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cal.diy vs inbox-zero

cal.diy and inbox-zero share 26 technologies: Next.js, Postgres, Redis, Sentry, Stripe, React, Vercel, PostHog, Zod, Tailwind CSS, next-themes, class-variance-authority, React Hook Form, TanStack, sonner, Framer, Radix UI, Lucide, jose, @hookform/resolvers, ical.js, tailwind-merge, nodemailer, dompurify, cmdk, and react-day-picker. Both are written in TypeScript.

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What they share and what sets them apart

calcom

cal.diy

Scheduling infrastructure for absolutely everyone.

TypeScript49.9kRead on November 10, 2026, at commit 2eb48ecWhat is cal.diy built with?

Only in cal.diy

In common

elie222

inbox-zero

The world's best AI personal assistant for email. Open source app to help you reach inbox zero fast.

TypeScript13kRead on November 10, 2026, at commit 845ed68What is inbox-zero built with?

Only in inbox-zero

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
cal.diy554,567 lines written4,285 code files
inbox-zero733,800 lines written2,514 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
cal.diy6.3% of its commits signed by AIWith Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot
inbox-zero14.7% of its commits signed by AIWith Claude Code, Cursor, CodeRabbit, and Codex
ActivityFrom GitHub and its history, on the day SeeRepo read it.
cal.diyLast push November 3, 202616,069 commits49,876 stars
inbox-zeroLast push November 10, 202610,459 commits12,966 stars
TestsThe files that test the code, and the share of code files a test imports.
cal.diy644 test files14.8% of its code files have a test that imports them
inbox-zero1,352 test files47.3% of its code files have a test that imports them

Frequently asked questions

Which is bigger, cal.diy or inbox-zero?
inbox-zero, with 733,800 lines written; cal.diy has 554,567.

The proof: elie222/inbox-zero's code at commit 845ed68

Which has more GitHub stars, cal.diy or inbox-zero?
cal.diy, with 49,876 stars; inbox-zero has 12,966.

The proof: calcom/cal.diy on GitHub

Which has more tests, cal.diy or inbox-zero?
inbox-zero, with 1,352 test files; cal.diy has 644.

The proof: elie222/inbox-zero's code at commit 845ed68

Which was updated more recently, cal.diy or inbox-zero?
inbox-zero: its last push was on November 10, 2026, and cal.diy's on November 3, 2026.

The proof: elie222/inbox-zero's commits on GitHub

Which has more commits signed by AI, cal.diy or inbox-zero?
inbox-zero: an AI signed 14.7% of its commits, with Claude Code, Cursor, CodeRabbit, and Codex; in cal.diy, 6.3%.

The proof: the commits each tool signed in elie222/inbox-zero

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