What is image cropping & resizing?
Cropping means cutting out a portion of a photo, while resizing means changing its pixel dimensions to reduce file size. Both are commonly needed for SNS icons, thumbnails, and marketplace listing photos that require a specific size or ratio. This tool combines cropping and resizing in one screen so you can download the result immediately.
How to use it
① Upload an image
Drag and drop a file, click to select one, or paste (Ctrl+V) an image. JPEG, PNG, and WebP are supported.
② Choose a crop area and aspect ratio
Drag the crop box to select the area you want. Besides Free, you can lock the ratio to 1:1, 4:3, 3:4, 16:9, or 9:16 — handy for a square Instagram post or a YouTube thumbnail.
③ Pick an output size and download
Choose a long-side limit from 64px to 4000px and it shrinks automatically. Use Download to save the file, or Copy Image to copy it straight to your clipboard.
What makes this tool different
- Crop and resize together in a single screen
- Lock to 1:1, 4:3, 3:4, 16:9, or 9:16 with one tap
- Your image is never uploaded — everything runs in your browser (Canvas API)
- Output keeps the original format (JPEG is re-encoded at 90% quality)
- Download the file, or copy it straight to the clipboard
Frequently asked questions
What image formats are supported?
JPEG, PNG, and WebP. The output keeps the same format as the input, so a transparent PNG stays transparent.
Is my image uploaded to a server?
No. Cropping and resizing run entirely in your browser (Canvas API), so your image is never sent anywhere.
Is it free?
Your first use is free. After that, it's ¥50 for a bundle of 30 uses.
Does it work on mobile?
Yes. Tap to select an image, then drag the crop box with touch to adjust it.