Posthog Session Replay Portable May 2026
1. What "Portable" Means in this Context
By default, session replays are stored in PostHog’s cloud (or your self-hosted instance) and viewed in their UI. Making them "portable" implies:
Bottom Line
If session replay is a critical part of your product analytics, don’t treat it as disposable. With PostHog, you can own, move, and integrate replay data like any other first-class event. That’s what makes it future-proof. posthog session replay portable
: Users can export session recordings for offline viewing or "safe keeping," allowing them to be shared or reviewed outside the PostHog platform Mobile Offline Buffering and technical context
Performance & Size Optimizations
- Tree pruning: ignore non-visible nodes (display:none) and offscreen if not interacted with.
- Resource dedup: store static assets (images) references; avoid embedding.
- Lazy snapshotting: full snapshot at session start, then periodic keyframes (e.g., every 30s) to guard against lost diffs.
- Modular imports: ship core recorder minimal; add-ons for console, network capture, screenshots.
this.recording = ;
// Replay session
const replayer = new SessionReplayer(session, 'replay-container');
replayer.play(); then periodic keyframes (e.g.
- Spin up a free PostHog Cloud instance (or
docker run posthog locally).
- Enable session replays on your staging environment.
- Set up an S3 export.
- Download the
posthog-replayer and watch a session from your ~/Downloads folder.
;
);
PostHog Session Replay enables portability by allowing teams to export recordings, share links, and embed sessions directly into tools like Zendesk or Slack. This approach enhances troubleshooting by providing immediate access to console logs, network activity, and technical context, including mobile-specific replays for iOS and Android. Read the full article on using PostHog session replays for support at