How it works
- Choose a unit: pixels, cm, inches or percent.
- Type a width, and a height if you need both.
- Drop your images and download the resized copies.
About this tool
Resize photos for a website, a print, or an application form that asks for an exact size. With centimetres or inches, the DPI setting decides how many pixels you get: 10 cm at 300 DPI is 1181 pixels.
With “Keep proportions” on, the image fits inside the width and height you give, so nothing gets stretched. The DPI is also written into JPG and PNG files, so printers and forms read the intended size.
Frequently asked questions
Are my files uploaded to a server?
No. Everything happens inside your browser, on your own device. Your files are never sent anywhere, and the tool keeps working even if you go offline after the page has loaded.
What DPI should I use?
300 DPI for printing photos and documents, and 72–96 DPI for screens. Forms that ask for a size in cm usually expect 300 DPI.
Can I make an image bigger?
Yes, but enlarging can’t add detail that wasn’t there, so a big enlargement will look soft.
Is it free?
Yes, completely free, with no sign-up, no watermark and no daily limit.