Image Resizer
Resize any image to exact pixel dimensions, right in your browser.
Resize images without uploading them
This image resizer changes the pixel width and height of any photo directly on your device. The file you choose is decoded, redrawn onto an HTML canvas at the size you ask for and handed straight back to you as a download — nothing is ever sent to a server, so even large or private images stay entirely on your computer.
Keep the proportions or stretch freely
Tick Maintain aspect ratio and the tool works out the matching height (or width) for you, so the picture never looks squashed. Untick it to force an exact width × height. The original and new dimensions are shown side by side so you always know exactly what you are downloading.
How to use the Image Resizer
- Choose an image. Pick any JPG, PNG or WebP file from your device.
- Set the size. Enter the target width and height in pixels.
- Lock the ratio. Keep "Maintain aspect ratio" ticked to avoid distortion.
- Download. Save the resized image — it is generated instantly in your browser.
Frequently asked questions
Does resizing upload my image anywhere?
No. The image is processed entirely in your browser with the Canvas API; it is never uploaded, stored or seen by any server.
Will resizing reduce the quality?
Enlarging past the original size can look soft because there is no extra detail to invent. Shrinking usually stays crisp. For the best result, scale down or keep the aspect ratio locked.
What file format do I get back?
The tool keeps your original format where it can (JPG or WebP) and otherwise saves a PNG, so any transparency is preserved.
Is there a file-size or resolution limit?
The only limit is your device memory, because all the work happens locally. Very large images simply take a moment longer to redraw.