Stageum

Stageum is a browser-based 3D public speaking trainer that lets you practice presentations in photorealistic virtual environments without needing a VR headset. You just need a webcam and microphone — open the site, pick a stage (conference room, lecture hall, theater, courtroom, or classroom), and start speaking. The AI watches your eye contact, listens for filler words like "um" and "uh", tracks your pacing, and measures vocal confidence. You get live feedback during the session and a detailed report afterward with specific tips for improvement.

The tool runs on WebGL and WebGPU, so the 3D scenes look realistic with lighting and shadows. Virtual audiences react to your presentation, which helps simulate the pressure of a real audience. You can also upload your own slides (PowerPoint, PDF, or Keynote) and display them on virtual screens in the environment. Stageum processes your webcam feed locally during practice for privacy, then stores encrypted recordings in the cloud for later review. It works on Chrome, Safari, Firefox, and Edge without any downloads or installations.

Stageum is best for anyone who needs to speak in front of groups — professionals rehearsing boardroom pitches, students preparing academic presentations, or executives practicing keynotes. The free plan gives you three sessions to try it out. The Pro plan at $10/month unlocks unlimited sessions, all six environments, advanced analytics, and progress tracking. It's a practical alternative to expensive VR training setups, delivering about 90% of the immersion with zero hardware cost.