Source: https://seerepo.com/compare/HarnessMD/munder-difflin/vs/nexu-io/open-design
Markdown source: https://seerepo.com/compare/HarnessMD/munder-difflin/vs/nexu-io/open-design.md
Description: munder-difflin and open-design share 6 technologies: React, SQLite, PostHog, Electron, xterm, and remotion. Both are written in TypeScript.

# munder-difflin vs open-design

munder-difflin and open-design share 6 technologies: React, SQLite, PostHog, Electron, xterm, and remotion. Both are written in TypeScript.

- [HarnessMD/munder-difflin](https://seerepo.com/r/HarnessMD/munder-difflin): an open-source alternative to the dots, bots and muses of the world, run an office of claude code/codex like agents on your laptop, sandboxes or anywhere, uses your existing subscriptions
- [nexu-io/open-design](https://seerepo.com/r/nexu-io/open-design): The 1st Collaborative AI Design Agent Workspace. Local-first and open source. Create motion, prototypes, websites, apps, dashboards, presentations, images, and videos with your team and AI agents. Share work, exchange feedback, and iterate together in one workspace.

## What they share and what sets them apart

- In common: React, SQLite, PostHog, Electron, xterm, remotion
- Only in munder-difflin: Vite, pixi.js, monaco-editor, @lezer/highlight, @uiw/react-codemirror, CodeMirror, react-markdown, remark-gfm
- Only in open-design: Express, MCP, Next.js, Anthropic, @deepseek-ai/dsh-session, @deepseek-ai/cordis, pillow, PostCSS, Cheerio, htmlparser2, pdf-lib, pptxgenjs, prom-client, Tailwind CSS, motion, Excalidraw, lexical, three, micromark, micromark-extension-gfm, dompurify, jspdf, shiki, Zod, deepseek-ai

## Side by side

| | munder-difflin | open-design |
|---|---|---|
| Size | 178,841 lines written, 398 code files | 2,208,203 lines written, 3,982 code files |
| Who writes it | 71.1% of its commits signed by AI. With Claude Code and Cursor | 8.5% of its commits signed by AI. With Cursor, Claude Code, Codex, Devin, and GitHub Copilot |
| Activity | Last push November 14, 2026, 1,165 commits, 9,528 stars | Last push November 12, 2026, 3,814 commits, 107,264 stars |
| Tests | 132 test files. 2.8% of its code files have a test that imports them | 3,124 test files. 34.9% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, munder-difflin or open-design?

open-design, with 2,208,203 lines written; munder-difflin has 178,841.

The proof: [nexu-io/open-design's code at commit 6147958](https://github.com/nexu-io/open-design/tree/614795896e09a2c1682b24cc1406529baf531bd7)

### Which has more GitHub stars, munder-difflin or open-design?

open-design, with 107,264 stars; munder-difflin has 9,528.

The proof: [nexu-io/open-design on GitHub](https://github.com/nexu-io/open-design)

### Which has more tests, munder-difflin or open-design?

open-design, with 3,124 test files; munder-difflin has 132.

The proof: [nexu-io/open-design's code at commit 6147958](https://github.com/nexu-io/open-design/tree/614795896e09a2c1682b24cc1406529baf531bd7)

### Which was updated more recently, munder-difflin or open-design?

munder-difflin: its last push was on November 14, 2026, and open-design's on November 12, 2026.

The proof: [HarnessMD/munder-difflin's commits on GitHub](https://github.com/HarnessMD/munder-difflin/commits)

### Which has more commits signed by AI, munder-difflin or open-design?

munder-difflin: an AI signed 71.1% of its commits, with Claude Code and Cursor; in open-design, 8.5%.

The proof: [the commits each tool signed in HarnessMD/munder-difflin](https://seerepo.com/r/HarnessMD/munder-difflin/ai)

## Sources

- HarnessMD/munder-difflin: Read on November 15, 2026, at commit 34cc86c (https://github.com/HarnessMD/munder-difflin/tree/34cc86c6b0b84aa6ce4a7a830c8015cc50a0b0c7)
- nexu-io/open-design: Read on November 12, 2026, at commit 6147958 (https://github.com/nexu-io/open-design/tree/614795896e09a2c1682b24cc1406529baf531bd7)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.