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ZEKILO Studio

Crop Image

Keep just the part of a photo you need, cropped to any area or ratio. Files never leave your device.

No upload · Processed in your browserJPG · PNG · WebP · AVIF25 MB per file (recommended)As of 2026.10.01

Aspect ratio

3:4 is a common ID photo ratio. Picking a ratio places the largest box of that ratio in the center.

How to use Crop Image

  1. 1Drag and drop one photo or pick it with [Choose files]. A crop box covering the whole photo appears in the edit preview
  2. 2Pick an aspect ratio, drag the box to move it or drag a corner or edge to resize it, then press [Start]. You can also type values into the X, Y, Width and Height fields
  3. 3Check the resulting resolution and save with [Download]

The big number on the result card is the resolution of the cropped result. Each result keeps the original name with -cropped added, as in photo-cropped.jpg, and stays in the same format as the original.

You can crop one photo at a time. We recommend up to 25 MB and 40MP on desktop, and 10 MB and 16MP on mobile. Going over the recommendation shows a warning, but you can still continue. Photos over 100 MB or 100MP are not processed.

  • Example 1 · Square (1:1)

    JPG 4000×3000 · 4.0 MB · ratio 1:1

    JPG quality 90 · Measured in Chrome on desktop · test image (synthetic)

    → 3000×3000 · 1.3 MB · cropped from the center (x=500, y=0)

  • Example 2 · Widescreen (16:9)

    JPG 4000×3000 · 4.0 MB · ratio 16:9

    JPG quality 90 · Measured in Chrome on desktop · test image (synthetic)

    → 4000×2250 · 1.3 MB · cropped from the center (x=0, y=375)

  • Example 3 · Portrait photo to 4:3

    JPG shown in portrait (3000×4000) via rotation info · 117 KB · ratio 4:3

    JPG quality 90 · Measured in Chrome on desktop · test image (synthetic)

    → 3000×2250 · 68 KB · saved upright, top stays on top (y=875)

  • Example 4 · Part of a transparent PNG

    PNG 800×600 · 204 KB · Free · X 100, Y 100, Width 200, Height 100

    PNG lossless · Measured in Chrome on desktop · test image (synthetic)

    → 200×100 · 2 KB · transparency kept

Example figures vary by file and device.

Crop Image options explained

Aspect ratio
Sets the shape of the crop box. The default, Free, lets you make the box any shape. Pick 1:1, 4:3, 3:4, 16:9 or 9:16 and the largest box of that ratio is placed in the center of the photo, and the ratio is kept while you resize. The box size is worked out from the width as height = round(width × ratio height ÷ ratio width), and from the height instead if that doesn't fit. 3:4 is a common ID photo ratio, 1:1 suits profile pictures, and 16:9 or 9:16 fits landscape or portrait screens.
Crop box
Drag the box on the photo to move it, or drag a corner or edge handle to resize it. Everything outside the box is dimmed, so you can see what will be cut off. With the box selected, the arrow keys move it 1 px at a time, or 10 px with Shift, so you can position it without a mouse.
X (left), Y (top), Width, Height
Sets the crop area exactly, in pixels of the original photo. Values follow the photo as shown on screen, after its rotation info (EXIF orientation) is applied. Values that fall outside the photo are pulled back inside, and with a ratio selected, the other side follows the ratio. Use these when a form tells you the exact position or size in pixels.

Crop Image: frequently asked questions

Are my photos sent to a server?

No. Cropping happens inside this browser and your files are never sent off your device. To check it yourself, follow the steps on the How it works page.

Does cropping lower the quality?

The cropped part keeps its original resolution and isn't scaled up or down. The result is saved again in the same format as the original, though (JPG quality 90, WebP 90, AVIF 70, PNG lossless). JPG, WebP and AVIF use lossy compression, so saving again can introduce very small differences. PNG keeps its pixels and transparency exactly.

How do I hit the pixel size an ID photo needs?

Crop at 3:4 around the face first, then add the result to Resize Image and scale it to the pixel size the form asks for. This tool only crops; it doesn't make the photo larger or smaller. For passports and other places with editing rules, read their instructions first.

What happens with photos taken in portrait?

The photo's rotation info (EXIF orientation) is applied, so you crop what you see on screen, and the result is saved upright. Cropping a test image shown in portrait (3000×4000) to 4:3 gave 3000×2250, with the top of the photo still at the top.

Is location or other photo info kept?

No. The result is built fresh from the pixels, so EXIF, XMP and IPTC metadata such as GPS location and camera details isn't included. Colors are converted to sRGB, so photos taken in Display P3 may look slightly different.

Can I crop iPhone HEIC photos?

This tool accepts JPG, PNG, WebP and AVIF. Convert HEIC photos to JPG with HEIC to JPG first, then crop them. You can crop one photo at a time.

How do I crop to 1:1 for Instagram or 3:4 for an ID photo?

Choose 1:1 or 3:4 under Aspect ratio and the largest box in that ratio is placed in the middle of the photo. Drag the box onto the face or subject and press Start. The ratios are Free, 1:1, 4:3, 3:4, 16:9 and 9:16, and you can also type the width and height in pixels to match a spec exactly.

How it works · Engine · Notes

  • Processed in: this browser (your device)
  • Engine: MozJPEG (jSquash) (IJG·BSD-3-Clause) · OxiPNG (MIT) · libwebp (BSD-3-Clause) · libavif·libaom (BSD-2-Clause)
  • Cropping runs inside this browser at full resolution, and files are not sent to a server.
  • Coordinates are in original pixels after the EXIF orientation is applied, and results are saved upright.
  • Results are saved in the same format (JPG 90, WebP 90, AVIF 70, PNG lossless) without EXIF, GPS, XMP or IPTC metadata.
  • Colors are saved as sRGB. Display P3 photos may change slightly in color.
  • As of 2026.10.01
  • Changelog: 2026.10.01 First release
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