Open-source 'open-design' reproduces Claude Design tooling with 71 prebuilt brand kits
- GitHub project open-design launched Tuesday as a local-first, open-source replica of Anthropic’s Claude Design, letting users generate slides, mockups, and landing pages. - The repository says it combines 19 design “skills” with 71 brand-grade design systems, and works with Claude Code, Codex, Cursor, Gemini, and Qwen. - It arrived 11 days after Claude Design’s April 17 debut, showing how fast Anthropic workflows are being copied. (anthropic.com)
Open-design went live on GitHub Tuesday as a local-first, open-source replica of Anthropic’s Claude Design, with prompts that turn into slides, prototypes, and one-pagers. (github.com) The repository describes itself as “the open-source alternative to Claude Design” and says it can be deployed on Vercel or run locally with bring-your-own keys. (github.com) Its README says the system is driven by 19 composable skills and 71 brand-grade design systems, with exports for HTML, PDF, and PowerPoint files. (github.com 1) (github.com 2) The same README says open-design does not ship its own model. It plugs into coding agents including Claude Code, Codex CLI, Cursor Agent, Gemini CLI, OpenCode, Qwen Code, and an Anthropic application programming interface fallback. (github.com) Anthropic introduced Claude Design on April 17, 2026 as a research preview for Claude Pro, Max, Team, and Enterprise subscribers, built on Claude Opus 4.7. (anthropic.com 1) (anthropic.com 2) Anthropic said Claude Design lets users collaborate with Claude on “designs, prototypes, slides, one-pagers, and more,” which is the same product category open-design is now targeting in public code. (anthropic.com) (github.com) Open-design’s Chinese README says the project was built because Claude Design was closed-source, paid, cloud-only, and tied to Anthropic’s own model and internal skills. (github.com) That README also says open-design borrows ideas from four open-source projects, including OpenCoworkAI’s open-codesign and multica-ai’s multica, while packaging the workflow as a web app plus a local daemon. (github.com) The repository’s design-system folders include branded templates modeled on companies such as Linear, Stripe, Vercel, Airbnb, Tesla, Notion, Anthropic, Apple, Cursor, Supabase, and Figma. (github.com) The speed is the point: Anthropic announced Claude Design 11 days ago, and an open-source clone with multi-agent support and dozens of brand kits is already circulating on GitHub. (anthropic.com) (github.com)
