- Tools
- Resize image
Resize image
Resize by exact pixels or by percentage — one image or hundreds at once.
- Processed on your device
- Unlimited files
- No watermark
Guide
How to resize images online for free
To resize an image, open Aimg's Resize tool, add your images, enter a width and/or height in pixels (or choose a percentage), and click Resize. Aspect ratio is kept automatically and everything happens on your device.
- Add the images you want to resize.
- Enter a width and height in pixels, or pick a percentage.
- Click Resize and download the results.
FAQ
Frequently asked questions
Will resizing keep my aspect ratio?
Yes, with "Keep aspect ratio" on, each image fits inside the box you set without stretching.
Can I resize many images at once?
Yes. Add as many images as you like — they are all resized with the same settings and can be downloaded as one ZIP.
Does Aimg enlarge small images?
Not by default. "Don't enlarge if smaller" prevents blurry upscaling; use the Upscale tool to enlarge with sharpening.
Is Resize image on Aimg free?
Yes — completely free with no limits, no sign-up and no watermark. Your images are processed in your browser and never uploaded.