Posthog Session Replay Portable May 2026

PostHog Session Replay — Portable Overview

PostHog Session Replay is a user-recording feature that captures visitor interactions (clicks, mouse movements, scrolls, form inputs, and DOM changes) so teams can replay real user sessions to reproduce bugs, understand workflows, and improve UX. Making Session Replay portable focuses on easy export, lightweight embedding, privacy-preserving portability, and compatibility across environments.

Posthog Session Replay works by recording user interactions, such as mouse movements, clicks, and scrolling, and storing them in a session recording. You can then replay these sessions to visualize how users interacted with your product. posthog session replay portable

export(): string if (!this.recording) return ''; this.flushEvents(); return JSON.stringify(this.recording); PostHog Session Replay — Portable Overview PostHog Session

1. Improved user understanding: Session Replay helps you gain a deeper understanding of how users interact with your product, allowing you to identify pain points and areas for improvement.
2. Enhanced debugging: With Session Replay, you can easily reproduce and debug issues, reducing the time and effort required to resolve problems.
3. Data-driven decision making: By analyzing user sessions, you can make data-driven decisions to optimize your product and improve user experience.

If you export raw, unmasked replays to a data warehouse, every engineer with SQL access will be able to read your users' passwords (if not hashed client-side—use mask_all_text). Improved user understanding : Session Replay helps you

Posthog Session Replay is a game-changing feature that allows developers to record and replay user sessions, providing unparalleled insights into user behavior. But what really sets it apart is its portability - making it easy to integrate and use across different platforms and environments.

const compressed = await new Response(stream.readable).arrayBuffer();
return compressed;

For advanced users, the PostHog API allows for programmatic access to session data. You can build automated scripts to: Self-host PostHog - Docs