Aspect Ratio Calculator
Simplify width:height. Works with or without a file.
Aspect Ratio Calculator is its own job in the catalog (utilities): Simplify width:height. Works with or without a file. It is not a copy of the resizer or converter with a new title — the operation is “aspect-calc”.
Controls on this page: Width, Height. Output defaults to the format shown.
Processed in your browser. Files are not uploaded.
Runs locally from the values you type.
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Aspect Ratio Calculator runs in this browser with Canvas. The file is not uploaded to imagecropx. Close the tab and the copy in memory is gone.
What this is not
There is no account and no file locker. If a format cannot be written, the tool says so.
How to use Aspect Ratio Calculator
- Choose a file for Aspect Ratio Calculator. It stays on this device.
- Set the controls for this tool (Width, Height).
- Process, then download. Aspect Ratio Calculator works on one file at a time so the preview stays usable.
Questions about this tool
Does Aspect Ratio Calculator upload my file?
No. Processing is in this browser.
Can I use this on a phone?
Yes, with the same file-size cap (about 25 MB). A large photo is slower on a phone CPU than on a laptop.
Does Aspect Ratio Calculator upload the file?
No. This tool runs in the tab. See Privacy for decoder notes (HEIC, PDF.js worker).
What is the file size cap?
About 25 MB per file. Very large pixel counts are rejected so the tab stays responsive.