What is Ably?
Ably is a realtime infrastructure platform that provides APIs and SDKs to power live experiences at global scale, with no infrastructure to build or maintain. Ably’s products include:
- Pub/Sub: Managed WebSocket messaging at scale, with guaranteed ordering, exactly-once delivery, and connection recovery out of the box
- Chat, Spaces, and LiveSync: Purpose-built SDKs for common realtime use cases
- AI Transport: Resumable streaming and session continuity for AI applications
0 alternatives to Ably to consider
We’ll now look at alternatives to Ably - competing technologies that allow you to build realtime experiences for end-users.
Disclaimer: The information on the alternatives presented here was based on documentation and resources freely available online and was last updated on 10 Jul 2026. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please let us know.