Paper (paper.design)

Paper is a modern design tool built on a pretty sensible premise: your canvas should speak the same language as your codebase. Founded by Stephen Haney (previously behind Modulz and Radix UI), Paper renders everything in real HTML and CSS, which means designs export as clean, production-ready code rather than static assets that need to be rebuilt from scratch. It combines the expressive depth you'd expect from tools like Photoshop and Illustrator—pixel editing, animated shaders, P3 color space support—with the structured layout behavior of real CSS, so your design decisions actually survive the trip to production. Backed by a $4.2M seed round led by Accel, Paper is currently in open alpha with a desktop app for Mac, a web editor, and an ambitious public roadmap.

Where Paper gets especially interesting is its agent-first architecture. Through MCP and direct IDE/CLI connections, any coding agent—Claude Code, Cursor, Codex, Copilot—can read and write to your Paper canvas in real time, creating a genuine two-way design-to-code workflow. Agents can pull live data from APIs, databases, or your CMS directly into design layers (goodbye lorem ipsum), handle the tedious work like responsive variants and consistency checks, and sync tokens and components back to your repo. Paper calls this the "anti-slop" philosophy: let agents handle the boilerplate so designers can focus on the creative calls that actually matter. It's less "AI replaces the designer" and more "AI clears the runway so the designer can land something real."