Anything built for Hunspell should work, which means anything built for OpenOffice or LibreOffice, too. The LibreOffice collection on GitHub is often a good starting point, and you can find their Dutch set here: https://github.com/LibreOffice/dictionaries/tree/master/nl_NL You need the .aff file and the two .dic files. Edit: Downloading the files is tricky. If you're not careful you end up downloading an HTML page instead, which won't work. This approach should work: Click on the