MultilingualPress

Run each language in a separate site of your WordPress multisite and connect the content in a lightweight user interface. To allow your users switch between languages, create a language switcher in your custom menu or use a customizable widget.

This plugin lets you connect an unlimited amount of sites with each other. Set a main language for each site, create relationships (connections), and start writing. You get a new field now to create a linked post on all the connected sites automatically. They are accessible via the post/page editor screen – you can switch back and forth to translate them.

In contrast to most other translation plugins there is no lock-in effect: When you disable our plugin, all sites will still work as separate sites without any data-loss or garbage output.