Source: https://seerepo.com/compare/Mail-0/Zero/vs/paperclipai/paperclip
Markdown source: https://seerepo.com/compare/Mail-0/Zero/vs/paperclipai/paperclip.md
Description: Zero and paperclip share 21 technologies: React, Sentry, Vite, Postgres, MCP, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, motion, dnd-kit, cmdk, react-resizable-panels, Lucide, Better Auth, ai, dompurify, Zod, Drizzle, OpenRouter, and @clack/prompts. Both are written in TypeScript.

# Zero vs paperclip

Zero and paperclip share 21 technologies: React, Sentry, Vite, Postgres, MCP, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, motion, dnd-kit, cmdk, react-resizable-panels, Lucide, Better Auth, ai, dompurify, Zod, Drizzle, OpenRouter, and @clack/prompts. Both are written in TypeScript.

- [Mail-0/Zero](https://seerepo.com/r/Mail-0/Zero): Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord
- [paperclipai/paperclip](https://seerepo.com/r/paperclipai/paperclip): The open-source app everyone uses to manage agents at work

## What they share and what sets them apart

- In common: React, Sentry, Vite, Postgres, MCP, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, motion, dnd-kit, cmdk, react-resizable-panels, Lucide, Better Auth, ai, dompurify, Zod, Drizzle, OpenRouter, @clack/prompts
- Only in Zero: React Router, idb-keyval, PostHog, Hono, Redis, Gmail, Resend, tRPC, next-themes, sonner, React Hook Form, tiptap, react-hotkeys-hook, novel, ProseMirror, recharts, tiptap-markdown, virtua, canvas-confetti, input-otp, react-day-picker, react-wrap-balancer, vaul, agents, ElevenLabs, @react-email/components, email-addresses, sanitize-html, streamdown, @hookform/resolvers, @tsndr/cloudflare-worker-jwt, jose, he, Cheerio, mimetext, react-email, string-strip-html, postal-mime, zod-to-json-schema
- Only in paperclip: Express, embedded-postgres, Google, aws-sdk-s3, AWS S3, Tokio, OpenAI, Anthropic, Svix, react-router-dom, acpx, Cursor, aws-sdk-sts, hmac, aws-sdk-bedrockagentcore, react-markdown, remark-gfm, jsonschema, Ajv, @boxd-sh/sdk, Cloudflare, @daytonaio/sdk, e2b, @kubernetes/client-node, novita-sandbox, three, Vercel, chat, ai-sdk, sharp, ajv-formats, opentelemetry, pino, pino-http, @mdxeditor/editor, lexical, Base UI, @lezer/highlight, CodeMirror, Mermaid, xterm, @assistant-ui/react, @spekoai/client, mdast-util-from-markdown, yaml

## Side by side

| | Zero | paperclip |
|---|---|---|
| Size | 91,712 lines written, 441 code files | 3,556,913 lines written, 5,493 code files |
| Who writes it | 0.6% of its commits signed by AI. With CodeRabbit, Devin, and Claude Code | 26.5% of its commits signed by AI. With Claude Code, Codex, Cursor, and GitHub Copilot |
| Activity | Last push October 27, 2026, 2,805 commits, 10,886 stars | Last push November 12, 2026, 7,243 commits, 113,227 stars |
| Tests | 62 test files. 16.6% of its code files have a test that imports them | 6,093 test files. 62.7% 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, Zero or paperclip?

paperclip, with 3,556,913 lines written; Zero has 91,712.

The proof: [paperclipai/paperclip's code at commit 51d7764](https://github.com/paperclipai/paperclip/tree/51d77648bc62c2f05fdf377df1b35b1673da3b1b)

### Which has more GitHub stars, Zero or paperclip?

paperclip, with 113,227 stars; Zero has 10,886.

The proof: [paperclipai/paperclip on GitHub](https://github.com/paperclipai/paperclip)

### Which has more tests, Zero or paperclip?

paperclip, with 6,093 test files; Zero has 62.

The proof: [paperclipai/paperclip's code at commit 51d7764](https://github.com/paperclipai/paperclip/tree/51d77648bc62c2f05fdf377df1b35b1673da3b1b)

### Which was updated more recently, Zero or paperclip?

paperclip: its last push was on November 12, 2026, and Zero's on October 27, 2026.

The proof: [paperclipai/paperclip's commits on GitHub](https://github.com/paperclipai/paperclip/commits)

### Which has more commits signed by AI, Zero or paperclip?

paperclip: an AI signed 26.5% of its commits, with Claude Code, Codex, Cursor, and GitHub Copilot; in Zero, 0.6%.

The proof: [the commits each tool signed in paperclipai/paperclip](https://seerepo.com/r/paperclipai/paperclip/ai)

## Sources

- Mail-0/Zero: Read on November 13, 2026, at commit 3613273 (https://github.com/Mail-0/Zero/tree/36132735ca3b734b23f48127f9271c80d1ba76e7)
- paperclipai/paperclip: Read on November 12, 2026, at commit 51d7764 (https://github.com/paperclipai/paperclip/tree/51d77648bc62c2f05fdf377df1b35b1673da3b1b)

## 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.