# Dart & Flutter packages

Browse Dart and Flutter packages, inspect versions and download selected archives.




- [universal_web](/packages/universal_web) 1.1.1+2 — Wrapper around package:web that adds compatibility for non-web environments.
- [unmodifiable_collection](/packages/unmodifiable_collection) 0.9.2+1 — Discontinued library. Use package:collection/wrappers.dart instead.
- [unscripted](/packages/unscripted) 0.6.2 — Declarative command-line interface programming.
- [uri](/packages/uri) 1.0.0 — Utilities for building and parsing URIs, including support for parsing URI templates as defined in RFC 6570.
- [uri_template](/packages/uri_template) 0.6.0 — An implementation of  RFC 6570 URI Templates
- [url_launcher](/packages/url_launcher) 6.3.3 — Flutter plugin for launching a URL. Supports web, phone, SMS, and email schemes.
- [url_launcher_android](/packages/url_launcher_android) 6.3.33 — Android implementation of the url_launcher plugin.
- [url_launcher_ios](/packages/url_launcher_ios) 6.4.2 — iOS implementation of the url_launcher plugin.
- [url_launcher_linux](/packages/url_launcher_linux) 3.2.3 — Linux implementation of the url_launcher plugin.
- [url_launcher_macos](/packages/url_launcher_macos) 3.2.6 — macOS implementation of the url_launcher plugin.
- [url_launcher_platform_interface](/packages/url_launcher_platform_interface) 2.3.2 — A common platform interface for the url_launcher plugin.
- [url_launcher_web](/packages/url_launcher_web) 2.4.3 — Web platform implementation of url_launcher
- [url_launcher_windows](/packages/url_launcher_windows) 3.1.6 — Windows implementation of the url_launcher plugin.
- [usage](/packages/usage) 4.1.1 — A Google Analytics wrapper for command-line, web, and Flutter apps.
- [utf](/packages/utf) 0.9.0+5 — Provides common operations for manipulating Unicode sequences
- [uuid](/packages/uuid) 4.6.0 — RFC4122 (v1, v4, v5, v6, v7, v8) UUID Generator and Parser for Dart

- [validate](/packages/validate) 1.7.0 — This class assists in validating method arguments
- [vector_graphics](/packages/vector_graphics) 1.2.5 — A vector graphics rendering package for Flutter using a binary encoding.
- [vector_graphics_codec](/packages/vector_graphics_codec) 1.1.13 — An encoding library for the binary format used in `package:vector_graphics`
- [vector_graphics_compiler](/packages/vector_graphics_compiler) 1.3.4 — A compiler to convert SVGs to the binary format used by `package:vector_graphics`.





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