: conversations, learning, and scheduled tasks.1,244Apache-2.0 OR MIT kernex-pipelinesTopology-driven multi-agent pipelines with corrective loops for Kernex1,275Apache-2.0 OR MIT kernex-providersAI backend providers for Kernex (Claude Code, Anthropic, OpenAI, Ollama, OpenRouter, Gemini, MCP)1,248Apache-2.0 OR MIT kernex-runtimeThe Rust runtime for AI agents. A composable engine with sandbox, providers, learning, and pipelines.1,117Apache-2.0 OR MIT kernex-sandboxOS-level sandboxing for AI agent subprocesses (Seatbelt on macOS, Landlock on Linux)1,391Apache-2.0 OR MIT kernex-skillsSkills.sh-compatible skill loader and trigger matcher for Kernex1,251Apache-2.0 OR MIT kernlVarious tools for common functionality (early WIP)123MPL-2.0 kernl_proc_macrosProcedural macros for the kernl crate170MPL-2.0 kernlogKernel logger implementation (for low level logging to `/dev/kmsg`).310,182MIT kernoA simple, cross-platform shell written in Rust1,365MIT kerno-detectStateful event correlation and sequence detection21Apache-2.0AlgorithmsData structures kernupKern SDK installer and toolchain manager bootstrap command.76MITCommand line utilitiesDevelopment tools kernutilUtilities for kernel development.23,618Apache-2.0No standard libraryOperating systems keroA simple, approachable framework for creating 2D games in Rust and/or Lua.380MIT kero_sprVariety of sprite rendering types for pixel art games made in Kero.25MIT keroberosAn application to track, manage, and visualize your TCG collection22MIT kerondotfile manager (symlinks, packages)4,298non-standard kerrKernighan Errors for Rust8,187MIT kerrex-gdnative-sysBindings to the GDNative C API3,607MIT kerrorkerror1,584MIT kersDependently type Object-Oriented Data Script1,517MIT keruExperimental GUI library1,505GPL-3.0-onlyGUI keru_macrosMacros for the `keru` crate1,181GPL-3.0-only kerubReserved for WIP crate.1,582MIT keryxWhatsApp CLI wrapper with contact resolution, dual-JID merging, and daemon-aware send92MIT kesKorean Era Script56,682MIT kes-summed-ed25519Key Evolving Signature111,941Apache-2.0Cryptography keshCache library4,678MIT keshikiSimple Image Viewer2,259MIT keshvarcollection of all sorts of useful information for every country34,298BSD-3-ClauseFinanceInternationalization (i18n) kesslerKessler is a library for simulating fragmentation events in low Earth orbit.6,613MIT kestrelActuarial Modeling in Rust1,671Apache-2.0 kestrel-cliKestrel file encryption program8,591BSD-3-ClauseCommand line utilitiesCryptography kestrel-cryptoCryptography backend for Kestrel15,578BSD-3-ClauseCryptography