cal.diy vs bundlephobia

cal.diy and bundlephobia share 10 technologies: Next.js, React, lru-cache, Zod, winston, Tailwind CSS, classnames, Lucide, Base UI, and dompurify. 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.

TypeScript50kRead on November 13, 2026, at commit ef7954dWhat is cal.diy built with?

Only in cal.diy

In common

pastelsky

bundlephobia

🏋️ Find out the cost of adding a new frontend dependency to your project

TypeScript9.6kRead on November 14, 2026, at commit 2a7d5b6What is bundlephobia built with?

Only in bundlephobia

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
cal.diy554,774 lines written4,286 code files
bundlephobia50,445 lines written253 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
bundlephobia27.6% of its commits signed by AIWith Codex and Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
cal.diyLast push November 11, 202616,071 commits49,990 stars
bundlephobiaLast push November 14, 2026855 commits9,623 stars
TestsThe files that test the code, and the share of code files a test imports.
cal.diy645 test files14.9% of its code files have a test that imports them
bundlephobia69 test files32% of its code files have a test that imports them

Frequently asked questions

Which is bigger, cal.diy or bundlephobia?
cal.diy, with 554,774 lines written; bundlephobia has 50,445.

The proof: calcom/cal.diy's code at commit ef7954d

Which has more GitHub stars, cal.diy or bundlephobia?
cal.diy, with 49,990 stars; bundlephobia has 9,623.

The proof: calcom/cal.diy on GitHub

Which has more tests, cal.diy or bundlephobia?
cal.diy, with 645 test files; bundlephobia has 69.

The proof: calcom/cal.diy's code at commit ef7954d

Which was updated more recently, cal.diy or bundlephobia?
bundlephobia: its last push was on November 14, 2026, and cal.diy's on November 11, 2026.

The proof: pastelsky/bundlephobia's commits on GitHub

Which has more commits signed by AI, cal.diy or bundlephobia?
bundlephobia: an AI signed 27.6% of its commits, with Codex and Claude Code; in cal.diy, 6.3%.

The proof: the commits each tool signed in pastelsky/bundlephobia

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