Michael Stanclift on Nostr: How many Mastodon instances are there? How many active users are there? Depends on ...

How many Mastodon instances are there? How many active users are there? Depends on where you look and how you count.

Quick sanity check across datasources...

vmcrawl
Instances: 9,226
MAU: 787,574

joinmastodon.org
Instances: 7,952
MAU: 780,355

FediDB
Instances: 9,193
MAU: 1,037,321

(Based on 20 Feb 2026 API data for all sources)

The world, may never know.