Install the Extension
The presenter installs the slidesync Chrome extension in just a few clicks.
Your presentation.
In everyone’s hands.
Share your slides live. Everyone can follow along, take notes, and keep what they learn.
Reveal.js presentations in HTML (.html or .htm)
✓ Free and open source
How It Works
Present on Google Slides
Start presenting normally. Viewers scan the QR code or enter the room code.
Follow Along in Real-Time
Viewers see each slide on their own device, updated instantly as the presenter advances.
Real-Time Sync
Slides update instantly on every viewer's device. Each click is captured, so animations and step-by-step builds just work.
Annotations
Viewers can draw, highlight, and write notes directly on any slide using pen, text, or eraser tools.
PDF Export
Download all slides as a PDF, including your personal annotations, to review later.
No Login Required
Zero friction. No accounts, no sign-ups. Just enter the room code and start following along.