Resize Images

Resize a photo to a specific width

Drop the photo in, type the width you want, and press Resize. The height fills itself in so the picture keeps its shape.

When a photo arrives, its current dimensions appear in the W and H boxes so you can see what you are starting from. Change either one and the other follows, because the two are linked by the chain icon between them. The four presets cover the common targets: 640 pixels wide for email and documents, 1280 for most web use, 1920 for Full HD, and 3840 for 4K. If you type in the photo's existing size, the button stays off and tells you why, since resizing to the same size would only re-save the file for nothing.

Resize a photo for Instagram, WhatsApp, or exact dimensions like 1080 × 1080

Sometimes the shape matters too: 1080 × 1080 for an Instagram post, 1080 × 1350 for a portrait post, 1080 × 1920 for a story, 500 × 500 for a WhatsApp profile picture, 1200 × 630 for a link preview. Click the chain icon to unlink the two boxes and type both numbers. Be aware of what you are asking for, though. If the shape you type does not match the photo, the photo will be stretched to fit it. A landscape photo forced into a square will look squashed.

The better route for a mismatched shape is to crop first, to the ratio you need, and then resize the result to the exact numbers. The Next step tiles under the Download button take you straight from one tool to the other without downloading in between.

Shrink a whole folder of photos at once

1. Drop the folder in, or add photos one at a time with the + tile.
2. Type a width, or pick a preset, with the chain icon still linked. Every photo keeps its own proportions and fits inside the size you gave.
3. Press Resize all 40 and download the ZIP.

Linked mode works as fit-inside: each image is scaled so that it fits within the width and height you typed, keeping its own ratio. That is what makes it safe for a mixed folder. Portraits and landscapes come out at different sizes, but none of them is distorted. Percent mode is the other way to treat a folder: 50 percent halves every image whatever size it started at, which is handy for a batch of screenshots.

Reduce image resolution without losing sharpness

Making an image smaller in one jump can leave fine detail looking shimmery, particularly text and thin lines. This tool reduces in halving steps instead and finishes with a final step to the exact size, which keeps edges clean. The result is saved in the same format it arrived in, at a high quality setting.

Making an image larger is a different matter. There is no extra detail to add, so it goes soft. You can enlarge here up to 400 percent, but if the point is to go bigger, use Upscale, which sharpens as it goes and has presets for Full HD and 4K.

Frequently asked questions