Input
Open JPG/JPEG, PNG, and WebP images. SVG, GIF, and other formats are not accepted.
Image Resizer
Resize JPG/JPEG, PNG, and WebP images to exact pixel dimensions in your browser without uploading them.
Resize settings
JPG, PNG, or WebP up to 10 MiB, 8192 px per side, and 12 MP.
- Original width
- —
- Original height
- —
Resized preview
Choose an image and resize it to display the result.
Get started
- Choose a JPG/JPEG, PNG, or WebP image from your device.
- Enter the target width or height.
- Keep Preserve aspect ratio enabled if the image should not be stretched.
- Choose PNG, JPG, or WebP as the output format.
- Select Resize image, check the preview, and download the result.
What you can do
Set the output dimensions and format while keeping the workflow focused on one image.
- Resize an image to exact whole-number pixel dimensions.
- Preserve its aspect ratio or set width and height independently.
- Choose PNG, JPG, or WebP independently of the input format.
- Inspect the resized bitmap before downloading it.
Supported image formats
Output
Export the resized image as PNG, JPG, or WebP. JPEG places transparent areas on white.
WebP output requires encoding support in the current browser.
Common uses
- Meet an image upload service’s width and height requirements.
- Prepare appropriately sized images for websites.
- Give a set of images consistent pixel dimensions.
- Reduce oversized image dimensions before sharing.
- Prepare images for social or content platforms without relying on fixed platform presets.
Quality, transparency, and metadata
- Resampling can affect visual quality, and enlarging an image cannot recreate detail that is missing from the source.
- PNG and WebP output can retain transparent pixels; JPEG output places transparent areas on white.
- The downloaded image is newly encoded, so embedded metadata such as EXIF information is not carried over.
- If an accepted input contains animation, canvas processing produces a single bitmap frame rather than an animated result.
- Your original file is not changed; the download is a separate resized image.
Technical scope and limitations
- Input files are limited to 10 MiB, 8192 pixels per side, and 12 MP after decoding.
- Output width and height must be positive whole numbers within the same dimension and pixel limits.
- Only JPG/JPEG, PNG, and WebP input is supported.
- WebP export and the practical memory available for resizing depend on the browser and device.
Frequently asked questions
Is my image uploaded?
No. It is read, resized, previewed, and exported entirely in your browser.
Which image formats are supported?
You can open JPG/JPEG, PNG, and WebP and export the result as PNG, JPG, or WebP.
How do I resize without stretching the image?
Leave Preserve aspect ratio enabled. Changing one dimension then updates the other proportionally.
Does resizing reduce image quality?
Resampling can change sharpness, and enlargement cannot add detail that is absent from the original. Lossy JPG or WebP output may also introduce compression changes.
Can I resize a transparent image?
Yes. PNG and WebP output can retain transparency. JPEG cannot, so transparent areas are placed on white.
Does the downloaded image keep EXIF or other metadata?
No. Canvas creates a newly encoded image and does not carry the source file’s embedded metadata into the download.
Does resizing change my original file?
No. The selected file remains unchanged; the downloaded result is a new image.
Why might WebP export be unavailable?
WebP encoding depends on browser support. The tool reports an error if the browser cannot create WebP output.