- Private: files never leave your device
- Free, no sign-up
- Fast, works offline once loaded
How to use Image Resizer
- Drop one or more images into the box.
- Choose pixels or percentage, type the new width or height and keep "Lock aspect ratio" on to avoid stretching.
- Pick a format and quality, then download.
About this tool
Resize photos for websites, email, social media and print in a few clicks. Set an exact width or height in pixels, or scale by percentage, and the image keeps its proportions unless you unlock the ratio.
It handles whole folders: add many pictures and they are all resized with the same settings, then zipped for download. Output as JPG, PNG or WebP with a quality slider to control file size.
Resizing is done locally in your browser using high-quality resampling, so results stay sharp and your files stay private.
Frequently asked questions
How do I resize an image without losing quality?
Make the image smaller rather than larger, keep the aspect ratio locked and export at a high quality. Enlarging always loses sharpness.
How do I resize an image to a specific size in pixels?
Choose Pixels, enter the width (or height) and download. With the ratio locked the other side is calculated for you.
Can I resize many images at once?
Yes. Add them all and download the results as a ZIP.
What is the best size for web images?
Most websites need 1200 to 1920 pixels wide at most. Anything larger just slows pages down.
Is Image Resizer really free?
Yes. You can use Image Resizer as often as you like with no sign-up, no watermark and no daily limit.
Are my images uploaded to a server?
No. Image Resizer runs entirely in your web browser, so your files stay on your own device and are never sent to DEWANARO or anyone else.