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autofocus="autofocus" title="Search" data-widget="completion" data-completion-src="/api/search-input-completion-data" data-completion-class="search-completion"/><span class="icon"></span></form><p class="text">The official package repository for <a href="https://dart.dev/" rel="noopener" target="_blank">Dart</a> and <a href="https://flutter.dev/" rel="noopener" target="_blank">Flutter</a> apps.</p><img src="/static/hash-j60jq2j3/img/supported-by-google-2x.png" alt="Supported by Google" width="218" height="36"/></div></div><main class="landing-main"><div class="home-block home-block-ff"><div class="home-block-content"><h1 class="home-block-title">Flutter Favorites</h1><p class="home-block-context-info">Some of the packages that demonstrate the <a href="https://flutter.dev/docs/development/packages-and-plugins/favorites" rel="noopener" target="_blank">highest levels of quality</a>, selected by the Flutter Ecosystem Committee</p><div class="mini-list"><div class="mini-list-item"><a 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class="mini-list-item-description">A Flutter implementation of slidable list item with directional slide actions that can be dismissed.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/romainrastel.com" data-ga-click-event="landing-flutter-favorites-card-publisher">romainrastel.com</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/cloud_functions" data-ga-click-event="landing-flutter-favorites-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">cloud_functions</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A Flutter plugin allowing you to use Firebase Cloud Functions.</p></div><div 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class="home-block-context-info">Some of the most downloaded packages over the past 30 days</p><div class="mini-list"><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/archive" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">archive</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Provides encoders and decoders for various archive and compression formats such as zip, tar, bzip2, gzip, and zlib.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/loki3d.com" data-ga-click-event="landing-most-popular-card-publisher">loki3d.com</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/mime" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">mime</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Utilities for handling media (MIME) types, including determining a type from a file extension and file contents.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/tools.dart.dev" data-ga-click-event="landing-most-popular-card-publisher">tools.dart.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/watcher" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">watcher</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A file system watcher. It monitors changes to contents of directories and sends notifications when files have been added, removed, or modified.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/tools.dart.dev" data-ga-click-event="landing-most-popular-card-publisher">tools.dart.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/win32" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">win32</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Access common Win32 APIs directly from Dart using FFI — no C required! </p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/halildurmus.dev" data-ga-click-event="landing-most-popular-card-publisher">halildurmus.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/convert" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">convert</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Utilities for converting between data representations. Provides a number of Sink, Codec, Decoder, and Encoder types.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/dart.dev" data-ga-click-event="landing-most-popular-card-publisher">dart.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/cli_util" data-ga-click-event="landing-most-popular-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">cli_util</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A library to help in building Dart command-line apps.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/tools.dart.dev" data-ga-click-event="landing-most-popular-card-publisher">tools.dart.dev</a></div></div></div></div><div class="home-block-view-all"><a class="home-block-view-all-link" href="/packages?sort=downloads" rel="nofollow" title="Search popular packages" data-ga-click-event="landing-most-popular-view-all">View all</a></div></div></div><div class="home-block home-block-tf"><div class="home-block-content"><h1 class="home-block-title">Top Flutter packages</h1><p class="home-block-context-info">Some of the top packages that extend Flutter with new features</p><div class="mini-list"><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/sqflite" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">sqflite</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Flutter plugin for SQLite, a self-contained, high-reliability, embedded, SQL database engine.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/tekartik.com" data-ga-click-event="landing-top-flutter-card-publisher">tekartik.com</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/after_layout" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">after_layout</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Execute code after the first layout of your widget has been performed, i.e. after the first frame has been displayed.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/fluttercommunity.dev" data-ga-click-event="landing-top-flutter-card-publisher">fluttercommunity.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/bloc" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">bloc</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A predictable state management library that helps implement the BLoC (Business Logic Component) design pattern.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/bloclibrary.dev" data-ga-click-event="landing-top-flutter-card-publisher">bloclibrary.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/retry" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">retry</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Utility for wrapping an asynchronous function in automatic retry logic with exponential back-off, useful when making requests over network.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/google.dev" data-ga-click-event="landing-top-flutter-card-publisher">google.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/mime" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">mime</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Utilities for handling media (MIME) types, including determining a type from a file extension and file contents.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/tools.dart.dev" data-ga-click-event="landing-top-flutter-card-publisher">tools.dart.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/bloc_test" data-ga-click-event="landing-top-flutter-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">bloc_test</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A testing library which makes it easy to test blocs. Built to be used with the bloc state management package.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/bloclibrary.dev" data-ga-click-event="landing-top-flutter-card-publisher">bloclibrary.dev</a></div></div></div></div><div class="home-block-view-all"><a class="home-block-view-all-link" href="/packages?q=sdk%3Aflutter" rel="nofollow" title="Search Flutter packages" data-ga-click-event="landing-top-flutter-view-all">View all</a></div></div><div class="home-block-image"><img src="/static/hash-j60jq2j3/img/landing-02.webp" alt="" width="306" height="240" role="presentation"/></div></div><div class="home-block home-block-td"><div class="home-block-image"><img src="/static/hash-j60jq2j3/img/landing-03.webp" alt="" width="370" height="240" loading="lazy" role="presentation"/></div><div class="home-block-content"><h1 class="home-block-title">Top Dart packages</h1><p class="home-block-context-info">Some of the top packages for any Dart-based app or program</p><div class="mini-list"><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/bloc" data-ga-click-event="landing-top-dart-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">bloc</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">A predictable state management library that helps implement the BLoC (Business Logic Component) design pattern.</p></div><div class="mini-list-item-footer"><div class="mini-list-item-publisher"><img class="publisher-badge filter-invert-on-dark" src="/static/hash-j60jq2j3/img/material-icon-verified.svg" alt="verified publisher" width="14" height="14" title="Published by a pub.dev verified publisher"/><a class="publisher-link" href="/publishers/bloclibrary.dev" data-ga-click-event="landing-top-dart-card-publisher">bloclibrary.dev</a></div></div></div><div class="mini-list-item"><a class="mini-list-item-title" href="/packages/pub_semver" data-ga-click-event="landing-top-dart-card-title"><span class="mini-list-item-title-text" role="heading" aria-level="2">pub_semver</span></a><div class="mini-list-item-body"><p class="mini-list-item-description">Versions and version constraints implementing pub's versioning policy. 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