Side-by-side open source comparison

Cal.comOpen Source

Open source scheduling infrastructure — the Calendly alternative for individuals and teams

PlaneOpen Source

Open source project management for teams

Overview

Cal.comPlane

TypeOpen SourceOpen Source

CategoryProject ManagementProject Management

PricingFree (self-hosted)Free (self-hosted)

Self-Hostable

LicenseAGPL-3.0AGPL-3.0

GitHub Metrics

Cal.comPlane

Stars41.5k48.1k

Forks12.9k4k

Contributors438147

Open Issues1.3k727

Last CommitApr 2026Apr 2026

Latest Release----

Cal.comPlane

Health Score

93Excellent

88Excellent

Step-by-step: infrastructure setup, data migration, backups, and security for 15+ common SaaS replacements. Used by 300+ developers.

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