Bridgy Fed vs Mastodon
A side-by-side comparison of two self-hosted social networks options — licensing, setup difficulty, resource needs, and what each one replaces.
Mastodon
Decentralized open-source microblogging server
| Feature | Bridgy Fed | Mastodon |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 79 · Good | 100 · Excellent |
| Category | Social Networks | Social Networks |
| License | Unlicense | AGPL-3.0 |
| Language | Python | Ruby |
| Setup difficulty | Hard | Hard |
| Min. RAM | 512 MB | 2,048 MB |
| Deployment | source | docker, bare-metal, source |
| GitHub stars | ★ 1,238 | ★ 50,319 |
| First released | 2017 | 2016 |
| Replaces | Twitter, X |
What are Bridgy Fed and Mastodon?
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
Mastodon
Mastodon is a free, open-source decentralized social network and microblogging server. It is part of the fediverse, federating with other ActivityPub servers so users can follow accounts across instances.
- ActivityPub federation
- Chronological timelines
- Content warnings and moderation tools
- Rich third-party app ecosystem
Bridgy Fed vs Mastodon: key differences
Bridgy Fed is written in Python, while Mastodon is built with Ruby. Licensing differs — Unlicense for Bridgy Fed versus AGPL-3.0 for Mastodon. Bridgy Fed is the lighter option, starting around 512 MB of RAM against 2,048 MB for Mastodon. Mastodon has the considerably larger community, at 50,319 GitHub stars versus 1,238. Mastodon lists first-class Docker deployment; Bridgy Fed does not.
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 Mastodon if…
- Large fediverse network
- Strong moderation features
Watch out for
- Resource-heavy to host
- Operationally complex
Frequently asked questions
Is Bridgy Fed or Mastodon better?
Neither is universally better. Mastodon has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Bridgy Fed and Mastodon free and open-source?
Yes. Bridgy Fed is licensed under Unlicense and Mastodon under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Bridgy Fed and Mastodon with Docker?
Bridgy Fed: check the project docs for container support. Mastodon: yes.
Which is lighter on resources, Bridgy Fed or Mastodon?
Bridgy Fed has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Mastodon. Real-world usage depends on library size, user count, and enabled features.