All 305,250 crates, alphabetically

qrcode-svgPure Rust SVG rendering backend and SVG post-processing helpers for qrcode-rs.33MIT OR Apache-2.0EncodingMultimedia::Images qrcode2A QR code encoding library10,794Apache-2.0 OR MITEncodingMultimedia::Images qrcode2pdfRender barcodes (QR Codes, Aztec, Data Matrix, etc) using rxing into a krilla Surface (PDF)46EUPL-1.2 qrcode53bytesQR code for 53 bytes3,642MITMultimedia::Images qrcode_scannerScan qr-codes from video4linux devices9,142MITComputer visionMultimedia qrcode_unicode_extHigh-density Unicode rendering for qrcode264MITCommand-line interfaceEncoding qrcodefyiQR code type reference, version lookup, and encoding encyclopedia -- async API client for qrcodefyi.com.53MITAPI bindingsData structures qrcodegenHigh-quality QR Code generator library8,503,494MITEncodingMultimedia::Images qrcodegen-imageDraw QR codes to a PNG canvas. Wrapper around the qrcodegen and image crates.3,039,104MIT qrcodegen-no-heapHigh-quality QR Code generator library146,400MITEncodingMultimedia::Images qrcoderCLI tool that generates a QR code from a given string.6,132MITCommand line utilities qreadA convenience library for common read operations1,545MITFilesystem qreaderA clipboard manager and file reader with emoji support and customizable fonts23MITGUI qrecoveryThe reliable transport part of QUIC, a part of dquic7,238Apache-2.0AsynchronousNetwork programming qregisterA simple IoC (Inversion of Control) container.11,179CC0-1.0 qrencodeQR code encoder in Rust57,182MIT OR Apache-2.0 qrepA proof-of-concept QML GUI for ripgrep2,061AGPL-3.0-or-later qres_coreDeterministic no_std runtime for quantum-resilient swarm consensus with fixed-point arithmetic, Byzantine aggregation, and ZK…182MIT OR Apache-2.0 qres_daemonP2P edge daemon with libp2p gossipsub and REST API for QRES node management24MIT OR Apache-2.0 qres_simSimulation and evaluation engine for QRES swarm dynamics and regime testing25MIT OR Apache-2.0 qresolvedquic's dns abstractions1,638Apache-2.0AsynchronousNetwork programming qrexQt Resource Extractor3,609MITCommand line utilitiesData structures qrexec-bindsQubes OS specific qrexec-client-vm interface.2,468non-standard qrfiCLI Wi-Fi QR Code Generator59MITCommand line utilities qrforgeA QR code generator written in Rust3,768MIT qrgGenerates QRCodes with a logo overlay.4,242GPL-3.0 qrgenRenders input from stdin as QR codes on ANSI terminals.1,752MIT qrgen-coreRenderer-agnostic, dependency-free QR Code core with no_std-friendly matrix output.19MITCommand line utilitiesEmbedded development qrgen-rsFast no-std QR code generator written in pure Rust50non-standardEncodingMultimedia::Images qriaSimple QR encoding cli tool324MIT qrisQRIS Parser & Editor2,452MITData structuresEncoding qris-genA Rust library for generating dynamic QRIS (Quick Response Code Indonesian Standard) with custom amounts and QR code image…41MITEncodingMultimedia::Images qrismA Rust library for generating and reading QR codes with Reed-Solomon error correction. Supports traditional monochromatic QR…3,185MITComputer visionEncoding qrlQuigly's Rendering Layer1,706MIT qrlewSarus Qrlew Engine84,974Apache-2.0 qrlew-sarusQrlew - Sarus interfaces32,767Apache-2.0 qrllibRust QRL primitives, wallet helpers, and ML-DSA-87 implementation for native and wasm use102MITCryptography qrmaxPrototype Model Context Protocol (MCP) project that allows QR code generation and decoding. QR Codes uploaded to catbox.moe.469MITCommand line utilities qrocPerl for procedural macros1,6370BSD qrockHelpers for Rocket HTTP server applications.3,5050BSDWeb programming::HTTP server qrosityA terminal and desktop application for generating QR codes with advanced customization options.83MITCommand line utilitiesMultimedia::Images qrotateQuaternion library for 3D rotation of vectors1,593Apache-2.0MathematicsScience qrpcqrpc is a small QUIC + mTLS messaging library55MITAsynchronousNetwork programming qrpc-brokerProvide a generic RPC server to connect qaul services together1,635AGPL-3.0-or-later qrpc-sdkA client SDK to build qrpc (qaul rpc) extensions5,206GPL-3.0-or-later qrporttransfering file to cell phone using QR code1,528MITCommand line utilities qrptonoteAES-256-GCM encrypted terminal notebook. mlock'd cleartext buffer, Argon2id KDF, prctl-hardened.44MITCommand line utilitiesCryptography qrqrparA QR code generator supporting rMQR8,359BSD-3-Clause qrquickEfficient and quick conversion of links or text in your clipboard to a QR code.1,593MIT OR Apache-2.0 qrrsCLI QR code generator and reader18,218MITCommand line utilitiesEncoding qrruqrru is a CLI tool to encode and decode qr-codes2,784MITCommand line utilities qrsShare text/file via QR code4,088non-standard qrs_detectorRealtime ECG QRS detector algorithm9,408MITAlgorithmsNo standard library qrscanScan a QR code in the terminal using the system camera or a given image13,271MITCommand-line interfaceCommand line utilities qrsimple-cliCommand line tool to generate QR codes.1,895GPL-3.0-or-later qrstreamA secure no-persistence way to convert confidential data into QR codes, and vice-versa1,493MIT OR Apache-2.0Command line utilities qrsyncUtility to copy files over WiFi to/from mobile devices inside a terminal using QR codes.20,301MITCommand line utilitiesMultimedia qrtRust CLI that prints QR codes to your terminal.1,780MITCommand line utilities qrt-log-utilsqrt's log utils11,508MIT qrt_rust_utilsqiaoruntao's rust utils1,559MIT OR Apache-2.0 qrtermLightweight program to create QR Codes28MIT qrtoolA command-line utility for encoding and decoding QR code67,781Apache-2.0 OR MITCommand line utilities qrtr-minimalRust bindings for libqrtr-glib39MIT/Apache-2.0 qrtr-sysRaw FFI bindings for libqrtr-glib, the GLib-based API for the Qualcomm Router (QRTR) IPC bus.67MIT/Apache-2.0 qruhearA library for capturing audio from the system.1,480Apache-2.0Multimedia::Audio qrusA QRCode cli tools, can encode and decode1,555MITCommand line utilitiesDevelopment tools::Procedural macro helpers qrushLightweight Job Queue and Task Scheduler for Rust (Actix/Axum + Redis + Cron)5,226MITAsynchronousConcurrency qrush-engineLightweight Job Queue and Task Scheduler for Rust (Actix + Redis + Cron)125MITAsynchronousConcurrency qrustA simple efficient QR scanner written in Rust1,654MPL-2.0 qrustcpWLAN File sharing made easy556MIT qrusthyRust wrapper for the QHYCCD SDK for QHY Cameras1,594MITAPI bindingsHardware support qrustyA trusty priority queue server built with Rust872MITNetwork programmingWeb programming qrusty_clientA Rust client for the qrusty priority queue server.4,835MIT qruxQrux — a QUIC/HTTP3 terminating proxy to TCP backends39MITNetwork programmingWeb programming qrwatermarkA tool to generate QR codes with watermarks1,903MIT qrwcellRead-write cell that aims to reduce the amount of blocking compared to a single read-write lock.3,161MIT qrwlockFair queued read-write lock2,821MIT qrxCLI tool to capture a screen region, decode any QR code found, and copy the result to clipboard287MIT qryA CLI tool for executing SQL queries on SQLite and DuckDB databases with auto-discovery45ISCCommand line utilitiesDatabase interfaces qrz-logbook-apiA Rust client library for the QRZ.com HTTP REST interface1,165MIT OR Apache-2.0API bindingsNetwork programming qrz-xmlA Rust client library for the QRZ.com XML API1,215MIT OR Apache-2.0API bindingsNetwork programming qsQuick SSH - Dead simple, zero-friction SSH wrapper that makes working with remote machines effortless1,893MITCommand line utilitiesNetwork programming qs-backtestBacktesting engine — strategy and signal replay over historical market data15MIT OR Apache-2.0Finance qs-backtest-apiProvider-neutral request, response, event, and client contracts for the quant-system backtest service15MIT OR Apache-2.0Finance qs-cliA quic based peer-to-peer file transfer tool2,156MIT qs-corequic send core library2,547MIT qs-cryptoQuantum-resistant cryptographic primitives using ML-DSA-87443MIT OR Apache-2.0CryptographyNo standard library qs-data-preprocessHistorical market data storage and preprocessing CLI60MIT OR Apache-2.0Finance qs-drbgNIST SP 800-90A compliant HMAC-DRBG for quantum-resistant cryptography585MIT OR Apache-2.0CryptographyNo standard library qs-formatCBOR signature format for Quantum-Sign - The Digital Notary Stamp439MIT OR Apache-2.0CryptographyEncoding qs-liteQSocket liteweight beacon.1,493MIT qs-market-dataReal-time market data service with shared memory IPC25MIT OR Apache-2.0Finance qs-market-data-apiProvider-neutral request, response, and event contracts for quant-system live market data15MIT OR Apache-2.0Finance qs-policyPolicy engine for Quantum-Sign - The Digital Notary Stamp That Even Quantum Computers Can't Forge274MIT OR Apache-2.0ConfigurationCryptography qs-rsconvert to query string6,480Apache-2.0 qs-serviceProvider-neutral service endpoints and transport failure policy for quant-system20MIT OR Apache-2.0Network programming qs-service-xrpcShared xrpc transport, connection, and host runtime for quant-system services16MIT OR Apache-2.0Network programming qs-signal-parserPer-channel Telegram signal parser for the quant-system15MIT OR Apache-2.0 qs-symbolsSymbol registry — canonical names, aliases, precision metadata, and lot specification20MIT OR Apache-2.0Finance qs-transparencyTransparency log support for Quantum-Sign (placeholder)268MIT OR Apache-2.0Cryptography qs-tspRFC 3161 timestamping for Quantum-Sign (placeholder)274MIT OR Apache-2.0Cryptography qs-verifyStandalone verification for Quantum-Sign signatures281MIT OR Apache-2.0Cryptography qs_rustA query string encoding and decoding library for Rust. Ported from qs for JavaScript.115BSD-3-ClauseEncodingParser implementations qsarqsar: a small Rust library for computing molecular descriptors and integrating with Linfa for QSAR modeling.151non-standardScience qscQuick async network scanner CLI33,963GPL-3.0-or-laterCommand line utilitiesNetwork programming qsc-cranelift-jitA JIT library backed by Cranelift (modified for QuickScript)1,989Apache-2.0 WITH LLVM-exception qscanQuick async network scan library37,697GPL-3.0-or-laterNetwork programming qscpQuantum Secure Copy — post-quantum file transfer over QSSL. No IPFS, no third party. Transport IS the encryption.39MIT OR Apache-2.0Command line utilitiesCryptography qsdrqsdr experimental high-performance SDR runtime1,162MIT OR Apache-2.0 qsdr-benchmarksBenchmarks for qsdr experimental high-performance SDR runtime934MIT OR Apache-2.0 qsdr-macrosqsdr macros1,387MIT OR Apache-2.0 qserdea non-std rust library for serializing/deserializing ml-kem(aka kyber) public key, encapsulating/decapsulating 256 bit keys and…1,073GPL-3.0 qserveQuickly serve your files on your network with speed and simplicity.12,169MIT qsfs-coreQuantum-Shield File System (QSFS) - Complete post-quantum file encryption library and CLI tools with ML-KEM-1024 and ML-DSA-875,662MIT OR Apache-2.0Command line utilitiesCryptography qshReserved crate name for quicshell – future work in progress.633MITNetwork programming qshare量化数据：股票、期货等5,332Apache-2.0 qshellMacro for easily running commands2,567MIT qshotA simple screenshotting library for Windows that focuses on performance.6,091MIT qshrTurtle-inspired shell scripting helpers for Rust176MITCommand line utilities qsiA small and fast simulation framework.713MIT OR Apache-2.0GraphicsSimulation qsimPower grid modeling and simulation library29MITScienceSimulation qsim-coreCore engine, traits, and state management for qsim409MIT qsim-elementsGrid elements (Bus, Branch, Generator, Load) for qsim320MIT qsim-ioJSON I/O, serialization, and persistence for qsim135MIT qsim-solversPower flow solvers (DC, AC) for qsim134MIT qsingletonHelper macros to generate singleton definitions440MITRust patterns qsingltonHelper macros to generate singleton definitions655MITRust patterns qskSoftware keyboard remapper inspired by QMK.3,212MIT OR Apache-2.0 qsk-macrosRemapping DSL macro to make qsk remapping more concise.3,948MIT OR Apache-2.0 qsk-typesTypes used in qsk and qsk-macros.4,640MIT OR Apache-2.0 qslibQSlib QuantStudio qPCR machine library2,962EUPL-1.2 qslib-quantumReusable quantum simulation models, solvers, and scientific conventions48Apache-2.0ScienceSimulation qslib-quantum-cliPhysicist-first command line interface for qslib29Apache-2.0 qslib-quantum-coreFoundational scientific vocabulary for qslib74Apache-2.0 qslib-quantum-exactExact-basis and exact-solver capabilities for qslib38Apache-2.0 qslib-quantum-ioVersioned scientific configuration and artifacts for qslib38Apache-2.0 qslib-quantum-sseFinite-temperature stochastic series expansion for qslib49Apache-2.0 qslib-quantum-variationalVariational statistics, TDVP, and integration kernels for qslib43Apache-2.0 qsnifferQsniffer is an infrastructure component of the Qexed project, primarily used to validate and test the correctness of packet…45MIT qsoA ham radio logbook.799AGPL-3.0-onlyCommand line utilitiesDatabase interfaces qsocketQSocket library.6,255MIT qsolveA command-line tool for solving Queens puzzles688MIT OR Apache-2.0Command line utilities qsonReserved16AGPL-3.0-only qsort-rsA quick sort algorithm that accepts any type and non-recursive approach.2,820MIT qspiceBuild DLLs to simulate digital functionality for qspice using rust59MIT qspice-macrosBuild DLLs to simulate digital functionality for qspice using rust111MIT qsshPost-quantum secure shell with NIST PQC algorithms (Falcon, SPHINCS+, ML-KEM), configurable security tiers, and quantum-resistant…893MIT OR Apache-2.0 qssh-uploaderQuick-SSH 文件上传工具（基于 OpenSSH SCP）42MIT qsslPure Rust post-quantum TLS — zero C code. ML-KEM, ML-DSA, SLH-DSA, Falcon. FIPS 203/204/205/206 compliant. 100 Lean 4 theorems.386MIT OR Apache-2.0AsynchronousCryptography qssm-apiQSSM Truth Engine façade: compile, commit, prove, verify, open.92BUSL-1.1 qssm-cliQSSM command-line interface for the core proving engine35BUSL-1.1 qssm-coreQSSM core proving engine73BUSL-1.1 qssm-entropyHardware-anchored raw entropy harvest, Heartbeat, and sovereign seed (to_seed).127BUSL-1.1 qssm-gadgetBLAKE3–lattice gadgets: degree-2 bit witnesses and MS Merkle helpers (QSSM integration).222BUSL-1.1 qssm-leQSSM-LE lattice engine facade (reference stub — not LaBRADOR).250BUSL-1.1 qssm-local-proverLayer 4 — deterministic prove pipeline for QSSM ZK proofs.160BUSL-1.1 qssm-local-verifierLayer 5 — offline proof verification for QSSM ZK proofs.129BUSL-1.1 qssm-msQSSM-MS (Mirror-Shift) succinct predicate proofs.280BUSL-1.1 qssm-proofsFormal invariants, reductions, and hardness gates for QSSM Engine A/B binding.21BUSL-1.1 qssm-templatesTemplate gallery and resolver for QSSM predicate templates.194BUSL-1.1 qssm-utilsBLAKE3 helpers, domain tags, and Merkle utilities for QSSM.332BUSL-1.1 qssnotifyAn utility that allows to regularly display notifications in the Desktop environment. Useful to help you remember that you should…1,507non-standardCommand line utilities qsspodcastsAn attempt to make a CLI podcast player3,965BSD-2-ClauseCommand line utilities qsspodcasts_abstract_frontendAbstract frontend library for QSSPodcasts, you probably don't need it.5,837BSD-2-ClauseCommand line utilities qsspodcasts_autocomplete_serverautocomplete server for QSSPodcasts, you probably don't need it.4,861BSD-2-ClauseCommand line utilities qsspodcasts_business_coreThe business core for QSS podcasts, you probably don't need it.5,796BSD-2-ClauseCommand line utilities qsspodcasts_command_managementAbstract frontend library for QSSPodcasts, you probably don't need it.5,341BSD-2-ClauseCommand line utilities qsspodcasts_data_cachesData caches for QSSPodcasts. You probably don't need it1,843BSD-2-Clause qsspodcasts_data_transportData transport utilities for QSSPodcasts, you probably don't need it.6,221BSD-2-ClauseCommand line utilities qsspodcasts_frontendDefault frontend crate for QSSPodcasts. You probably don't need to use it.4,462BSD-2-ClauseCommand line utilities qsspodcasts_fs_utilsfilesystem utils for QSSPodcasts. You probably don't have any need for it.7,105BSD-2-ClauseCommand line utilities qsspodcasts_path_providingPath providing utilities for QSSPodcasts, you probably don't need it.7,685BSD-2-ClauseCommand line utilities qsspodcasts_podcast_downloadPodcast download utilities for QSSPodcasts, you probably don't need it.6,265BSD-2-ClauseCommand line utilities qsspodcasts_podcast_managementpodcast management library for QSSPodcasts, you probably don't need it.8,097BSD-2-ClauseCommand line utilities qsspodcasts_podcast_playerPodcast player library for QSSPodcasts, you probably don't need it.6,204BSD-2-ClauseCommand line utilities qsspodcasts_rss_managementRSS feed management utilites for QSSPodcasts, you probably don't need it6,676BSD-2-ClauseCommand line utilities qsspodcasts_str_to_linesSome utility crate for QSSPodcasts, you probably don't need it5,055BSD-2-ClauseCommand line utilities qstA Community Driven CLI Quick Script Tool78MIT qstash-rsA Rust SDK for Upstash QStash10,046MITAPI bindingsWeb programming::HTTP client qstdinInterface for querying stdin2,623GPL-3.0-or-later qstorageFile system based object storage, can also be used as a persistent KV database.1,696MIT qstormA benchmarking tool for vector search engines56MIT qstrCache-efficient, stack-allocated string types2,220Apache-2.0Data structuresEmbedded development qstringQuery string parser18,549,620MIT qsuService subsystem utilities and runtime wrapper.23,1630BSDOperating systems qsvA Blazing-Fast Data-wrangling toolkit.243,163MIT OR UnlicenseCommand line utilitiesParser implementations qsv-calamineAn Excel/OpenDocument Spreadsheets reader and deserializer in pure rust903MITEncodingParsing tools qsv-dateparserParse dates in string formats that are commonly used. Optimized for qsv.187,623MIT qsv-snifferA CSV file format sniffer for Rust, optimized for qsv171,800MITParser implementations qsv-statsComputing summary statistics on streams.154,976MIT OR UnlicenseMathematicsScience qsv-tabwriterElastic tabstops.35,066Unlicense/MIT qsv2flvA tool developed in Rust to convert QSV to FLV1,741non-standardCommand line utilitiesMultimedia::Encoding qsv_currencyA library for representing international currencies.90,371MITInternationalization (i18n)Parser implementations qsv_docoptCommand line argument parsing.89,978Unlicense/MITCommand-line interface qsv_vader_sentiment_analysisBindings for Rust from the original Python VaderSentiment analysis tool. Forked for use with qsv.40,391MIT qsyncGenerate react-query hooks for your rust backend (see https://github.com/Wulf/create-rust-app)10,775MIT OR Apache-2.0 qsync-macroMacros for qsync (see https://github.com/Wulf/qsync)7,613MIT OR Apache-2.0 qtnon-addictive Twitter client30,260GPL-3.0-or-later qt-artifactsBundled manifest of download URLs and SHA256 checksums for prebuilt Qt distributions.3,694MIT OR Apache-2.0 qt-build-utilsBuild script helper for linking Qt libraries and using moc code generator. Intended to be used together with cc, cpp_build, or…80,632MIT OR Apache-2.0