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.

hayro-jbig2A memory-safe, pure-Rust JBIG2 decoder.565,897Apache-2.0 OR MIT hayro-jpeg2000A memory-safe, pure-Rust JPEG 2000 decoder.475,309Apache-2.0 OR MIT hayro-postscriptA lightweight PostScript scanner.206,964Apache-2.0 OR MIT hayro-svgConverting PDF pages into SVG files.1,128,388Apache-2.0 OR MIT hayro-syntaxA low-level crate for reading PDF files.1,320,992Apache-2.0 OR MIT hayro-writeA crate for rewriting pages of a PDF file.1,002,979Apache-2.0 OR MIT haystack-clientClient library and CLI tool for interacting with haystack servers1,554MIT haystack-typesHaystack types and traits for Rust.831MIT haystack_coreCore traits and types for Terraphim haystack integrations754MIT haystack_jmapJMAP haystack provider for Terraphim AI190MIT haystackfmGPU-accelerated FM-index construction for DNA sequences via WebGPU19Apache-2.0AlgorithmsData structures hayvoreHayvore Platform1,536MIT hazA thin abstraction over polymorphic environments3,439MITRust patterns haz-allocA general-purpose allocator written in Rust8,893MIT OR Apache-2.0Memory management haz-alloc-coreA general-purpose allocator written in Rust, without system symbols7,377MIT OR Apache-2.0Memory managementNo standard library haz-alloc-internalInternal implementation for haz-alloc2,259MIT OR Apache-2.0 haz-cacheContent-addressed cache for haz task outputs using BLAKE3.100AGPL-3.0-or-laterCaching haz-cache-keyCache-key derivation from workspace state for haz.52AGPL-3.0-or-laterDevelopment tools haz-cliCommand-line task runner: tracks task DAGs across a workspace of projects, executes them with caching.38AGPL-3.0-or-laterCommand line utilitiesDevelopment tools::Build Utils haz-configYAML configuration parser for haz workspaces, projects, and task files.85AGPL-3.0-or-laterConfigurationParser implementations haz-dagDAG construction and traversal for haz tasks.147AGPL-3.0-or-laterData structuresDevelopment tools haz-discoveryWorkspace and project discovery for the haz task runner.61AGPL-3.0-or-laterDevelopment tools haz-domainShared domain types for the haz task runner (identifiers, paths, errors).243AGPL-3.0-or-laterDevelopment tools haz-execAsync task execution engine for haz.62AGPL-3.0-or-laterConcurrencyDevelopment tools haz-queryQuery evaluator over haz task DAGs.62AGPL-3.0-or-laterDevelopment tools haz-query-langParser and AST for the haz task query language.87AGPL-3.0-or-laterParser implementationsParsing tools haz-targetTarget selection for haz task DAGs.60AGPL-3.0-or-laterDevelopment tools haz-vcsGit helpers for the haz task runner.61AGPL-3.0-or-laterDevelopment tools haz-vfsFilesystem abstraction used by the haz task runner.144AGPL-3.0-or-laterDevelopment tools::Build UtilsFilesystem hazarcA wait-free AtomicArc optimized for read-intensive use cases.37,293MIT OR Apache-2.0CachingConcurrency hazardHazard pointers.13,416Apache-2.0 hazelHybrid Classical/ML-oriented Chess Engine1,627MITGames hazelcast_restA library wrapping Hazelcast Rest API2,574MIT hazelnutA terminal-based automated file organizer inspired by Hazel864GPL-3.0-or-laterCommand line utilitiesFilesystem hazeveilLinux Behavioral Variation Simulator for Privacy Research29GPL-3.0-or-laterCommand line utilities hazler-httpHTTP client utilities for the hazler web crawling framework19MIT hazler-js-parserJavaScript endpoint parser for Hazler20MIT hazler-parserHTML parser for extracting links and endpoints for the Hazler web crawler19MIT hazler-secretsSecret and sensitive data detection for Hazler web crawler20MITCommand line utilitiesWeb programming hazmatA collection of helpers for working with hazardous materials in Rust crates.3,069MIT OR Apache-2.0Rust patterns hazmat-macrosProcedural macros for working with hazardous materials in Rust crates.3,691MIT OR Apache-2.0Rust patterns hazptrhazard pointer based concurrent memory reclamation3,322MIT/Apache-2.0 hazukiReserved for Japanese dictionary generator for Fumizuki1,448MIT OR Apache-2.0 hazyOpaque Debug replacement with per-field configuration12,037MIT hazy-transportA simple network simulator5,035MIT hazy_deriveOpaque Debug replacement with per-field configuration14,261MIT hbHTTP Benchmark Tool22,971MIT hb-authIdentity and permissions for Cloudflare Workers.124MIT hb-corePlaceholder for the SaavyLab hb stack. Coming soon.52MIT hb-d1cType-safe SQL generator for Cloudflare D1 + Rust123MIT hb-flagsPlaceholder for the SaavyLab hb stack. Coming soon.52MIT hb-subsetA wrapper for HarfBuzz font subsetting API10,472MITAPI bindingsEncoding hb46ppClient library for the HTTP-Based IPv4 over IPv6 Provisioning Protocol13MIT OR Apache-2.0 hb_errorUseful macros and traits for creating and handling errors.4,023MIT hb_macrosUseful macros for creating and handling errors. See hb_error crate.6,468MIT hbac-rsFreeIPA Host-Based Access Control (HBAC) rule evaluation17MIT OR Apache-2.0AuthenticationData structures hbackuphbackup is a sample, high-performance, cross-platform backup tool written in Rust. It is designed to be fast, efficient, and easy…22,340MITCommand line utilities hbase-thriftA client for HBase's Thrift Interface23,158MIT OR Apache-2.0 hbbftThe Honey Badger of Byzantine Fault Tolerant Consensus Protocols6,764MIT/Apache-2.0AlgorithmsAsynchronous hbcRandom program that does random stuff1,648GPL-3.0 hbdRemember birthdays easily!1,227GPL-3.0-or-laterCommand line utilities hbgenRuns the handlebars template system on a file, generating static1,705MIT hbkr-rsHashblock Key Rotation8,857WTFPL hbmA hardware buffer allocator8,110MITGraphicsHardware support hbm-minigbmAn unstable HBM C API for minigbm drivers6,319MITGraphicsHardware support hboxCLI tool that leverages container technology to manage packages.11,861MIT hbpchangwoolab's utilities for working without boilerplates4,275MIT hbpasta-rsHashblock Pasta Keys1,613WTFPL hbros-solana-clientSolana Client3,134Apache-2.0 hbros-solana-programSolana Program874Apache-2.0 hbros-solana-program-entrypointThe Solana BPF program entrypoint supported by the latest BPF loader.1,083Apache-2.0 hbros-solana-tpu-clientSolana TPU Client2,427Apache-2.0 hbsRust abstractions for hbs-sys3,126MIT hbs-accRust abstractions for hbs-acc-sys2,980MIT hbs-acc-powRust abstractions for hbs-acc-pow-sys2,949MIT hbs-acc-pow-sysFFI bindings to libhbs-acc-pow6,388MIT OR Apache-2.0 hbs-acc-sysFFI bindings to libhbs-acc6,300MIT OR Apache-2.0 hbs-builderHeartbeats-Simple Build Helper23,891MIT OR Apache-2.0 hbs-cliSimple CLI for generating text from handlebars templates, by feeding them with data from file YAML/JSON.9,809MITCommand-line interfaceCommand line utilities hbs-common-sysCommon FFI bindings to heartbeats-simple libraries25,766MIT OR Apache-2.0 hbs-lmsPure Rust implementation of the Leighton Micali Signature scheme with support for key generation, signature generation and…14,233Apache-2.0CryptographyNo standard library hbs-powRust abstractions for hbs-pow-sys14,660MIT hbs-pow-sysFFI bindings to libhbs-pow18,046MIT OR Apache-2.0 hbs-sysFFI bindings to libhbs6,434MIT OR Apache-2.0 hbsenvsubstSubstitutes the values of environment variables, but with handlebars.2,931MIT hbsxA easy-to-use file encryption tool with compression support229MIT hbwhypwartA fun game where you guess what number the computer has chosen.37MIT OR Apache-2.0 hbxIncremental sync tool1,666Apache-2.0Command line utilities hcHandy calculator for haxor calculations6,671BSD-2-Clause hc-128HC-128 Stream Cipher1,821MIT OR Apache-2.0CryptographyNo standard library hc-256Pure Rust implementation of the HC-256 stream cipher10,064MIT OR Apache-2.0CryptographyNo standard library hc-homie5Provides higher level function implementation for homie5 homie devices (discovery and device implementation).4,696MIT hc-homie5-macrosHelper crate for hc-homie5 to implement procedural macros for homie device creation.2,693MIT hc-homie5-smarthomeHomie Homecontrol base library offering sane defaults for smarthome device nodes like switches, sensors,...3,500MIT hc-mailA terminal viewer for Hack Club Mail41MIT hc-rscreate hosts file23MIT hc-runnerCommand runner for healthchecks.io7,670MIT hc-sr04Raspberry Pi Rust driver for the HC-SR04 ultrasonic distance sensor.6,404GPL-3.0-onlyHardware support hc-vaultA simple crate to interact with hashicorp's vault9,590MIT hc-wasmerHigh-performance WebAssembly runtime7,774MITWebAssembly hc-wasmer-compilerBase compiler abstraction for Wasmer WebAssembly runtime8,559MITNo standard libraryWebAssembly hc-wasmer-compiler-craneliftCranelift compiler for Wasmer WebAssembly runtime2,826MITWebAssembly hc-wasmer-compiler-llvmLLVM compiler for Wasmer WebAssembly runtime2,502MITWebAssembly hc-wasmer-compiler-singlepassSinglepass compiler for Wasmer WebAssembly runtime2,518MITWebAssembly hc-wasmer-deriveWasmer derive macros7,762MIT hc-wasmer-middlewaresA collection of various useful middlewares2,322MITWebAssembly hc-wasmer-objectWasmer Native Object generator2,824MITWebAssembly hc-wasmer-typesWasmer Common Types9,177MIT OR Apache-2.0 WITH LLVM-exceptionData structuresNo standard library hc-wasmer-vmRuntime library support for Wasmer8,726MIT OR Apache-2.0 WITH LLVM-exceptionWebAssembly hc12-atAn embedded-hal driver for the HC-12 serial transceiver module.2,897non-standard hc12-rsA strongly typed, and rusty builder for programming HC-12 radios2,084MITEmbedded developmentNo standard library hc128A implementation of HC-128 stream cipher. support `no_std` environment.12,277MIT hc14-at-rsAn embedded-hal driver for the HC-14 serial transceiver module.1,614non-standard hc256A implementation of HC-256 stream cipher. support `no_std` environment.14,115MIT hc32f448_driver_sysProvide driver function binding for HDSC's HC32F448 MCU.165MIT OR Apache-2.0Embedded developmentHardware support hc32f460_driver_sysProvide driver function binding for HDSC's HC32F460 MCU.147MIT OR Apache-2.0Embedded developmentHardware support hc_apphub_sdkSDK for the AppHub DNA Zomes2,661CAL-1.0 hc_apphub_typesDefinitions used by the AppHub DNA Zomes4,249CAL-1.0 hc_coop_content_sdkStandard development kit for the 'Cooperative Content' Holochain zomes13,189CAL-1.0 hc_coop_content_typesDefinitions used by the 'Cooperative Content' zomes12,000CAL-1.0 hc_crud_capsA CRUD library for Holochain zomes that implement the CAPS pattern (Chained, Header, Permalink, State-based)30,541CAL-1.0 hc_crud_cepsA CRUD library for Holochain zomes that implement the CEPS pattern (Chained, Entry, Permalink, State-based)39,610CAL-1.0 hc_cz_profileA Holochain Coordinator-Zome that stores profile information29,128CAL-1.0Cryptography hc_deepkey_sdkSDK for the Deepkey DNA Zomes61,677Apache-2.0 hc_deepkey_typesDefinitions used by the Deepkey DNA Zomes60,290Apache-2.0 hc_devhub_sdkBase SDK used by the DevHub DNA's SDKs2,824CAL-1.0 hc_dnahub_sdkSDK for the DnaHub DNA Zomes3,172CAL-1.0 hc_dnahub_typesDefinitions used by the DnaHub DNA Zomes5,125CAL-1.0 hc_functionsBiblioteca de teste21MITNo standard library hc_iz_membrane_managerA Holochain Integrity-Zome that helps validates the membrane proof passed into a DNA28,156CAL-1.0Cryptography hc_iz_profileA Holochain Integrity-Zome that stores profile information29,772CAL-1.0Cryptography hc_merklicious_sdkStandard development kit for the 'Merklicious' Holochain zomes1,567CAL-1.0 hc_portal_sdkSDK for the Portal DNA Zomes15,556CAL-1.0 hc_portal_typesDefinitions used by the Portal DNA Zomes19,263CAL-1.0 hc_prefix_indexPrefix indexing of strings for use by type-ahead interfaces in holochain apps5,677Apache-2.0 hc_r2d2_sqliteSQLite and SQLCipher support for the r2d2 connection pool48,348MIT hc_roles_mixinA crate to help hApps add roles to their DNA using the progenitor pattern6,972non-standard hc_seed_bundleSeedBundle parsing and generation library.246,512MIT OR Apache-2.0Cryptography hc_seed_bundle_cliA command-line tool for creating and unlocking Holochain seed bundles474Apache-2.0Command line utilitiesCryptography hc_serde_jsonA JSON serialization file format22,925MIT OR Apache-2.0EncodingNo standard library hc_service_checkA tool for checking the health of tx5 network services48,519Apache-2.0 hc_sleuthTool for diagnosing problems with Holochain95,473Apache-2.0 hc_uniffia multi-language bindings generator for rust2,746MPL-2.0 hc_uniffi_bindgena multi-language bindings generator for rust (codegen and cli tooling)2,534MPL-2.0 hc_utilsHelper functions for holochain hdk development83,106Apache-2.0Cryptography hc_zome_file_storage_coordinatorFile storage zome to store files in holochain5,292MIT hc_zome_file_storage_integrityFile storage zome to store files in holochain5,867MIT hc_zome_peer_status_coordinatorPeer Status zome for any Holochain app3,122MIT hc_zome_profilesProfiles zome for any Holochain app1,659MIT hc_zome_profiles_coordinatorProfiles zome for any Holochain app12,325MIT hc_zome_profiles_integrityProfiles zome for any Holochain app10,624MIT hc_zome_profiles_typesTypes for the hc_zome_profiles zome2,361MIT hc_zome_yjs_coordinatorHolochain provider for yjs3,901Apache-2.0 hc_zome_yjs_integrityHolochain provider for yjs4,350Apache-2.0 hc_zomehub_sdkSDK for the ZomeHub DNA Zomes1,586CAL-1.0 hc_zomehub_typesDefinitions used by the ZomeHub DNA Zomes1,990CAL-1.0 hcaA Rust library for headless Chrome automation and web scraping38MITAPI bindingsWeb programming hcalHexadecimal calendar for terminal45,374MITCommand line utilities hcampCLI for Hippocampus — a local-first memory kernel for AI agents21Apache-2.0Command line utilities hcapA packet capture API around pcap/wpcap4,394MIT OR Apache-2.0 hcaptchahCaptcha client response verification. Validate the hCaptcha response submitted from to your server from the client.106,695MIT OR Apache-2.0Web programming hcaptcha-no-wasmhCaptcha client response verification. Validate the hCaptcha response submitted from to your server from the client.2,412MIT OR Apache-2.0Web programming hcaptcha_deriveDerive macro for hCaptcha. Please use hcaptcha crate.94,958MIT OR Apache-2.0Web programming hcaptcha_derive_no_wasmDerive macro for hCaptcha. Please use hcaptcha-no-wasm crate.1,880MIT OR Apache-2.0Web programming hcb2lua_decompilerA decompiler for HCB scripts to Lua24MPL-2.0 hccHolyC compiler1,994MIT hcctlCommand-line tool for interacting with a https://healthchecks.io account14,178MIT/Apache-2.0 hcdlEasily download and update HashiCorp tools10,467MIT OR Apache-2.0Command line utilities hce-adaptersLossless, pronounceable, encrypted codec for any identifier — reversible, format-preserving, human-readable17MITCryptographyEncoding hce-cliLossless, pronounceable, encrypted codec for any identifier — reversible, format-preserving, human-readable16MITCryptographyEncoding hce-coreLossless, pronounceable, encrypted codec for any identifier — reversible, format-preserving, human-readable50MITCryptographyEncoding hce-fpeLossless, pronounceable, encrypted codec for any identifier — reversible, format-preserving, human-readable28MITCryptography hceguiHactarCE's egui utilities640MIT OR Apache-2.0GUI hcenginenet for Rust1,132MIT/Apache-2.0 hciA parser for the bluetooth Host-Controller Interface (hci), currently supporting a partial implementation of Bluetooth 5.2,229MIT/Apache-2.0Hardware supportNetwork programming hcidHolochain base32 encoding scheme for keys, agents, identifiers, etc97,388Apache-2.0Encoding hcirawThe interface to HCI Raw Sockets2,516MITExternal FFI bindingsNetwork programming hckA sharp cut(1) clone.68,848Unlicense OR MITCommand-line interfaceText processing hclhigh level cryptography library ready for production use9,691MIT OR Apache-2.0Cryptography hcl-editParse and modify HCL while preserving comments and whitespace1,560,248MIT OR Apache-2.0Encoding hcl-primitivesPrimitives used by the HCL sub-languages1,535,786MIT OR Apache-2.0Encoding hcl-rsHCL parser and formatter for rust with serde support1,433,277MIT OR Apache-2.0Encoding hcl-templateA simple wrapper around the `hcl` create to render HCL template strings.2,669MIT hcl2jsonCLI program for converting HCL to JSON4,138MIT OR Apache-2.0Encoding hclogA high configurable logging library for Rust990non-standardDevelopment tools::Debugging hclog_macrosA simple derive macro for crate hclog1,193non-standardDevelopment tools::Procedural macro helpersParsing tools hcloudUnofficial Rust crate for accessing the Hetzner Cloud API52,145MIT OR Apache-2.0API bindingsWeb programming hcluahclua3,744Apache-2.0 hclua-macrohclua macro4,065Apache-2.0 hclua-srchclua1,676Apache-2.0External FFI bindings hclua-tasknet for Rust882MIT/Apache-2.0 hcms-29xxPlatform agnostic driver for HCMS-29XX and HCMS-39XX display ICs1,169MIT OR Apache-2.0Embedded developmentNo standard library hcnetnet for Rust1,896MIT/Apache-2.0 hcnet-strkeyEncode and decode strkeys for Hcnet.7,884Apache-2.0 hcnet-xdrHcnet XDR types, encoding, and decoding.8,216Apache-2.0 hcoLIB: Math and container utilities for Rust. Notice: study purpose, not production ready.475MIT OR Apache-2.0AlgorithmsData structures hcode_functionsBiblioteca de funções da Hcode3,851MITNo standard library hcode_functions2Biblioteca de funções da HCode2,703MIT hcode_functions_daniellyBiblioteca de funções da Hcode2,419MIT hcode_functions_eduardoBiblioteca de funções do curso1,552MIT