Learn how Bluesky and Mastodon differ in their key features, development activity, technology stack and community adoption, so you can decide which of these decentralized social networks is best for you.
Last 30 days
Last commit
Repository age
Version
License
Repository

Last 30 days
Last commit
Repository age
Version
License
Self-hosted
Repository

Both Bluesky and Mastodon have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
Mastodon leads in popularity with 50,258 stars vs 18,258 stars for Bluesky. The 175% higher star count indicates stronger community adoption. In terms of developer contributions, Mastodon has 7,488 forks, indicating strong developer engagement.
Bluesky is growing faster, adding 84 stars in the last 30 days (+0.5%) against adding 100 stars for Mastodon (+0.2%). Bluesky is the smaller project of the two, so it is closing the gap rather than extending a lead.
Both projects show recent activity, with Bluesky last updated 4 hours ago and Mastodon 4 hours ago.
Both tools share common technology foundations, being built with JavaScript, CSS, Typescript, JSX, Ruby. However, they differ in their additional technology choices: Bluesky uses Bash, Golang, Swift, Kotlin while Mastodon leverages SCSS, Rails.
Mastodon has been in development longer, starting 11 years ago, compared to Bluesky which began 4 years ago. This 6.4-year head start suggests Mastodon may have more mature features and established processes.
Bluesky uses the MIT license, which is more permissive than Mastodon's AGPL-3.0 license, potentially offering greater flexibility for commercial use and integration.
Both tools serve similar use cases in Decentralized Social Networks.
Mastodon provides self-hosting options for complete data control and customization, while Bluesky may be primarily cloud-based or require different deployment approaches.