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.

qni-core-rsqni core library15,383LGPL-3.0 qnicornRust bindings for the Qnicorn emulator with utility functions1,628GPL-2.0 qnipQiniu IP Query library for Rust1,539MIT qnoteA fast, lightweight terminal-based note-taking application752MITCommand line utilitiesText editors qnsiOfficial Rust SDK for the QNSI Quantum-Native Security Infrastructure — post-quantum cryptography (ML-KEM, ML-DSA, SLH-DSA,…19Apache-2.0API bindingsCryptography qntzVector quantization1,296MIT OR Apache-2.0AlgorithmsScience qnxscreenHigh-level wrapper for the QNX libscreen.so library.17MIT or Apache-2.0 qnxscreen-sysLow-level wrapper for the QNX libscreen.so library.45MIT or Apache-2.0 qoVery cool project is currently WIP! Contact me if you want to use the name.1,647MIT qo_toolsutilities for working with "Quite Ok _" formats from Phobos Labs.1,509non-standard qoaudioQOA audio format decoder in Rust14,340MIT OR Apache-2.0 qobuzQobuz API lirary1,721GPL-2.0-onlyMultimedia qobuz-apiA Rust client library for the Qobuz music streaming API88GPL-3.0-or-later qobuz-cliQobuz CLI client44GPL-2.0-onlyCommand line utilitiesMultimedia qodecReserved name for an upcoming Microsoft QDK error-correction crate. Not yet implemented.18MIT qodeinereserved name1,754MIT qoeurreserved name1,787MIT qogAn extremely simple log library.8,514non-standard qoiVERY fast encoder/decoder for QOI (Quite Okay Image) format54,110,557MIT/Apache-2.0Multimedia::EncodingMultimedia::Images qoi-fastFast encoder/decoder for QOI (Quite Okay Image) format (WIP)1,163MIT qoi_rsRust port of the Quite Okay Image format3,596MIT qoiconvA QOI converter1,573LGPL-2.0-or-laterCompressionMultimedia::Images qoiconv-rsConvert between different image formats and qoi format.1,531MITCommand line utilities qoicoubehVERY fast encoder/decoder for QOI (Quite Okay Image) format61,045MIT/Apache-2.0Multimedia::EncodingMultimedia::Images qolQuality Of Life functions and macros2,999MIT qollageVisualization tool for qoqo quantum computing toolkit by HQS Quantum Simulations10,821Apache-2.0ScienceSimulation qolrusA suite of random but useful functions that are aimed at giving you 'piece of cake' level comfortability.1,468MITDevelopment tools qomoA quantum computing toolkit for learning and visualization.9,480MIT qonductorRust implementation of the Qobuz Connect protocol6,041MIT qonduitA Rust implementation of the CQRS pattern.1,161MITAsynchronousConcurrency qonfucius-sso-utilityA Rust implementation of Qonfucius SSO for resource servers6,233MITWeb programming qontinui-runner-clientTyped HTTP client for the qontinui-runner /spawn-placement endpoints. Layered on qontinui-types::wire.61Apache-2.0 qontinui-typesCanonical DTO types for Qontinui. Rust is the source of truth; TypeScript and Python are generated from JSON Schema emitted by…210Apache-2.0 qooquery builder library. Query Object Oriented.5,782MIT qookqook - Pure Rust unitaryfund/qrack Wrapper19,895MITAPI bindingsEmulators qoolA simple CLI file sharing tool between PC and phone via QR code.1,655MIT AND CC-BY-4.0Command line utilitiesNetwork programming qoollo-log4rs-logstashLogstash appender for log4rs7,007MITDevelopment tools::Debugging qoollo-logstash-rsLogstash sender8,964MITDevelopment tools::Debugging qopA simple and powerful database migration tool.9,761MITCommand line utilitiesDatabase interfaces qoptA simple optimization library.55,398MIT qoqoQuantum computing circuit toolkit. Python interface of roqoqo182,626Apache-2.0Development tools::FFIScience qoqo-aqtAQT backend for qoqo quantum computing toolkit17,046Apache-2.0ScienceSimulation qoqo-iqmIQM backend for qoqo quantum computing toolkit15,290Apache-2.0ScienceSimulation qoqo-macrosMacros for the qoqo crate180,938Apache-2.0ScienceSimulation qoqo-qrydQRyd backend for qoqo quantum computing toolkit57,015Apache-2.0ScienceSimulation qoqo-questQuEST simulator backend for qoqo quantum computing toolkit58,940Apache-2.0ScienceSimulation qoqo_calculatorqoqo-calculator is the calculator backend of the qoqo quantum computing toolkit by HQS Quantum Simulations251,921Apache-2.0ScienceSimulation qoqo_calculator_pyo3Python interface to qoqo calculator, the calculator backend of the qoqo quantum computing toolkit by HQS Quantum Simulations199,826Apache-2.0 qoqo_for_braket_devicesAWS's Braket devices interface for qoqo python quantum computing toolkit22,989Apache-2.0ScienceSimulation qoqo_qasmPython interface of roqoqo_qasm by HQS Quantum Simulations39,243Apache-2.0ScienceSimulation qoqo_qirQIR interface for roqoqo Rust quantum computing toolkit by HQS Quantum Simulations2,962Apache-2.0ScienceSimulation qoqo_qiskit_devicesIBM's Qiskit devices interface for qoqo python quantum computing toolkit26,326Apache-2.0ScienceSimulation qora-flQora: Quorum-Oriented Robust Aggregation for Federated Learning925MIT OR Apache-2.0AlgorithmsCryptography qorbConnection Pooling273,679MPL-2.0 qorechain-pqcQoreChain post-quantum cryptography — FIPS-204 ML-DSA, FIPS-203 ML-KEM, FIPS-202 SHAKE-256, with blockchain helpers.…72Apache-2.0Cryptography qorechain-rdkRust Rollup Development Kit for the QoreChain network.118Apache-2.0API bindings qorechain-sdkQoreChain SDK for Rust: networks, denom/address utils, HD accounts (native/EVM/SVM), ML-DSA-87 PQC signing, typed messages for…138Apache-2.0API bindingsCryptography qorkShorten URLs from your terminal — the qork.me command-line client77PolyForm-Noncommercial-1.0.0Command line utilities qorrectionPTY wrapper that intercepts Vim-style quit commands typed into other CLI tools and responds with playful animations.20MIT OR Apache-2.0Command line utilities qorxQorx Community Edition source CLI for local context-resolution research.44AGPL-3.0-onlyCommand line utilitiesDevelopment tools qosOpenHarmony's qos binding for rust27MIT OR Apache-2.0 qos_clientMultipurpose CLI client for interacting with QuorumOS enclaves and related operations342AGPL-3.0-onlyCommand line utilities qos_coreCore components and logic for QuorumOS applications103,819AGPL-3.0-onlyOperating systems qos_cryptoCryptographic primitives for use with QuorumOS105,559AGPL-3.0-onlyCryptography qos_hexUtilities for encoding and decoding hex strings111,509AGPL-3.0-onlyEncoding qos_jsonCanonical JSON encoding for deterministic JSON39,310AGPL-3.0-onlyEncoding qos_netSocket to TCP proxy for QuorumOS enclave network access78,169AGPL-3.0-onlyNetwork programming qos_nsmAWS Nitro Secure Module attestation endpoints and types105,582AGPL-3.0-onlyCryptography qos_p256Signing and encryption utilities for P-256 keys110,823AGPL-3.0-onlyCryptography qos_test_primitivesTest utilities and helper primitives for QuorumOS crates60,109AGPL-3.0-only qotQuantum of Thought5,003MIT qotdAn implementation of RFC 8652,970 qoxideA lightweight local job queue backed by SQLite262MITData structuresDatabase interfaces qpQuick Pool: High Performance Async Generic Pool10,712MITAsynchronousData structures qp-dilithium-cryptoDilithium post-quantum cryptographic signatures implementation for Substrate3,176MITCryptographyNo standard library qp-human-checkphraseGenerate human-readable checksums from cryptocurrency addresses using BIP-39 words and PBKDF2 to prevent address poisoning attacks497MITCryptographyEncoding qp-plonky2Recursive SNARKs based on PLONK and FRI15,563MIT OR Apache-2.0Cryptography qp-plonky2-coreCore traits and types shared between plonky2 prover and verifier10,685MIT OR Apache-2.0Cryptography qp-plonky2-fieldFinite field arithmetic16,101MIT OR Apache-2.0Cryptography qp-plonky2-verifierPlonky2 verification library - minimal, no-std compatible, no randomness required10,613MIT OR Apache-2.0Cryptography qp-poseidonPoseidon hash implementation for Substrate/Polkadot ecosystem using plonky3 field arithmetic8,605MIT-0Cryptography qp-poseidon-constantsPrecomputed Poseidon2 constants for Goldilocks field15,099MIT-0CryptographyNo standard library qp-poseidon-coreSelf-contained Poseidon2 hash core over Goldilocks13,271MIT-0CryptographyNo standard library qp-postgresQuick Pool: High Performance Async Generic Pool PostgreSQL Adapter2,952MITAsynchronousData structures qp-rusty-crystals-dilithiumPure Quantus RUST implementation of CRYSTALS-Dilithium digital signature scheme8,829GPL-3.0Cryptography qp-rusty-crystals-hdwalletPure Quantus RUST implementation of HD wallet functionality with post-quantum cryptography8,409GPL-3.0Cryptography qp-trieAn idiomatic and fast QP-trie implementation in pure Rust, written with an emphasis on safety.355,606MPL-2.0Data structuresNo standard library qp-wormhole-aggregatorQuantus-Network - Wormhole circuit implementation using Plonky23,386MIT qp-wormhole-circuitQuantus-Network - Wormhole circuit implementation using Plonky26,532MIT qp-wormhole-circuit-builderQuantus-Network - Wormhole circuit implementation using Plonky25,504MIT qp-wormhole-inputsPublic input types for Wormhole circuit proofs4,094MIT qp-wormhole-proverQuantus-Network - Wormhole circuit implementation using Plonky24,334MIT qp-wormhole-verifierQuantus-Network - Wormhole circuit implementation using Plonky25,975MIT qp-zk-circuits-commonQuantus-Network - Wormhole circuit implementation using Plonky26,723MIT qp2pPeer-to-peer networking library using QUIC337,226MIT OR BSD-3-Clause qpackHTTP3 QPACK header compression algorithm accoring to IETF#9204.306MIT qpakAn unofficial Quake PAK file manipulation tool826MITCommand line utilitiesFilesystem qpak-libqpak-lib: Unofficial Quake PAK file modification library1,043MITFilesystemGame development QPalRustA parser and static code analysis tool for quantum circuits, currently under development81BSD-2-Clause qparasQuery the Paras.id API, returning unpaginated JSON data1,581MIT OR Apache-2.0Command line utilities qpathRegister, list, and maintain frequently used file and directory paths69MITCommand line utilities qpayQPay V2 API SDK for Rust26MIT qpdfRust bindings to QPDF C++ library46,125MIT/Apache-2.0 qpdf-sysRust bindings to QPDF C++ library via FFI and bindgen49,664MIT/Apache-2.0 qpet-sperrHigh-level Rust bindings to the QPET-SPERR compressor5,788MPL-2.0API bindingsCompression qpet-sperr-sysLow-level Rust bindings to the QPET-SPERR compressor5,966MPL-2.0API bindingsCompression qpg6200-pacPeripheral Access Crate for Qorvo's QPG6200(L)12MIT qpid_protonRust bindings for the Apache Qpid Proton C library.14,816Apache-2.0 qpid_proton-sysRust bindings for the Apache Qpid Proton C library.21,988Apache-2.0 qpidfileA minimal library for managing a process' pidfile.3,2870BSD qplQuigly's Platform Layer23,243MIT qplanCompile a typed query AST (qexpr) into execution-friendly plans (prime-ideal: planning).101MIT OR Apache-2.0AlgorithmsText processing qpmQuick command line password manager written in Rust.8,472MIT qpmlQuery Plan Markup Language (QPML)15,289Apache-2.0 qpprintSimple console printing/formatting.7,9520BSDText processing qprimeAn experimental programming language for quantum and weather calculations/applications.2,652Apache-2.0 qprotocolSTUN, forward and QUIC packet routing protocol implementation for dquic38Apache-2.0AsynchronousNetwork programming qproxyA simple forward proxy server written in Rust16,804MIT qptrieA QP-Trie implementation for Rust23,034ISCAlgorithmsData structures qqlightweight alternative quote123MIT-0Development tools::Procedural macro helpers qq-bot...2,807MPL-2.0 qq-bot-rsAsync Rust SDK for the Tencent QQ Bot v2 platform — HTTP + gateway + typed events.39MITAPI bindingsAsynchronous qqcliQQ 本地数据 CLI — 读取聊天记录、搜索、统计、导出50MITCommand line utilitiesDatabase interfaces qqgA small CLI search tool.1,679MIT qqmusic-rsSimple wrapper for QQMusicApi7,318MIT qqrlQuick Query for Rust Ledger256AGPL-3.0Command line utilitiesFinance qqwingQQwing is software for generating and solving Sudoku puzzles. This is a rust version.1,855GPL-2.0-or-laterAlgorithmsGames qqwrysearch ip address with qqwry.data using rust3,200non-standard qqxqqx is a 3d library for rust based on OpenGL5,746GPL-3.0Game developmentGames qqx-macroHelper crate to improve user experience while using qqx6,139GPL-3.0 qrQR cli5,216MIT qr-apiA simple and fast QRcode encoder/decoder API written in rust.1,615MITEncodingWeb programming::HTTP server qr-base44Base44 encode/decode for arbitrary bytes using URL-safe QR-compatible alphabet262Apache-2.0EncodingNo standard library qr-base45Base45 encode/decode for arbitrary bytes per RFC 9285 (QR alphanumeric alphabet)305Apache-2.0EncodingNo standard library qr-code-stylingStyled QR code generation with customizable dots, corners, gradients, and logo embedding6,829MITEncodingGraphics qr-encodeA simple CLI QR Code generator14,987MIT qr-genCLI tool to generate QR-Code from text2,882MITCommand line utilities qr-generatorqrcode generator to generate string into qrcode5,612MIT qr-generator-cliCommand line QR code generator for those who love tools that just work1,513MIT qr-guiGUI for qr-scan-rs19MIT OR Apache-2.0 qr-imageA simple CLI tool to generate a qr_code image for easy sharing and privately2,478MITCommand line utilities qr-image-coreCreate QR code from a image.2,874MPL-2.0 qr-label-generatorRust library to generate QR code images, with batch generation support from JSON and CSV files. Includes warehouse label…118MIT OR Apache-2.0Command line utilitiesEncoding qr-makerSimple CLI for QR making3,546MIT qr-readerA qrcode reader that prints out the data of the qrcode2,798MIT qr-rsA CLI utility to encode URLs or text into QR codes in various formats and colors.3,327GPL-3.0-onlyCommand line utilitiesComputer vision qr-rs-commonSome utility functions for the qr-rs project.3,273GPL-3.0 qr-rs-libGenerates QRCodes with a logo overlay.5,010GPL-3.0 qr-scan-rsA comprehensive QR code generator library supporting URL, Text, and vCard formats with advanced customization.90MIT OR Apache-2.0EncodingMultimedia::Images qr-scannerA cross-platform QR code scanner with screen capture and clipboard integration35MIT qr-specsQR Code data specifications generator1,583MIT qr-swastika-avoiderDetect and avoid accidental hooked-cross (swastika) patterns in QR codes27MITEncoding qr-testerA CLI tool to scan QR codes from images and benchmark performance330Apache-2.0Command line utilitiesMultimedia::Images qr-transferFile transfer over QR codes — stop-and-wait ARQ in the terminal79MITCommand line utilitiesNetwork programming qr2cairoVector drawing of QR code using Cairo2,603MPL-2.0GraphicsVisualization qr2termStupidly simple Rust crate to render a QR code in the terminal.842,009MPL-2.0AlgorithmsRendering qr2textRender a QR code in the terminal2,195MITCommand-line interface qr_benchmarkA benchmarking suite for Rust QR code decoding libraries29MITDevelopment tools::ProfilingMultimedia::Images qr_cliCommand line tool to create and read QR files.1,575MIT qr_codeQR code encoder in Rust, support structured append (data in multiple qrcodes)165,760MIT OR Apache-2.0 qr_from_strMaking it easy to generate QRCode in SVG from str1,569MIT OR Apache-2.0 qr_terminalGenerates and prints a QR code to the terminal.2,643MIT/Apache-2.0 qr_webWebAssembly frontend for qr-scan-rs21MIT OR Apache-2.0 qraftTyped Rust query builder with CTE and soft-delete support.37MIT OR Apache-2.0 qraft-coreCore type system, query model, decoding, and SQL lowering primitives for qraft.49MIT OR Apache-2.0 qraft-deriveProcedural derives for qraft query-builder models, rows, and projections.45MIT OR Apache-2.0 qraft-derive-coreShared derive implementation helpers for qraft procedural macros.87MIT OR Apache-2.0 qraft-expression-macroProcedural macro support for qraft expression construction.75MIT OR Apache-2.0 qrai-scanner-cliCLI for QR code validation and scannability scoring17MITCommand line utilitiesMultimedia::Images qrai-scanner-coreHigh-performance QR code validation and scannability scoring for artistic QR codes86MITEncodingMultimedia::Images qraisc-coreHigh-performance QR code validation and scannability scoring for artistic QR codes17MITEncodingMultimedia::Images qrateA examination generator library that generates different quiz sets for all students so that each student may have a different…458MIT OR Apache-2.0AlgorithmsData structures qrate-guiA GUI examination generator library that generates different quiz sets for all students so that each student may have a different…56MIT OR Apache-2.0AlgorithmsData structures qrawsimple terminal drawing canvas.2,365MITCommand line utilities qrawlRust toolkit to crawl web data for AI agents2,102MITAsynchronousCommand line utilities qrbillA implementation of [qrbill](https://www.swiss-qr-invoice.org/) in Rust6,505MIT/Apache-2.0 qrcA Rust library for generating and manipulating QR code images in various formats11,449MIT OR Apache-2.0AlgorithmsEncoding qrc-opensource-rsThe free opensource version of the Quantum Secure Cryptographic library in Rust (QRC)5,818non-standardCryptography qrcliA QRCode cli tools, can encode and decode3,927MITDevelopment tools::Procedural macro helpersParser implementations qrcli-rscommand line qr code generator6,456MITCommand line utilities qrcodeQR code encoder in Rust17,127,445MIT OR Apache-2.0 qrcode-ai-scannerQR code decoding and scannability scoring for artistic, AI-generated, and photo-captured QR codes243AGPL-3.0-or-laterComputer visionEncoding qrcode-ai-scanner-cliCLI for QR code decoding and scannability scoring — artistic, AI-generated, and photo-captured QR codes239AGPL-3.0-or-laterCommand line utilitiesMultimedia::Images qrcode-ai-scanner-coreHigh-performance QR code validation and scannability scoring for artistic, image-embedded, custom styled, and photo-captured QR…2,243AGPL-3.0EncodingMultimedia::Images qrcode-cliA Simple CLI tool to generate QR Code5,229MIT qrcode-coreZero-dependency QR code encoding core (no_std + alloc) — the encoding primitive layer of qrcode-rs.61MIT OR Apache-2.0EncodingNo standard library qrcode-decodeQR code decoding traits, grayscale views, Structured Append parsing, and optional rqrr adapter for qrcode-rs.29MIT OR Apache-2.0EncodingMultimedia::Images qrcode-epsPure Rust Encapsulated PostScript rendering backend for qrcode-rs.32MIT OR Apache-2.0EncodingMultimedia::Images qrcode-fastHigh-performance QR Code generator using WebAssembly42MIT qrcode-generatorGenerates ISO/IEC 18004 QR Code and Micro QR Code symbols and ISO/IEC 23941 rMQR symbols in pure Rust, then renders them as…4,625,460MITEncodingMultimedia::Images qrcode-generator-evcxrDisplay QR codes in Jupyter notebooks via evcxr44MITMultimedia::ImagesVisualization qrcode-htmlPure Rust HTML table and CSS-grid rendering backend for qrcode-rs.25MIT OR Apache-2.0EncodingMultimedia::Images qrcode-parseZero-dependency QR payload content parsers (WiFi / vCard / GS1) — the decode-side helpers of qrcode-rs.26MIT OR Apache-2.0EncodingNo standard library qrcode-pdfPure Rust PDF rendering backend for qrcode-rs.25MIT OR Apache-2.0EncodingMultimedia::Images qrcode-picPure Rust PIC/troff rendering backend for qrcode-rs.32MIT OR Apache-2.0EncodingMultimedia::Images qrcode-pngGenerate QR code in png format19,661MIT qrcode-renderPure Rust QR rendering traits, builder, text renderers, ANSI renderer, and color helpers for qrcode-rs.48MIT OR Apache-2.0EncodingMultimedia::Images qrcode-rsQR code encoder in Rust,Generate QR Code matrices and images in RAW, PNG and SVG formats.39,112MIT OR Apache-2.0EncodingMultimedia::Encoding qrcode-rustPure Rust QRCode generator65MIT qrcode-rust-sharedCore QR Code library shared between qrcode-rust and qrcode-fast213MIT