Lokalize is the localization tool for KDE software and other free and open source software. It is also a general computer-aided translation system (CAT) with which you can translate OpenDocument files (*.odt). Translate-Toolkit is used internally to extract text for translation from .odt to .xliff files and to merge translation back into .odt file.
This button only works with Discover and other AppStream application stores. You can also use your distribution's package manager.
Lokalize Windows installers are also available to download from the binary-factory. These versions don't contain the translations and are intended for testing purpose. Get involved and help us make them better!