DualWord-index - open-source cross-platform Xapian index viewer
With its help you can:
- browse documents
- sort and view a list of terms
- perform search using default Xapian query parser, no stemming. (query syntax)
Source code and files

Future projects:

DualWord - open-source foreign language vocabulary trainer for Linux.
- Single choice questions.
- Text to speech support.
- User statistics.
- Languages: English, German, French, Spanish, Russian.
Source code and files are available at: sourceforge.net