Open source · AGPLv3 · self-hosted
A spreadsheet of members, a calendar nobody shares, a folder of PDFs, and one person who knows where everything is. TribeManager is one self-hostable place for all of it — contacts, events, tasks, inventory, money, documents — built so the data stays yours and stays readable long after anyone stops using the software.
Not an export button bolted on at the end — these are the formats the records are stored as.
What it does
Every module is built and works end to end, including logins, permissions and multi-tenant storage.
People, organizations and locations in one record — stored as vCard, not exported as one afterwards.
iCalendar is the model, so invitations land in the recipient’s own mail programme instead of a link back to a website.
The work around an event, tracked where the event is — not in a second tool nobody opens.
What the organization owns, where it is kept, and who has it right now — worked out from the dates, not from a flag someone must remember to set.
A cash book that cannot quietly turn a transfer into income, and a year-end statement that follows from the entries.
The recurring paperwork, run end to end and safe to repeat.
Re-upload as often as you like without ever losing what the earlier version said.
Composing and sending are two separate acts, and the recipient decides how much they hear from you.
The obligations that arrive by letter, answerable without a database session.
Grows with you
Pick basic, advanced or expert per module. A mode never changes what is stored, only how much of it the screen shows. A vendor selling tiers cannot say that truthfully: their tiers are different products with different storage underneath.
A name field, a dated event, a task, an item with a quantity, a cash book. What a twelve-person choir needs and nothing else on screen.
Standard contact fields, households, roles with waitlists, subtasks, reservations, planned postings, document versions.
The full field surface, custom vocabularies, recurrence, kit templates, a custom chart of accounts, field-level visibility.
Nothing gets trapped
Contacts are vCard. Events are iCalendar. Not as an export afterthought, but as the model itself — so what comes out is what was stored, and other software can read it without a bespoke importer.
One-click export at basic level, column selection and detail levels at advanced, property-level mapping at expert.
Append-only storage
Every change is a new revision and nothing is overwritten, so “who changed this, and when” is always answerable. Deleting a person anonymizes the record instead of tearing the books apart — the fee they paid in 2021 still adds up.
The same principle handles bad data gracefully: a birthday that is not a date or a missing required field is saved anyway and flagged for whoever can fix it. The software does not get to decide that your reality is invalid.
Why this one
No cloud account, no per-seat pricing, no vendor who can change the terms. It runs on a machine you control and talks to no third-party service you did not configure yourself.
Incomplete or odd data is saved and flagged, not rejected. The person entering it is rarely the person who can fix it, and a blocked form just moves the record back into a spreadsheet.
WCAG 2.2 level AA, fully keyboard-reachable, light and dark, in German and English out of the box. Further languages by contribution.
AGPLv3, built on community-governed technologies — Java 21 and Quarkus, PostgreSQL, Vue 3 and TypeScript, packaged as OCI containers. Every choice is written down with its reasoning.
Try it
Database, backend and frontend, with live reload in the frontend. Frontend on localhost:5173, API on localhost:8080.
$ git clone https://gitlab.com/tribemanager/tribemanager.git
$ cd tribemanager
$ podman compose -f compose.dev.yaml upEvery module is built, with logins, permissions and multi-tenant storage in place. There is no versioned release and no upgrade path between versions yet — so run it for real only if you are willing to move with a moving target.
You run TribeManager on infrastructure you control and point it at your own SMTP relay. That is the whole point: the record of your organization stays where your organization can reach it.