Portainer Template Studio · schema-driven JSON editor (V3)

Template editor

Container (type 1)
Ports
Format: 8080:80/tcp or 53/udp
Volumes
Labels
Environment

Generated JSON

“Add to collection” lets you build a multi-template file; chips below are the collection — click one to remove it. Validation targets PortainerAppTemplateV3: type 1 requires image; types 2–4 require repository.url + repository.stackfile.