Copresent

Product Introduction

1. Definition: Copresent is a browser-based presentation control and collaboration tool, specifically a Chrome extension for Google Slides. It functions as a web-based remote control and real-time synchronization layer, enabling multi-user control of a single slide deck.
2. Core Value Proposition: It exists to eliminate the friction of traditional presentation handoffs and hardware clickers. Its primary value is enabling seamless co-presenting and wireless slide control by turning any smartphone or secondary device into a shared Google Slides remote, requiring no installation or accounts for guest presenters.

Main Features

1. Web-Based Mobile Clicker: The core functionality transforms a smartphone's browser into a presentation remote. It works by generating a unique, session-specific URL that hosts a mobile-optimized web interface. Users swipe horizontally on their phone's screen to navigate slides (swipe right for next, left for previous). This leverages WebSocket or similar real-time communication protocols to send control commands directly to the Google Slides tab where the extension is active.
2. Real-Time Speaker Notes Sync: This feature broadcasts the speaker notes from the active Google Slide to all connected controller devices simultaneously. Technically, the extension parses the notes pane from the Slides DOM or API and pushes this text data to all linked remote sessions via a real-time data channel, ensuring every co-presenter has contextual talking points without needing to see the main screen.
3. Multi-Controller Session Management: The system architecture supports up to 10 concurrent controllers in a single session. It employs a tokenized link system where the host's extension creates a unique session ID. When guests access the link, their devices establish a peer-to-peer or server-relayed connection to the host's browser. The system manages "control state," allowing any connected device to advance or reverse the deck for everyone, facilitating smooth presentation handoffs.

Problems Solved

1. Pain Point: It solves the logistical inefficiency and disruption of switching presenters during meetings, demos, or lectures. Traditional methods require passing a physical clicker, swapping seats to control a laptop, or transferring screen-share permissions in virtual meetings, which breaks flow and professionalism.
2. Target Audience: Specific user personas include Academic Lecturers & Teachers (moving around classrooms), Student Project Teams (for collaborative capstone defenses), Sales & Partner Enablement Teams (running long-form presentations), Consultants & Agency Teams (delivering client read-outs), and Conference Speakers & Webinar Hosts (managing multi-presenter panels).
3. Use Cases: Essential scenarios are: Collaborative Group Presentations where each member presents a section; Educational Workshops where an instructor hands control to a student; Client Proposals where different department heads present sequentially; and Large-Room Presentations where the speaker needs to roam freely without a handheld clicker.

Unique Advantages

1. Differentiation: Unlike hardware clickers (Logitech Spotlight) or single-user mobile apps, Copresent is a shared, multi-user web remote. Unlike screen-sharing handoffs in Zoom or Teams, it allows multiple people to control the source deck without changing who is sharing their screen. It is more lightweight and frictionless than project management or collaboration platforms that offer slide embedding.
2. Key Innovation: Its zero-friction guest access model is the key innovation. By requiring only the host to install a Chrome extension and providing a simple link for guests (who need no app, account, or login), it drastically reduces the barrier to ad-hoc presentation collaboration. The technology stack focuses on ephemeral, secure session links that provide direct control over the native Google Slides interface.

Frequently Asked Questions (FAQ)

1. Is Copresent compatible with Microsoft PowerPoint or Apple Keynote? No, Copresent is currently a dedicated tool for Google Slides remote control and does not support PowerPoint Online, desktop PowerPoint, or Keynote. Its functionality is built specifically for the Google Slides web application ecosystem.
2. How does Copresent handle privacy and security for my Google Slides deck? Copresent uses a private-by-design architecture. Your slide deck never leaves Google's servers or is uploaded to Copresent's systems. The extension operates locally in your browser, and the unique session link acts as a secure channel for control commands only. The link is complex and unguessable, providing security through obscurity for each session.
3. Can I use the Copresent remote control on an iPad or Android tablet? Yes, the Copresent remote is fully responsive and works on any device with a modern web browser, including iPads, Android tablets, and smartphones. The interface is designed for touch gestures like swiping, making it effective on all mobile and tablet form factors.
4. What happens if my internet connection drops during a presentation? The host's computer running the Google Slides tab and Copresent extension must maintain an internet connection to Google Slides. If a co-presenter's device loses connection, they will be disconnected from the control session but can rejoin using the same link. The primary slide control remains with the host's browser.
5. Are there any limitations on the number of presentations or slides for the free version? Copresent is free forever with no stated limits on the number of presentations, slides per deck, or frequency of use. The core limitation is the concurrent controller limit (up to 10 per session), which applies to all users.