Wudpecker works with a few dozen languages. What this means in practice, you can read more about in these articles.
List of all languages Wudpecker supports
Bulgarian: bg
Catalan: ca
Chinese (Mandarin, Simplified):zh,zh-CN,zh-Hans
Chinese (Mandarin, Traditional):zh-TW,zh-Hant
Czech: cs
Danish: da, da-DK
Dutch: nl
English: en, en-US, en-AU, en-GB, en-NZ, en-IN
Estonian: et
Finnish: fi
Flemish: nl-BE
French: fr, fr-CA
German: de
German (Switzerland): de-CH
Greek: el
Hindi: hi
Hungarian: hu
Indonesian: id
Italian: it
Japanese: ja
Korean: ko, ko-KR
Latvian: lv
Lithuanian: lt
Malay: ms
Multilingual (Spanish + English): multi
Norwegian: no
Polish: pl
Portuguese: pt, pt-BR
Romanian: ro
Russian: ru
Slovak: sk
Spanish: es, es-419
Swedish: sv, sv-SE
Thai: th, th-TH
Turkish: tr
Ukrainian: uk
Vietnamese: vi