React and plain HTML projects can be checked before a working build uses credits; publishing has a separate plan requirement.
Check before building
Fabricate’s October 30 changelog says Import a project, in the sidebar, accepts a public GitHub link or ZIP file for a React or plain HTML project and checks it for free. The first build that gets it running uses credits. The free stage is therefore the check, rather than a completed running copy.
Publishing has another requirement
The October 14 change says publishing an app, or publishing changes to it, now requires a paid plan. That later rule supersedes June’s first‑publish‑free entry. Build credits and a publishing plan are separate requirements: the import entry does not say the check needs a paid plan, nor does it restore free publishing.
Engineers pair programming, December 20, 2012; archival context, not Fabricate staff or interface. Photo: Vajrapani666 / Wikimedia Commons, CC BY‑SA 3.0. Display crops retain the same licence.