Iceshrimp.NET
ActivityPub-based federated social networking server

Iceshrimp.NET is a decentralized and federated social networking service that implements the ActivityPub standard. It continues the legacy of the Iceshrimp project with a new codebase focused on performance, stability, and maintainability.
Key Features
- ActivityPub federation for decentralized social networking
- Resource-efficient backend built on .NET
- Web frontend built with Blazor WebAssembly
- Configurable, HTML-only public preview for unauthenticated visitors
- Mastodon-compatible API intended to work with a broad range of Mastodon clients
- Migration path for existing Iceshrimp-JS instances
Use Cases
- Run a community-focused fediverse instance for an organization or interest group
- Host a personal or small-community social server while remaining compatible with common Mastodon clients
- Experiment with ActivityPub federation and client interoperability in a .NET-based stack
Limitations and Considerations
- Client compatibility depends on the Mastodon-compatible API surface and may vary by client features
- As an actively developed new codebase, features and behavior may change between releases
Iceshrimp.NET is a solid option for operators who want an ActivityPub server with a modern .NET backend and a Blazor-based web UI, prioritizing performance and long-term maintainability.
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