Original: Full PDF version of the Septuagint (without diacritical marks) Titus Text Collection: Vetus Testamentum graece iuxta LXX interpretes (advanced research tool) Septuagint published by the Church of Greece Plain text of the whole LXX, including the anagignoskomena Greek-English interlinear of OT & NT.
Simplified: Septuagint published by the Church of Greece Plain text of the whole LXX, including the anagignoskomena Greek-English interlinear  of OT & NT.