Social Source Commons

Affords quick access to accented characters without memorizing lengthy alt key-code combinations. Good for typing in non-English languages on an English keyboard.

Free language translator.

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.

Glossmaster is the multi-lingual terminology tool developed for ANLoc, the African Network for Localization.

Glossmaster contains a core list of 2500 information technology terms that have been selected from a wide variety of software applications originally written in English, with definitions for each term in English, as well as other information that will help clarify the underlying technical concepts.

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.

Widgit form Google for translating English into Indic.

jDictionary has an intuitive user interface and is able to upgrade itself, upgrade its plugins, and provide news and information about new plugins.

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

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.

Opensource machine language translation tool.

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.

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.

WordNet is a large lexical database of English, developed under the direction of George A. Miller. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept.