Ktistec vs Pleroma
A side-by-side comparison of two self-hosted social networks options — licensing, setup difficulty, resource needs, and what each one replaces.
Pleroma
Lightweight fediverse microblogging server
| Feature | Ktistec | Pleroma |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Category | Social Networks | Social Networks |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | Crystal | Elixir |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 512 MB |
| Deployment | binary, source | docker, bare-metal, source |
| GitHub stars | ★ 436 | ★ 2,200 |
| First released | 2020 | 2017 |
| Replaces | Twitter, Mastodon | Twitter, Tumblr |
What are Ktistec and Pleroma?
Ktistec
Ktistec is a single-user ActivityPub server written in Crystal, designed to be easy to deploy and maintain. It provides a personal fediverse presence with a simple, self-contained runtime.
- Single-user design
- Self-contained runtime
- SQLite storage
- ActivityPub federation
Pleroma
Pleroma is a lightweight, free, open-source social networking server compatible with the fediverse. It implements ActivityPub and the Mastodon API while using fewer resources than Mastodon.
- ActivityPub federation
- Mastodon API compatible
- Low resource footprint
- Multiple frontends supported
Ktistec vs Pleroma: key differences
Ktistec is written in Crystal, while Pleroma is built with Elixir. Ktistec is the lighter option, starting around 256 MB of RAM against 512 MB for Pleroma. Pleroma is the more established project (first released 2017), while Ktistec arrived in 2020. Pleroma has the considerably larger community, at 2,200 GitHub stars versus 436. Pleroma lists first-class Docker deployment; Ktistec does not.
Why pick each one
Choose Ktistec if…
- Released under the AGPL-3.0 license
- Written in Crystal
- Tiny footprint — runs in 256 MB RAM
Choose Pleroma if…
- Runs on small servers
- Compatible with Mastodon apps
Watch out for
- Smaller community
- Less polished admin tools
Frequently asked questions
Is Ktistec or Pleroma better?
Neither is universally better. Pleroma has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Ktistec and Pleroma free and open-source?
Yes. Ktistec is licensed under AGPL-3.0 and Pleroma under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Ktistec and Pleroma with Docker?
Ktistec: check the project docs for container support. Pleroma: yes.
Which is lighter on resources, Ktistec or Pleroma?
Ktistec has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Pleroma. Real-world usage depends on library size, user count, and enabled features.