Mementomori rySustainable, open source social media.
Mementomori ry is a registered non-profit in Finland. It runs and funds the mementomori.social social media platform, keeping it independent and member-supported.
ID 3637371-4, Jyväskylä, Finland, registered 6 July 2026
Membership
Membership funds the platform and gives you a say in how the association is run. Using mementomori.social stays free for everyone, member or not.
Member
The basic membership option, meant for people who want to support what we do.
or 60 € / year
- Right to vote at the association meeting
- Access to the members' channel on Matrix
- Member badge on mementomori.social
- A nice feeling you are supporting a good cause
Patron
The supporting membership for individuals, companies and organisations with a bigger contribution.
or 600 € / year
- Right to attend and speak at the association meeting
- Access to the members' channel on Matrix
- Member badge on mementomori.social
Fees are fixed and set by the association meeting. The monthly option is an instalment of the annual fee. Joining fee is 0 €, and membership is approved by the board.
Apply for membership I'm interested in sponsoring
Members and costs
Running the mementomori.social infrastructure, websites and social media service costs 204.15 € a month, about 2450 € a year.
Elsewhere
mementomori.social social media platform
help.mementomori.social documentation
github.com/mementomori-social open source
status.mementomori.social service status
Contact @ry@mementomori.social