Contact
There is no support portal, because there is no account system. Email works fine.
Bugs and feature requests
Open an issue on GitHub with the smallest JSON that reproduces the problem. If the document is confidential, describe the shape instead — we never want you to paste anything sensitive into a public issue.
General questions
Email works. Expect a reply within a few days; this is a side project, not a support desk.
Advertising
Slots are sold directly rather than through a network marketplace. Say which placement you want (top, sidebar, in-content) and we will send current availability.
Security
If you find a way to make JSONForge leak a document, please report it privately by email first. The architecture makes this hard by design, which is exactly why a report would be valuable.