Crop & Resize Images Instantly
Your image is never uploaded to a server. Cropping and resizing happen directly in your browser, on your device.
Drag your image here
or click to choose a file · JPG, PNG, WebP, GIF
Aspect Ratio
File Info
Output Size
Format
How to Crop and Resize an Image
Drag an image from your computer or phone into the upload area above, or click "Choose File" to select one. Once it loads, drag the corner handles on the crop box to select the region you want, or drag inside the box to move it. Pick a fixed aspect ratio like 1:1 or 16:9 if you need a specific shape, or leave it on "Free" for full control. Under "Output Size", set the exact pixel dimensions you want the final image to be — the width and height default to your crop's own size, and stay linked if "Lock aspect ratio" is checked. Choose PNG for a lossless result, or JPEG/WebP with an adjustable quality slider for a smaller file, then click "Crop & Download".
Privacy and the Advantages of Browser-Based Processing
ZeroCutLab's Image Cropper never uploads your image to a server — the entire crop and resize operation runs locally using your browser's built-in Canvas API. This means private photos, screenshots, or design assets never leave your device, there's no file size limit imposed by a server, and results appear instantly since nothing has to travel over the network. Because there's no server cost, the tool is free to use with no watermark added to your image.
Frequently Asked Questions
Is my image uploaded anywhere?
No. Your image file never leaves your device; cropping and resizing happen locally in your browser.
Which image formats are supported?
You can upload JPG, PNG, WebP, GIF, and BMP files, and export the result as PNG, JPEG, or WebP.
Will resizing make my image blurry?
Enlarging an image beyond its original resolution can introduce some softness, since no new detail is created. Shrinking an image is generally safe and produces a sharp, smaller file.
What's the difference between PNG, JPEG, and WebP?
PNG is lossless and supports transparency, making it ideal for graphics and screenshots, but files are larger. JPEG and WebP use adjustable lossy compression for photos, producing much smaller files — WebP typically achieves better quality at the same file size than JPEG.