Overview

Cal.com — Scheduling infrastructure for everyone

Cal.com is an open-source scheduling infrastructure that lets individuals and teams build booking systems. It offers a free self-hosted option, availability management, round-robin team booking, payment collection, and integrations with all major video conferencing tools. Cal AI can reschedule meetings via natural language.

Open-source self-hosting

Team scheduling

Payment collection

AI scheduling assistant

Features & capabilities

Everything it does, in plain English.

FeatureOpen-source self-hostingIncluded

FeatureTeam schedulingIncluded

FeaturePayment collectionIncluded

FeatureAI scheduling assistantIncluded

FeatureWhite-labelingIncluded

API AccessProgrammatic access available for developers.Available

PlatformsWeb · API

The honest take

Where it shines, where it stumbles.

✓ Pros

✓Open-source and self-hostable
✓Good free tier
✓Excellent API

! Watch-outs

!Less polished than Calendly
!Self-hosting requires technical setup

Who it's for

Where Cal.com pays for itself fast.

— Use case

Client booking

— Use case

Team coordination

— Use case

Sales demos

— Use case

Coaching sessions

Community reviews

Share your take on Cal.com

4.1

★★★★★

3 reviews

5★

4★

3★

2★

1★

Tyler K. ✓ Verified

Tech Lead · Palantir

★★★★★

4 months ago

Really good — a few things to improve

Mostly great, minor complaints. Works consistently across all my devices and browsers. The onboarding flow was smooth and I was productive from day one. The ROI was clear within the first week of using it. I'd love to see better export options. Looking forward to seeing how it improves.

Rachel M.

ML Engineer · Series A startup

★★★★★

6 months ago

Okay product, not amazing

Decent tool, not without issues. The customization options let me tailor it to my exact workflow. I've recommended this to at least 10 colleagues already.

Yuki P. ✓ Verified

AI Researcher · Microsoft

★★★★★

7 months ago

Good for some things, not others

Good for some things, lacking in others. The interface is intuitive enough that I didn't need to read any docs. The AI suggestions are incredibly accurate and save me hours every week. The mobile experience could use some work.

Heather L. ✓ Verified

VP of Engineering · GitLab

★★★★★

8 months ago

Great tool, minor quibbles

Really solid tool overall. Performance is fast — no noticeable latency even on large inputs. Pricing is fair for the value you get. Wish the free tier had slightly higher limits.

David S. ✓ Verified

Researcher · Y Combinator startup

★★★★★

10 months ago

Blew away all expectations

Best-in-class, period. The AI suggestions are incredibly accurate and save me hours every week. The free tier is genuinely generous compared to competitors. Keep up the great work, team.

Carlos A. ✓ Verified

Product Manager · Palantir

★★★★★

11 months ago

Impressed with the results

Genuinely useful — glad I tried it. It handles edge cases better than anything else I've tried. The recent updates have addressed most of my initial concerns. The AI doesn't just suggest — it learns from my preferences over time. Definitely worth trying.

Victoria H. ✓ Verified

Co-founder · HubSpot

★★★★★

1 years ago

Mixed experience overall

Mixed feelings, but ultimately positive. I've recommended this to at least 10 colleagues already. Wish the free tier had slightly higher limits.

Wei P. ✓ Verified

Backend Engineer · an e-commerce company

★★★★★

1 years ago

The best AI tool I've used

Exceeded all my expectations. The AI suggestions are incredibly accurate and save me hours every week. Keep up the great work, team.

Alternatives

Similar tools worth comparing.

n8n

AI AgentAI Agent

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

GitHubGitHub TrendingCLI

★4.8(14)♥ 58014

Open source; commercial offering needs verification

GitHub Copilot

AI Coding AssistantAI Coding Assistant

AI pair programmer by GitHub and OpenAI

PaidVS CodeOpenAI

★4.6(15)♥ 100531

$10/mo

Ollama

Developer ToolsDeveloper Tools

Run large language models locally

FreeLocal LLMOpen Source

★4.3(7)♥ 19923

Free

Roo Code

AI IDEAI IDE

Roo Code gives you a whole dev team of AI agents in your code editor.

Open SourceGitHubGitHub Trending

★4.3(7)♥ 13238

Open source; commercial offering needs verification

Context7

MCP ServerMCP Server

Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

Open SourceGitHubGitHub Trending

★4.3(6)♥ 11518

Open source; commercial offering needs verification

SWE Agent

AI Coding AssistantAI Coding Assistant

SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]

GitHubGitHub TrendingAgent

★4.2(4)♥ 13197

Open source; commercial offering needs verification