Resize behavior
This tool fits your source image inside the requested dimensions while keeping its aspect ratio for custom sizes.
For exact social canvases, use the Instagram or social media resizer presets.
Resize Image Online
Change image dimensions for forms, websites and sharing while processing the file entirely on your device.
Custom width and heightJPG, PNG or WebP outputQuality controlInstant preview
Image resizer
OriginalOriginal size: -
Choose an image to resize.
ResultResult size: -
Result
Need to resize many images?Use batch image resizing
How it works
- 1Choose an image.
- 2Enter the output width and height.
- 3Resize locally and download the result.
Privacy and limits
- Images are fitted inside the selected dimensions.
- JPG output uses a white background.
- Upscaling can reduce visual sharpness.
- Selected images are processed locally in the browser and are not uploaded for this tool.
Common use cases
- Making images fit upload dimension limits
- Preparing assets for web layout slots
- Reducing pixel dimensions before compression
Format notes
- Downscaling usually improves file size.
- Upscaling can make an image softer.
- JPG output uses a white background for transparent sources.
Original test sample
- Resize a 4032px phone photo to 1200px wide before uploading to a blog.
- For a profile image, compare 800 x 800 JPG and WebP output.
Frequently asked questions
Are my images uploaded?
No. ImgShrink processes selected images in your browser and does not upload them to a server.
Does resizing crop my image?
The default resize workflow fits the image into the selected dimensions. Empty space may be filled when an exact canvas is needed.
Why is an output format unavailable or different?
The browser controls image decoding and export support. Some browsers may not export AVIF or may flatten unsupported transparency.
Source and compatibility notes
This tool works in the browser, so output support depends on what your browser can read and export.
Last checked: 2026-09-07
Notes
- No server-side image processing is used.
- Output format support depends on the browser.
- Animated images and metadata are not treated as guaranteed preserved data.
Related resize tools
All toolsResize multiple images by width and height in your browser. Process a visible queue and download results as files or ZIP.
Resize images for Instagram square, portrait, landscape and story sizes in your browser. No upload required.
Resize images for social media previews, posts and profile graphics in your browser with practical presets.
Compress JPG, PNG, WebP and AVIF images in your browser. Reduce image file size privately with adjustable quality and instant downloads.