Loeb Classical LibraryThe Digital Loeb Classical Library contains more than 520 volumes of Latin, Greek and English texts aiming to be a virtual library of all that is important in Greek and Latin Literature, epic and lyric poetry, history, travel, philosophy and oratory, medical writers and mathematicians, and the Church Fathers who make particular use of pagan culture.
Thesaurus Linguae Graecae (TLG)A comprehensive library of Greek literature from Homer to the fall of Byzantium AD1453.
Thesaurus Linguae LatinaeThe Thesaurus Linguae Latinae is a comprehensive, scholarly etymological dictionary of ancient Latin, based on critical analysis of texts from the earliest times up to 600 A.D. The dictionary enables the user to follow the semantic development and usage of each word.
See also the list of General databases for Classics, to find secondary sources, journal articles, commentary and criticism etc.
Databases for Classics and Ancient History provide access to a huge range of primary source archives and secondary sources online. They allow you to search and access material without having to travel to archives and can bring material from across different archives together under a theme. They can also provide character recognition, full-text search, transcripts along with supporting contextual analysis, accompanying essays or tools such as timelines to help you make sense of the material you are working with.