QuestSoft QTranslate
Free
QTranslate is a free translator for Windows.
dict.cc
Free
dict.cc is a free, multilingual online dictionary. The site's database can also be downloaded and used offline.
Apertium
Open Source
Apertium is a free/open-source rule-based machine translation platform.
Compare DeepL Translator with alternatives
Compare QuestSoft QTranslate and DeepL Translator and decide which is most suitable for you.
Compare Apertium and DeepL Translator and decide which is most suitable for you.
Compare dict.cc and DeepL Translator and decide which is most suitable for you.