Source: https://seerepo.com/compare/calcom/cal.diy/vs/laurent22/joplin
Markdown source: https://seerepo.com/compare/calcom/cal.diy/vs/laurent22/joplin.md
Description: cal.diy and joplin share 3 technologies: Postgres, Sentry, and Stripe. Both are written in TypeScript.

# cal.diy vs joplin

cal.diy and joplin share 3 technologies: Postgres, Sentry, and Stripe. Both are written in TypeScript.

- [calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy): Scheduling infrastructure for absolutely everyone.
- [laurent22/joplin](https://seerepo.com/r/laurent22/joplin): Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

## What they share and what sets them apart

- In common: Postgres, Sentry, Stripe
- Only in cal.diy: Next.js, React, Redis, PostHog, Google
- Only in joplin: AWS S3

## Side by side

| | cal.diy | joplin |
|---|---|---|
| Size | 554,251 lines written, 4,310 code files | 496,066 lines written, 2,443 code files |
| Who writes it | 6.3% of its commits signed by AI. With Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot | 0.1% of its commits signed by AI. With Claude Code and CodeRabbit |
| Activity | Last push October 27, 2026, 16,059 commits, 49,471 stars | Last push October 27, 2026, 15,233 commits, 56,911 stars |
| Tests | 641 test files. 14.7% of its code files have a test that imports them | 926 test files. 25.7% 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, cal.diy or joplin?

cal.diy, with 554,251 lines written in 4,310 code files; joplin has 496,066 in 2,443.

The proof: [calcom/cal.diy's code at commit 56da01b](https://github.com/calcom/cal.diy/tree/56da01b4b1664894b784aca636eccab0c56cc141)

### Which has more GitHub stars, cal.diy or joplin?

joplin, with 56,911 stars; cal.diy has 49,471.

The proof: [laurent22/joplin on GitHub](https://github.com/laurent22/joplin)

### Which has more tests, cal.diy or joplin?

joplin, with 926 test files; cal.diy has 641.

The proof: [laurent22/joplin's code at commit b613d00](https://github.com/laurent22/joplin/tree/b613d0064d018c2f68d983c907ab88e2712da116)

### Which was updated more recently, cal.diy or joplin?

Both got their last push on October 27, 2026.

The proof: [laurent22/joplin's commits on GitHub](https://github.com/laurent22/joplin/commits)

### Which has more commits signed by AI, cal.diy or joplin?

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in joplin, 0.1%.

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

## Sources

- calcom/cal.diy: Read on October 28, 2026, at commit 56da01b (https://github.com/calcom/cal.diy/tree/56da01b4b1664894b784aca636eccab0c56cc141)
- laurent22/joplin: Read on October 28, 2026, at commit b613d00 (https://github.com/laurent22/joplin/tree/b613d0064d018c2f68d983c907ab88e2712da116)

## 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.