The best alternative to Bluesky is Mastodon, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Bluesky and six of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Bluesky are Movim, snac, Viadeo and Blips.
Decentralized and federated social platform with no ads, focusing on personal interaction, and offering 500 character posts, custom emojis, content warnings, and robust moderation tools.
Decentralized social and blog platform based on XMPP, enabling self-hosting, cross-network chat, video calls, and group collaboration. Users control and migrate their data, communicate across various networks, and access services from any node while preserving privacy and open-source principles.
[Only in French]
Viadeo is a professional social network used by over 40 million professionals in 226 countries worldwide. Our members consist of business owners, entrepreneurs and managers from a diverse range of businesses - both start-up and well-established. Every day Viadeo.
Blips is a service for friends, family, and co–workers to communicate and stay connected through the exchange of quick, frequent answers to one simple question: What are you doing?
Germany
EU
France
It's open source, and already functionally operating as a federated network.