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5 Best Translation and Localization Libraries for Flutter in 2023

We all know that translation can be tricky, and even more so when it comes to Flutter. Luckily for you, there are lots of ways to get translations done in a variety of languages – some better than others.

When it comes to localization and translation, you want to make sure that you’re using the best tools possible. Here are 5 of the best translation libraries for Flutter.

5 Best Translation and Localization Libraries for Flutter


easy_localization is an outstanding library for internationalizing and localizing your Flutter apps with ease. It simplifies the process by allowing you to load translations in many formats, including JSON, CSV, Yaml, and XML. You can also react to locale changes and support nesting and RTL locales.

Error messages are displayed in a user-friendly way, and you can use the code generation feature to quickly create localization files. This library is null-safe and comes with a customizable logger.


i18N-extension is a reliable and effective toolkit when building your next global application with Flutter. It takes the headache away from localization and localization, providing clear APIs that are easy to understand. i18N-extension helps you get your application ready for a global audience with very little code.


If you’re looking for a fast, lightweight, and configurable translation library for your Flutter app, then fast_i18n is the right package for you! This library makes it easy to create translations using JSON, YAML, or CSV files.

You can even configure the default language if English isn’t your first language. Plus, because the translations are compiled into native Dart method calls, you’ll never have to worry about missing arguments or typos.


The flutter_i18n library is an easy way to internationalize your Flutter app by utilizing a simple .json file. Once installed, you simply add a new .json file to your project with translations for each language you want to support.


This library uses code generation to automatically create translations as Dart classes, making the process fast and easy. Plus, it integrates perfectly with autocomplete so you can get started right away!

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