Crop Images Online
Crop JPG, PNG and WebP images visually in your browser. Choose a free or fixed aspect ratio, adjust the crop precisely, and download the result without uploading your image.
What this tool does
NexKit Crop Image lets you crop one supported JPG, PNG, or static WebP image visually in your browser. You can drag the crop area, resize handles, choose a free or fixed aspect ratio, or enter exact X, Y, width, and height values.
This MVP is intentionally single-file. Each image needs its own visual crop decision, so batch crop and ZIP download are not part of this release.
How to crop images
Open the Crop Image page, choose one JPG, PNG, or static WebP file, and adjust the crop area. Use Free for independent width and height changes, Original to keep the source ratio, or a common preset such as 1:1, 4:3, 16:9, or 9:16.
Use Reset to return to the full image, Center to keep the crop size and center it, or Maximize to fit the largest crop for the current aspect ratio. After cropping, download the single output file or adjust the crop and run it again.
Precision controls
The crop rectangle is stored in natural image pixels after browser decoding and orientation handling. The visual editor maps those natural pixels to the displayed preview, so resizing the browser window does not change the real crop coordinates.
The X, Y, width, and height inputs use whole pixel values. Invalid, negative, infinite, or out-of-bounds values are rejected before Canvas processing starts.
Supported formats
This release accepts JPG, PNG, and static WebP images. GIF, SVG, HEIC, HEIF, AVIF, TIFF, BMP, unknown formats, animated WebP preservation, format conversion, image resize, and AI crop are not part of this tool.
Output keeps the source format. JPEG stays JPEG, PNG stays PNG, and WebP stays WebP. PNG and WebP transparency is preserved through the browser Canvas workflow when the source image has alpha.
Privacy and local processing
Images are cropped locally in your browser for this tool. NexKit does not upload selected images to a server, store image blobs in browser storage, or send file contents to a cloud crop service for this workflow.
Canvas re-encoding usually does not preserve original EXIF, GPS, or ICC metadata. Crop Image is not a metadata preservation or metadata removal workflow.
Frequently Asked Questions
Are images uploaded?
No. Crop Image processes supported images locally in your browser. The selected file is not uploaded to NexKit servers by this tool.
Which formats are supported?
This tool supports JPG, PNG, and static WebP images. GIF, SVG, HEIC, AVIF, TIFF, BMP, and unknown formats are rejected.
Can I choose a custom crop area?
Yes. You can drag the crop area, resize handles, or enter exact X, Y, width, and height pixel values.
Which aspect ratios are available?
The MVP includes Free, Original, 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, and 2:3.
Does cropping change the image format?
No. The cropped output keeps the original format: JPEG stays JPEG, PNG stays PNG, and WebP stays WebP.
Is PNG transparency preserved?
Yes. PNG and WebP alpha is preserved when the source image has transparency and the browser Canvas workflow supports it.
Does cropping preserve metadata?
Canvas re-encoding usually does not preserve original EXIF, GPS, or ICC metadata. Crop Image does not guarantee metadata preservation.
Can I crop multiple images at once?
No. This MVP supports one image at a time because each image needs an independent visual crop area.
Why did the cropped file become larger?
The browser re-encodes the cropped pixels. Depending on format, quality, and image content, the output can be smaller, larger, or about the same size.
Can I adjust the crop after processing?
Yes. Use Adjust crop to clear the old output, keep the selected image and crop area, and crop again.