In most modpacks, the FTB quest string is hard coded in the .snbt file, so localization is cumbersome. This application allows you to extract quest strings into a json file for ease of localization and you can easily create a rough translation through Google Translate.
Note: Works only with Minecraft 1.15+ modpacks
git clone https://github.com/Soochaehwa/FTB-Quest-Localizer
cd FTB-Quest-Localizer
npm install
The root directory must have a ftbquests directory to extract.
npm run start
Answer the questions in the prompt
Translatable language codes can be found here.
String replaced by translation key
Extracted string file and machine translated file