gettext catalog editor

 Poedit is an editor for gettext catalogs (.po files). It aims to provide a
 convenient approach to editing catalogs. It features UTF-8 support, fuzzy and
 untranslated records highlighting, whitespace highlighting, references browser,
 header editing and can be used to create new catalogs or update existing
 catalogs from source code with a single click. It is built with wxWidgets
 toolkit.