Cal.com

Active

Country: United States (US)
Founded: 2020
Developer: Cal.com, Inc.
Pricing: Freemium
Open source: Yes
Platforms: Web, iOS, Android, macOS, Windows, Linux, Chrome, Firefox, Edge, Safari

Indexes

Calendar

Overview

Cal.com is a scheduling software that enables users to create personalized booking links, sync with calendars like Google Calendar, Outlook, and iCloud, and manage appointments with automatic time zone adjustments to prevent conflicts. It supports individuals, teams, and developers building custom scheduling platforms, with availability across web, mobile, desktop, and browser extensions.

Key Features

Personalized booking links - Users share links for others to book meetings based on real-time availability.
Calendar synchronization - Integrates with Google Calendar, Outlook, iCloud, and others to read and update availability.
Time zone adjustment - Automatically handles time zones to avoid scheduling conflicts.
Customizable schedules - Set specific availability times and manage event details like duration and notes.
Team collaboration - Supports team plans for shared scheduling and collaborative features.
Mobile and desktop access - Manage schedules via companion apps on iOS, Android, macOS, Windows, and Linux.
Browser extensions - Extensions for Chrome, Firefox, Edge, and Safari provide quick access.
API access - Developers can build custom integrations using the API.

Pricing

Plan	Price	Includes
Individual	Free	Basic scheduling, calendar sync, booking links for single users.
Team	Paid (details on site)	Collaborative features, team scheduling, advanced management.

Platforms & Requirements

Cal.com runs as a web app in any modern browser, with companion apps on iOS and Android via app stores, desktop apps for macOS, Windows, and Linux, and browser extensions for Chrome, Firefox, Edge, and Safari. It requires a Cal.com account for full functionality across platforms. No specific minimum requirements are detailed beyond standard device capabilities.

Integrations & Ecosystem

Google Calendar
Outlook
iCloud
Microsoft Exchange
API (v2 with OAuth)
Chrome Web Store
Firefox Extension Store
Apple App Store

Alternatives

App	Difference
Calendly	Proprietary service focused on simple embedding without open-source customization.
SavvyCal	Emphasizes overlays and time intelligence, less focus on self-hosting.
YouCanBook.me	Targets small businesses with payment integrations, not fully open-source.
ScheduleOnce	Part of OnceHub, offers advanced routing but lacks desktop apps.

Reputation

Cal.com is recognized as an open-source alternative to Calendly, praised for its customizability and self-hosting options among developers and teams. Users appreciate seamless calendar sync and multi-platform support. Some note limitations in free tier features compared to paid competitors.

Sources (10)