✦ToolMagic

Video Crop Tool

Crop and resize your videos with precision using visual overlays and preset aspect ratios. Everything runs in your browser.

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Drop your video here or click to upload

Supports MP4, WebM, MOV

What is the Video Crop Tool?

ToolMagic's Video Crop Tool is a powerful, free online video editor that lets you crop and resize video content directly in your browser. Whether you need to convert a landscape video to portrait for Instagram Reels or TikTok, create a perfect square crop for social media posts, or remove unwanted edges from a recording, this tool makes it simple with visual crop overlays and real-time preview. It supports popular aspect ratio presets including 16:9 (widescreen), 9:16 (portrait/mobile), 4:3 (classic), and 1:1 (square), plus a freeform mode for custom dimensions. The tool uses the Canvas API and MediaRecorder to process your video entirely in the browser, meaning your files never leave your device. A rule-of-thirds grid overlay helps you compose your crop perfectly, and the before/after comparison mode lets you see exactly what your output will look like before exporting.

How to Crop a Video Online

  1. Upload your video: Drag and drop or click to select a video file. MP4, WebM, and MOV are supported.
  2. Choose aspect ratio: Select from preset ratios (16:9, 9:16, 4:3, 1:1) or use Free mode for custom cropping.
  3. Adjust the crop area: Drag the crop overlay to position it, or use the dimension inputs for precise control.
  4. Preview: Toggle the real-time preview to see only the cropped area. Use the rule of thirds grid for composition.
  5. Export: Click export to process and download your cropped video as a WebM file.

Features

  • Aspect ratio presets: Quick buttons for 16:9, 9:16, 4:3, 1:1, and free-form cropping.
  • Draggable crop overlay: Visual rectangle you can move and resize directly on the video.
  • Rule of thirds grid: Toggle a compositional guide overlay to nail your framing.
  • Real-time preview: See the cropped result live as you adjust the selection.
  • Precise dimension inputs: Enter exact X, Y, width, and height values for pixel-perfect crops.
  • Before/after comparison: Toggle between original and cropped views to verify your selection.
  • 100% private: No server uploads — all processing happens locally in your browser.
  • Export as WebM: High-quality output using the browser's native MediaRecorder API.

Common Use Cases for Video Cropping

Video cropping is essential for social media content creation. Instagram Reels and TikTok require 9:16 portrait videos, while YouTube prefers 16:9 widescreen. Twitter and Facebook posts look best with 1:1 square crops. Beyond social media, cropping is useful for removing watermarks, focusing on a specific area of a screen recording, removing black bars from videos, and reframing compositions. This tool handles all these scenarios without requiring any software installation or technical knowledge. Simply upload, crop, and download — it's that simple.

Frequently Asked Questions

Does cropping reduce video quality?

The output is re-encoded using the browser's MediaRecorder API. While re-encoding can slightly affect quality, the VP9 codec used for WebM output provides excellent quality. The visual content within your crop area is preserved at its original resolution.

Can I crop and trim at the same time?

This tool focuses on cropping. For trimming, use our separate Video Trimmer tool. You can crop first, then trim, or vice versa.

What aspect ratios are available?

We offer 16:9 (widescreen), 9:16 (portrait), 4:3 (classic TV), 1:1 (square), and a Free mode where you can set any custom dimensions.