SlideSync is a free Chrome add-on designed to enhance presentations by allowing real-time slide synchronization with audiences. Once installed, users can easily present Google Slides by clicking 'Present w/ SlideSync,' generating a QR code or a 6-digit room code for viewers to connect. This tool ensures that presentations are shared without any delay, enabling a smooth experience for both presenters and participants.

The application supports a variety of devices, including phones, tablets, and laptops, making it accessible to all attendees. Key features include the ability for viewers to annotate slides with text or drawings and export the slides as a PDF. Notably, SlideSync prioritizes user privacy by not storing any data, requiring no accounts, and not using tracking or analytics. This makes it a reliable choice for those who value confidentiality during presentations.