All 305,250 crates, alphabetically

jacklogEasy way to get logging the way Jack always wants anyway27,787GPL-3.0-or-later jacklog-macroEasy way to get logging the way Jack always wants anyway2,373GPL-3.0-or-later jackosCreates API docuemntation and static website based on intergration tests in the tests folder1,626MIT jackrabbitReal-time Message Queue4,331MIT jackrippergpu tools package1,656MIT jackupA simple backup tool for creating and restoring compressed file snapshots.21MITCommand line utilitiesFilesystem jacobJacob's Awesome Compiler Of BITS4,188MIT jacoponeJacopone implementation in Rust4,861MIT OR Apache-2.0 jacquardSimple and powerful AT Protocol client library for Rust117,840MPL-2.0API bindingsWeb programming::HTTP client jacquard-adapterReusable adapter-support primitives for Jacquard transport/profile implementers225Apache-2.0 jacquard-apiGenerated AT Protocol API bindings for Jacquard120,517MPL-2.0API bindingsWeb programming::HTTP client jacquard-axumAxum server helpers for Jacquard114,748MPL-2.0API bindingsWeb programming::HTTP client jacquard-babelRFC 8966 Babel distance-vector routing engine for Jacquard376Apache-2.0 jacquard-batmanProactive BATMAN-style next-hop routing engine for Jacquard134Apache-2.0 jacquard-batman-bellmanBellman-Ford enhanced BATMAN next-hop routing engine for Jacquard380Apache-2.0 jacquard-batman-classicSpec-faithful classic BATMAN next-hop routing engine for Jacquard369Apache-2.0 jacquard-cast-supportDeterministic cast support helpers for Jacquard transport profiles415Apache-2.0 jacquard-commonCore AT Protocol types and utilities for Jacquard127,194MPL-2.0API bindingsWeb programming::HTTP client jacquard-coreShared identifiers, types, and constants for Jacquard routing1,147Apache-2.0 jacquard-deriveProcedural macros for Jacquard lexicon types126,746MPL-2.0API bindingsWeb programming::HTTP client jacquard-fieldField-style corridor-envelope routing engine for Jacquard142Apache-2.0 jacquard-host-supportReusable host-support primitives for Jacquard transport/profile implementers530Apache-2.0 jacquard-identityATProto identity resolution utilities for Jacquard119,812MPL-2.0API bindingsWeb programming::HTTP client jacquard-lexgenLexicon fetching and code generation binaries for Jacquard840MPL-2.0API bindingsWeb programming::HTTP client jacquard-lexiconLexicon schema parsing and code generation for Jacquard126,821MPL-2.0API bindingsWeb programming::HTTP client jacquard-macrosProcedural macros for Jacquard effect and handler boundaries1,184Apache-2.0 jacquard-mem-link-profileIn-memory link profile and carrier implementations for Jacquard tests532Apache-2.0 jacquard-mem-node-profileIn-memory node profile and node state builders for Jacquard tests510Apache-2.0 jacquard-mercatorDeterministic hybrid corridor routing engine skeleton for Jacquard315Apache-2.0 jacquard-oauthAT Protocol OAuth 2.1 core types and helpers for Jacquard117,500MPL-2.0API bindingsWeb programming::HTTP client jacquard-olsrv2Deterministic OLSRv2-class link-state routing engine for Jacquard377Apache-2.0 jacquard-pathwayFirst-party deterministic pathway routing engine for Jacquard504Apache-2.0 jacquard-reference-clientReference in-memory Jacquard client composition440Apache-2.0 jacquard-repoAT Protocol repository primitives: MST, commits, CAR I/O2,933MPL-2.0API bindingsWeb programming::HTTP client jacquard-routerCanonical router middleware for Jacquard516Apache-2.0 jacquard-scatterDeterministic bounded deferred-delivery routing engine for Jacquard366Apache-2.0 jacquard-simulatorScenario and replay harness for deterministic Jacquard routing analysis95Apache-2.0 jacquard-testkitShared test support for Jacquard integration and end-to-end coverage241Apache-2.0 jacquard-traitsRouting trait definitions for Jacquard970Apache-2.0 jacquesHigh-performance lock-free MPMC queues with horizontal scaling and zero-allocation operation546MIT OR Apache-2.0ConcurrencyData structures jacques_a_ditRule engine generator (Ahead Of Time) as a Wasm module1,868MIT jacsJACS JSON AI Communication Standard18,286Apache-2.0CryptographyData structures jacs-binding-coreShared core logic for JACS language bindings (Python, Node.js, etc.)1,209Apache-2.0 jacs-cliJACS CLI: command-line interface for JSON AI Communication Standard285Apache-2.0CryptographyData structures jacs-coreJACS portable protocol layer (no I/O, no native deps)151Apache-2.0CryptographyNo standard library::No dynamic allocation jacs-duckdbDuckDB storage backend for JACS documents51Apache-2.0Data structuresDatabase interfaces jacs-mcpMCP server for JACS: data provenance and cryptographic signing1,109Apache-2.0CryptographyDevelopment tools jacs-mediaEmbed JACS signed-document JSON in PNG/JPEG/WebP via metadata chunks. 100% Rust, Apache-2.0 / MIT only; no AGPL, no ST3GG code.660Apache-2.0 jacs-postgresqlPostgreSQL storage backend for JACS documents56Apache-2.0Data structuresDatabase interfaces jacs-redbRedb (pure-Rust embedded KV) storage backend for JACS documents16Apache-2.0CryptographyData structures jacs-surrealdbSurrealDB storage backend for JACS documents52Apache-2.0Data structuresDatabase interfaces jactSchedule tasks on tokio using cron-like annotation. Also schedule tasks at an instant or repeat them at a fixed duration.9,302MIT/Apache-2.0Date and time jacuzziJacuzzi is a simple (http & http2) web server for serving SPA (Single Page Applications).2,869Apache-2.0Web programming::HTTP server jadeJade framework for building JAM services2,870GPL-3.0 jade-deriveDerive macros for jade2,442GPL-3.0 jade-testingTesting library for the JAM services2,443GPL-3.0 jadedJava deserialization for Rust14,756MITEncodingParser implementations jaded-deriveDerive implementations for jaded4,521MITEncodingParser implementations jadegateJadeGate - Deterministic Security for AI Agent Skills23MITDevelopment toolsParser implementations jadepJava dependency graph generator1,460MIT jadesJSON Advanced Electronic Signatures (JAdES) — JWS signing and verification implementing ETSI TS 119 182-119BSD-2-ClauseCryptography jadesrandomutilA random util library for Rust for Jade1,482MIT jadexIndex framework for jam programs644GPL-3.0 jadioA modular CLI framework for installing and managing JADIO packages.474MIT jadipaA Rust library for JSON utils like creating and applying JSON Patches (RFC 6902) and JSON Merge Patches (RFC 7396).119Apache-2.0 jaeObject tracking system47MIT jaebsimple snapshot-driven event bus649MITAsynchronousConcurrency jaeb-macrosProc macros for jaeb handler generation and registration458MIT jaeckelRust port of Peter Jäckel's algorithms on http://www.jaeckel.org67,528MITAlgorithmsFinance jaegerdemo project to show off garnish+greenglas+coaster capabilities2,147MIT OR Apache-2.0 jaegercatA handy command line tool showing traces emitted by Jaeger clients6,309MIT jaesveA CLI utility for stream converting JSON objects to a series of CSV values15,762MITCommand line utilities jaffiSupport for the jaffi code generator.3,906MIT/Apache-2.0 jaffi_supportSupport for the jaffi code generator.2,508MIT/Apache-2.0 jagGPU-accelerated 2D rendering and UI toolkit59MITGraphicsGUI jag-drawGPU-accelerated 2D rendering engine built on wgpu300MITGraphicsRendering jag-mediaPart of the jag GPU-accelerated 2D rendering and UI toolkit21MIT OR Apache-2.0 jag-shadersWGSL shader modules for jag-draw364MITGraphicsRendering jag-surfaceCanvas-style drawing API on top of jag-draw221MITGraphicsRendering jag-textText layout and editing utilities for jag365MITRenderingText processing jag-uiUI elements, widgets, and layout for jag-draw148MITGUIRendering jagermeisterasync-std GRPC crate1,714non-standard jaggedjagged provides an API to read data entries from JAG archives.3,132GPL-2.0-only jagged_arrayOwned `[[T]]`-like 2D array where each row can differ in length.10,248MIT/Apache-2.0Data structures jaggedarrayMultidimensional jagged array23,019MITData structures jagoA way to organize your thoughts.3,055MIT OR Apache-2.0 jagua-rsA fast and fearless Collision Detection Engine for 2D irregular Cutting and Packing problems9,911MPL-2.0 jaguarA high-performance, compact binary serialization library576MIT OR Apache-2.0Encoding jaguar-deriveDerive macros for Jaguar serialization804MIT jaiJust Another Interpreter33EUPL-1.2 jailFreeBSD jail library29,655BSD-3-ClauseAPI bindingsOperating systems::Unix APIs jail-cliSandboxed dev environments via containers25MIT jail_exporterPrometheus exporter for FreeBSD jails.14,942MIT jailed-path⚠️ DEPRECATED: This crate has been renamed to 'strict-path'. Please migrate to https://crates.io/crates/strict-path2,294MIT OR Apache-2.0Development toolsFilesystem jailerCrate which helps in creation of sandbox environment4,960MIT jailetKubelet implementation to run FreeBSD jails1,722BSD-2-Clause jailguardPure-Rust prompt-injection detector with 1.5MB embedded MLP classifier. 98.40% accuracy, p50 14ms CPU inference, 8-class attack…59MIT OR Apache-2.0ScienceText processing jailletteKubelet implementation to run FreeBSD jails1,704BSD-2-Clause jaimej.a.i.m.e. is an ergonomic all purpose gradient descent engine13,240MIT jajajvmA safe JVM without any dependency and is so simple, it could put a smile on your face.3,133MIT jakdbJust Another Key-Value Database (currently in development, just earmarking the name)1,275AGPL-3.0-or-later jakeMake-like task executor for Unix OS.1,096non-standard jake_crates_io_testJunk crate. Just testing crates.io upload.1,672MIT OR Apache-2.0 jake_the_dogjake_the_dog is a skeleton project that you can use to start a basic webserver using Rust and PostgreSQL2,841MIT OR Apache-2.0 jakelogemannmy (personal) crate!1,586MIT jakkunight-aliA simple CLI tool for matrix calculation.5,151MIT jalJal is an attempt at making a fresh DCC in rust2,026MPL-2.0 jalaliRust wrappers for libjalali(https://github.com/ashkang/jcal).2,796 jalali-calendarComprehensive Jalali (Persian / Shamsi) calendar: dates, datetimes, timezones, strftime, parsing, arithmetic, and digit utilities.67Apache-2.0Date and timeInternationalization (i18n) jalali-dateConvert Date To Jalali3,296MIT jalali-rsA Rust crate for converting between Gregorian and Jalali (Persian) dates.64MITDate and time jalopyJob running.1,532MIT jaloxcA lox complier422MIT OR Apache-2.0 jamA modern, easy-to-use and fast RPC library2,200MIT jam-bootstrap-serviceThe JAM Bootstrap Service, a simple swiss-army-knife service for JAM Genesis18,093Apache-2.0 jam-bootstrap-service-binThe JAM Bootstrap Service, a simple swiss-army-knife service for JAM Genesis. Prebuilt PVM binary.1,449Apache-2.0 jam-bootstrap-service-commonDatatypes of the JAM Bootstrap Service useful for interoperating and constructing work items24,811Apache-2.0 jam-cliJAM protocol CLI tooling963Apache-2.0 jam-codecLightweight, efficient, binary codec for JAM2,112,618Apache-2.0Encoding jam-codec-deriveSerialization and deserialization derive macro for JAM Codec2,111,149Apache-2.0 jam-nodeJAM protocol node952Apache-2.0 jam-null-authorizerA JAM authorizer which always authorizes14,358Apache-2.0 jam-null-authorizer-binA JAM authorizer which always authorizes. This is the prebuilt binary.1,984Apache-2.0 jam-primitivesJAM protocol primitives862Apache-2.0 jam-program-blobCLI tool to manipulate JAM program blob's metadata.14,301Apache-2.0 jam-program-blob-cliManipulate JAM program blob's metadata972Apache-2.0 jam-program-blob-commonCommon types for building PVM blobs2,082Apache-2.0 jam-pvm-buildCLI utility for building PVM code blobs, particularly services and authorizers13,902Apache-2.0 jam-pvm-builderUtility for building PVM code blobs, particularly services and authorizers28,982Apache-2.0 jam-pvm-commonCommon logic for JAM PVM crates including services and authorizers25,858Apache-2.0 jam-rsJust another (genomic) minhash (Jam) implementation in Rust3,379MITAlgorithmsCommand line utilities jam-std-commonCommon datatypes and utilities for the JAM nodes and tooling9,663Apache-2.0 jam-stress-serviceThe JAM Stress Testing Service1,188Apache-2.0 jam-stress-service-binThe JAM Stress Testing Service pre-built binary1,429Apache-2.0 jam-toolingVarious helpful utilities for JAM tooling developers6,683Apache-2.0 jam-typesJAM protocol datatypes for interoperation between node internals, services and authorizers31,981Apache-2.0 jam_deriveThis macro provides the struct to state machine transformation for the jam crate3,133MIT jam_theme_pickerA Bevy + mdbook enabled template repo to build on.2,923MIT OR Apache-2.0Game developmentGames jamalbi-directional transformations between json and yaml documents2,834MIT jambonJambon — A Discord bot to control Proxmox VE instances28MIT OR Apache-2.0 jambon-bot-commandsDiscord slash command handlers for Jambon46MIT OR Apache-2.0 jambon-bot-coreCore bot framework integration for Jambon38MIT OR Apache-2.0 jambon-bot-i18nInternationalization support for Jambon29MIT OR Apache-2.0 jambon-proxmox-apiProxmox VE REST API client for the Jambon Discord bot60MIT OR Apache-2.0 jamdocsdocumentation tool1,662MIT jamendoJamendo API client2,729MIT jamhashA fast, simple hash function with dual-path accumulation737MIT OR Apache-2.0Algorithms jami-cliJami client for terminal7,434MIT OR Apache-2.0Command line utilities jami-rsJami library in Rust3,975BSD-3-Clause jamjamHandles JAM, PCBOARD message bases & QWK packets.2,720non-standard jamjet-a2aStandalone Rust SDK for the A2A protocol — client, server, coordinator, MCP bridge370Apache-2.0 OR MITNetwork programmingWeb programming jamjet-a2a-protoJamJet A2A protocol bridge — re-exports from jamjet-a2a crate + ProtocolAdapter127Apache-2.0AsynchronousDevelopment tools jamjet-a2a-typesA2A v1.0 protocol types — pure data, zero I/O421Apache-2.0 OR MITData structuresEncoding jamjet-agentsJamJet agent registry, lifecycle, and Agent Card management265Apache-2.0AsynchronousDevelopment tools jamjet-apiJamJet REST API server — control plane for workflow management49Apache-2.0AsynchronousDevelopment tools jamjet-auditJamJet audit log — immutable, append-only record of all security-relevant events90Apache-2.0AsynchronousDevelopment tools jamjet-coreJamJet core execution model — workflow states, node types, retry/timeout policies556Apache-2.0AsynchronousDevelopment tools jamjet-engramEngram — durable memory layer for AI agents. Temporal knowledge graph, semantic search, and MCP-native tools.118Apache-2.0AsynchronousDevelopment tools jamjet-engram-serverEngram MCP server — memory layer for AI agents. MCP stdio + REST API.64Apache-2.0Development toolsWeb programming jamjet-irJamJet canonical Intermediate Representation — workflow IR, validation, serialization468Apache-2.0AsynchronousDevelopment tools jamjet-mcpJamJet MCP client and server — Model Context Protocol support129Apache-2.0AsynchronousDevelopment tools jamjet-modelsJamJet model adapter layer — unified interface for LLM providers111Apache-2.0AsynchronousDevelopment tools jamjet-policyJamJet policy engine — tool blocking, approval requirements, model allowlists166Apache-2.0AsynchronousDevelopment tools jamjet-protocolsJamJet protocol adapter trait — extensible inter-agent communication222Apache-2.0AsynchronousDevelopment tools jamjet-schedulerJamJet scheduler — runnable node detection, queue dispatch, lease management135Apache-2.0AsynchronousDevelopment tools jamjet-stateJamJet durable state — event log, snapshots, SQLite and Postgres backends411Apache-2.0AsynchronousDevelopment tools jamjet-telemetryJamJet telemetry — tracing, metrics, OpenTelemetry exporters169Apache-2.0AsynchronousDevelopment tools jamjet-timersJamJet durable timers — Postgres-backed timer store and cron scheduler69Apache-2.0AsynchronousDevelopment tools jamjet-workerJamJet worker process — task execution, heartbeat, lease renewal68Apache-2.0AsynchronousDevelopment tools jamkitA small game development library.56,477MIT OR Apache-2.0 jamlA Rust library for parsing and formatting JAML (Just Another Markup Language)23MITEncoding jammdbAn embedded single-file database for Rust87,610MIT OR Apache-2.0Database interfacesDatabase implementations jammi-adminThe Jammi control-plane client: a candle-free CatalogService client over the gRPC wire782Apache-2.0 jammi-aiEmbeddable AI engine for inference, embeddings, vector search, and fine-tuning1,628Apache-2.0 jammi-cliCommand-line interface for Jammi AI1,079Apache-2.0 jammi-clientThe Jammi data-plane client: a candle-free typed-RPC + Flight SQL client over the gRPC wire506Apache-2.0 jammi-dataReserved name for Jammi's data-plane client (programmatic gRPC + Flight SQL surface). Placeholder release; the implementation…21Apache-2.0 jammi-dbVector database, SQL federation, mutable companion tables, and trigger broker for Jammi AI1,777Apache-2.0 jammi-encodersCandle-native BERT-family encoders for sentence embeddings, with built-in PEFT support via jammi-lora.1,669Apache-2.0Science jammi-engineQuery engine, catalog, and storage layer for Jammi AI539Apache-2.0 jammi-loraStatic-dispatch PEFT-style LoRA primitives for candle. Closed-enum dispatch, immutable construction, candle-native.2,151Apache-2.0Science jammi-numericsNumerical kernels for vector search, retrieval, statistics, and Bayesian optimization. Pure math, no I/O, no tensor-library…1,913Apache-2.0 jammi-serverOSS Jammi server binary: Arrow Flight SQL, SessionService, TriggerService, and health/metrics endpoints1,430Apache-2.0 jammi-wireThe Jammi gRPC wire substrate: generated jammi.v1 tonic stubs, proto↔domain conversions, and the shared session transport1,121Apache-2.0 jammlJust Another Matrix Math Library4,697Apache-2.0 jammyA collection of libraries that allows you to quicky prototype games in bevy.1,570MIT OR Apache-2.0 jammy_splash_screenJammy bevy crate to add a basic loading splash screen for your bevy game.2,066MIT OR Apache-2.0 jampackOld project. Create a GitHub issue to request Crates.io ownership.4,194Unlicense jamsjams is an easy-to-use CLI application for interaction with J.A.M.S - Just Another Model Server28,159Apache-2.0 jams-clijams-cli is an easy-to-use CLI application for interaction with J.A.M.S - Just Another Model Server12,676Apache-2.0 jams-clientA HTTP and gRPC client library for interacting with J.A.M.S - Just Another Model Server3,684Apache-2.0 jams-corejams-core provides thin abstraction around common machine learning and deep learning models and model stores like AWS S3, Azure…52,556Apache-2.0 jams-protojams-proto is a crate for proto definations used by J.A.M.S2,320Apache-2.0 jams-servejams-serve provides a http and gRPC API for jams-core.35,151Apache-2.0 jamsessionDaemon managing lifecycle of async AI coding agents over ACP31MIT OR Apache-2.0Development tools jamsocketThis repo has been renamed to stateroom.9,567MIT OR Apache-2.0 jamsocket-apiBlocking client for the Jamsocket platform API5,349MIT OR Apache-2.0 jamsocket-cliThis repo has been renamed to stateroom-cli.9,071MIT OR Apache-2.0 jamsocket-serverThis repo has been renamed to stateroom-server.10,538MIT OR Apache-2.0 jamsocket-stdioThis repo has been renamed to stateroom-stdio.5,412MIT OR Apache-2.0