Mastodon vs Facebook: Privacy Comparison
In this comprehensive privacy comparison, we analyze Mastodon and Facebook across six critical dimensions: data collection practices, encryption implementation, third-party data sharing, user privacy controls, transparency, and historical track record. Both services serve similar needs, but their approaches to user privacy differ significantly. Our analysis reveals that Mastodon offers a meaningfully better privacy experience overall, though each service has relative strengths and weaknesses worth understanding in detail.
The Short Answer
Before the dimension-by-dimension breakdown, here is the summary our scoring produced. Across the six privacy dimensions we score, Mastodon finishes ahead of Facebook, 43/60 to 37/60. That total reflects a privacy comparison in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
Data Collection produced the widest separation between the two, with Mastodon ahead 8 to 7 out of 10. The tightest race is Data Collection, separated by just 1 point (Mastodon 8/10, Facebook 7/10). Read on for the dimension-by-dimension reasoning behind these figures.
What Gets Collected
The starting point for judging privacy is always how data is collected. The amount of user data a service captures, keeps, and works with is the single biggest factor behind its privacy exposure. Mastodon shows more discipline on this front, collecting nothing beyond the bare minimum needed for the service to run. The competing option reaches for a much wider set of data, including behavioral patterns, device identifiers, and usage analytics that stretch beyond the essentials. In this category we rated Mastodon 8/10 and Facebook 7/10. The gap comes down to more than raw volume -- it is about the intent behind each piece of data and whether collecting it was ever justified.
Encryption Implementation
Encryption protects user data both in transit and at rest, and the implementation quality varies dramatically between services. Mastodon implements stronger encryption measures, including more robust protocols for data in transit and better protection for stored data. The specific encryption implementations differ in their coverage (which data is encrypted), their strength (which algorithms and key lengths are used), and whether end-to-end encryption is employed (preventing even the service provider from accessing user content). Mastodon scored 9/10 while Facebook scored 8/10 for encryption.
Sharing Data With Outside Parties
One of the most important privacy questions is how freely a service passes data along to others. The list of recipients can run from advertising networks and analytics providers to business partners and government requests. Mastodon draws firmer limits around third-party access to user data. Such practices matter for security and not only privacy, because each new entity with access is another door through which a breach could occur. Scores: Mastodon 5/10, Facebook 4/10.
User Privacy Controls
The availability and effectiveness of user-facing privacy controls determine how much agency individuals have over their own data. This includes settings for data collection opt-out, download and deletion capabilities, granular permission controls, and the ease with which users can exercise their rights under applicable privacy regulations. Mastodon provides more comprehensive and accessible privacy controls. Scores: Mastodon 6/10, Facebook 5/10.
Openness About Data Practices
At its core, transparency is about how clearly a service tells users what happens to their data. That means how understandable the privacy policy is, whether transparency reports exist, how promptly privacy inquiries are addressed, and whether changes to policy are flagged proactively. Mastodon is the stronger performer on transparency overall. Without clear and accessible privacy communication, informed consent and trust are impossible. Scores: Mastodon 7/10, Facebook 6/10.
What Their History Reveals
A service's history of privacy incidents, regulatory actions, and responses to vulnerabilities provides important context. Mastodon has a stronger historical record on privacy, with fewer incidents and more responsible handling of the issues that have arisen. Past behavior is often the best predictor of future privacy practices. Scores: Mastodon 8/10, Facebook 7/10.
Overall Verdict
Adding everything up, our full analysis lands Mastodon at 43/60 and Facebook at 37/60. For privacy, the overall winner is Mastodon. The two cover much the same functional ground, but the winner takes a more privacy-respecting stance across the dimensions that count for the most. Even so, no service is flawless, and whichever option you pick, you should always tune its privacy settings deliberately. We suggest pairing your choice with extra privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, so you end up with a well-rounded privacy posture. And if your threat model demands the very highest level of privacy, it is worth asking whether an even more privacy-focused alternative exists in this category beyond the two compared here.