The Unbound Bible is a collection of searchable Bibles with: various English versions; Greek; Hebrew; ancient translations; dozens of other language versions. Other Bible study tools include: Greek/Hebrew < & > English/Spanish/French dictionary, Matthew Henry's Commentary, Easton's Bible Dictionary, and Naves Topical Search.
The SWORD Project is the CrossWire Bible Society's free Bible software project. Its purpose is to create cross-platform open-source tools-- covered by the GNU General Public License-- that allow programmers and Bible societies to write new Bible software more quickly and easily. Its secondary purpose is to amass a library of Bibles and other Scripture-related texts that can be used by all SWORD Project-based software.