Crop Video Online

Drag to crop video frames. Supports 16:9, 9:16, 4:3, 1:1 presets. Browser-based, no upload required.

Local processing protects your privacy

Video files are never uploaded. All cropping runs locally in your browser, keeping your privacy protected.

Visual crop preview

Drag directly on the video frame to select the crop region. Move or resize the selection in real time — what you see is what you get.

Multiple aspect ratio presets

Built-in presets for 16:9, 9:16, 4:3, 1:1 and more. One click to lock the ratio and drag precisely for any platform.

Video File

Supports MP4, WebM, MOV, and more

Use Cases

  • Crop landscape video to portrait (9:16) for TikTok, Reels, and other short-video platforms.
  • Remove black borders or unwanted background to keep the focus on your subject.
  • Extract a specific region for tutorials, product demos, or content repurposing.
  • Crop 16:9 video to a 1:1 square for Instagram, Facebook feed, and similar platforms.

About this video cropper

VideoKit's online video cropper is powered by WebCodecs and runs entirely in your browser. After uploading, the tool extracts a preview frame so you can drag a crop box directly on the image — free-form or with a preset ratio. Click "Start Cropping" and only the selected region is kept. All processing happens locally; your video never leaves your device.

Frequently Asked Questions

Does cropping affect video quality?

Cropping re-encodes the selected region using high-quality settings, so quality loss is minimal. The output resolution matches the crop area — no stretching or distortion.

Which video formats are supported?

Reads most common video formats (MP4, WebM, MOV, MKV, AVI, and more) and outputs in MP4, WebM, or MOV.

Will my video files be uploaded to a server?

No. All processing happens locally in your browser. Files are never uploaded to any server. Your data stays entirely on your device.

How do I set an exact aspect ratio?

Click a preset button (16:9, 9:16, 4:3, 1:1) before dragging, and the crop box will lock to that ratio. Choose "Free" to drag without any ratio constraint.