Didier Willis is a French programmer and expert on J.R.R. Tolkien's languages. He has written several articles and studies on Arda in the French e-zine Hiswelókë.
He also has compiled the Hiswelókë's Sindarin Dictionary as well as the Dragon Flame application.
- Hiswelókë (French)
- sindict - Mailing list for discussion about the development of the Sindarin dictionary.