Local face detection
MediaPipe detects the main visible face without sending frames to a server.
Local AI video framing
Auto Reframe Video Online
Local processingAI face trackingNo upload
Follow the main person and reframe video for portrait or square output.
Source video
Choose a file
Choose a portrait or square format.
Balance stability and tracking speed.
How it works
Three steps to finish the browser workflow.
Choose a people video
Select a video with one clear main face and choose a portrait or square output ratio.
Track the main subject
The browser detects the largest visible face and smooths the crop path across frames.
Preview and download
Preview the reframed MP4, confirm subject framing and audio, then download it.
Everything you need
Core details about privacy, browser support, output, and practical limits before you start.
Smooth moving crop
Temporal smoothing keeps the crop centered without abrupt jumps.
Private MP4 export
Video decoding, rendering, audio copying, and export stay on this device.
Frequently asked questions
Find quick answers about privacy, browser support, exports, and what to try when a file is heavy.
Related tools
Continue editing with nearby ArtPlayer tools that work with the same local, browser-first workflow.
