pump.io

The premium Open Source alternative to Twitter

🎯 Best for:Developers building decentralized social applications.
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Apache-2.0License

What is pump.io?

A self-hosted social engine that replaces centralized social media backends. It implements the ActivityStreams protocol using a Node.js and NoSQL architecture for federated stream processing.

Tech Stack
JavaScriptSocial Networks

Why pump.io?

  • ActivityStreams native
  • Lightweight Node.js core
  • Federation-ready

Limitations

  • Limited front-end options
  • Smaller ecosystem than Mastodon
  • Requires NoSQL management
3/1/2026
Last Update
326
Forks
679
Issues
Apache-2.0
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on Twitter)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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