Preview before export
Play, pause, seek, and adjust volume while you frame the perfect crop.
Free Online Video Crop
Crop MP4, MOV, MKV, and WebM in your browser with WebCodecs—free, no install, no upload, no file size cap. Preview with play/pause, adjust volume, drag the crop area, and export. Processing stays on your device for privacy.
Drag & drop a video to crop
or click anywhere in this area to choose a file
MP4, MOV, MKV, WebM, AVI and more · No file size limit
Processed locally in your browser — files never leave your device. Need batch convert, trim timelines, or GPU-accelerated export? Try the Windows desktop app.
Why Use This Free Online Video Crop?
Crop videos with preview, playback, and local export—the same privacy-first approach as our other online tools.
Visual crop controls
Drag the crop box, resize from corners, and lock aspect ratios for social or cinematic formats.
Privacy-first
Everything runs on your device in the browser—your originals stay private.
Supported Input Formats
Crop popular video formats for social posts, reels, and reframed uploads.
Video inputs
MP4, MOV, MKV, WebM, AVI, MPEG, and other common video files—no fixed size limit.
Shorter clips process faster in the browser.
Video output
Export cropped MP4 (H.264 + AAC) or WebM (VP8/VP9 + Opus). Audio is kept when the source has a sound track.
Output filename includes _cropped (e.g. clip_cropped.mp4).
How to Crop a Video Online in 3 Steps
From full frame to a cropped export—in minutes.
1
Add a video
Drag and drop a clip or click Choose File. One video at a time for precise preview.
2
Adjust crop
Play the preview, set volume, drag the crop box, and pick an aspect ratio preset if needed.
3
Export
Choose MP4 or WebM, click Export Cropped Video, and download when processing completes.
Video Crop FAQ
Answers to common questions about cropping video in your browser.
Is this online video crop free?
Yes. You can crop videos at no cost and without creating an account. Open the page, add a file, adjust the crop area, and export.
Are my files uploaded to your servers?
No. Processing runs locally in your browser. Your files are processed on your device and are not sent to Videoradius servers.
Can I crop MP4 online?
Yes. Add an MP4 (or other supported video), adjust the crop box in the preview, choose an output format, and click Export Cropped Video.
Is audio included in the export?
Yes, if the original has audio. MP4/MOV often copies the AAC track without re-encoding; other formats use AudioEncoder and are muxed with the cropped video.
Does cropping reduce quality?
Cropping re-encodes each frame with WebCodecs. Use a high-quality source and MP4 output for the best results on most platforms.
Is there a file size limit?
No fixed limit. Very large or long videos may take longer or need more RAM depending on your device and browser.
Does this use WebCodecs?
Yes. Export uses the browser WebCodecs VideoEncoder and mp4-muxer / webm-muxer for packaging—no FFmpeg.
Need trim, merge, or batch processing?
For timeline editing, merging clips, and fully offline processing, try the Videoradius Video Converter desktop app for Windows.
Need Pro Video & Audio Tools on Windows?
Videoradius Video Converter supports 300+ formats, audio editing, GPU acceleration, and 100% offline processing.