The Smart Speller plug-in is currently available in the following languages: English, Dutch, French, German, Italian, Portuguese, Spanish, Polish, Russian, Czech.
Smart Speller supports spelling for the following languages, while new languages and language variants are added on a regular basis:
| Language | Language variant |
|---|---|
| Language | Language variant |
| Albanian | Albanian |
| Bahasa Indonesia | Bahasa Indonesia |
| Bahasa Melayu | Bahasa Melayu |
| Bosnian | Bosnian |
| Bulgarian | Bulgarian |
| Byelorussian | Byelorussian |
| Croatian | Croatian |
| Czech | Czech |
| Danish | Danish |
| Dutch | Dutch 2005 (Taalunie) |
| New Spelling (Groene Boekje) | |
| New Spelling (Van Dale) | |
| Flemish 2005 (Taalunie) | |
| Flemish New Spelling (Vlaams/Groene Boekje) | |
| Flemish New Spelling (Vlaams/Van Dale) | |
| Frisian | |
| Surinam | |
| English | USA |
| UK | |
| Australian | |
| New Zealand | |
| Canadian | |
| Irish | |
| South Africa | |
| Welsh | |
| Esperanto | Esperanto |
| Estonian | Estonian |
| Finnish | Finnish |
| French | French |
| New Spelling | |
| Belgian | |
| Belgian New Spelling | |
| Canadian | |
| Canadian New Spelling | |
| Breton | |
| Occitan | |
| German | Traditional |
| Reformed | |
| Reformed 2006 | |
| DPA | |
| Swiss | |
| Swiss Traditional | |
| Swiss Reformed | |
| Swiss DPA | |
| Austrian Traditional | |
| Austrian Reformed | |
| Austrian DPA | |
| Sorbian: Upper | |
| Greek | Greek |
| Greenlandic | Greenlandic |
| Hungarian | Hungarian |
| Icelandic | Icelandic |
| Italian | Italian |
| Latin | |
| Latvian | Latvian |
| Lithuanian | Lithuanian |
| Macedonian | Macedonian |
| Maltese | Maltese |
| Maori | Maori |
| Norwegian | Bokmal |
| Nynorsk | |
| Polish | Polish |
| Portuguese | Portuguese |
| Brazilian | |
| Romanian | Romanian |
| Russian | Russian |
| Saami | Saami |
| Serbian | Serbian |
| Slovak | Slovak |
| Slovenian | Slovenian |
| South African | Afrikaans |
| Zulu | |
| Xhosa | |
| Setswana | |
| Spanish | Basque |
| Catalan | |
| Galician | |
| Spanish (Castilian) | |
| Swedish | Swedish |
| Turkish | Turkish |
| Ukrainian | Ukrainian |
| Vietnamese | Vietnamese |


