L10n

GlobalizeJavaScript

A JavaScript library for internationalization and localization using official Unicode CLDR JSON data.

translocoTypeScript

A feature-rich internationalization (i18n) library for Angular applications with signal-based API and plugin ecosystem.

Fluent SpecsJavaScript

A localization system designed to unleash the expressive power of natural language through its Fluent Translation List (FTL) syntax.

CLDR currency definitionsJava

The Unicode Common Locale Data Repository provides the largest standard repository of locale data for software internationalization.

react-intlayerTypeScript

A per-component internationalization solution for JavaScript applications with AI-powered translation, a visual editor, and a multilingual CMS.

jquery.i18nJavaScript

A jQuery-based JavaScript internationalization library using JSON message files, supporting plurals, gender, grammar, and dynamic locale switching.

sveltekit-i18nTypeScript

A lightweight, dependency-free internationalization library designed specifically for SvelteKit applications.

gotextGo

A GNU gettext utilities package for Go, providing complete PO/MO file support, pluralization, and thread-safe internationalization.

gettextElixir

An internationalization (i18n) and localization (l10n) system for Elixir applications, implementing the standard Gettext framework.

Flask-BabelPython

Adds internationalization (i18n) and localization (l10n) support to Flask applications using Babel and pytz.

Flutter TranslateDart

A fully featured localization and internationalization (i18n) library for Flutter applications.

ScribbleGame Maker Language

An efficient, internationalized text renderer for GameMaker with multi-effects support, optimized for dynamic dialogue.

angular-l10nTypeScript

Angular library for internationalization (i18n) and localization (l10n) of texts, dates, and numbers using the Intl API.

wuchaleTypeScript

A compile-time i18n toolkit that requires zero code changes and produces the smallest possible bundles for React, Svelte, SolidJS, and Astro.

L10n-swiftSwift

A Swift framework for in-app language switching and advanced localization with plural support.

TowerClojure

A simple, idiomatic internationalization and localization library for Clojure and ClojureScript.

react-native-globalizeTypeScript

A comprehensive internationalization (i18n) library for React Native apps with hooks, components, and CLDR support.

tolgee/vueTypeScript

JavaScript integration packages for Tolgee, an open-source localization platform enabling in-context translation.

ngx-tolgeeTypeScript

JavaScript integration packages for Tolgee, an open-source localization platform with in-context translation.

mdbook-i18n-helpersRust

A set of plugins for mdBook that provides structured translation support and template-based HTML rendering.

Cake/Localized pluginPHP

A CakePHP plugin providing localized validation classes and translations for international applications.

MessageFormat.NETC#

ICU MessageFormat implementation for .NET enabling locale-aware pluralization, gender selection, and number/date formatting.

Translations

A curated list of tools, libraries, articles, and resources for software internationalization (i18n), localization (l10n), and translation.

English

A curated list of tools, libraries, articles, and resources for software internationalization (i18n), localization (l10n), and translation.

LuneticsLocaleBundlePHP

A Symfony bundle for automatically detecting user locale from query parameters, routes, browser preferences, cookies, sessions, and subdomains.

svelte-fluentSvelte

A Svelte localization library using Mozilla's Fluent syntax for natural-sounding translations.

i18n Testing Data

Real-world international name datasets for testing software internationalization and localization.