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Centrifugo vs Mercure
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Free
Free
Real-Time Data Sync
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Real-Time Data Sync
Overview
Focus
Real-Time Data Sync
Communication APIs
Product
Open source scalable real-time messaging server supporting WebSockets and SSE with built-in presence and history features.
Open protocol and reference implementation for real-time communications using Server-Sent Events for push updates.
Headquarters
Remote
Lyon, France
Company size
2-10 employees
2-10 employees
Founded
2013
2018
Pricing details
Published rate
Free
Free
Free options
Free plan
Free plan, Free trial
Source updated
Oct 29, 2026
Oct 29, 2026