qt4-linguist-tools - 4:4.8.7+dfsg-18+deb10u1 main

Qt is a cross-platform C++ application framework. Qt's primary feature
is its rich set of widgets that provide standard GUI functionality.
.
This package contains lupdate and lrelease. lupdate is a command line tool
that finds the translatable strings in the specified source, header and
Qt Designer interface files, and produces or updates .ts translation files.
lrelease is a command line tool that produces QM files out of TS files.