Resize images
Makes new pictures with a new width and height, set in pixels or percent. Up to 20 pictures can be resized together with the same settings. Your pictures are processed only on this device.
- Free
- No upload
- No sign-up
- Works offline
How to use
Press "Choose files" and pick your pictures. You can choose up to 20 at once.
Enter the width and height in pixels, or a percent, or choose a common size.
Press "Resize". Check the preview, then press "Save" to save the new pictures.
Questions
Are my pictures sent anywhere?
No. Reading your pictures and making the new ones both happen on your device. Nothing is sent out after you choose a picture.
What does "Keep the aspect ratio" do?
The picture keeps its shape and fits inside the width and height you enter. For example, a 4:3 photo set to "1,920 × 1,080" becomes 1,440 × 1,080. Without it, the picture gets exactly the width and height you enter, and its shape may change.
Can it make pictures larger?
Yes, up to 4 times the original. A picture made larger can look blurry, so the result says when this happens.
Does the quality drop?
When a picture is made smaller, it is halved step by step and drawn smoothly. JPEG and WebP pictures are made again at a high quality (92%). PNG adds no lossy compression (a 16-bit PNG becomes 8-bit).
What format is saved?
The same format as the original (JPEG stays JPEG, PNG stays PNG). In browsers that cannot save WebP, WebP becomes PNG or JPEG, and GIF and BMP become PNG. The result says when this happens.
Does the location or other hidden information stay?
No. The new pictures have no location, date or device information. They have no orientation information either: the picture itself is saved upright.
What are the saved files called?
They get names with their number and new size, such as "resized-1-1280x960.jpg", because the original file name often includes the date the photo was taken. Two or more pictures are saved together in one ZIP file.
Can I use it on a phone?
Yes. Phone browsers may not be able to make very large pictures (such as photos from recent phones) at their full size. Then the tool makes the picture as large as that device can handle, and shows the old and the new size. Inside apps such as LINE, saving may not work. If so, open the page again in Safari or Chrome.
Limits
- Moving pictures (GIF, moving WebP or PNG) become a still picture of their first frame.
- Photos with a wide range of colors (such as photos from recent phones) are drawn again in the usual range (sRGB), so very bright colors can become a little softer.
- One file can be up to 50 MB, and a picture up to 50 megapixels. HEIC (the photo format of iPhones) works only in browsers that can open it (mainly Safari).
- We cannot protect against things in your own environment, such as browser extensions.