Crop Image — Circle, Square, or Freeform, Browser-Side
Crop any image to circle, square, or custom aspect ratio. Free, browser-side, no upload.
Drop your image here
PNG, JPG, or WebP — up to 50 MB
Cropping an image is one of the most common edits — removing unwanted edges, adjusting composition, or reshaping for a specific layout. Unlike a basic rectangle crop found in most simple tools, this tool supports circular crops (ideal for avatars and profile pictures) and center-cropping to standard aspect ratios like 16:9 (widescreen), 4:3 (photo), 1:1 (Instagram square), and 3:2 (classic 35mm film). You can also enter a custom ratio for any layout you need.
All processing happens in your browser. There is no server roundtrip, no upload, and no account. The image is read by the Canvas API, the crop is applied in memory, and the result is re-encoded as PNG (to preserve the transparency needed for circle crops). Your file never leaves your device, making this a private option for sensitive images like ID photos or unreleased creative work.
How to use
Drop your image
Drag a PNG, JPG, or WebP file into the drop zone (up to 50 MB). The image is read locally and never leaves your device.
Choose shape and ratio
Select Circle for a round crop (centered, maximally inscribed circle), or Square for a rectangular crop with a specific aspect ratio (1:1, 4:3, 16:9, 3:2, or custom).
Crop and download
Click Crop to apply. The output is always PNG (to preserve transparency if you crop to a circle). Filename gets a `-converted` suffix.
Frequently asked
What happens to the parts outside the crop?
For circle crops, the area outside the circle becomes transparent. For square/easpect ratio crops, the image is center-cropped to the selected ratio — anything outside the central region is discarded.
What aspect ratios are supported?
1:1 (square), 4:3 (standard photo), 16:9 (widescreen), 3:2 (classic 35mm), and a custom field where you can enter any ratio (e.g. 2.35 for CinemaScope).
Does the output keep transparency?
Yes. Circle crops produce transparent corners. Square crops at the image boundary keep their normal content. Output is always PNG to preserve transparency.
Can I crop a specific region?
Not in v1. The crop is always centered. For freeform or region-specific cropping, use a desktop editor or compose this with other tools.
Are my images uploaded?
No. All processing happens in your browser via the HTML5 Canvas API. The file never leaves your device.
Does cropping reduce file size?
Usually yes, because there are fewer pixels. For a circle crop the dimensions stay the same but large transparent regions compress efficiently in PNG.
Limitations
- Center-crop onlyThe crop is always centered on the image. You cannot select a custom region or pan the crop area in v1.
- No freeform cropThe tool crops to a centered circle or a centered rectangle of a specific ratio. Irregular shapes and free-drawing are not supported.
- Always outputs PNGTo preserve transparency (especially for circle crops), output is always PNG regardless of input format.
Platform notes
- macOS
- Works in Safari, Chrome, and Firefox. Preview.app can crop images but not to a circle or with custom aspect ratios — making this tool a handy complement.
- Windows
- Works in Edge, Chrome, Firefox. MS Paint can crop but only to a single rectangular region without aspect ratio guides.
- Linux
- CLI equivalent for square crop: `convert input.png -gravity center -crop 1:1 output.png`. For circle: `convert input.png \( +clone -threshold 101% -fill white -draw 'circle %[fx:w/2],%[fx:h/2] %[fx:w/2],%[fx:h]' \) -alpha off -compose CopyOpacity -composite output.png`.
- Web
- Runs entirely client-side. No upload, no server roundtrip. Open in any modern browser.