Deepstream.io – open-source real-time server with pub/sub and data sync
A realtime server for the modern web
Deepstream.io – open-source real-time server with pub/sub and data sync launched on February 10, 2016 with 301 votes, #54 of 4,386 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 10 years on.
In plain words
Deepstream.io is an open-source real-time server that enables clients and backend services to synchronize data, exchange events, and communicate through pub/sub messaging. It features interactive JSON documents that sync across multiple clients and persist to cache or storage, topic-based subscriptions for broadcasting data, and remote procedure call capabilities for routing requests between clients. The server prioritizes security with server-side configuration and integrates with popular databases, caches, and message buses without requiring code changes.
written from the facts on this page · September 2026
From the sources
deepstream allows clients and backend-services to sync data, send events and more with a heavy focus on security. Configure everything server side without writing a line of code while still connecting to your favorite cache, database, message bus and more. Interactive JSON documents that can be edited and observed. Changes are persisted and synced across clients and saved in cache/storage. Many clients can subscribe to topics and receive data whenever other clients publish it to the same topic. Clients can register functions to be called by other clients. deepstream will smartly route requests and responses. Get started with deepstream by reading more about the high level concepts it…from deepstream.io
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