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.
quarb-mssqlMicrosoft SQL Server adapter for the Quarb query engine65MIT OR Apache-2.0
quarb-mysqlMySQL/MariaDB adapter for the Quarb query engine169MIT OR Apache-2.0
quarb-neo4jNeo4j property-graph adapter for the Quarb query engine150MIT OR Apache-2.0
quarb-neptuneAmazon Neptune (openCypher) adapter for the Quarb query engine0MIT OR Apache-2.0
quarb-objstoreObject-store (GCS, S3) adapter for the Quarb query engine149MIT OR Apache-2.0
quarb-oracleOracle Database adapter for the Quarb query engine60MIT OR Apache-2.0
quarb-postgresPostgreSQL adapter for the Quarb query engine181MIT OR Apache-2.0
quarb-redisRedis adapter for the Quarb query engine0MIT OR Apache-2.0
quarb-relationalShared relational model for Quarb's database adapters394MIT OR Apache-2.0
quarb-serveThe Quarb serve protocol: expose any adapter to qua over a child process162MIT OR Apache-2.0
quarb-sessionBackend-agnostic interactive Quarb session — macro history (&N/&N!/&N#) over a pluggable Executor and Store146MIT OR Apache-2.0
quarb-sparqlSPARQL endpoint adapter for the Quarb query engine0MIT OR Apache-2.0
quarb-sqlSQL importer for the Quarb query engine172MIT OR Apache-2.0
quarb-sqliteSQLite adapter for the Quarb query engine224MIT OR Apache-2.0
quarb-tomlTOML adapter for the Quarb query engine229MIT OR Apache-2.0
quarb-xlsxSpreadsheet (xlsx/ods) adapter for the Quarb query engine211MIT OR Apache-2.0
quarb-xmlXML adapter for the Quarb query engine247MIT OR Apache-2.0
quarb-xpathXPath 1.0 importer: translate XPath to Quarb queries176MIT OR Apache-2.0
quarb-yamlYAML adapter for the Quarb query engine230MIT OR Apache-2.0
quarentaArcGIS REST library for Rust1,750Apache-2.0
quariqeReserved crate name for the quariqe project.22MIT
quarithmeticA zero-dependency, constant-time post-quantum cryptography library implementing Ring-LWE KEM and Keccak AEAD encryption.12MIT
quarkTypes for manipulating numeric primitives at the bit level.10,318MIT
quark_appApp crate for general purpose quark engine. Not ready, WIP!3,566MIT OR Apache-2.0
quark_ecsECS crate for general purpose quark engine. Not ready WIP!3,606MIT OR Apache-2.0
quarkdrive-webdavA WebDAV client for quarkdrive12,032MIT
quarkpadA simple game launcher for Linux to manage and launch games using Proton.215Unlicense
quarkpanCommand-line client for Quark Drive based on libquarkpan191GPL-3.0-only
quarkrsA collection of small life improvements for rust.3,007MIT
quarksA general purpose engine. Not ready WIP3,016MIT OR Apache-2.0
quarks-zkQuarks: Quadruple-efficient transparent zkSNARKs - Implementation of Kopis-PC, Dory-PC, and Lakonia/Kopis/Xiphos SNARKs157MIT
quarkstudioA brief description of your crate's functionality21MIT
quarlus-cacheTTL cache with pluggable backends for Quarlus - in-memory caching with expiration25Apache-2.0
quarlus-coreCore runtime for Quarlus web framework - AppBuilder, plugins, guards, and dependency injection185Apache-2.0
quarlus-eventsIn-process typed event bus for Quarlus - publish/subscribe with async handlers25Apache-2.0
quarlus-macrosProcedural macros for Quarlus framework - Controller derive and routes attribute258Apache-2.0
quarlus-schedulerBackground task scheduler for Quarlus - interval, cron, and delayed task execution24Apache-2.0
quarlus-securityJWT/OIDC security module for Quarlus - token validation, JWKS cache, and AuthenticatedUser extractor25Apache-2.0
quarryQuarry is a Rust library for mining type information from the Rust standard library.723MIT
quarry-merge-mineMines multiple quarries at the same time30,288AGPL-3.0
quarry-mineDistributes liquidity mining rewards to token stakers67,095AGPL-3.0
quarry-mine-ntokenDistributes liquidity mining rewards to token stakers3,710AGPL-3.0
quarry-mint-wrapperMints tokens to authorized accounts70,207AGPL-3.0
quarry-mint-wrapper-ntokenMints tokens to authorized accounts4,429AGPL-3.0
quarry-operatorDelegates Quarry Rewarder authority roles.30,393AGPL-3.0
quarry-redeemerRedeems one token for another40,472AGPL-3.0
quarry-registryRegistry of all quarries associated with a rewarder.34,117AGPL-3.0
quarry-registry-ntokenRegistry of all quarries associated with a rewarder.1,588AGPL-3.0
quarterlyRust crate containing types for handling calendar quarters.2,935CDDL-1.0
quartermasterA dead-simple alternate registry suitable for private registries2,814GPL-3.0
quartermaster-cliNavigate the constellations of your codebase - A repository analysis and documentation generator42MIT
quartetNibble (quartet, u4) slices4,454GPL-3.0-or-later WITH GCC-exception-2.0
quarticMusic theory primitives2,080MIT/Apache-2.0
quartoYour friendly Quarto game1,755MIT OR Apache-2.0
quarto-error-reportingStructured, source-aware diagnostics with pluggable rendering (ariadne or annotate-snippets) and a pluggable error-code catalog.1,098MIT
quarto-format-adaptersQuarto-aware stdin adapters for Runic, styler, and AutoCorrect30MIT
quarto-source-mapSource-location tracking with byte-range provenance, for parsers and diagnostics.1,122MIT
quarto-yamlA YAML 1.2 parser that preserves fine-grained source locations (byte ranges) for every node.906MIT
quarto-yaml-validationSchema validation for YAML 1.2 documents, with source-located diagnostics.316MIT
quartzPort of the original Java Quartz Scheduler to Rust3,565Apache-2.0
quartz-cliThe command-line tool to build and test HTTP requests.33,084Apache-2.0
quartz-commonA wrapper crate around quartz-contract-core, quartz-enclave-core, and quartz-proto.7,145Apache-2.0
quartz-contract-coreA CosmWasm framework for securely interacting with Intel SGX enclaves.9,622Apache-2.0
quartz-contract-core-deriveDerive macros for Quartz contracts.11,239Apache-2.0
quartz-cw-proofMerkle proofs of CosmWasm contract state. This crate contains proof types and a verifier implementation.6,812Apache-2.0
quartz-dcap-verifierStandalone CosmWasm smart contract for verifying Intel SGX DCAP attestations that can be called by other contracts.3,091Apache-2.0
quartz-dcap-verifier-msgsMessage and query definitions for the quartz-dcap-verifier contract10,206Apache-2.0
quartz-enclave-coreA Rust framework for building Intel SGX enclaves managed by a CosmWasm contract.7,254Apache-2.0
quartz-messengerA command-line utility for messaging based on libquartz.6,307MIT
quartz-print-fmspcConvenience tool to print the FMSPC (Family-Model-Stepping-Platform-Custom) of the local SGX processor.3,028Apache-2.0
quartz-protoProtobuf types defining the Quartz handshake to initialize connection between a smart contract and trusted execution environment.6,661Apache-2.0
quartz-rsA CLI tool to streamline development and deployment of Quartz applications. Quartz is a flexible framework for privacy-preserving…4,261Apache-2.0
quartz-serverLibquartz server3,903BSD-2-Clause
quartz-tcbinfoStandalone CosmWasm smart contract for storage and verification of TcbInfos for Intel SGX.3,076Apache-2.0
quartz-tcbinfo-msgsMessage and query definitions for the quartz-tcbinfo contract10,221Apache-2.0
quartz-tee-raInternal CosmWasm library for handling Intel SGX DCAP remote attestations.10,302Apache-2.0
quartz-tm-proverCLI for generating a Merkle proof of CosmWasm state and accompanying tendermint light client proof (i.e. verification trace) for…6,519Apache-2.0
quartz-tm-stateless-verifierStateless verification of a tendermint light client proof.6,717Apache-2.0
quartz_commandsGenerates a parser at compile-time for handling commands similar in structure to those of Minecraft.1,762MIT
quartz_commands_macrosThis crate contains the function-like procedural macro which parses quartz_commands's custom syntax.2,591MIT
quartz_nbtProvides support for serializing and deserializing Minecraft NBT data in binary and string form.97,954MIT
quartz_nbt_macrosThis crate contains the function-like procedural macro which parses quartz_nbt's compact compound format.85,005MIT
quartz_schedMinimalistic scheduling library for Rust14,759MIT
quartzctllibquartz based apps manager3,878BSD-2-Clause
quaruA quantum computer simulator2,802MIT
quarveExperimental desktop GUI framework that's multithreaded, declarative and designed for Rust3,288MIT
quarve_cliCLI for quarve that allows you to easily create, run, and deploy quarve applications862MIT
quarve_deriveProcedural macros for quarve1,439MIT
quasarAn experimental rust-to-{wasm,asmjs} frontend framework.2,233MIT
quasar-cliCLI for the Quasar Solana framework234MIT
quasar-deriveProc macros for the Quasar Solana framework — #[account], #[derive(Accounts)], #[program], #[event], #[error_code]1,766MIT
quasar-idlIDL generator for the Quasar Solana framework with discriminator collision detection279MIT
quasar-langZero-copy Solana program framework1,714MIT
quasar-podAlignment-1 Pod integer types for zero-copy Solana account access1,757MIT
quasar-profileSBF binary profiler for the Quasar Solana framework277MIT
quasar-rpcQuasar is a lightweight Solana RPC client built on Hyper.503Apache-2.0
quasar-splSPL Token program CPI and zero-copy account types for the Quasar Solana framework966MIT
quasar-svmLightweight Solana virtual machine for local transaction execution1,033MIT
quasiA quasi-quoting macro system1,028,291MIT/Apache-2.0
quasi-rdGenerate quasirandom Rd sequences1,802MIT
quasi_codegenA quasi-quoting macro system988,368MIT/Apache-2.0
quasi_iterA library that contains supplementary iterator objects and methods.6,541Apache-2.0
quasi_macrosA quasi-quoting macro system504,133MIT/Apache-2.0
quasiconfigQuasiconfig is a Blazingly-fast, hyper-portable, and ultra-extensible configuration management system.558non-standard
quasiquodoCompile-time quasi-quoting for typed languages114Apache-2.0
quasiquodo-tsCompile-time TypeScript quasi-quoting613Apache-2.0
quasiquodo-ts-coreImplementations of Quasiquodo's TypeScript macros831Apache-2.0
quasiquodo-ts-macrosProc macro shims for Quasiquodo's TypeScript macros761Apache-2.0
quasiquotequote compatible quasiquote macro with support for interpolating expressions11,801GPL-3.0-or-later
quasiquote-proc-macroquasiquote proc macro implementation10,167GPL-3.0-or-later
quasirandomQuasirandom number generation7,546MIT
quasivisionA Rust-based pseudo-visual understanding tool. Analyzes screenshots, UI mockups, and real-world photos — detects UI components,…86MIT
quasoToolset for making Micro Games quickly12,254MIT OR Apache-2.0
quasorA high-security AEAD based on a Duplex Sponge construction with SHAKE256, Argon2id, and BLAKE3.2,015Apache-2.0
quatquat20,661MIT/Apache-2.0
quaternionA simple and type agnostic quaternion math library designed for reexporting352,336MIT OR Apache-2.0
quaternion-coreProvides quaternion operations and interconversion with several attitude representations.109,227MIT OR Apache-2.0
quaternion-matrixquaternion matrix for Rust16,052MIT
quaternion-wrapperOperator overloading allows implementation similar to mathematical expressions.6,196MIT OR Apache-2.0
quaternion_averagerA library to average quaternions5,585MIT OR Apache-2.0
quaternionssimple quaternion arithmetic with traits4,290MIT OR Apache-2.0
quatrainNot intended to be a static site generator1,656MIT
quaturnA 3D game engine written in Rust3,468MIT
quaver-rsA Rust library for parsing and analyzing Quaver rhythm game maps361MIT
quavilA performance-optimized AI coding CLI57GPL-3.0-or-later
quavil-authAuthentication for quavil (OAuth2 PKCE, device code, API key)377GPL-3.0-or-later
quavil-configConfiguration loading for quavil558GPL-3.0-or-later
quavil-coreCore agent loop and tool system for quavil177GPL-3.0-or-later
quavil-harness-supportDeterministic harness utilities for quavil228GPL-3.0-or-later
quavil-indexCodebase indexing and semantic search engine for quavil266GPL-3.0-or-later
quavil-providerLLM provider abstraction for quavil (OpenAI, Anthropic, Gemini)321GPL-3.0-or-later
quavil-tuiTerminal UI for quavil117GPL-3.0-or-later
quaxTerminal multi-plexer that is entirely operated with a mouse, and exclusively a mouse.56MIT
quayA private registry and API for Rust1,575MIT OR Apache-2.0
quay-cliAdmin and debug CLI for the Quay program. One subcommand per instruction (init-global, init-market-maker, init-strategy,…98MIT OR Apache-2.0
quay-sdkOff-chain client for the Quay program: instruction builders, account decoders, DSL helpers, and swap simulator.179MIT OR Apache-2.0
quay-tuiA TUI port manager for local processes, SSH forwards, and Docker containers263MIT
quay-vmStack-based pricing-DSL bytecode interpreter for the Quay DEX. no_std, runs bit-identically on Solana BPF and off-chain (routers,…211BUSL-1.1
quazipanacea-cliA knowledge management system to solve all my personal needs.3,913GPL-2.0
qubaitian_hello_cargoA fun game where you guess what number the computer has chosen.1,538MIT
qubaitian_minigrepdemo cargo project for learning.1,536MIT
qubeKubernetes API client with async features (based on kubeclient)8,284MIT
qubedA new data structure to efficiently represent complex data spaces.152Apache-2.0
qubed_meteoMeteorological adapters to the Qubed library.88Apache-2.0
qubicRust implementation of qubic1,767GPL-3.0
qubic_enginequbic engine1,842MIT
qubip_auroraA framework to build OpenSSL Providers tailored for the transition to post-quantum cryptography745Apache-2.0
qubitSeamless RPC for Rust & TypeScript50,973MIT
qubit-argumentStructured, ownership-preserving argument validation for Rust applications238Apache-2.0
qubit-atomicUser-friendly atomic operations wrapper providing JDK-like atomic API1,872Apache-2.0
qubit-batchOne-shot batch execution and processing with sequential and scoped parallel utilities436Apache-2.0
qubit-casTyped compare-and-swap executor with retry-aware conflict handling1,070Apache-2.0
qubit-caseNaming style detection and conversion helpers for Rust applications81Apache-2.0
qubit-clockThread-safe clock abstractions for Rust: monotonic clocks, mock testing, high-precision time meters, and timezone support18,832Apache-2.0
qubit-codecCore codec traits and buffer conversion primitives for Rust637Apache-2.0
qubit-codec-binaryBuffer-oriented binary codecs for Rust21Apache-2.0
qubit-codec-miscMiscellaneous byte and text format codecs for Rust applications109Apache-2.0
qubit-codec-textBuffer-oriented text encoding and decoding utilities for Rust19Apache-2.0
qubit-commandCommand-line process running utilities for Rust549Apache-2.0
qubit-commonFoundational utilities and language-level tools for Rust application development820Apache-2.0
qubit-concurrentConcurrent utilities library providing thread pools, task scheduling, synchronization primitives and other concurrent programming…157Apache-2.0
qubit-configPowerful type-safe configuration management with multi-value properties, variable substitution, and rich data type support1,184Apache-2.0
qubit-datatypeRuntime data type descriptors and conversion utilities for Rust2,172Apache-2.0
qubit-dclReusable double-checked lock executor for Rust lock abstractions258Apache-2.0
qubit-errorShared error handling helpers for Rust applications1,168Apache-2.0
qubit-event-busA lightweight, thread-safe in-process event bus for Rust154Apache-2.0
qubit-execution-servicesAggregated execution services facade for blocking, CPU-bound, Tokio blocking, and async IO tasks158Apache-2.0
qubit-executorExecutor abstractions, task handles, and basic executor implementations for Qubit Rust libraries984Apache-2.0
qubit-fast-casLightweight u64 compare-and-swap cells and retry-aware execution30Apache-2.0
qubit-fsPluggable filesystem abstraction for Rust19Apache-2.0
qubit-functionFunctional programming traits and Box/Rc/Arc adapters for Rust, inspired by Java functional interfaces2,639Apache-2.0
qubit-httpGeneral-purpose HTTP infrastructure for Rust with unified client semantics, secure logging, and built-in SSE decoding245Apache-2.0
qubit-idID generation utilities for Rust, including Qubit Snowflake, classic Snowflake, Sonyflake-style, and fast UUID-like generators121Apache-2.0
qubit-ioByte-stream buffering and std::io utilities for Rust834Apache-2.0
qubit-jsonLenient JSON decoder for non-fully-trusted JSON text inputs158Apache-2.0
qubit-local-filesLocal filesystem utilities for Rust191Apache-2.0
qubit-lockLock utilities library providing synchronous, asynchronous, and monitor-based locking primitives1,188Apache-2.0
qubit-macrosMacros to accompany `qubit`.40,794MIT
qubit-magikaMagika-backed MIME detector integration for qubit-mime181Apache-2.0
qubit-measurePersistent typed measurement values with explicit units and uom adapters49Apache-2.0
qubit-metadataType-safe extensible metadata model for the Qubit LLM SDK457Apache-2.0
qubit-mimeMIME type detection utilities for Rust based on filename glob rules and content magic399Apache-2.0
qubit-mixinTrait mixins for domain objects, providing common properties and behaviors120Apache-2.0
qubit-progressGeneric progress reporting abstractions for Qubit Rust libraries542Apache-2.0
qubit-rayon-batchRayon-backed batch executor implementation for Qubit Rust libraries220Apache-2.0
qubit-rayon-executorRayon-backed CPU-bound executor service for Qubit Rust libraries375Apache-2.0
qubit-retryRetry module, providing a feature-complete, type-safe retry management system with support for multiple delay strategies and…1,592Apache-2.0
qubit-sanitizeReusable field and structured object sanitization utilities for Rust423Apache-2.0
qubit-serdeReusable serde adapters and helper functions for Rust applications1,784Apache-2.0
qubit-spiTyped service provider registry infrastructure for Rust509Apache-2.0
qubit-state-machineA small, thread-safe finite state machine for Rust870Apache-2.0
qubit-taskTask-oriented services built on top of qubit-executor and qubit-thread-pool51Apache-2.0
qubit-text-codecBuffer-oriented text encoding and decoding utilities for Rust21Apache-2.0
qubit-text-ioText-oriented I/O traits and adapters for Rust19Apache-2.0
qubit-thread-poolDynamic and fixed thread pool executor services for Qubit Rust libraries513Apache-2.0
qubit-tokio-executorTokio-backed executor and executor service implementations for Qubit Rust libraries352Apache-2.0
qubit-valueType-safe value container framework with unified abstractions for single values, multi-values, and named values with complete…1,674Apache-2.0
qubithubQubitHub — developer infrastructure for quantum computing. Placeholder for the Rust CLI.23MIT
qubl-rsLow level And flexible query builder that gives you full control of your queries.30,201MIT
qudagQuDAG - Darknet for agent swarms: Ultra-fast quantum-resistant distributed communication platform with DAG architecture, rUv…4,171MIT OR Apache-2.0