Resize Image
Resize JPG, PNG, WEBP and GIF images online — by exact pixels or percentage, with aspect-ratio lock and batch support. Free, fast and 100% private in your browser.
or drop JPG, PNG, WEBP or GIF images here
Processed in your browser — your images never leave your device.
More tools
Need an image at an exact size for a profile picture, a thumbnail, or a print? oMyImage's Resize Image tool lets you set precise pixel dimensions or scale by percentage, with an aspect-ratio lock so nothing looks stretched. Resize a single image or a whole batch at once, choose your output format, and download. Everything runs in your browser, so your images stay private.
How to resize an image
- 1
Upload
Select one or many images, or drag and drop them into the workspace.
- 2
Set the size
Resize by exact pixels or by percentage, and keep the aspect ratio to avoid stretching.
- 3
Resize & download
Click Resize — one image downloads directly, several download together as a ZIP.
Resize Image features
Pixels or percentage
Set an exact width and height, or scale every image by a percentage of its original size.
Lock aspect ratio
Keep proportions so images never look stretched — each file in a batch keeps its own ratio.
Private & instant
Resizing runs entirely in your browser with HTML canvas — your images are never uploaded.
Security & privacy
Your images stay private. Resizing happens entirely in your browser with HTML canvas — nothing is uploaded to a server. No storage, no tracking of your files.
Frequently asked questions
Can I resize without losing the aspect ratio?
Yes. Keep ‘Keep aspect ratio’ on and each image scales to fit your width/height box without distortion.
Can I resize many images to the same size?
Yes. Set the dimensions or percentage once and it applies to the whole batch; files download together as a ZIP.
Will resizing reduce quality?
Making images smaller stays sharp. Enlarging beyond the original can look soft, since there's no new detail to add.
Which formats are supported?
JPG, PNG, WEBP, GIF and BMP as input; export to JPG, PNG or WEBP (or keep the original format).
Is it free and private?
Yes. No sign-up or watermark, and every image is resized locally in your browser.