open-source

Open-source to-do app and task manager.

Minimalistic Kanban board. Open source.

Open-source Doodle alternative for scheduling meetings.

Open-source helpdesk. Self-hosted customer support.

Open-source web-based ticketing system.

Decentralized social platform on the fediverse. Open source.

Open-source social media scheduling tool.

Self-hosted social media management.

Federated blogging engine with ActivityPub.

Self-hosted Bitcoin payment processor.

Open-source subscription billing platform.

Open-source payments switch for multiple processors.