Other Servers
Beyond the major platforms, many other ActivityPub servers exist for various use cases.
Microblogging
Akkoma
Fork of Pleroma with additional features.
| Property | Value |
|---|---|
| Language | Elixir |
| License | AGPL-3.0 |
| Repository | akkoma.dev/AkkomaGang/akkoma |
Features:
- Emoji reactions
- Quote posts
- Markdown/BBCode
- MRF (Message Rewrite Facility)
Rebased (Soapbox)
Pleroma fork with Soapbox frontend and enhanced features.
| Property | Value |
|---|---|
| Language | Elixir |
| License | AGPL-3.0 |
| Website | soapbox.pub |
| Repository | gitlab.com/soapbox-pub/rebased |
Features:
- Modern React frontend (Soapbox FE)
- Quote posts and reactions
- Improved moderation tools
- Nostr integration via Mostr
Ditto
Nostr-native server with ActivityPub support.
| Property | Value |
|---|---|
| Language | TypeScript (Deno) |
| License | AGPL-3.0 |
| Repository | gitlab.com/soapbox-pub/ditto |
Features:
- Nostr as primary protocol
- ActivityPub federation bridge
- Soapbox FE compatible
- Lightweight, single binary
Honk
Minimalist ActivityPub server.
| Property | Value |
|---|---|
| Language | Go |
| License | ISC |
| Repository | humungus.tedunangst.com/r/honk |
Features:
- Single user focus
- Minimal dependencies
- SQLite database
- Simple deployment
Takahē
Multi-domain ActivityPub server.
| Property | Value |
|---|---|
| Language | Python (Django) |
| License | BSD-3 |
| Repository | github.com/jointakahe/takahe |
Features:
- Multiple domains on one instance
- Identity-based federation
- PostgreSQL database
Blogging
WriteFreely
Federated blogging platform.
| Property | Value |
|---|---|
| Language | Go |
| License | AGPL-3.0 |
| Repository | github.com/writefreely/writefreely |
Federation:
- Articles appear as Notes
- Followers can follow blogs
- Comments via replies
Plume
Federated blogging engine.
| Property | Value |
|---|---|
| Language | Rust |
| License | AGPL-3.0 |
| Repository | github.com/Plume-org/Plume |
Books & Media
BookWyrm
Federated book tracking (Goodreads alternative).
| Property | Value |
|---|---|
| Language | Python (Django) |
| License | Anti-Capitalist License |
| Repository | github.com/bookwyrm-social/bookwyrm |
Federation:
- Book reviews federate as Articles
- Reading status updates
- Shelves as Collections
Funkwhale
Federated music streaming.
| Property | Value |
|---|---|
| Language | Python (Django) |
| License | AGPL-3.0 |
| Repository | dev.funkwhale.audio |
Federation:
- Audio objects
- Libraries and channels
- Follows and shares
Owncast
Federated live streaming.
| Property | Value |
|---|---|
| Language | Go |
| License | MIT |
| Repository | github.com/owncast/owncast |
Federation:
- Stream notifications
- Follows
- Chat integration
Events
Mobilizon
Federated event organizing.
| Property | Value |
|---|---|
| Language | Elixir |
| License | AGPL-3.0 |
| Repository | framagit.org/framasoft/mobilizon |
Federation:
- Event objects
- Group organizing
- RSVP activities
Social Networks
Friendica
Full-featured social network.
| Property | Value |
|---|---|
| Language | PHP |
| License | AGPL-3.0 |
| Repository | github.com/friendica/friendica |
Features:
- Multiple protocol support
- Facebook-like interface
- Events, polls, calendar
Hubzilla
Decentralized publishing platform.
| Property | Value |
|---|---|
| Language | PHP |
| License | MIT |
| Repository | framagit.org/hubzilla/core |
Features:
- Nomadic identity
- Zot protocol + ActivityPub
- Channels and permissions
Relays
Activity Relay
Boost federation between instances.
| Property | Value |
|---|---|
| Language | Python |
| Repository | git.pleroma.social/pleroma/relay |
Purpose:
- Connect smaller instances
- Share public content
- Increase discoverability
Aode Relay
Modern relay implementation.
| Property | Value |
|---|---|
| Language | Rust |
| Repository | git.asonix.dog/asonix/relay |
Comparison
| Server | Focus | Language | Resources |
|---|---|---|---|
| Akkoma | Microblog | Elixir | Medium |
| Rebased | Microblog | Elixir | Medium |
| Ditto | Nostr+AP | TypeScript | Low |
| Honk | Minimal | Go | Very Low |
| WriteFreely | Blogging | Go | Low |
| BookWyrm | Books | Python | Medium |
| Funkwhale | Music | Python | Medium |
| Mobilizon | Events | Elixir | Medium |