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Open-source projects tagged “Calendar”.

Inspect repositories, licenses, activity, and alternatives across the Calendar ecosystem.

1 projects connectedTag matches come from repository topics and catalog metadata.
Twake Chat
AGPL-3.0

A multi-platform (Flutter) application for connecting to Matrix - an open network for secure, decentralized communication, with your favorite devices.

ProductivityOpen-source projects grouped in this category for discovery and comparison.1 project#DartProjects tagged with this topic in the verified catalog.1 projectGithub ActionsProjects tagged with this topic in the verified catalog.1 projectJavaScriptProjects tagged with this topic in the verified catalog.1 projectSlackProprietary team messaging and collaboration platform.1 alternative
Metrics syncingMetrics syncingStar momentum for this project has not landed in the latest GitHub metrics sync yet. Check trending for repositories with recorded momentum.Browse trending →
FreePricingFree and open sourceFree16145Jul 15, 2026
Alternatives toSlackSlackProprietary team messaging and collaboration platform.1 alternative+3
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