Which is bigger, cal.diy or Stirling-PDF?

Stirling-PDF, with 1,114,394 lines written in 4,302 code files; cal.diy has 554,251 in 4,310.

Which has more GitHub stars, cal.diy or Stirling-PDF?

Stirling-PDF, with 95,274 stars; cal.diy has 49,471.

Stirling-PDF, with 2,014 test files; cal.diy has 641.

Stirling-PDF: its last push was on October 29, 2026, and cal.diy's on October 27, 2026.

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in Stirling-PDF, 2.1%.

Compare

cal.diy and Stirling-PDF share 4 technologies: React, Postgres, PostHog, and Stripe. Both are written in TypeScript.

calcom

Scheduling infrastructure for absolutely everyone.

Stirling-Tools

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

cal.diyStirling-PDF

SizeLines written by people and agents, without generated ones; code files, without tests.

cal.diy554,251 lines written4,310 code files

Stirling-PDF1,114,394 lines written4,302 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

Stirling-PDF2.1% of its commits signed by AIWith GitHub Copilot, Claude Code, and Codex

ActivityFrom GitHub and its history, on the day SeeRepo read it.

cal.diyLast push October 27, 202616,059 commits49,471 stars

Stirling-PDFLast push October 29, 20265,694 commits95,274 stars

TestsThe files that test the code, and the share of code files a test imports.

cal.diy641 test files14.7% of its code files have a test that imports them

Stirling-PDF2,014 test files48.3% of its code files have a test that imports them

Which is bigger, cal.diy or Stirling-PDF?: Stirling-PDF, with 1,114,394 lines written in 4,302 code files; cal.diy has 554,251 in 4,310.; The proof: Stirling-Tools/Stirling-PDF's code at commit 96ee014
Which has more GitHub stars, cal.diy or Stirling-PDF?: Stirling-PDF, with 95,274 stars; cal.diy has 49,471.; The proof: Stirling-Tools/Stirling-PDF on GitHub
Which has more tests, cal.diy or Stirling-PDF?: Stirling-PDF, with 2,014 test files; cal.diy has 641.; The proof: Stirling-Tools/Stirling-PDF's code at commit 96ee014
Which was updated more recently, cal.diy or Stirling-PDF?: Stirling-PDF: its last push was on October 29, 2026, and cal.diy's on October 27, 2026.; The proof: Stirling-Tools/Stirling-PDF's commits on GitHub
Which has more commits signed by AI, cal.diy or Stirling-PDF?: cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in Stirling-PDF, 2.1%.; The proof: the commits each tool signed in calcom/cal.diy

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