Posthog Session Replay Portable -

with open('user_session.json', 'w') as f: json.dump(snapshots, f)

import  Replayer  from 'posthog-replayer';
import sessionData from './exported-session.json';
// The 'portable' file contains an array of snapshots
const player = new Replayer(sessionData);
// Mount the player to a div in your DOM
player.mount(document.getElementById('replay-container'));
// Play the session
player.play();

Because the posthog-replayer library is open source and dependency-free, you can embed this player into your own internal admin dashboard, a Slack bot, or a local debugging tool. You are not forced to use PostHog's UI.

You can even write a simple Node script that converts the JSON snapshots into an HTML file. Double-click that file on a disconnected laptop, and you will see a perfect pixel-for-pixel replay of your customer’s journey. posthog session replay portable

In the modern world of product analytics, data silos are the enemy of insight. For years, teams have relied on Session Replay tools to watch user sessions, debug frontend issues, and understand drop-off points. But there has always been a catch: vendor lock-in.

Once you record a session in Hotjar, FullStory, or LogRocket, that session stays there. You cannot easily take that JSON payload of clicks, hovers, and scrolls and run your own custom Python script on it. You cannot merge that Replay data with your internal CRM without using brittle third-party APIs.

Enter PostHog, the open-source product analytics platform. And at the heart of its flexibility lies a game-changing concept: Portability. with open('user_session

But what does "Portable Session Replay" actually mean? And why does it matter more than navigator.sendBeacon?

This article dives deep into the technical architecture, the strategic benefits, and the practical use cases of making your Session Replay data truly portable with PostHog.