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Top Open Source Messaging & Event Streaming Tools in 2026

A curated collection of the 2 best free and open-source Messaging & Event Streaming tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • Soketi

    Open-source, Pusher-compatible WebSockets server that's simple, fast, and resilient for building real-time applications.

    Stars
    5,633
    Last commit
    29mo ago
    License
    AGPL-3.0

  • Ntfy

    Send push notifications via simple HTTP requests

    Stars
    33,788
    Last commit
    17d ago
    License
    Apache-2.0
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Showing 2 of 2 open-source tools