Are files uploaded for this tool?

This browser tool processes the selected media locally on this device. The file is not uploaded to ArtPlayer servers for this workflow.

Will the export have a watermark?

No. ArtPlayer browser tools do not add watermarks to exported files.

Why can processing take time?

The work runs in your browser, so speed depends on your device, browser, memory, source size, and the export settings needed for the result.

Which browsers work best?

Recent Chrome, Edge, and other modern Chromium browsers usually work best for heavier browser media processing.

What should I try if a large file fails?

Try a smaller source, close other heavy tabs, reduce resolution or duration first, and keep the tab open until the export finishes.

Which videos work best?

Single-person talking-head, presenter, and interview videos with a clear face work best. Choose 9:16, 1:1, or 4:5 output. Fast cuts, crowds, and videos without a visible face may need manual cropping.

Does my video get uploaded?

No. Face detection, reframing, encoding, and download run in your browser.

How is this different from Crop Video?

Crop Video keeps one fixed crop. Auto Reframe moves the crop smoothly to follow the main detected face.

Local AI video framing

Landscape to Portrait Video

Local processingAI face trackingNo upload

Turn landscape videos into portrait or square clips with local face tracking. Keep the main speaker in view and export MP4 for Shorts or Reels.

Source video

Drop a file here, or click to choose

0:00.0 / 0:00.0

AI mode

Output aspect ratio

Tracking smoothness

How it works

Three steps to finish the browser workflow.

1
Choose a people video
Select a video with one clear main face and choose a portrait or square output ratio.
2
Track the main subject
The browser detects the largest visible face and smooths the crop path across frames.
3
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.

Local face detection

MediaPipe detects the main visible face without sending frames to a server.

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.

Input, output and limits

Check supported inputs, output formats and usage requirements before you start.

Supported input	Video files such as MP4, MOV and WebM. Container and codec support depends on the browser and processing runtime.
Output result	Export options: MP4.
Processing and privacy	Processing runs on this device. Source media is not uploaded for this workflow.
Browser requirements	A browser with the decoding and encoding capabilities needed by the selected media. Available codecs vary by device.
Usage limits	Up to 5 minutes on desktop or 2 minutes on mobile. Face detection and browser memory can limit usable results.
Which videos work best?	Single-person talking-head, presenter, and interview videos with a clear face work best. Choose 9:16, 1:1, or 4:5 output. Fast cuts, crowds, and videos without a visible face may need manual cropping.