Resize Image
Scale image width and height using HTML5 Canvas. Set exact pixel dimensions or scale by percentage presets with locked aspect ratios.
Click to select image or drag and drop here
Resize pixel width and height with real-time aspect ratio lock.
How to use Resize Image
- Select an image file from your device.
- Enter target width or height in pixels, or choose a percentage preset.
- Toggle Aspect Ratio Lock to preserve natural proportions.
- Download the resized image.
About Resize Image
Change an image's width and height in pixels, or scale it by 25, 50, or 75 percent. Keep the aspect ratio locked so nothing looks stretched, check the new size and file weight, and download the resized image in its original format.
Related tools: Compress Image, Convert Image, Crop & Rotate Image, Image to Base64
Resizing without distortion
With Lock aspect ratio on, changing the width updates the height automatically, and the other way round, so the image keeps its proportions. Turn the lock off only when you need an exact size and do not mind stretching, or crop first with the Crop & Rotate tool.
Making an image smaller works well. Making it larger than the original adds no detail; the result looks softer, so start from the biggest version you have.
Common target sizes
Blog and website images rarely need to be wider than 1600 to 2000 pixels. Email images are usually 600 to 1200 pixels wide. Profile pictures are often 400 × 400. Shrinking a 4000-pixel phone photo to 1600 pixels typically cuts the file size by around 80%.
Common uses
- Website images
- Scale photos to the width your layout actually displays.
- Profile pictures
- Resize headshots to the square size a platform asks for.
- Email newsletters
- Make images fit email layouts and load quickly.
- Form uploads
- Meet maximum dimension requirements for applications and listings.
Questions about Resize Image
- Does resizing maintain image proportions?
- Yes. The aspect ratio lock calculates proportional height when width changes, and vice versa.
- What format is the resized image saved in?
- The same format you uploaded. To change format, use the Image Converter afterwards.
- Is my photo uploaded?
- No. Resizing happens in your browser and the file never leaves your device.
- Can I make an image bigger?
- Yes, but enlarging cannot add detail, so the result looks softer. Start from the largest original you have.
- What does the percentage preset do?
- It scales both width and height by that percentage, so 50% turns 2000 × 1000 into 1000 × 500.
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