You draw a template, name the layers that change, then send JSON. jsontoimg fills those layers and returns a PNG, JPG, WebP, AVIF or PDF.
Use it for Open Graph cards, certificates, tickets and product banners: one layout, a file per record. Call it from the API, n8n, the CLI or MCP. Name a layer and that name is the key. Pin a version so an edit does not break a live render.
Credits are images and PDF pages only. 25 lifetime images free, no card. Prepaid packs from $5, or Starter at $29/mo.
