Resize image without stretching

Preserve proportions and use PNG output to avoid another lossy encoding step.

Edit several images at once

Drop up to 30 images here. Choose the image settings below, then click Process images to apply them to every file. Crops start from the center. PDF files can be combined in the order shown.

Your image never leaves this device

Drop an image here

Preserve proportions and use PNG output to avoid another lossy encoding step.

JPG, PNG, WebP, HEIC, GIF or BMP · up to 40 MB

YOUR DOWNLOAD

Image settings

Changes update the preview automatically. Download when you’re happy with the result.

Width, height & background

Change width and heightOff keeps the selected crop’s pixel dimensions. On lets you enter your own.

Resize by percentage

Enter one dimension to keep the same proportions. Enter both for an exact size.

Width×Heightpx

The other dimension is calculated automatically.

Background / border color#FFFFFF

File size (KB or MB)

Choose whether the downloaded file needs to stay below a maximum size.

No automatic size reduction. Your crop, dimensions, format and quality settings still apply. The final file may be larger or smaller than the original.

Download format

PNG keeps transparency and avoids lossy compression, but can produce larger files.

Waiting for image

Add an image to begin—Your finished file will appear here.

File name

.png

Original stays untouched. Processing happens on this device.

HOW IT WORKS

How to use this tool

Choose an image or a batch of images.
Adjust the preset dimensions, crop or padding. Review the result before saving.
Check the output preview and actual file size, then download. Batch mode applies the chosen settings to each file.

What happens to your image?

Downscaling necessarily removes pixels and upscaling cannot restore missing detail. PNG avoids additional lossy encoding; padding avoids distorting the composition.

Your image is decoded and processed locally in your browser. Selected images and generated files are not sent to an image-processing server.

Can resizing be truly lossless?

Only keeping the original pixels is fully lossless. Resampling changes them. This tool avoids stretching and makes that tradeoff visible.

Supported files and limits

Upload JPG, PNG, WebP, HEIC, GIF or BMP. Files must be at most 40 MB, 12,000 pixels on either side, and 40 megapixels. HEIC is decoded locally on demand. GIF conversion uses its first frame. Animated PNG/WebP and SVG are not supported. Batch processing accepts up to 30 files and 200 MB total.

Converted files do not retain original EXIF metadata or color profiles. You can clear the editor when finished.