The surviving leaves and fragments are held by the British Library, the University Library in Leipzig, the National Library of Russia, and the Monastery of Saint Catherine, Mount Sinai (from which it gets its name).
A 2005 agreement between the institutions led to a project to (among other goals) photograph and publish online the Codex Sinaiticus.
Each page and fragment has been photographed under even lighting for maximum clarity, and again under angled light to clearly show the surface characteristics.
The text has been transcribed and passages are being progressively translated into English, German and Russian.
The images and text are now displayed side by side on the Codex Sinaiticus web site. The final pages were added this week.
Apart from its religious significance, the Codex Sinaiticus is regarded as an outstanding example of early book production. It was produced in a period when books were generally replacing rolls of parchment or papyrus.