What is Fosstodon?
Fosstodon is an invite-only Mastodon instance. Connect with others interested in technology, particularly free and open-source software.
Fosstodon ranks #19,603 and PyData ranks #15,263 on the Tranco list of the most visited sites worldwide as of November 12, 2026, so PyData gets more traffic than Fosstodon. Over the last 30 days Fosstodon climbed 2,357 places (from #21,960) and PyData climbed 420 places (from #15,683).
worldwide today
| Worldwide traffic rank | #19,603 | #15,263more traffic |
|---|---|---|
| 30-day change | 12% | 3% |
Fosstodon is an invite-only Mastodon instance. Connect with others interested in technology, particularly free and open-source software.
PyData is a community and educational program for developers and users of open-source data tools, particularly those involving Python. It serves as a gathering point for individuals interested in data science, providing a collaborative environment for learning and sharing knowledge. The community supports the growth and use of open-source technologies in data-related fields. Community members can participate in various events, including meetups and conferences, to connect with peers and learn about new developments. PyData also offers resources such as a video library and a community Discord for ongoing discussions. Individuals can find or start local meetups, volunteer, and contribute to the open-source data ecosystem.
Fosstodon ranks #19,603 and PyData ranks #15,263 on the Tranco list of the most visited sites worldwide as of November 12, 2026, so PyData gets more traffic than Fosstodon.
Over the last 30 days Fosstodon climbed 2,357 places (from #21,960) and PyData climbed 420 places (from #15,683).
Both are free to use.
| Category rank | #46 of 48 in Communities | #40 of 48 in Communities |
|---|
| Pricing | Free | Free |
|---|
| Upvotes on Zivvi | 0 | 0 |
|---|
| Website | fosstodon.org | pydata.org |
|---|
Both are Communities apps on Zivvi, where Fosstodon is #46 by traffic and PyData is #40, out of 48 ranked. Both are free to use.
Compare any two apps
Similar apps on Zivvi include Mastodon, Discord, Reddit, Fur Affinity, and DEV Community.