Video Cropper

About Video Cropper

Easily crop your videos with our Free Online Video Cropper. This tool runs entirely in your browser, meaning your video files stay private and are never uploaded to a server.

Upload your video, then simply draw a rectangle over the preview to define the area you want to keep. You can move and resize the rectangle precisely using your mouse or touchpad. The tool shows the exact pixel dimensions and position of your crop area. Click 'Crop Video', watch the progress, preview the result, and download your perfectly cropped video.

Features:

• Client-Side Processing: Uses FFmpeg.wasm for secure, in-browser video cropping. Your files stay on your device.
• Interactive Cropping: Draw, move, and resize the cropping rectangle directly on the video preview.
• Real-time Dimensions: See the exact width, height, X, and Y coordinates of your crop area as you adjust it.
• Multiple Video Formats: Supports common video formats like MP4, WEBM, MOV, AVI (browser & FFmpeg support dependent).
• Video Previews: Preview both the original and the cropped video before downloading.
• Progress Tracking: Monitor the cropping process in real-time.
• Easy Download: Get your cropped video file with a single click.
• Easy Sharing: Share the tool using your device's native share options or copy the link.

How to Use:

1. Load Engine: Wait briefly for the cropping engine (FFmpeg) to load.
2. Upload Video: Drag & drop your video file or click "Select Video".
3. Preview & Crop:
   • The video player will load your file.
   • Click and drag on the video preview to draw your initial crop rectangle.
   • Click inside the rectangle and drag to move it.
   • Click and drag the small red squares (handles) on the border to resize the rectangle.
   • The "Crop Area" values below the preview update in real-time.
4. Crop: Click the "Crop Video" button.
5. Wait & Preview: The progress bar shows the status. The cropped video will appear in the "Cropped Video Preview" area below. Errors will be shown in the status area.
6. Download: Click "Download Cropped Video".
7. Share (Optional): Click "Share Tool".

Note: Processing happens in your browser. Larger or longer videos may take more time and use more system resources.

Quick Answer

To crop a video online, upload it here, drag a rectangle over the preview to mark the area you want to keep, click Crop Video, and download the result. The live readout shows the exact pixel width, height and X/Y offset of your selection, so you can match a target aspect ratio precisely — for example a 1080×1080 square for Instagram or a 1080×1920 vertical frame for Reels, TikTok and YouTube Shorts. Cropping removes the parts of the frame outside the rectangle; it does not scale the picture down. Everything runs in your browser with FFmpeg.wasm, so nothing is uploaded and no watermark is added.

Common Use Cases

Reframing landscape footage for vertical platforms

A 16:9 recording can be cropped to a 9:16 rectangle centred on the subject, giving a full-bleed vertical video instead of one with black bars top and bottom.

Removing black bars (letterboxing or pillarboxing)

Video exported at the wrong aspect ratio, or downloaded from an old source, often carries baked-in black borders. Cropping them away restores a clean edge.

Cutting out unwanted objects and bystanders

If a distraction sits near the edge of the frame, cropping it out is faster and cleaner than masking or blurring it.

Trimming screen recordings

Screen captures usually include the taskbar, browser chrome or a second monitor. Cropping to just the application window makes tutorials much easier to follow.

Focusing on the subject

Cropping in tighter acts like a punch-in zoom, which draws attention to a face, a product or a detail without re-shooting.

Frequently Asked Questions

How do I crop a video?

Upload your video, then click and drag on the preview to draw a rectangle around the region you want to keep. Move and resize the rectangle until the width, height, X and Y numbers below the preview are what you want, then click Crop Video and download the result.

What is the difference between cropping and resizing a video?

Cropping removes pixels outside the selected rectangle, so the composition changes and the output has fewer pixels. Resizing keeps the whole frame but scales it to different dimensions. Crop when you want to change what is in the shot or change the aspect ratio; resize when you want the same shot at a different size.

How do I crop a video to a square or to 9:16 for TikTok and Reels?

Watch the width and height readout while you drag. For a square, make width and height equal, for example 1080 by 1080. For a 9:16 vertical frame, use a ratio such as 1080 by 1920. Because you can see the exact pixel values, you can hit the target ratio precisely.

Does cropping reduce video quality?

Cropping itself just discards pixels outside the rectangle, but the remaining frames are re-encoded to MP4, so there is a small generation loss. Cropping a small area out of a large frame also means the result has a lower resolution than the original, which will look softer if you then blow it up to full screen.

Is my video uploaded to a server?

No. Cropping is done by FFmpeg compiled to WebAssembly running in your browser tab. The video never leaves your device.

Is the audio kept when cropping?

Yes. Cropping only affects the picture; the original audio track is carried over unchanged and stays in sync.

Can I crop only part of the video's duration?

No, the crop rectangle applies to the whole clip. To cut the video by time rather than by area, use the Video Splitter to select the segment you want first.

Why do some players complain about odd dimensions?

H.264 works in blocks and expects even numbers of pixels. If a hand-drawn selection produces an odd width or height, nudge the rectangle by one pixel so both values are even.

Related Tools

• Video Splitter — Cut the clip by time instead of by area.
• Rotate Video — Fix the orientation before cropping.
• Video Compressor — Shrink the cropped file for upload.
• Video to Image Extractor — Grab still frames from the cropped clip.
• MP4 to GIF Converter — Turn the cropped clip into an animated GIF.

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