All 305,250 crates, alphabetically

hal-arkhal plugin for Ark primitives1,185CC0-1.0 hal-elementshal-elements: an Elements extension of hal11,942CC0-1.0 hal-mik32Rust hardware abstraction layer for MIK32 microcontrollers.70CC0-1.0Embedded developmentHardware support hal-mlHAL: a machine learning library that is able to run on Nvidia, OpenCL or CPU BLAS based compute backends. It currently provides…2,646BSD-3-Clause hal-rsA pure rust library for generating Hal responses.2,482 hal-sdkAsync Rust SDK for the HAL open-archive API (hal.science) — companion crate of chapter 16 of the book Rust (ENI, 2022).15MIT OR Apache-2.0API bindings hal-simAn embedded-hal and embedded-graphics Display simulator.8,054MIT OR Apache-2.0Embedded developmentHardware support hal-simplicityhal-simplicity: a Simplicity extension of hal978CC0-1.0 hal9000Modern abstraction layer2,506MIT OR Apache-2.0 hal_kvA kv hybrid access layer1,335Apache-2.0Filesystem hal_sensor_dhtA Embedded HAL driver for the DHT humidity and temperature sensors.2,638Apache-2.0Embedded developmentHardware support hala-futurehala asynchronous programming primitive types9,226MIT hala-httpHala http protocol implementation.4,298MIT hala-iohala asynchronous io programming primitive types9,019MIT hala-io-driverHala io reactor framework2,483MIT hala-io-testHala asynchronous io test toolkit2,118MIT hala-io-test-deriveHala asynchronous io test proc-macro toolkit2,429MIT hala-io-utilHala io utility tools1,844MIT hala-leveldbGoogle leveldb binding for hala system4,595MIT hala-lockfreeSome lockfree structure for rust9,969MIT hala-netHala network framework1,506MIT hala-opsHala extension of std::ops crate8,002MIT hala-pprofHala performance profiling toolkit4,565MIT hala-pprof-deriveproc-macro crate for hala pprof4,930MIT hala-pprof-memoryA memory profile data collector for pprof4,526MIT hala-qtunQuic-based tunneling protocol using the hala-rproxy framework4,636MIT hala-quicHala quic protocol implementation.7,658MIT hala-rproxyreverse proxy for hala os7,381MIT hala-rsHala rust standard library facade6,686MIT hala-syncHala synchronous primitive9,839MIT hala-tcpHala asynchronous network programming primitive type udp8,069MIT hala-testHala test derive crate8,316MIT hala-tlsAsync TLS/SSL streams for hala network programming.7,661MIT hala-udpHala asynchronous network programming primitive type udp8,006MIT halbuDiablo II save file parsing library.1,594MITGames halcyonA modular virtual DOM library1,956MIT halcyon_builda build system for a proper html! macro1,931MIT halcyon_domAn implementation of halcyon's DOM api for wasm-bindgen1,879MIT halcyon_macroHelper macros for halcyon1,876MIT halcyon_macro_implThe implementation of halcyon procedural macro1,882MIT haleInstant network connection quality monitor634MIT halephantA proxy and pooler for Postgres179Apache-2.0 halephant-coreA proxy and pooler for Postgres259Apache-2.0 halfHalf-precision floating point f16 and bf16 types for Rust implementing the IEEE 754-2008 standard binary16 and bfloat16 types.390,535,192MIT OR Apache-2.0Data structuresEncoding half-2Fork of starkat99/half-rs. Half-precision floating point f16 and bf16 types for Rust implementing the IEEE 754-2008 standard…3,003MIT OR Apache-2.0Data structuresEncoding half-edge-explorerA small Bevy app for learning half-edge mesh traversal and simple topology edits.34MIT OR Apache-2.0GamesVisualization half_edge_meshA basic implementation of the half-edge mesh data structure. It has a bunch of the functions you probably want in a half-edge…14,974MIT half_matrixA Half Matrix implementation. Used mostly to represent many to many boolean representations. For example, if you have A, B,…6,226Apache-2.0 halfbandA high-performance 2x resampling library for audio signals using polyphase filters.1,423MITMultimedia::Audio halfbita free-standing collection of utilities7,954MIT halfbrownMulti backend HashMap for higher performance on different key space sizes16,815,156Apache-2.0/MIT halfcapstRaNslAtE aNy TeXt To ThIs.1,670Apache-2.0 halfcopyCopy a file or directory from device A to device B.291MITCommand line utilities halfedgeA half-edge mesh data structure library for Rust: traversal, topology operations, geometry, subdivision, decimation,…35MIT OR Apache-2.0Data structuresGraphics halfhandLocal-first CLI flight recorder for AI agents38Apache-2.0Command line utilitiesDevelopment tools halfinA {regtest} bitcoin node and indexer runner 🏃‍♂️643MIT OR Apache-2.0 halflingA collection of basic utilities for working with nibbles.17,121MITData structuresEncoding halfpoint_rsHalf-precision floating-point number1,956MIT/Apache-2.0 halfspaceAn experimental CAD tool685MPL-2.0 halftimeHalftimeHash: almost-universal hashing for long strings35Apache-2.0 OR MITCryptographyNo standard library halideFlexible suite of solana developer tooling for devs that have something to do with their time1,317MIT halide-buildA library/utility for building Halide kernels36,823ISC halide-runtimeBindings to the Halide runtime25,653ISC halimaHalima say hello2,876MIT halioHardware abstraction layer for embedded devices with non-blocking tasks and IO1,531MIT OR Apache-2.0 halite-sysUnsafe Rust bindings for libsodium stable.24,555Apache-2.0 halite3bdkBot Development Kit for Halite III1,698non-standardGame developmentGame engines hallA simple and fast storage engine.16Apache-2.0 halldyll-coreCore scraping engine for Halldyll - high-performance async web scraper for AI agents25MITParsing toolsWeb programming halldyll-mediaMedia extraction (images, videos, links) for halldyll scraper25MITMultimediaWeb programming halldyll-parserHTML/CSS parsing and content extraction for halldyll scraper25MITParser implementationsWeb programming halldyll-robotsrobots.txt parser and compliance for halldyll scraper25MITParser implementationsWeb programming halldyll_deploy_podsDeclarative, idempotent, and reconcilable deployment system for RunPod GPU pods25MITCommand line utilitiesDevelopment tools halldyll_memory_modelMulti-user, multi-model memory system for distributed AI agents (Halldyll ecosystem)25MITDatabase interfacesNetwork programming halldyll_starter_runpodRust library for managing RunPod GPU pods - Provisioning, orchestration & state management41MITAPI bindingsAsynchronous halleyThe entry point for the Halley Wayland compositor.113GPL-3.0-onlyGUIOperating systems::Linux APIs halley-apiPublic API types for Halley compositor clients and tools.193GPL-3.0-onlyGUIOperating systems::Linux APIs halley-capitScreen capture and screencopy library for the Halley Wayland compositor.247GPL-3.0-onlyGUIOperating systems::Linux APIs halley-cliCommand-line interface for interacting with and controlling the Halley Wayland compositor.130GPL-3.0-onlyGUIOperating systems::Linux APIs halley-configConfiguration loading and parsing for the Halley Wayland compositor.272GPL-3.0-onlyGUIOperating systems::Linux APIs halley-coreCore layout and window management logic for the Halley Wayland compositor.322GPL-3.0-onlyGUIOperating systems::Linux APIs halley-ipcInter-process communication protocol for the Halley Wayland compositor.332GPL-3.0-onlyGUIOperating systems::Linux APIs halley-liftSearch and action launcher for the Halley Wayland compositor.19GPL-3.0-onlyGUIOperating systems::Linux APIs halley-portalNative xdg-desktop-portal ScreenCast and Screenshot backend for the Halley compositor.20GPL-3.0-onlyGUIOperating systems::Linux APIs halley-wlWayland backend and rendering implementation for the Halley Wayland compositor.171GPL-3.0-onlyGUIOperating systems::Linux APIs hallib-rsGeneral types and functions that I use a lot1,406MIT OR Apache-2.0 hallingsStyling framework for Yew ✂3,987MIT halloOutcome planning for upcoming projects using Monte Carlo simulations3,935non-standard hallo-cliA dummy app to show my german greeting660MITCommand line utilities hallomaiA rust converter USFM<->USJ<->USX6,789MIT hallouminateA markdown corpus indexer for LLMs to build and query their own per-repo wikis.243MIT hallouminate-adaptersAdapters layer for hallouminate.68MIT hallouminate-configConfig layer for hallouminate.24MIT hallouminate-daemonDaemon layer for hallouminate.20MIT hallouminate-domainDomain layer for hallouminate.73MIT Halloyplaceholder for Halloy1,634MIT hallrAn experimental Blender addon2,432AGPL-3.0-or-later hallucination-detectionExtremely fast Hallucination Detection for RAG using BERT NER, noun, and number analysis5,906MIT haloelm inspired state manager in rust2,458MIT halo-corehalo core（配置/服务基础能力）339Apache-2.0 halo-macrosProcedural macros for halo-rest (e.g., #[handler])233Apache-2.0 halo-microhalo facade crate（对外统一入口：halo_micro::core / halo_micro::rest）33Apache-2.0 halo-resthalo rest (web glue layer / middleware / routing DSL)134Apache-2.0 halo-spiderA fast, async web crawling framework inspired by Scrapy, built in Rust86MITAsynchronousWeb programming halo-sqlbuilderComposable SQL builder and argument collector46MIT halo2[BETA] Fast zero-knowledge proof-carrying data implementation with no trusted setup1,737,600MIT/Apache-2.0Cryptography halo2-axiomFast PLONK-based zero-knowledge proving system. This is a fork of <https://github.com/privacy-scaling-explorations/halo2>, which…286,849MIT OR Apache-2.0Cryptography halo2-axiom-gpuA Halo2 proving and verifying crate with a CUDA-accelerated KZG prover on BN254.27MIT OR Apache-2.0Cryptography halo2-baseEmbedded domain specific language (eDSL) for writing circuits with the [`halo2`](https://github.com/axiom-crypto/halo2) API. It…245,571MIT halo2-core[BETA] Fast proof-carrying data implementation with no trusted setup1,309non-standard halo2-eccIn-circuit elliptic curve library for halo2.233,952MIT halo2-solana-verifierno_std PSE Halo2 (BN254/KZG/SHPLONK) proof verifier for Solana BPF19MIT OR Apache-2.0CryptographyNo standard library halo2-wasmWasm bindings for the halo2 circuit library.3,218MIT halo2_devDeveloper tooling for Halo 21,629MIT OR Apache-2.0 halo2_gadgetsReusable gadgets and chip implementations for Halo 21,274,209MIT OR Apache-2.0Cryptography halo2_legacy_pdqsortA copy of the core::slice::sort module from the Rust 1.56.1 standard library, modified to behave the same on 32-bit platforms as…899,760MIT OR Apache-2.0Algorithms halo2_poseidonThe Poseidon algebraic hash function for Halo 2615,491MIT OR Apache-2.0Cryptography halo2_proofsFast PLONK-based zero-knowledge proving system with no trusted setup2,966,593MIT OR Apache-2.0Cryptography halo2_summarizerA summarizer for Halo2's MockProver output2,701MIT halo2curvesElliptic curve implementations and wrappers for halo2 library947,796MIT/Apache-2.0 halo2curves-axiomElliptic curve implementations and wrappers for halo2 library. This is a fork of the "halo2curves" crate for Axiom's production…352,210MIT/Apache-2.0 halo2deriveDerive macros for halo2curves fields.602,149MIT/Apache-2.0 halo_testtest crate1,557MIT haloforge-plugin-apiPlugin API for HaloForge — traits and types for building native HaloForge plugins474MITDevelopment toolsGame development haloumiEntrypoint crate for the Haloumi framework.150non-standardCompilers haloumi-backendGeneric backend API of the haloumi framework.396non-standardCompilers haloumi-coreCore types and traits of the Halo2 frontend for LLZK1,380non-standardCompilers haloumi-irIntermediate representation of the haloumi framework.1,125non-standardCompilers haloumi-ir-baseTypes used by the IR and by some modules that the IR depends on.317Apache-2.0Compilers haloumi-ir-genIR generation step of the haloumi lowering pipeline.542non-standardCompilers haloumi-llzkHaloumi backend to LLZK.217non-standardCompilers haloumi-loweringCore traits for enabling types to integrate with the codegen module.1,093non-standardCompilers haloumi-picusHaloumi backend to the Picus Constraint Language.217non-standardCompilers haloumi-synthesisSynthesis step of the haloumi lowering pipeline.558non-standardCompilers halpA CLI tool to get help with CLI tools 🐙17,113MIT OR Apache-2.0Command line utilities haltProvides worker threads that can be paused, stopped, and resumed.14,661MIT OR Apache-2.0Concurrency halt_and_catch_fireHalt and catch fire.942MIT OR Apache-2.0 halterProgrammatic agent runtime, protocol, and tool harness93non-standardDevelopment tools halter-brush-builtinsHalter vendored fork of brush-builtins118MITCommand line utilitiesDevelopment tools halter-brush-coreHalter vendored fork of brush-core135MITCommand line utilitiesDevelopment tools halter-configConfig crate for halter124non-standard halter-hooksHooks crate for halter145non-standard halter-protocolProtocol crate for halter243non-standard halter-providersProviders crate for halter152non-standard halter-runtimeRuntime crate for halter114non-standard halter-sessionSession crate for halter136non-standard halter-toolsTools crate for halter138non-standard haltiaHaltia.AI Software Development Kit (SDK) for Rust2,370UnlicenseAPI bindingsText processing haltia-sysHaltia.AI Software Development Kit (SDK) for Rust2,438UnlicenseExternal FFI bindings haltian-sdkRust SDK for Haltian Thingsee IoT devices517MITEmbedded developmentHardware support halticA crate for cancellable services2,741MIT/Apache-2.0 haltonA module for generating Halton sequences12,033MIT/Apache-2.0AlgorithmsNo standard library halveAn interface for referencing and operating over exactly half of a value29MIT OR Apache-2.0 hamA crate with interfaces for small packet radios, with an implementation for RFM69.3,306MIT ham-catsReference implementations for CATS, the ham radio protocol5,526MITEmbedded developmentEncoding hamaHangul Morphological Analyzer1,467Apache-2.0 hamaddrRust implementation of the ARNCE.26Apache-2.0 hamarrAn open-source agentic coding harness (in active development, not yet functional)16Apache-2.0 hambandsHamBands is a small Rust library for checking which amateur radio band a frequency belongs to7,670non-standard hamcallHam Radio callsign analyzer and ClubLog XML parser3,952MPL-2.0 hamcrestA port of the Hamcrest testing library395,087MIT/Apache-2.0Development toolsDevelopment tools::Testing hamcrest2A port of the Hamcrest testing library. Fork of original hamcrest-rust (which is unmaintained) with extra matchers, better docs…810,422MIT/Apache-2.0Development toolsDevelopment tools::Testing hamctyLoad and search country data for ham radio callsigns in the CTY database78CC-BY-SA-4.0Data structures hamdbAn API library for HamDB callsign lookups27MIT hamelinPipe-based query language for security event analytics16,542non-standardCompilersDatabase interfaces hamelin_analysisAnalysis utilities for Hamelin query language6,762non-standard hamelin_datafusionTranslate Hamelin TypedAST to DataFusion LogicalPlans11,137non-standard hamelin_duckdbImplementation of Hamelin in DuckDB1,618non-standard hamelin_evalExpression evaluation for Hamelin query language15,867non-standard hamelin_executorCommon package for executing Hamelin across different backends16,112non-standard hamelin_legacyLegacy AST translation code for Hamelin (to be deprecated)477non-standard hamelin_libCore library for Hamelin query language18,762non-standard hamelin_sqlSQL generation utilities for Hamelin query language14,971non-standard hamelin_translationLowering and IR for Hamelin query language15,223non-standard hamelin_trinoBackend implementation supporting the Hamelin query language in Trino15,307non-standard hamelin_wasmHamelin implementation compiled to WASM1,923non-standard hamiltonPlaceholder for an upcoming time integration library, to be published in 20211,630MIT hamiltonianHamiltonian path solver2,704MPL-2.0 hamlHAML templates for rust4,157MIT hamletHtml token definitions for stream processing7,557MIT/Apache-2.0 hamlib-clientSimple library that implements a client for Hamlib (rigctld)1,417GPL-3.0-only hamlib-syslow-level bindings to hamlib (libhamlib4)50MIT hamlrsA Rust library for parsing [Haml](http://haml.info) templates17,359MITDevelopment toolsParser implementations hamlrs-cliA CLI for convert [Haml](http://haml.info) templates into HTML7,888MITCommand-line interfaceParser implementations hamlxHypi Application Markup Language11,792non-standardWeb programming hammad420This is description1,738MIT hammerSimple one-liner web server.2,294MIT hammer-and-sampleSimplistic MCMC ensemble sampler based on emcee, the MCMC hammer9,706MIT OR Apache-2.0AlgorithmsMathematics hammer-cliHammer is a no-config cli tool for running concurrent tasks with monorepo support9,782MIT OR Apache-2.0 hammersbaldHammersbald - fast persistent store for a blockchain49,499Apache-2.0 hammerspaceA plugin for the loading and management of levels and scenes, and their physical properties36,313MIT OR Apache-2.0 hammertimeBuild & codegen tool for Ordinary8,430AGPL-3.0-only hammerworkA high-performance, database-driven job queue for Rust with PostgreSQL and MySQL support, featuring job prioritization, cron…17,312MITAsynchronousConcurrency hammerwork-webWeb-based admin dashboard for Hammerwork job queues with real-time monitoring, webhook management, event streaming, and…4,272MITDatabase interfacesDevelopment tools hammingCount ones, fast (aka popcount, hamming weight). This provides a performant popcount and bitwise hamming distance for a slice of…1,692,864MIT/Apache-2.0 hamming-bitwise-fastFast bitwise Hamming distance using auto-vectorization with runtime SIMD detection on x86.78,224MIT OR Apache-2.0Algorithms hamming-bowProduces binary term frequency bit arrays for hamming-space bag of words1,672MITComputer visionNo standard library hamming-dictGenerates codeword dictionaries for hamming-space BoW algorithms9,622MITComputer visionNo standard library hamming-heapAmortized constant time min heaps for binary features in nearest neighbor searches9,075MITAlgorithmsData structures hamming-lshProduces locality-sensitive hashes (LHS) for hamming-space bags of features8,014MITComputer visionNo standard library