OpenPencil isn't just another design tool with a magic AI button. It is structurally built for AI.
Here is why it's different:
Agentic Design (MCP Server): You can connect Claude, Cursor, or any MCP-compatible agent directly to your design. Tell your AI IDE to "update the login screen to match the new dark mode theme," and it modifies the design file without you ever touching a mouse.
Design-as-Code: The .op format is pure JSON. Finally, you can Git commit, diff, and PR your design files just like your codebase.
100% Open Source (MIT): No subscriptions, no vendor lock-in. Build on top of it, fork it, make it yours.
I built this because I believe the future of design is Human creativity + Agent execution.
I'd love your feedback! Drop your questions below, and let me know what features you want to see next!
verdverm•2h ago
Please also review the guidelines and FAQ, you have only posted this link 3x now. HN has a rule about not using it for primarily self promotion.
finiking•17m ago
Actually, there have been commits to the repo every day. The duplicate submissions today were a genuine accident on my part—I got a bit confused by the submission system as a first-timer and accidentally posted it again. My apologies for that.
I completely respect HN's guidelines on self-promotion. Going forward, I will only post updates here when there is a major version release or a significant architectural change. Thanks for understanding!