Changing the language in Paint Tool SAI depends entirely on whether you are using the classic Version 1 or the modern Version 2. While SAI 1 is designed for easy translation via configuration files, SAI 2 is much more rigid. Paint Tool SAI Version 1: The Config Method
Look for a language option in settings:
C:\Program Files\PaintToolSAI. Reinstall using a clean English installer (or Ver. 2).Alternative (Replacement): Many users prefer to download a community-translated language.conf (such as the Alternate English UI on DeviantArt) and replace the original file in the root folder. How to Change Language in Paint Tool SAI 2 paint tool sai change language
file, copy those contents directly into the main root folder to overwrite the default language. The Custom Translation Route: Changing the language in Paint Tool SAI depends
If you encounter any issues while changing the language in Paint Tool SAI, here are some troubleshooting tips: Cause: You have a hybrid install
C:\Program Files\PaintToolSAI (or C:\Program Files (x86)\PaintToolSAI)C:\Program Files\PaintToolSAI Ver.2).lang_conf folder → open language.conf with Notepad.language.conf, you will see lines like:
; Language setting
Language = japanese
japanese to one of the installed languages (e.g., english, french, german, korean)..res files in the lang folder.