File & internet
Image Resizer
Resize an image to exact pixel dimensions locally. Nothing you enter leaves your browser.
The selected file is processed only in this browser. No upload is made.
Your result will appear here.
What this tool does
About the Image Resizer
Resize an image to exact pixel dimensions locally. It is designed for quick file and network calculations without sending the selected file to an application server.
Resizing changes pixel dimensions and re-encodes the image. Enlarging an image cannot restore detail that was not present in the source.
How to use it
- Choose the source file in the workbench.
- Review any output settings shown beside the file control. Then select “Resize image.”
- Inspect the result and download the new file. Keep the original until you have verified the converted copy.
Practical example
Start with a known input
Try this sample input: Width: 800 px Height: 600 px Select “Resize image” and compare the result with the source before using it elsewhere.
What to know about the result
- Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.
Common questions
Using the Image Resizer
Is the Image Resizer free to use?
Yes. FormatCalc's Image Resizer is free to use with no account required.
Is my data private when I use the Image Resizer?
Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.
How do I use the Image Resizer?
Choose or paste your file data, then choose Resize image. The conversion stays on your device.
What should I check before using the result?
Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.