Social Media

Is Mastodon Safe?

Owned by Mastodon gGmbH (Non-profit) • Last updated January 2026

📋 Short Answer:
Mastodon is one of the most privacy-friendly social networks, with no advertising and decentralized data storage. However, DMs are not encrypted and server admins can read them.
PrivacyDefend Safety Score
8.0/10
Excellent
Data Collection
🟢 Low
Encryption
🟡 Partial
Third-Party Sharing
🟢 No
Privacy Controls
🟢 Good

📊 What Data Does Mastodon Collect?

Mastodon has low data collection practices. Here's what they collect:

This level of data collection is minimal for apps in the social media category.

Why This Matters

The data Mastodon collects can be used for personalization, advertising, analytics, and may be shared with third parties. Understanding what's collected helps you make informed privacy decisions.

🔒 Mastodon Encryption & Security

Encryption Level: Partial

Standard encryption in transit. DMs are not end-to-end encrypted. Each server has different policies.

What This Means For You

Your data is encrypted during transmission but may be accessible by the company on their servers.

🔗 Does Mastodon Share Your Data?

Third-Party Sharing: No

No centralized advertising. Individual servers may have different policies.

✅ What's Good

  • Partial encryption
  • Good privacy controls
  • Open source and audited

❌ Concerns

  • Low data collection

⚠️ Mastodon Privacy Controversies

Mastodon has faced scrutiny for the following privacy and security concerns:

These incidents highlight the importance of understanding Mastodon's privacy practices before use.

🔄 Safer Alternatives to Mastodon

Looking for more privacy-focused options? Consider these alternatives:

🛡️ Recommended Privacy Products

Enhance your privacy when using Mastodon with these tools:

As an Amazon Associate, we earn from qualifying purchases. This helps support our privacy research.

❓ Frequently Asked Questions

Is Mastodon safe to use in 2026?
Mastodon is one of the most privacy-friendly social networks, with no advertising and decentralized data storage. However, DMs are not encrypted and server admins can read them.
What data does Mastodon collect about me?
Mastodon collects: posts, profile info, IP address (server dependent). This is considered low data collection.
Does Mastodon sell my personal data?
No centralized advertising. Individual servers may have different policies.
Is Mastodon safe for kids?
What are safer alternatives to Mastodon?
Consider: Bluesky, Lemmy, Pixelfed. See our alternatives section above.

Last updated: January 2026 • Review by PrivacyDefend Research Team