Figma Plugin API

Build custom tools and automate design workflows using standard web technologies directly within the Figma engine.

The Figma Plugin API gives you direct programmatic access to the design document: manipulate layers, export assets, and automate repetitive tasks using JavaScript. Plugins run logic in a secure sandbox while leveraging a separate iframe for custom UIs built with HTML and CSS (or frameworks like React). You can fetch live data from external APIs, sync design systems across files, or generate complex geometry with a few lines of code. It is the industry standard for extending design capabilities: providing the same high-performance environment used by Figma’s own internal engineering teams.

https://www.figma.com/plugin-docs/