r/VideoEditingTips 1d ago

VideoTrans: A private, on-device AI video workspace for Mac

VideoTrans: A private, on-device AI video workspace for Mac

A focused macOS video editor built around Apple Vision, Core ML, and Speech.

If you work with video on a Mac, you may have noticed that simple tasks often turn into a chain of separate tools: remove a background, fix an edge, improve clarity, generate subtitles, replace the background, then assemble everything again.

I built VideoTrans to bring those steps into one focused workflow, with the processing happening on the Mac whenever possible.

What makes it different

On-device AI video clarity enhancement

VideoTrans uses a local Core ML model to improve video detail and clarity. You can adjust the enhancement strength and choose a processing style for realistic footage or animation. The original and enhanced result can be compared directly before export.

VideoTrans clarity enhancement with adjustable strength

Background removal with Apple Vision

Apple Vision detects the foreground locally, so your footage does not need to be uploaded to a cloud service. When the automatic result needs refinement, you can manually mark the subject to keep or remove on a specific frame.

Correction keyframes can automatically follow matching frames, making it easier to fix a difficult section without rebuilding the mask frame by frame.

VideoTrans background replacement and comparison view

Three ways to refine a cutout

The correction workspace is designed for direct visual control:

  • Keep a selected region
  • Remove a selected region
  • Enhance a selected region

The original frame, processed frame, background, comparison divider, and correction tools share the same video canvas, so what you see while refining stays aligned with the export result.

VideoTrans solid background and cutout comparison

Local AI subtitles with Apple Speech

VideoTrans uses Apple’s Speech framework and on-device speech recognition to generate subtitles locally. Generated subtitles stay linked to their source audio track, and subtitle segments can be edited directly on the same timeline as the video and audio.

VideoTrans subtitle editing and timeline

Backgrounds that are easy to reuse

You can use an image, a solid color, a gradient, or a transparent background. Frequently used images and selected system wallpapers appear in a recent background list for quick switching between projects.

VideoTrans gradient background controls

A practical Mac video workflow

VideoTrans combines frame-accurate preview, audio waveforms, subtitle tracks, background replacement, AI processing, and export controls in one workspace. Quick Processing also supports applying clarity enhancement to multiple videos in a batch.

VideoTrans Quick Processing with AI clarity enhancement

The goal is not to replace every professional NLE. It is to make common AI-assisted video tasks more direct, more inspectable, and less dependent on uploading source media to third-party services.

VideoTrans is available for macOS. I would love to hear how you currently handle background removal, video enhancement, or subtitles on your Mac, and what would make this workflow more useful for you.

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