Your organization. Your members. Your data.
Admidio is free, self-hosted open-source membership management software for clubs, associations, groups, and organizations.
You host Admidio on your own web server and retain control over your data. Members, roles, events, communication, and much more are managed centrally through a modern web interface that adapts flexibly to the structure of your organization.
- Open source.
- Self-hosted.
- No license fees.
Project news
Announcements
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Admidio 5.0.15 released
This release contains several bug fixes, improvements and security-related changes since Admidio »(12.09.2026) -
Why have recent Admidio releases included security fixes?
Over the past six months, several Admidio releases have included fixes for security-related issues. We understand »(23.08.2026) -
Admidio 5.0.14 released
This release focuses on improving the overall stability and reliability of Admidio. It includes several bug fixes »(02.08.2026) -
Admidio 5.0.11 released
Subscribe to events and performance improvements within the inventory module. Also fixes several bugs and some »(05.07.2026) - All entries
Key features at a glance
Manage members easily
Manage members, contacts, and custom profile data clearly in one central place.
Organize groups & roles
Model the structure of your organization flexibly with groups, roles, and memberships.
Assign permissions precisely
Define in detail who can view, edit or manage specific data.
Plan events
Create events and manage schedules, registrations, participants, and rooms.
Create member lists
Create custom lists and export the data you need in various formats.
Communicate easily
Send messages and emails directly to individual contacts, groups or roles.
Share documents
Share files and documents from one central place and control who can access them.
Offer online registration
Allow new members to register themselves and manage their registrations directly in Admidio.
