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cal.diy vs signoz

cal.diy and signoz share 6 technologies: React, Postgres, Redis, Sentry, PostHog, and Google. cal.diy is written in TypeScript and signoz in Go.

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What they share and what sets them apart

calcom

cal.diy

Scheduling infrastructure for absolutely everyone.

TypeScript49.6kRead on October 30, 2026, at commit 2e41247 What is cal.diy built with?

SigNoz

SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

Go32.5kRead on November 1, 2026, at commit a621fb2 What is signoz built with?

In common

Only in cal.diy

Only in signoz

Side by side

cal.diysignoz

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

cal.diy554,284 lines written4,310 code files

signoz1,090,543 lines written4,718 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

signoz1.2% of its commits signed by AIWith Claude Code, GitHub Copilot, and Cursor

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

cal.diyLast push October 29, 202616,062 commits49,552 stars

signozLast push November 1, 20266,568 commits32,495 stars

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

cal.diy642 test files14.8% of its code files have a test that imports them

signoz1,865 test files36.4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, cal.diy or signoz?

signoz, with 1,090,543 lines written in 4,718 code files; cal.diy has 554,284 in 4,310.

The proof: SigNoz/signoz's code at commit a621fb2

Which has more GitHub stars, cal.diy or signoz?

cal.diy, with 49,552 stars; signoz has 32,495.

The proof: calcom/cal.diy on GitHub

Which has more tests, cal.diy or signoz?

signoz, with 1,865 test files; cal.diy has 642.

The proof: SigNoz/signoz's code at commit a621fb2

Which was updated more recently, cal.diy or signoz?

signoz: its last push was on November 1, 2026, and cal.diy's on October 29, 2026.

The proof: SigNoz/signoz's commits on GitHub

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

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in signoz, 1.2%.

The proof: the commits each tool signed in calcom/cal.diy

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