All existing Middle Frisian texts are contained in the Middle Frisian corpus. The texts are tagged and lemmatised; spelling variants have been brought together.
A digital collection of Frisian books, scientific magazines and newspaper articles, which can be used to investigate various aspects of Frisian culture including language and literature. The corpus contains more than 25 million words
The Dutch Song Database (Nederlandse Liederenbank in Dutch) contains more than 125,000 songs in the Dutch and Flemish language, from the Middle Ages through the twentieth century.