im_service

The premium Open Source alternative to Sendbird

🎯 Best for:Adding chat to apps without SaaS fees.
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GPL-2.0License

What is im_service?

Replaces expensive real-time chat APIs with a lightweight Golang-based WebSocket server. Handles high-concurrency message routing, offline storage, and group chat logic without external SaaS dependencies.

Tech Stack
GoBackend & Auth

Why im_service?

  • High concurrency (Go)
  • Horizontal scaling
  • Low latency

Limitations

  • No built-in UI kit
  • Requires DB maintenance
  • Documentation gaps
1/5/2026
Last Update
609
Forks
4
Issues
GPL-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to im_service instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Sendbird)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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