Image Resizer: Resize Images Online by Pixel and File Size
Need an image at an exact width, or under a strict file size limit? The image resizer below does both in your browser. Set the width and height, keep the proportions locked so nothing stretches, and if you need it under a size cap, type the target and the tool squeezes the file to fit. Nothing gets uploaded, so it’s safe for any photo.
Image resizer: set the size you need
Drop in an image, type the new width or height, and download the result. Lock aspect ratio is on by default so the picture keeps its shape.
How to use the image resizer
Three steps and you’re done:
- Add your image. Click the box or drag a file in. The resizer fills in the current width and height automatically.
- Set the new size. Type a width or a height. With lock aspect ratio on, the other number updates itself so the image keeps its shape. Turn the lock off only if you want to force an exact width and height and don’t mind some stretching.
- Export and download. The preview and new file size update live. Hit the button to save.
If you also need the file under a size limit, type a number in the target file size box and pick KB or MB. The image resizer then lowers the quality step by step until the file lands at or under your target.
Resize by pixels or by file size
Most tools only resize by pixels. This image resizer handles both jobs, because people need both.
- Resize by pixels when a form, a theme, or a platform asks for an exact width, like a 1200-pixel-wide blog image or a 400-pixel profile photo.
- Resize to a file size when an upload form caps you, like a job portal that wants a photo under 200 KB or a form that rejects anything over 1 MB.
Lock aspect ratio matters in both cases. A stretched photo looks wrong straight away, so keep the lock on unless you have a specific reason to force exact dimensions.
Common size targets people need
- Passport and form photos often need a set pixel size and a file under 100 to 200 KB.
- Blog and website images usually work best around 1200 pixels wide and under 200 KB.
- Social profile pictures are commonly 400 by 400 pixels.
- Email attachments go through faster when each image sits under 1 MB.
The image resizer handles all of these. Set the pixels, set the target size if there is one, and export.
Frequently asked questions
How do I resize an image to an exact size?
Add your image, type the width or height you need, and the resizer updates the other side to keep the shape. For an exact width and height regardless of shape, turn off lock aspect ratio. Then export and download.
Can I resize an image to a specific file size like 200 KB?
Yes. Type 200 in the target file size box and choose KB. The image resizer lowers the quality until the file lands at or under 200 KB, then shows you the final size before you download. This works for JPG and WebP, not PNG.
Does resizing reduce image quality?
Making an image smaller in pixels keeps it sharp. Enlarging it past its original size makes it blurry, since there’s no extra detail to add. Using the target file size option lowers quality a little to hit the size, but you control how far.
Is my image uploaded anywhere?
No. The image resizer runs entirely in your browser. Your file stays on your device and is never sent to a server, so you can resize private photos, ID images, or client work safely.
Why can’t I hit a target size with a PNG?
PNG is lossless and has no quality dial to turn down, so it can’t be squeezed to a target the way JPG or WebP can. To hit a size target, resize to fewer pixels, or convert the image to JPG first and then set the target.
