docassemble - docassemble is a free, open-source expert system for guided interviews and document assembly.

ProntoForms - ProntoForms is a mobile business solutions application, converting paper forms onto any tablet or mobile device.

Knackly - Generate contracts, emails, or other documents of any complexity by automating your knack for doing...

ProcessMaker - ProcessMaker is an easy to use BPM and workflow software solution. It is used to design, automate, and deploy business processes of any kind.

HotDocs - Template-driven, automated document & form assembly software

Forms On Fire - Forms On Fire provides a complete, customizable mobile forms and workflow system that is reliable and secure, works offline or online.