New filters were added to those already present within the matchms package to filter out spectra with incorrect annotations or mismatching metadata. In addition, filter functions were created that can repair annotation mistakes, or complete missing metadata from other fields. This ultimately reduces the number of spectra that have to be removed, which results in larger libraries with more diversity. A complete overview of all filters available in matchms can be found at Github . Here below, a list of new filters and their function is provided: