Social Source Commons

Free language translator.

Web-based software for collaborative creation of dictionaries.

Dict.org is a hosted dictionary. It is based on the GPL software GCIDE.

Fantasdic is a DICT client. It is multi-platform and written in the Ruby programming language. It retrieves definitions from the internet via the DICT protocol instead of from a file on the local hard drive.

Gengo is a full featured plugin that provides multi-language blogging for WordPress 2.5+. It allows for an unlimited number of translations and summaries for any post and provides template tags to display language information. It allows you to edit translations side by side, detects and filters by language automatically when a visitor comes to your site and automatically generates semantic information for links and content blocks.

GNOME Subtitles is a subtitle editor for the GNOME desktop. It supports the most common text-based subtitle formats and allows for subtitle editing, translation and synchronization.

Google's version of Babelfish.

Hunspell is the default spell checker of OpenOffice.org and Mozilla Firefox 3 & Thunderbird.

Ispell is a program that enables users to correct spelling and typographical errors in a file. When presented with a word that is not in the dictionary, Ispell attempts to find near misses that might include the word you meant.

Kartouche is a web-based translation tool - it allows translations to be submitted via a browser-based interface. Kartouche's sister application, Omnivore, stores the completed translations in a searchable store to which comments and corrections can be added.

Kyfiethu is a web-based Welsh translation workflow tool. It is based on Kartouche.

Lingro is an online multilingual dictionary tool. Lingro's mission is to create an on-line environment that allows anyone learning a language to quickly look up and learn the vocabulary most important to them. Lingro is not open source software, but all content on Lingro is licensed under Creative Commons.

Moses is a statistical machine translation system that allows you to automatically train translation models for any language pair. All you need is a collection of translated texts (parallel corpus).

OmegaT is a free translation memory application written in Java. It is a tool intended for professional translators.

The OTE is an open source project developing language translation and dictionary tools for the internet community. This prototype system currently supports Dutch to English translations.

Translation service for software developers: easily find translations into many different languages for interface texts used by other software

Poedit is cross-platform gettext catalogs (.po files) editor. It aims to provide more convenient approach to editing catalogs.

Project Open is a general-purpose project management system with a translation module. The source license is a GPL hybrid, and the translation module is FL (“Free License”), which is “pseudo FOSS”, with extensive limits on redistribution of code.

Subtitle Editor is a GTK+2 tool to edit subtitles for GNU/Linux/*BSD. It can be used for new subtitles or as a tool to transform, edit, correct and refine existing subtitles. The program also displays sound waves, making it easier to synchronize subtitles to voices.

Traduki is a suite of open source linguistic software. Originally intended to be "just" a machine translation software, Traduki got its author so involved that it eventually grew into a much larger scale project.

The Translate Toolkit is designed by localisers for localisers. Its aim is to make localisation easier and of higher quality. The toolkit can convert between various different translation formats and makes it possible to stay in one format across all localisation tasks.

Vertimus is an open source web tool for managing workflow for translations. Each translation has a status which changes at each step, and users can create an account, book any translation and communicate with a team. An example of Vertimus in action can be found at http://gnomefr.traduc.org/suivi. The first release provides support for localization between English and French.

Wiktionary is a collaborative project to produce a free-content multilingual dictionary. Designed as the lexical companion to Wikipedia, Wiktionary has grown beyond a standard dictionary and now includes a thesaurus, a rhyme guide, phrase books, language statistics and extensive appendices.

The Wordforge Off-line Localization Editor, previously known as Pootling, is an intelligent, platform-independent offline localization tool developed specifically to allow translators to get the most out of the XLIFF file format.

The Worldwide Lexicon enables people to create translation communities around any website, blog or topic. WWL combines automatic machine translation with people, who edit and improve machine translations.