Solid is provided by SIL International and the Payap Language Software group.

System Requirements

Windows 7 SP1, Windows 8, Windows 10. It requires .net 4.6.1 or greater.


Open source (MIT License).


Solid on github.


Cambell Prince (Payap Language Software): Design, Code
John Hatton (SIL International){.external}): Design, Code
Jonathan Coombs (formerly SIL International Asia Area): Design, Code


Payap University Linguistics Institute, Chiang Mai, Thailand
Gary Simons (SIL International)
Chuck Grimes (SIL International): Designer of the MDF system.

About SIL

SIL International is a faith-based nonprofit organization committed to serving language communities worldwide as they build capacity for sustainable language development. SIL does this primarily through research, translation, training and materials development. SIL works alongside ethnolinguistic communities and their partners as they discover how language development addresses the challenging areas of their daily lives—social, cultural, political, economic and spiritual.

SIL Language Technology supports these activities by developing software, fonts and keyboards. To find out more about our work follow the links at the bottom of this page.