Getting Started
Uploading a Video
How to upload your video to Toast and what formats are supported.
Supported Formats
Toast supports all common video formats that your browser can decode:
| Format | Extension | Notes |
|---|---|---|
| MP4 | .mp4 | Most common, recommended |
| WebM | .webm | Good for screen recordings |
| MOV | .mov | Common from iPhones and Macs |
| MKV | .mkv | Supported in most browsers |
| AVI | .avi | Legacy format, works in most cases |
Maximum file size: 10 GB
How Upload Works
- Navigate to the Projects page
- Click New Project
- Drag and drop your video file into the upload zone, or click to browse your files
- Toast begins processing immediately
Privacy by Design
Your video file is stored in your browser's Origin Private File System (OPFS) — a secure, sandboxed storage area that only Toast can access. The video is never uploaded to any server.
Only the extracted audio track is sent (encrypted) to external services for transcription. Video frames stay on your device at all times.
What Happens After Upload
Toast automatically starts its processing pipeline:
- Audio extraction — Separates audio from video using FFmpeg (runs in your browser)
- Audio quality check — Measures signal-to-noise ratio (SNR)
- Noise removal — If audio is noisy (SNR below 25 dB), automatic noise removal is applied
- Transcription — Word-level timestamps in your video's language
- Face tracking — Detects face position for smart reframing
- AI analysis — Analyzes content and generates the edit manifest
Once complete, you're automatically taken to the editor.
Tips
- Use good audio: Higher quality audio leads to better transcription accuracy
- Single speaker works best: Toast is optimized for talking-head content with one primary speaker
- Browser matters: Chrome and Edge have the best WebCodecs support for processing and export