Resize image
Adjust an image's dimensions by entering width and height in pixels or percentage, with the option to keep the aspect ratio so nothing gets distorted. Everything happens in your browser — the file is never sent to a server.
Drag your files here
or click to select
PNG, JPEG, WEBP
How to resize an image in 3 steps
Add the image
Drag the file (JPG, PNG or WEBP) onto the upload area or click to pick it. The original dimensions appear on screen.
Set the new size
Choose px or %, enter the width or height, and keep 'Keep aspect ratio' on so the other value adjusts itself.
Download the result
Click process and download the image at the new size. No copy is kept anywhere.
Why resize an image
Images don't always arrive at the right size: a phone photo may be too large for a profile picture, a banner needs an exact width, or a form requires a specific dimension in pixels. Resizing handles that without needing a heavy editor.
Reducing dimensions also makes the file lighter, which helps with emailing and page loading. And by keeping the aspect ratio, the image doesn't end up stretched or squashed.
Pixels or percentage
Use pixels when you know the exact dimension you need — for example, 800 px wide for a banner or 512 px for an icon. It's the most precise option for specific requirements.
Use percentage when you just want to shrink or enlarge proportionally — 50% to make the image half the size, for example. It's handy when what matters is the proportion, not an exact number.
Keeping the aspect ratio
With 'Keep aspect ratio' on, changing the width automatically adjusts the height (and vice versa), preserving the image's original shape. That's what avoids the stretched-image effect.
If you need exact dimensions that don't follow the original ratio, turn the option off and enter width and height freely — the image will be adjusted to fit exactly that size.
Nothing is uploaded
Resizing happens in the browser, on the image read into your device’s memory.
You choose the output format
The result does not inherit the original file’s format: there is a selector with PNG, JPG and WEBP, and the default is PNG. Resizing a JPG without touching the selector returns a PNG — usually larger than the source photo, because PNG does not compress with loss.
Pick JPG when the result is a photograph and weight matters; PNG when there is text, fine lines or a transparent background. Choosing JPG turns transparent areas white.
Shrinking works; enlarging does not
Reducing discards pixels in a controlled way and the result stays clean. Enlarging is the opposite: there is no detail to recover, because it was never captured — the image just gets bigger and blurrier.
For a profile picture or a cover, always start from the highest-resolution file you have. And if the goal is only to cut weight while keeping the dimensions, compression is the right tool, not this one.
Use cases
- Adjust a photo to profile-picture size
- Make an image the exact width a site requires
- Reduce dimensions for a lighter file
- Prepare an icon or thumbnail at specific pixels
- Shrink a photo proportionally by percentage
Frequently asked questions
Can I use pixels and percentage?
Yes. You choose between px (exact dimension) and % (proportional shrink or enlarge).
Does the image get distorted?
No, if 'Keep aspect ratio' is on: the other value adjusts itself. Turn it off only if you want free dimensions.
What format comes out at the end?
The same as the original image — PNG stays PNG, JPG stays JPG and WEBP stays WEBP.
Does enlarging the image improve quality?
No. Enlarging doesn't create detail that isn't there; the image may look less sharp. Reducing, however, keeps good quality.
General questions about the site
- Is it free?
- Yes — no sign-up, no usage limit and no watermark.
- Does it work on mobile?
- Yes, straight from your Android or iPhone browser.
- Do I need to install anything?
- No. No software, no extensions.
- Is my file sent to a server?
- On tools marked as local, no — the file never leaves your device. Only three tools use a server, and each says so on its own page.
How this works inside, and what the site does not do, is on the About page.