LanguageTool is a proofreading software for English, French, German, Polish, Russian, and more than 20 other languages.
The core app itself is free and open-source, and can be downloaded for offline use. Browser and Office add-ons are free of charge. The Premium for-a-fee versions provide enhanced grammar, punctuation and style checking and API access.
Language Coverage
English
,
German
,
Arabic
,
Asturian; Asturleonese; Bable; Leonese
,
Belarusian
,
Breton
,
Catalan; Valencian
,
Chinese
,
Danish
,
Dutch; Flemish
,
Esperanto
,
French
,
Galician
,
Modern Greek (1453-)
,
Irish
,
Italian
,
Japanese
,
Khmer; Central Khmer
,
Persian
,
Polish
,
Portuguese
,
Romanian; Moldavian; Moldovan
,
Russian
,
Slovak
,
Slovenian
,
Swedish
,
Spanish; Castilian
,
Tagalog
,
Tamil
,
Ukrainian
