Bridgy Fed vs Ktistec
A side-by-side comparison of two self-hosted social networks options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Bridgy Fed | Ktistec |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 79 · Good | 79 · Good |
| Category | Social Networks | Social Networks |
| License | Unlicense | AGPL-3.0 |
| Language | Python | Crystal |
| Setup difficulty | Hard | Medium |
| Min. RAM | 512 MB | 256 MB |
| Deployment | source | binary, source |
| GitHub stars | ★ 1,238 | ★ 436 |
| First released | 2017 | 2020 |
| Replaces | Twitter, Mastodon |
What are Bridgy Fed and Ktistec?
Bridgy Fed
Bridgy Fed connects personal websites that use IndieWeb standards to the fediverse and the rest of the social web. It translates webmentions and ActivityPub so different networks can interact.
- Connects IndieWeb to fediverse
- Webmention translation
- ActivityPub bridging
- Cross-network interaction
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
Bridgy Fed vs Ktistec: key differences
Bridgy Fed is written in Python, while Ktistec is built with Crystal. Licensing differs — Unlicense for Bridgy Fed versus AGPL-3.0 for Ktistec. Ktistec is the lighter option, starting around 256 MB of RAM against 512 MB for Bridgy Fed. Bridgy Fed is the more established project (first released 2017), while Ktistec arrived in 2020. Bridgy Fed has the considerably larger community, at 1,238 GitHub stars versus 436.
Why pick each one
Choose Bridgy Fed if…
- Released under the Unlicense license
- Active community (1.2k GitHub stars)
- Written in Python
- Lightweight — runs in 512 MB RAM
Choose Ktistec if…
- Released under the AGPL-3.0 license
- Written in Crystal
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is Bridgy Fed or Ktistec better?
Neither is universally better. Bridgy Fed has the larger community, while Ktistec is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Bridgy Fed and Ktistec free and open-source?
Yes. Bridgy Fed is licensed under Unlicense and Ktistec under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Bridgy Fed and Ktistec with Docker?
Bridgy Fed: check the project docs for container support. Ktistec: check the project docs for container support.
Which is lighter on resources, Bridgy Fed or Ktistec?
Ktistec has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Bridgy Fed. Real-world usage depends on library size, user count, and enabled features.