Compare Builder.io vs Pencil.dev

It depends on your use case: Builder.io fits teams with designers and marketers, and Pencil.dev fits developers who design and code in one place.

Builder.io adds a headless CMS, A/B testing, personalization and role-based access, so non-developers can ship and iterate on live experiences. Pencil.dev keeps Git-versioned design files next to your code, imports from Figma, and feeds the design to AI coding agents through MCP. Its layers panel and CSS property editor let you make quick changes by hand without spending AI tokens, and it can run several agents in parallel on the canvas. Pencil.dev is free during early access but needs a separate Claude Code subscription starting at $20/month.

Let marketing ship landing pages without developersBuilder.io

Keep design files versioned in Git alongside codePencil.dev

Solo developer designing and building UI in one placePencil.dev

Run A/B tests and personalization on live pagesBuilder.io

Agency managing multiple client sites through a CMSBuilder.io

Choose Builder.io if…

Choose Builder.io if non-developers need to publish, test and personalize pages, or you need a CMS and enterprise access controls.

⚠ Builder recently renamed its products (Fusion is now Builder Code, Publish is now Builder Content), so older guides may use the old names.

Choose Pencil.dev if…

Choose Pencil.dev if you're a developer who wants design files in Git and a canvas that feeds your AI coding agent directly.

⚠ Free only during early access, it requires a separate coding-agent subscription, and it doesn't support real-time multiplayer design editing.