Resize & Crop
Visually resize or crop your images with interactive handles.
Drop an image here to resize or crop
PNG, JPG, WebP supported
Resize and crop workflow
Resize images to exact pixel dimensions or crop to a specific area using a visual editor. Supports aspect ratio locking and exports to PNG, JPG, or WebP.
How to use this tool
- Select the mode: Resize to scale the image to specific dimensions, or Crop to cut out a portion of the image.
- In Resize mode, enter the target width and height. Enable "Lock aspect ratio" to scale proportionally without distortion.
- In Crop mode, drag the crop handles to define the area you want to keep. Use aspect ratio presets for common dimensions.
- Upload your image. A live preview updates immediately with your settings.
- Choose the output format (PNG, JPG, or WebP) and quality.
- Download the resized or cropped result.
Best-practice tips
- Always lock the aspect ratio when resizing for web use unless you specifically need a fixed canvas size.
- For Retina and high-DPI displays, create images at 2× the CSS display size — a 400px wide container should receive an 800px wide image.
- Use the crop tool to remove unwanted edges, improve composition, or meet a platform's required aspect ratio (e.g. 16:9 for video thumbnails, 1:1 for profile photos).
- For responsive image delivery, resize to multiple widths and use the HTML srcset attribute to serve the appropriate size to each device.
- Resizing does not change the format — use the <a href="/convert">Format Converter</a> if you also need to change the file type.
Privacy note
ImageLab processes files locally in your browser. Files are not uploaded to our servers, which is useful for sensitive screenshots, internal product images, and personal photos.
Common questions
Does resizing reduce image quality?
Resizing always involves resampling, which can slightly soften an image when scaling down. The tool uses high-quality bicubic resampling via the Canvas API. Choosing PNG output preserves quality losslessly after the resize. If you choose JPG or WebP, apply a quality setting of 85–92% to minimize compression artifacts.
What is the difference between Resize and Crop?
Resize scales the entire image to new dimensions. The whole image is kept, just at a different pixel size. Crop cuts out a rectangular region of the original image without scaling — the cropped area becomes the new image at its original pixel dimensions.
Can I resize multiple images to the same dimensions at once?
Use the Batch Processing tool, which includes a resize operation. Drop multiple files and apply the same target dimensions to all of them in one step.
What happens if I resize to dimensions that have a different aspect ratio?
Without aspect ratio lock, the image is stretched to fill the new dimensions, which may distort it. With aspect ratio lock enabled, the image is scaled proportionally and cropped or padded as needed to fit the target dimensions.