e-Sword - e-Sword is a feature rich and user friendly free Windows app with everything needed to study the Bible in an enjoyable and enriching manner!
Xiphos - Xiphos (formerly known as GnomeSword) is a Bible study tool written for Linux, UNIX, and Windows...
JW Library - Study the Bible in English, Koine Greek, and over a hundred other languages.
Eloquent - Eloquent is a free & open-source application for research and study of God and His Word.
MySword - MySword is a free offline Bible study tool for Android, Bible study has never been this fun and easy; study the Bible, compare different translations, lookup Strong's Hebrew and Greek Lexicon, read commentaries, dictionaries, books, maps
Bible Explorer - Bible Explorer is the fastest and easiest to use free bible study software.