The best open source alternative to Bluesky is Mastodon. If that doesn't suit you, we've compiled a ranked list of other open source Bluesky alternatives to help you find a suitable replacement. Other interesting open source alternative to Bluesky is Hey.
Bluesky alternatives are mainly Decentralized Social Networks but may also be Web3 Platforms. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Bluesky.
A free, open-source social media platform that puts users in charge of their data and connections

Mastodon is a radically different approach to social media that puts control back in the hands of users.
As a decentralized, open-source platform, Mastodon offers several key benefits:
User-controlled experience: You decide what appears in your feed, without algorithms or ads dictating content. Follow accounts across any Mastodon server from a single profile and see posts in chronological order.
Build your audience with confidence: Manage your audience directly, without intermediaries. Self-hosting Mastodon gives you full control over your online presence while still connecting to the wider Mastodon network.
Effective moderation: Each server creates and enforces its own rules locally, allowing for more responsive and tailored moderation compared to centralized social media. Join a server aligned with your values or host your own.
Express yourself freely: Mastodon supports rich media posts including audio, video, images, polls, and more. Custom emojis, content warnings, and other features allow for nuanced self-expression.
Open and interoperable: Built on open web protocols, Mastodon can connect with other platforms in the "fediverse", expanding your social network beyond just one service.
By choosing Mastodon, you're opting for a social media experience that respects your agency, protects your data, and fosters genuine community engagement. Join the growing network of users taking control of their online social presence with Mastodon.
A blockchain-powered social platform offering censorship-resistant content sharing, user-owned data, and innovative monetization options.

Hey is a groundbreaking decentralized social networking platform built for the Web3 era. It combines the best aspects of traditional social media with the power of blockchain technology to create a more open, transparent, and user-centric experience.
Key benefits of Hey include:
Hey reimagines social networking for a decentralized future, empowering users with greater control, privacy, and earning potential. Join the revolution in digital social interaction and experience the freedom of Web3 social networking.
Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
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