# Dart & Flutter packages

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




- [timezone](/packages/timezone) 0.11.2 — Time zone databases and time zone aware `DateTime`.
- [timing](/packages/timing) 1.0.2 — A simple package for tracking the performance of synchronous and asynchronous actions.
- [toastification](/packages/toastification) 3.2.2 — Toastification is a Flutter package that allows you to easily show toast and notification messages in your application.
- [toml](/packages/toml) 0.18.0 — Parser and encoder for TOML v1.0.0 (Tom's Obvious, Minimal Language) configuration files.
- [transparent_image](/packages/transparent_image) 2.0.1 — A transparent image in Dart code, represented as a Uint8List.
- [tuple](/packages/tuple) 2.0.2 — A library providing a tuple data structure.
- [turf](/packages/turf) 0.0.14 — A turf.js-like geospatial analysis library working with GeoJSON, written in pure Dart.
- [turf_equality](/packages/turf_equality) 0.1.0 — Comparison of two GeoJSON objects, based on the turf pub-package
- [turf_pip](/packages/turf_pip) 0.0.2 — A small library for detecting if a point lies inside a polygon
- [typed_data](/packages/typed_data) 1.4.0 — Utility functions and classes related to the dart:typed_data library.
- [typed_mock](/packages/typed_mock) 0.0.4 — A library for mocking classes using Mockito-like syntax
- [typewritertext](/packages/typewritertext) 3.0.9 — A simple typewriter text animation wrapper for flutter. Supports iOS, Android, web, Windows, macOS, and Linux.
- [unicode](/packages/unicode) 1.1.9 — Unicode characters library auto generated from http://www.unicode.org.
- [unified_analytics](/packages/unified_analytics) 8.3.0 — A package for logging analytics for all Dart and Flutter related tooling to Google Analytics.
- [unittest](/packages/unittest) 0.12.4+1 — A library for writing dart unit tests.
- [universal_html](/packages/universal_html) 2.3.0 — A 'dart:html' that works in all platforms, including Flutter and server-side. Eases cross-platform development and HTML / XML processing.
- [universal_io](/packages/universal_io) 2.3.1 — Cross-platform 'dart:io' that adds browser support for HttpClient and some other "dart:io" APIs.
- [universal_platform](/packages/universal_platform) 1.1.0 — Replacement for dart.io.Platform class which works on Web as well as Desktop and Mobile. Allows platform checks in your view/model layer easily.
- [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.





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