Image Cropper · Complete guide

How to use the Image Cropper

Crop photos to exact aspect ratios in your browser. Great for Instagram, TikTok, YouTube and marketplace listings.

What does the Image Cropper do?

Crop photos to exact aspect ratios in your browser. Great for Instagram, TikTok, YouTube and marketplace listings.

It's part of the MagicBG toolbox— a suite of free, browser-based utilities that never upload your files anywhere.

Why use this tool?

  • Fit any platform's required frame
  • Reframe cluttered shots to focus on the subject
  • Skip installing a photo editor

How it works

  1. 1

    Upload an image.

  2. 2

    Pick a preset ratio (1:1, 4:5, 16:9…) or drag freely.

  3. 3

    Download the cropped image at full quality.

Features

  • One-click social aspect ratios
  • Free-form cropping supported
  • Preserves original resolution
  • Runs entirely offline after page load

Best use cases

  • Instagram feed (4:5) and Reels (9:16)
  • YouTube thumbnails (16:9)
  • Etsy listing hero (1:1)

Pro tips for the best results

  • Follow the rule of thirds when placing the subject.
  • Crop tighter for thumbnails — mobile screens are small.
  • Export as PNG when transparency matters, JPG otherwise.

Frequently asked questions

Does cropping reduce quality?

No — cropping only removes pixels around the edges. The remaining pixels are untouched.

Ready to try the image cropper?

Free, private, no signup. Runs in your browser — your files never leave your device.

Open the image cropper

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