About Crop

Crop videos in your browser—free, private, no server upload. Pick aspect ratio or free region, export MP4 locally with NanoPix.

How to Crop Video Frame & Remove Black Bars Locally

Crop unwanted video borders and adjust aspect ratios in 3 easy steps.

  1. 1Open the NanoPix Crop workspace and load your video file.
  2. 2Choose an aspect ratio preset or adjust the interactive bounding box handles.
  3. 3Click export to render and download your cropped video directly on your computer.

Tool facts

Processing
Runs locally in your browser. Source files are not uploaded to NanoPix for editing.
Available controls
Freeform crop & 16:9 / 9:16 / 1:1 presets · Interactive draggable bounding box · Adaptive canvas export without black bars
Output
Export cropped video locally

Frequently asked questions

What can Crop do?
Crop videos in your browser—free, private, no server upload. Pick aspect ratio or free region, export MP4 locally with NanoPix.
Does cropping reduce video quality or make it blurry?
Cropping extracts a designated bounding box from the original frame. NanoPix uses hardware-accelerated high-fidelity pixel resampling to preserve native crispness in the cropped region without synthetic compression degradation.
Can I crop horizontal videos to 9:16 for TikTok, Instagram Reels, and YouTube Shorts?
Yes. NanoPix includes one-click presets for 9:16, 1:1, 16:9, and 4:3 ratios. You can easily drag and position the bounding box over your subject.
Are my files uploaded to your servers?
No. NanoPix runs in your browser with WebAssembly. Your video, audio, or image files stay on your device—we never receive them.
Is browser-based editing private?
Yes. Processing happens locally on your machine. Nothing is sent to NanoPix servers for encoding or storage.
Is this tool free?
Yes. NanoPix tools are free to use in a modern browser. No account is required for basic editing and export.