Coptic Gnostic Library Online is the only authoritative edition of many of the Coptic writings of the Gnostics from the first centuries AD. It was originally published by Brill in fourteen hardback volumes as part of the Nag Hammadi (and Manichaean) Studies series between 1975 and 1995, under the general editorship of James M. Robinson.

Coptic Gnostic Library Online contains all the texts of the Nag Hammadi codices, both in the original Coptic and in translation. Each text has its own introduction. Coptic Gnostic Library Online is the starting point for all research into ancient Gnosticism. It is the result of decades of dedicated research by the most distinguished international scholars in this field.