The Society of Biblical Literature has launched a web page providing resources for text-critical research, writing, and collaboration. SBL members who log in will find the reading text (the upper text without critical apparatus) of four GBS editions available in several file formats, including downloadable PDFs and texts viewable via a GBS online platform:
• Biblia Hebraica Stuttgartensia, 5th revised edition
• Septuaginta, edited by Alfred Rahlfs, 2nd revised edition
• Biblical Sacra luxta Vulgatam Versionem, 5th revised edition
• UBS Greek New Testament, 4th revised edition
This web page also includes links to the SBL Fonts and the SBL Greek New Testament.
You can access the website here.