⚠️ Mobile devices may take 3-5 minutes to process. Desktop recommended.
Upload Video ▶
📹
Drop video here or click to upload
MP4, MOV, AVI • Max 60 seconds • Max 100MB
📏 0:00
📐 0x0
📦 0 MB
Load a .dtproj or .dtproj-full file
Notice
Export quality and smoothness depends on your browser and device performance.
This is the first iteration of the Video Analysis tool. We're working on a new export method that guarantees smooth output regardless of device.
Coming soon: animated telestrations, dynamic player tracking
Player Marker
20%
15px
Break Chain: stop connecting to previous markers
Text Box
Arrows
Drag to draw • Double-click to curve
Shapes
20%
Drag to create shape
🎬
Upload a video to get started
Max 60 seconds • MP4, MOV, or AVI
✏️ Annotation Mode - Draw on the canvas
0:00 / 0:00
3s
💡 Tip: Click to select, drag to move, use handles to resize. Delete/Backspace removes selected.
How to Use
1
Upload a video clip (max 60 seconds)
2
Pause at key moments and click Add Annotation
3
Add annotations (circles, arrows, shapes, text)
4
Click Save & Resume to continue
5
Use Preview to review your work
6
Export to download the final video
Annotations
No annotations yet. Click "Add Annotation" to add one.
Export
Save Project
Lightweight: small file, re-select video on load
With video: larger file, fully self-contained
With video: larger file, fully self-contained