Mocksy vs OpenDesign

Mocksy has no write-up on Specifiction yet; its figures are above.

OpenDesign is an open-source AI design workspace that uses local coding agents to create runnable design files. It can produce prototypes, landing pages, slide decks, dashboards, brand systems, images, and HTML video, with clickable prototypes and HTML or code exports. The site lists 152+ design systems and a library of templates and skills. OpenDesign supports 17 first-party bring-your-own-key adapters, including Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot CLI, OpenCode, and Qwen. Its API can also be used with Codex, Claude Code, DSH, OpenCode, and Hermes through an OpenDesign API key. The desktop app, daemon, and skill runtime run on the user’s machine, and generated files are stored in the project directory. OpenDesign says it has no server of its own; prompts and skill context go to the provider associated with the keys the user supplies. The app supports macOS 11 or newer on Apple Silicon or Intel, and Windows 10 or 11 x64. The free plan is local CLI plus BYOK, with no recurring OpenDesign model-credit grant; paid plans start at $5/user/mo.