pump.io
The premium Open Source alternative to Twitter
🎯 Best for:Developers building decentralized social applications.
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+
SAVE 100%