Nobody clicks a naked link. betterimage.io turns a post into a social card in under a minute: paste the URL and the editor fills in the title, description, author and images, on a design picked to fit the page. Or start from one of 100+ designs.

Key features:

  • Paste a URL, get a card filled from the page
  • 100+ ready-made designs
  • One design exports at every size: 1200×630 link preview, YouTube thumbnail, Instagram square and portrait, story and Pinterest pin
  • REST API with signed og:image URLs and an MCP server for developers

Free with a small watermark and no signup; $4.99 once for clean files; API plans from $9/month.