LanguageTool is a

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style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ...

, and

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, and all its features are available for download. LanguageTool website connects to a proprietary sister project LanguageTool Plus, which provides improved error detection for English and German, as well as easier revision of longer texts, following the

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. It was started by Daniel Naber for his

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in 2003 (then written in Python). It now supports 31 languages, each developed by volunteer maintainers, usually native speakers of each language. Based on error detection patterns, rules are created and then tested for a given text. The core app itself is free and open-source and can be downloaded for offline use. Some languages use ' n-gram' data, which is massive and requires considerable processing power and I/O speed, for some extra detections. As such, LanguageTool is also offered as a web service that does the processing of 'n-grams' data on the server-side. LanguageTool Plus also uses n-grams as part of its

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business model. LanguageTool web service can be used via a web interface in a

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, or via a specialized

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plug–ins for

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, Thunderbird, and

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. Its web app client can also be integrated on websites.

Technology

LanguageTool does not check a sentence for grammatical correctness, but whether it contains typical errors. Therefore, it's easy to invent ungrammatical sentences that LanguageTool will still accept. Error detection succeeds with a variety of rules based on XML or written in Java. XML-based rules can be created using an online form. More recent developments rely on large n-gram libraries that offer suggestions for improving misspellings with the help of artificial neural networks.

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{{Reflist, 2 Cross-platform free software Software using the LGPL license Nonfree Firefox WebExtensions Free software programmed in Java (programming language) Grammar checkers Free spelling checking programs Google Chrome extensions

Technology

See also

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