Visual bilateral stimulation
Four patterns — horizontal, infinity, circular, pendulum — with adjustable speed, size and color. Perfect for eye-movement desensitization.
Features
Every detail tuned for online EMDR reprocessing.
BilateralSync gives EMDR therapists precise real-time control over visual and auditory bilateral stimulation, with a client view that stays completely out of the way.
Feature list
Stereo auditory BLS
True left/right panned tones with adjustable frequency, volume and pan depth, generated in-browser and locked to the visual target.
Sub-100 ms sync
A dedicated real-time channel keeps the client's screen locked to the therapist's controls. Change speed or pattern and the client sees it instantly.
Distraction-free client view
The client sees only the moving target. No chat, no controls, no branding — nothing to pull attention out of processing.
One secure link
Start a session in one click and share a short unguessable code. No downloads, no accounts, works in every modern browser.
Privacy-first by design
No client PII, cookieless anonymous analytics, TLS end-to-end, sessions expire automatically. GDPR-ready.
Session timer & presets
Save your favourite pattern/speed/audio combinations and switch between them mid-session with one keystroke.
Works alongside video
Zoom, Microsoft Teams, Doxy.me, Google Meet, SimplePractice — BilateralSync runs in a browser tab beside them.
Deep dives
Learn how each modality works in EMDR practice.