Install texstudio-l10n by entering the following commands in the terminal:
sudo apt update sudo apt install texstudio-l10n
Description:
LaTeX Editor (localization)
TeXstudio is a program based on Texmaker, which integrates many tools needed to develop documents with LaTeX in just one application. Using its editor you can write your documents with the help of interactive spell checking, syntax highlighting, code completion and more... . This package contains the following translations: cs, de, el, es, fa, fr, hu, it, ja, nl, pl, pt_BR, ru, tr_TR, uk, vi, zh_CN.
Homepage: http://texstudio.sf.net/
Version: 2.12.6+debian-2
Section: universe/localization