DemoCast

About

DemoCast helps presenters create a clean mirror window for browser-based demos, screen sharing, walkthroughs, training sessions, and live presentations.

Instead of constantly switching display modes or hunting for the right window during a demo, DemoCast gives you a focused mirror experience designed for presenting. Start a capture, place the mirror where your audience can see it, and use presenter controls like blackout and focus shortcuts to keep the session moving.

DemoCast is built for:
- Conference speakers
- Technical trainers
- Consultants
- Sales engineers
- Microsoft 365 and Power Platform presenters
- Anyone who demos software live

Current features:
- Open a dedicated mirror window
- Capture a tab, window, or screen using browser capture controls
- Presenter-friendly mirror layout
- Blackout overlay for hiding the mirror temporarily
- Configurable blackout color
- Countdown timer overlay
- Keyboard shortcut support
- Mirror focus shortcut
- Performance presets and monitoring tools
- Confidence monitor popout
- Lightweight local settings

Privacy-first by design:
- DemoCast does not collect, sell, or share personal data
- DemoCast does not inject scripts into websites
- Screen capture is handled by the browser using standard browser permission prompts
- Settings are stored in the browser

DemoCast is intended to be simple, focused, and easier to use than full broadcast tools when you just need a clean presentation mirror.