Free Image Resizer Online
APX Resizer is a free online image resizer. Resize a photo to a target file size in KB or MB, to exact pixel dimensions or to centimetres, right in your browser and with no sign-up.
Free. No sign-up. Your files stay in your browser.
How to resize an image online
- Select Open image resizer and choose a JPG, PNG or WEBP photo.
- Pick a mode: Resize by KB / MB, Resize by Pixel or Resize by CM.
- Enter the size you need: a target file size, a width and height, or centimetres with a DPI value.
- Apply the change and download the resized image.
Three ways to resize a photo
Resize by KB or MB
Choose a target file size in KB or MB and save the result as JPG or WEBP. This is useful when an online form or portal limits how large an uploaded photo can be.
Resize by pixel
Set an exact width and height in pixels and export as JPG, PNG or WEBP. The fields start with the dimensions of the photo you selected.
Resize by centimetres
Enter a width and height in centimetres together with a DPI value, then export as JPG or PNG. The tool starts at 3.5 × 4.5 cm, a common photo size, with a default of 96 DPI.
Crop and rotate too
The same page can also crop and rotate images. If your goal is mainly a smaller file, try the image compressor. To change the format, use the image converter.
Private by design
APX Resizer works inside your browser. Your files are processed on your own device and are not uploaded to our servers. Read the privacy policy for details.
Frequently asked questions
How do I resize an image to 100 KB?
Open Resize by KB / MB, choose your image, enter 100, select KB, choose JPG or WEBP and download the result. Very detailed photos may lose some detail at small target sizes.
Will resizing reduce image quality?
Making an image smaller in pixels or in file size removes some data. JPG and WEBP are lossy formats, so quality can drop a little. Keep your original file and check the result before you use it.
Which image formats can I resize?
You can open JPG, PNG and WEBP images. Depending on the mode, the output can be JPG, PNG or WEBP.
Is the image resizer free?
Yes. It is free, with no account or sign-up.
Are my photos uploaded anywhere?
No. The image is processed in your browser on your own device and is not sent to our servers.
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Last updated: November 2026