Documentero - Turn your documents into templates that can generate .docx or .pdf documents using shareable forms or API
docassemble - docassemble is a free, open-source expert system for guided interviews and document assembly.
Docmosis - Document generation software
Knackly - Generate contracts, emails, or other documents of any complexity by automating your knack for doing...
Sigstr - Email signature marketing
HotDocs - Template-driven, automated document & form assembly software