FJ Tools

🚀 AI Video Reframer

Just 2 clicks to convert 16:9 landscape videos to 9:16 TikTok/YouTube Shorts format
🎯AI Face/ Motion Tracking
✨100% Free
🔒No Sign-up Required
⚡No Limits
📁 Upload Your Landscape Video
Drop your 16:9 video here or click to browse • Works with MP4, MOV, AVI & more!
Tracking mode
Model ready
Export settings
Select a video to begin
Duration: 0.00s
Select a video above to enable tracking and controls.
Drag the green box over the original video to set the crop at the current time. Add keyframes as needed; the crop interpolates between them.
Smoothing0.95
Smoothing affects box motion globally (manual drag and tracking). Preview must be playing to see tracking. TF.js loads models on first use. Motion tracker is downscaled and smoothed for stability.

About Video Reframe (9:16)

Video Reframe is a client-side tool to convert horizontal videos into vertical formats like 9:16 for Shorts, Reels, and TikTok. It supports automatic face tracking using TensorFlow.js (BlazeFace) or a motion-based tracker, plus manual keyframing with a smooth interpolated camera move between keyframes. Export MP4 is fully in-browser for privacy and speed.

Key features

  • Drag a 9:16 crop box over your source video and set keyframes.
  • Automatic tracking with FaceDetector or motion differencing.
  • Smoothing control for natural camera movement.
  • Export to MP4 directly in the browser (no uploads).
  • Frame blending option for smoother motion (offline path).

How to use

  1. Drop a video and pick your target Aspect and Resolution.
  2. Choose a Tracking mode and click Start Preview, or add manual keyframes.
  3. Tweak Smoothing to get pleasing motion between keyframes.
  4. Click Export MP4 and keep the tab active until the download begins.

FAQ

Is my video uploaded?

Everything runs locally in your browser. Files are not uploaded to a server.

Which browsers are supported?

Recent Chromium browsers work best for MP4 recording. If MP4 isn’t supported directly, the tool records WebM and transcodes to MP4 with a WASM-based encoder.

Keywords

video reframe, crop 9:16, vertical video, reels, shorts, tiktok, face tracking, keyframes