Open Design

Open Design is an open-source, local-first design workspace that transforms any coding agent—Claude Code, Codex, Cursor, Gemini CLI, and 21 others—into a full design engine. It moves from a one-line idea to prototypes, landing pages, slides, images, and HTML video (MP4), all running on your own machine. Built for solo builders, designers, engineers, product managers, and marketers, Open Design is Apache-2.0 licensed and fully BYOK: you supply your own API keys and retain ownership of every artifact as local files. The desktop app, daemon, and skill runtime run locally with no vendor server—your data goes only to the provider you choose. Key features include a composable design system that learns from your preferences over time (stored as portable DESIGN.md files), 161+ skill workflows, 129+ design systems, and 217+ plugins in a marketplace. You can generate runnable HTML, PDF, PPTX, and MP4 files, preview them in a sandbox, and export or hand them off. Open Design supports 21 coding agents out of the box, switching agents requires only a config change, and you can self-host or fork the entire project under Apache-2.0. Pricing is transparent. The software itself is free. You only pay for hosted model credits if you use Open Design's managed models. Plans: Free (BYOK only, $0/mo), Plus ($16–$20/mo, inclusive credits), Pro ($70–$100/mo), and Max ($120–$200/mo) add hosted model credits for flagships like Claude Opus 4.7 and GPT-5.5 Pro. Every plan supports BYOK. There is no subscription fee for the software. Where alternatives like Claude Design are closed, hosted, and model-locked, Open Design is local-first, open source, and model-agnostic. It's ideal for developers and designers who want full control over their design pipeline, but requires comfort with CLI tools and coding agents—it's not a managed cloud service for non-technical users.