What it does
- Resize by exact pixels or by percent
- Keeps the proportions, so photos do not get stretched
- Ready-made sizes for Instagram, YouTube thumbnails, social sharing and icons
- Saves as JPG, PNG or WebP with a quality slider
- Resize many photos at once and download them as a ZIP
How to use it
- Drop your images into the box, or click it to choose them.
- Type a new width or height, or pick a ready-made size. You can also switch to percent.
- Pick the format and quality you want, then press Resize.
- Download each image, or all of them in one ZIP.
What happens when you resize an image?
Your browser redraws the picture at the new size and saves it as a new file. The original stays untouched. Making a picture smaller is safe. Making it much bigger cannot add detail that was never there, so it will look soft.
Smaller dimensions usually mean a smaller file, which helps when a website, form or email limits how big a photo can be. For photos, JPG or WebP at 80 to 90 percent quality keeps them sharp while saving a lot of space. Use PNG when you need sharp edges or a transparent background.
Example
A phone photo is 4000 × 3000 pixels and 4 MB. You want it for a website banner that is 1200 pixels wide. Type 1200 in the width box with the lock on, and the height becomes 900. Save it as JPG at 85 percent and the file drops to a few hundred KB.