args
Library for defining parsers for parsing raw command-line arguments into a set of options and values using GNU and POSIX style options.
async
Utility functions and classes related to the ‘dart:async’ library.
build
A package for authoring build_runner compatible code generators.
characters
String replacement with operations that are Unicode/grapheme cluster aware.
collection
Collections and utilities functions and classes related to collections.
convert
Utilities for converting between data representations. Provides a number of Sink, Codec, Decoder, and Encoder types.
crypto
Implementations of SHA, MD5, and HMAC cryptographic functions.
fake_async
Fake asynchronous events such as timers and microtasks for deterministic testing.
ffi
Utilities for working with Foreign Function Interface (FFI) code.
fixnum
Library for 32- and 64-bit signed fixed-width integers with consistent behavior between native and JS runtimes.
grpc
Dart implementation of gRPC, a high performance, open-source universal RPC framework.
http
A composable, multi-platform, Future-based API for HTTP requests.
http_parser
A platform-independent package for parsing and serializing HTTP formats.
intl
Contains code to deal with internationalized/localized messages, date and number formatting and parsing, bi-directional text, and other internationalization issues.
intl_translation
Contains code to deal with internationalized/localized messages, date and number formatting and parsing, bi-directional text, and other internationalization issues.
js
Annotations to create static Dart interfaces for JavaScript APIs.
logging
Provides APIs for debugging and error logging, similar to loggers in other languages, such as the Closure JS Logger and java.util.logging.Logger.
matcher
Support for specifying test expectations via an extensible Matcher class. Also includes a number of built-in Matcher implementations for common cases.
meta
Annotations used to express developer intentions that can’t otherwise be deduced by statically analyzing source code.
mockito
A mock framework inspired by Mockito with APIs for Fakes, Mocks, behavior verification, and stubbing.
os_detect
Platform independent OS detection.
path
A string-based path manipulation library. All of the path operations you know and love, with solid support for Windows, POSIX (Linux and Mac OS X), and the web.
test
A full featured library for writing and running Dart tests across platforms.
typed_data
Utility functions and classes related to the dart:typed_data library.