Image Resizer
Resize JPG, PNG and WebP images by width, height, longest side or percent, one or many at a time, with sharp Lanczos resizing in your browser.
Runs in your browser. Nothing you enter is uploaded.
How to use
This tool makes images smaller or larger, one or many at a time, without uploading them anywhere.
- Add images: drop them on the box, choose them, or paste one with Ctrl+V (Cmd+V on a Mac). Up to 50 images or 500 MB at once.
- Choose how to resize under Resize by:
- Longest side fits the long edge to a size, whatever the shape. 1920 px suits full-screen viewing, 1080 px social media.
- Width or Height sets one side; the other follows, so the shape stays the same.
- Fit in a box keeps the whole image inside a width and a height.
- Exact size sets both, or picks a size for Instagram, a Story, a link preview, YouTube or X. A picture of another shape is cropped to fill it (keeping the middle), fitted inside it on white, black or a see-through background, or stretched.
- Percent scales by a percentage.
- Images never get larger unless you turn on Allow making images larger, because enlarging can't add detail.
- Under Save as, keep the original format or pick JPG, PNG or WebP, and set the Quality for JPG and WebP.
- Download each image, or all of them with Download all (.zip).
The tool resizes with the Lanczos method, so fine detail like fabric or text stays sharp instead of turning into stripes, and the result is the same in every browser. Photos stay the right way up. Very large photos are first shrunk while they open, so they fit in your device's memory. New files are named with their size, like photo-1920x1440.jpg, and don't carry over the camera or location data.
Frequently asked questions
Will resizing make my photo blurry?
Making a photo smaller keeps it sharp: the tool averages the detail that no longer fits instead of dropping pixels. Making it larger can't add detail, so enlarged images look softer. That's why enlarging is off unless you turn it on.
What size should images be for a website?
About 1920 pixels on the longest side covers a full-screen image on most displays. Images shown smaller, like in an article column, can be 1200 pixels or less. Smaller images load faster.
Does resizing reduce the file size?
Yes, usually a lot: half the width and height is a quarter of the pixels. To shrink files further without changing the size, use the image compressor.
Related tools
- Image compressor Compress JPG, PNG and WebP images in your browser, or get them under a size such as 100 KB.
- Crop and rotate image Crop an image by dragging or with exact pixel sizes, lock a ratio like 1:1 or 16:9, and rotate or flip it.
- Image converter Convert images between PNG, JPG and WebP in your browser, one or many at a time.
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