Moderate Matrix communities with Mjolnir, a bot that can handle malicious invites, spam, and other server issues.
Open source
24 alternativesDatabag
Run Databag, a lightweight federated messenger designed for self-hosting on a personal server.
About Databag
Databag is a self-hosted, federated messenger. Users run their own server node, and accounts on different nodes can communicate. Messages are organized by topic, and sealed topics use end-to-end encryption that the hosting admin cannot view.
It supports audio and video calls, though NAT traversal requires a separate relay server. Running a node requires a DNS name pointing to the node with a certificate, with container images for arm64 and amd64. Apps are listed for F-Droid and the Google and Apple stores.
Key features
- Federated messaging between accounts on different nodes
- Sealed topics with end-to-end encryption
- Audio and video calls requiring separate relay for NAT traversal
- Topic-based threads with no stated participant limit
- Multi-factor authentication using TOTP apps
- Push alerts via UnifiedPush, FCM, and APN
Best for: People who want to host their own messaging server for themselves or their family.
Good for
- Server can run on low-resource hardware such as Raspberry Pi Zero v1.3
- Supports federation, so accounts on separate nodes can communicate
- Allows multiple accounts per node with no stated account limit
Watch out for
- Running a node requires a DNS name and certificate
- Audio and video calls need a separate relay server for NAT traversal
Databag at a glance
- Website
- github.com/balzack/databag
- Category
- Privacy & Security › Encrypted Messaging
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Databag FAQ
What do I need to run a Databag node?
A DNS name pointing to the node with a certificate. Containers for arm64 and amd64 are available.
Does Databag support audio and video calls?
Yes, but NAT traversal requires a separate relay server.
Where can I get the Databag app?
The app is available on F-Droid and in the Google and Apple stores.
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