RePlaya – self-hosted browser session replay with live tailing

In plain words

RePlaya is a self-hosted browser session replay tool built on rrweb that captures and plays back user sessions. It uses a durable stream architecture per session, eliminating the need for separate message queues, databases, and blob storage. The tool's unique feature is live tailing, which allows the player to watch sessions in real-time as they occur by reading from the same stream the recorder writes to. It is designed for developers who want to self-host session replay functionality with minimal infrastructure complexity.

written from the facts on this page · September 2026

From the sources

Self-hosted browser session replay built on S2 with live tailing - s2-streamstore/replaya

In the maker’s words, at launch

Hi HN, I'm one of the founders of s2.dev. RePlaya (https://github.com/s2-streamstore/replaya) is a self-hosted browser session replay tool using rrweb (https://github.com/rrweb-io/rrweb). It occurred to me that a durable stream per session would be a much neater architectural…

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