43 Mastodon Statistics for 2026

As of April 2026, Mastodon holds over 10.5 million registered accounts across more than 10,000 independent servers. Monthly active users sit between 750,000 and 1 million, a fraction of its November 2022 peak of 2.6 million, yet the platform continues to attract privacy-conscious users and communities fleeing centralized social networks.

For marketers tracking where niche, engaged audiences spend their time, the Mastodon data tells a specific story: smaller numbers, intentional engagement, and a user base that is younger and more technical than most platforms.

Here are 43 Mastodon statistics to help you understand where the platform stands in 2026.

Key Takeaways

• Mastodon has over 10.5 million registered accounts as of April 2026, but monthly active users are under 1 million.
• Monthly active users peaked at 2.6 million in November 2022 following Elon Musk's Twitter acquisition, then declined sharply.
• The 25–34 age group accounts for the largest share of Mastodon users, making it one of the platform's most dominant demographics.
• Mastodon generated €2.2 million in total revenue in 2024 and grew its team from three to six full-time employees.
• Only 1.6% of Twitter users who said they would leave for Mastodon in 2022 actually followed through, per a New Scientist analysis.

User Scale & Registered Accounts Statistics

Mastodon's registered account count tells a story of growth through disruption. Each spike in registrations has followed a controversy at a competing platform, and the network's decentralized design means accounts persist long after users go inactive.

1. As of April 17, 2026, Mastodon's network holds 10,497,182 registered accounts across all active instances, according to data pulled from the official Mastodon statistics API.

2. Mastodon crossed the 10 million registered account milestone on March 19, 2023, driven largely by the mass migration of users from Twitter following Elon Musk's acquisition.

3. The broader fediverse, which includes Mastodon alongside platforms like Pixelfed and PeerTube, has surpassed 11 million total accounts, though active users across all fediverse platforms remain at roughly 1–2 million combined.

4. Mastodon receives zero percent of its website traffic from paid advertising. Every visitor arrives organically, which reflects the platform's non-commercial, open-source model and the community-driven ethos that distinguishes it from X or Meta-owned platforms.

5. The platform is available in 93 languages, making it one of the more internationally accessible decentralized social networks in operation.

Monthly Active Users Statistics

Monthly active users are the most telling number for any social platform. Mastodon's MAU trajectory is among the most dramatic in recent social media history: a near-vertical spike in late 2022, followed by a sustained decline to a smaller but more stable core audience.

6. As of February 2026, Mastodon sees somewhere between 750,000 and 1 million monthly active users, depending on the tracking source. Mastodon's own site reported approximately 785,000 at the time.

7. Monthly active users peaked at 2.6 million in November 2022, immediately following the completion of Elon Musk's Twitter acquisition. That peak has not been approached since.

8. By October 2025, Mastodon's monthly active user count had fallen to fewer than 690,000, according to PLOS research tracking platform migration behavior across the fediverse.

9. In December 2022, Mastodon reached 2 million monthly active users for the first time. By January 2023, that number had dropped 30% to 1.8 million as the Twitter migration wave subsided.

10. In July 2023, founder Eugen Rochko reported that MAU had recovered to above 2 million again, suggesting a second cohort of users began engaging more actively over the spring and summer months.

11. As of summer 2025, reputable reporting described Mastodon as having under 1 million monthly active users. That is a significant drop from the 2022–2023 peaks, but consistent with the platform's "scalloped growth" pattern: each migration wave settles at a higher baseline than the previous one.

Content & Platform Activity Statistics

Mastodon's content volume reveals a highly active posting community relative to its user count. With over a billion posts published since its 2016 launch and millions added monthly, the platform sustains strong engagement within its niche communities.

12. As of April 17, 2026, Mastodon's network has published over 1.18 billion statuses (posts) in total, reflecting nearly a decade of continuous user activity across thousands of independent servers.

13. On average, Mastodon users generate over 10 million posts per month, according to aggregated network data from mastodon-analytics.com. That output from a sub-million active user base points to a posting frequency that rivals much larger platforms on a per-user basis.

14. As of April 2026, there are 10,475 active Mastodon instances (independent servers), each operating under its own moderation rules, content policies, and community focus.

15. Mastodon allows posts of up to 500 characters, nearly double X's 280-character limit, giving users more room to provide context without the need for threads or reply chains.

16. Mastodon's largest general server, mastodon.social, hosts over 348,000 accounts and has seen more than 15 million statuses published. Quote posts were introduced in Mastodon 4.5 (November 2025), designed with consent controls so users can choose whether their posts can be quoted.

Mastodon Demographics: Age Statistics

Mastodon skews toward younger adults and tech-savvy professionals, a profile that makes the platform particularly relevant for brands targeting software developers, digital marketers, journalists, and researchers.

17. Adults aged 25–34 are the largest demographic group on Mastodon, making up the biggest share of all users, according to Statista data from February 2025. This age bracket tends to be more comfortable with decentralized technology and more skeptical of algorithm-driven feeds.

18. Adults aged 18–24 account for 23.23% of Mastodon users, according to audience demographic research. Together with the 25–34 cohort, they make Mastodon a predominantly young-adult platform.

19. More than half of all Mastodon users (56.19%) are between 18 and 34 years old, giving the platform one of the youngest median audiences among text-based social networks, including LinkedIn.

20. Adults aged 35–44 make up 18.56% of Mastodon's user base. Engagement from this group tends to center around professional communities, open-source software, and media criticism.

21. Users aged 45–54 represent 12.13% of Mastodon's audience, while those aged 55–64 account for 8.01%. Both groups are smaller than their share of X's or Facebook's user bases.

22. Adults aged 65 and older represent just 5.11% of Mastodon users, the smallest age segment on the platform. Mastodon's onboarding process, which requires selecting a server, continues to create friction for less tech-familiar users.

Mastodon Demographics: Gender & Geography Statistics

Mastodon's geographic concentration in Germany is tied directly to its origins: founder Eugen Rochko built the platform in Germany, and the early adopter community was heavily European. The gender skew mirrors patterns seen in most tech-adjacent platforms.

23. Approximately 67.64% of mastodon.social visitors are male and 32.36% female, based on SimilarWeb audience data as of March 2026. This roughly 2:1 male-to-female ratio is consistent across multiple tracking periods.

24. Over 27% of Mastodon users are based in Germany, reflecting both the platform's German origins and the country's historically strong interest in data privacy and open-source software.

25. The United States accounts for 30.35% of mastodon.social website traffic, making it the largest single country by traffic despite Mastodon's European roots.

26. Japan accounts for 23.15% of mastodon.social traffic, the second-highest country share globally, and Japanese users skew heavily mobile, with 96.66% accessing the platform via mobile devices rather than desktop.

27. Twitter/X drives over 90% of all traffic to Mastodon. That ratio highlights how deeply intertwined the two platforms' audiences are, and how much Mastodon's growth depends on events and controversies at X.

Growth Spikes & Migration Events Statistics

Every spike in Mastodon's growth history has been triggered by external events rather than organic discovery or marketing. That pattern tells marketers something important: Mastodon's audience grows reactively, not proactively.

28. On October 28, 2022, the day after Elon Musk's Twitter acquisition closed, 70,000 new users joined Mastodon in a single day. It was the largest single-day surge in the platform's history at the time.

29. In the days immediately following the Twitter acquisition, Mastodon gained over 489,000 new users within just a few days, overwhelming the network's largest instances and prompting emergency capacity upgrades.

30. Before the Musk acquisition, Mastodon averaged 60–80 per hour in new registrations. Within days of the acquisition closing, that rate surged to up to 75,000 new users per day.

31. Mastodon daily app downloads rose from 3,400 on October 27 to 113,400 on November 6, 2022, a 33-fold increase in 10 days. That is one of the fastest organic download spikes for any social app on record.

32. Between March 2024 and March 2025, Mastodon saw a 10.7% increase in users. Key triggers included X's decision to use user content for LLM training and its change allowing blocked users to view posts.

33. The r/mastodon subreddit grew 12% between March 12, 2024, and March 12, 2025, signaling rising community discussion even as platform MAU remained under 1 million.

Mastodon Finance & Organization Statistics

Mastodon operates as a non-profit, has rejected venture capital investment, and depends on a small core team and community donations. Its 2024 financials reveal both the strengths and constraints of that model.

34. Mastodon's total revenue in 2024 was €2.2 million. That total included major gifts, grants from EU programs, Patreon donations, and the platform's first commercial service contracts.

35. In 2024, Mastodon grew its core team from three to over six full-time employees, enabled in large part by a $1.5 million restructuring gift from Stack Overflow co-founder Jeff Atwood.

36. Mozilla donated $100,000 to Mastodon in 2024 (specifically to increase development capacity), while Craig Newmark (founder of Craigslist) donated $50,000 shortly after Mastodon established its U.S. non-profit entity.

37. Mastodon's recurring small-donor base (primarily via Patreon) generated €248,531 in 2024 from approximately 751 regular donors, fewer than 1% of the platform's monthly active users.

38. In 2024, Mastodon signed its first commercial contracts: a hosting agreement for the European Commission's Mastodon instance and a support contract with the German federal state of Schleswig-Holstein. These represent the first steps toward financial sustainability beyond donations.

Mastodon vs. Competitors Statistics

Placing Mastodon's numbers beside its competitors reveals the gap between idealistic adoption intent and actual usage behavior. The platform attracts attention during crises but struggles to compete with the network effects of centralized alternatives.

39. Bluesky, a competing decentralized alternative to X, had over 5.3 million monthly active users as of October 2025. That is roughly 7 to 8 times Mastodon's concurrent MAU count.

40. X (formerly Twitter) claims hundreds of millions of active users, though it does not publish verified monthly active user data. The gap between X and Mastodon represents the full weight of centralized network effects.

41. An analysis of more than 140,000 Twitter users who announced they were leaving for Mastodon found that only 1.6% had wholly abandoned Twitter, per New Scientist. It is one of the starkest measures of the gap between stated intent and actual platform migration.

42. Mastodon's own servers saw 117,000 active accounts by year-end 2022, per TechCrunch's review of the platform's Annual Report 2022. That represents roughly 37% retention from new sign-ups during the Twitter exodus.

43. Research published in 2025 found that users who migrated from Twitter to Mastodon averaged 9.19 connections on Mastodon, compared to 15.18 on Twitter. Smaller networks mean content discovery is harder, which directly affects how brands and creators can grow an audience.

What These Mastodon Statistics Mean for Your Marketing Strategy

The numbers above point to a platform that is genuinely small but genuinely engaged. You are looking at under 1 million monthly active users, most of them male, aged 18–34, concentrated in Europe and North America, with no paid advertising and heavy cross-pollination from X.

That profile makes Mastodon a viable channel for a narrow set of marketing goals. If your audience includes developers, journalists, academics, privacy advocates, or open-source software communities, Mastodon is one of the few places those groups have self-selected into a non-algorithmic environment. The platform's 10 million posts per month from a sub-million user base suggests you are dealing with a posting-heavy community, not passive scrollers.

Where Mastodon falls short for most marketers is scale and discoverability. Mastodon has no global trending algorithm and no paid amplification options. The 33-fold surge in downloads during the 2022 Twitter crisis showed how reactive growth can be.

The equally rapid decline showed how hard it is to convert crisis-driven registrations into sustained engagement. Only about 37% of sign-ups on Mastodon's own servers during the 2022 wave were still active by year end.

For marketers considering Mastodon, the strategic use case is community participation, not broadcast distribution. You should monitor the platform using social media monitoring tools to track relevant conversations, engage authentically in niche instances, and treat Mastodon as a listening and credibility channel rather than a volume channel.

Conclusion

Mastodon's numbers reveal a durable, if modest, audience: under 1 million active monthly users, over 1.18 billion posts published, and a community that has survived four years of post-Twitter-exodus attrition.

For marketers, the most actionable insight is that Mastodon's audience is self-selecting and values authenticity.

The 56% of users aged 18–34 and choosing a non-algorithmic platform represent engaged attention worth watching as Mastodon expands creator tools in 2026.