Absentra – Leave management app integrated with Slack

Summary: Absentra is a lightweight, open-source Slack app for managing leave requests, approvals, balances, and team availability. It runs in a single Docker container, allowing self-hosting on affordable infrastructure while keeping data on your servers.

What it does

It enables users to request time off, receive approvals, track leave balances, and view who is out directly within Slack. The app supports customizable leave types, approval flows, and policies.

Who it's for

Teams seeking a simple, flexible, and self-hosted leave management solution integrated with Slack.

Why it matters

It provides control over leave management workflows and data privacy by running on your own infrastructure.