OpenDesign: a free Claude Design alternative

The free, open-source desktop app from the reel. Describe what you want and your own AI (Claude Code, Codex or an API key) designs it: prototypes, dashboards, slide decks and motion graphics.

CostFree and open source (Apache-2.0). You pay for the AI model that does the work.

Works withClaude Code, Codex, Cursor, Copilot and more, or your own API key

Runs onMac (Apple Silicon + Intel) and Windows. No Linux app yet.

Proof102k stars on GitHub

Checked on 19 Oct 2026. Tools change fast, so the official page always wins if it says something different.

What you need first

1A Mac or Windows computerLinux users can run it from source, there's no ready-made Linux app yet.

2An AI to do the workA coding agent you already use (Claude Code, Codex, Cursor...) or your own API key (OpenAI, Anthropic, Gemini, or a local model with Ollama).

Step by step

Download the desktop app

Get it from the official site or the GitHub Releases page (links below). Pick Mac (Apple chip or Intel) or Windows. No Node, no Terminal needed.

Connect your AI

Open the app. It finds coding agents already installed on your computer, like Claude Code or Codex. No agent? Add your own API key in the settings instead.

Type what you want

Describe it in plain English, for example "a landing page for my coffee shop" or "a 10-slide pitch deck for my bakery". Or start from one of its templates (15 deck templates, 36 themes).

Refine it

Ask for changes in the same project until it looks right. You can also add your brand colours and fonts as a design system.

Export

Slides export as PDF, PowerPoint (PPTX), HTML, ZIP or Markdown. Motion graphics render to an MP4 video.

Tip: On a Mac, if you want to use it from Claude Code and the od command does something weird, open Settings → MCP server in the app and copy the snippet from there.

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The catch

The app is free, the AI isn't. Your Claude, OpenAI or other plan or API credits pay for every design it makes.
No Linux app yet. Mac and Windows only, unless you run it from source.
Some features are still unfinished. The README lists the Figma import and some editing tools as alpha or partly shipped.
The cloud version costs money. The hosted OpenDesign Cloud has paid plans. You don't need it if you use your own agent or key.

Official links

OpenDesign on GitHub ↗Downloads (GitHub Releases) ↗Website ↗

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Unnerd AI · I'm not linked to OpenDesign, I just think it's useful.