The best open source alternative to X is Mastodon. If that doesn't suit you, our users have ranked more than 50 alternatives to X and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to X are Gab, Bluesky, diaspora* and Minds.
Open-source chat platform providing community-focused group messaging, video calls, profile customization with animated avatars, custom emojis, tags, post creation, discovery of communities, and full source code access on GitHub. Entirely donation-funded.
![Profile Interface [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_993222_full.png)
![Messages View [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_281418_full.png)
![Server Discovery [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_282508_full.png)
![Server Settings [PC - 2025]](https://img.alternativeto.net/s/618x394/avif/nerimity_628028_full.png)
This is a fork of Pleroma, which is a microblogging server software that can federate (= exchange messages with) other servers that support ActivityPub. What that means is that you can host a server for yourself or your friends and stay in control of your online identity, but...
Soapbox is customizable open-source software that puts the power of social media in the hands of the people. Feature-rich and hyper-focused on providing a user experience to rival Big Tech, Soapbox is already home to some of the biggest alternative social platforms on the...
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.
Bastyon is a revolutionary anti-censorship decentralized publishing and social platform voted to freedom of speech. Based on the blockchain technology, it runs on a set of computers around the world, not controlled by any single entity.
Decentralized social network on the fediverse. Usable for both #microblogging and full length #blog posts. Editing both content and replies is supported.
NewConnection is a new app that allows users to make new connections with people all over the world. Users can come together though shared interests and find that lasting connection.Through NewConnection, you can meet new people and connect through chat and invites to travel...
While it’s always nice to have more Fediverse software, we have some specific features and goals that we think makes Takahe a great choice of server software:
MOSSLET is a privacy-first social network where you can connect with friends and family, or simply yourself, the way it should be — simple and meaningful. No ads, no algorithms, just your people.
Squakr is an open-source, zero tracking, zero spying, zero advertisement, secure microblogging site. Focused on free speech and data protection. Built by the community, for the community.
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Bastyon is a great alternative to Twitter since it does not ask users for personal email or phone number and it bypasses the censorship that traditional social medias apply. It is growing fast and I like the idea of a place with real freedom of speech