About the Resize by Percentage
Resize by Percentage is a free online resize tool from Convertify. Scale images up or down by percentage while automatically preserving the original aspect ratio. Simply upload your file, fine-tune the settings, and download your finished result in seconds — directly from your browser, with no software to install and no account to create.
How to use the Resize by Percentage
- Click the upload box and choose your file, or simply drag and drop it in.
- Adjust the available options to match what you need.
- Click Process File and let Convertify do the work in seconds.
- Download your result instantly — no email, no account, no watermark.
Why use Convertify's Resize by Percentage?
- Free forever — every tool on this site is free to use, with no hidden limits.
- Private by design — your file is processed for this request only and never stored on our servers.
- Fast — results are usually ready in a few seconds, even for larger files.
- No installation — works entirely in your browser, on desktop or mobile.
Frequently Asked Questions
Does resizing by percentage keep my image proportional?
Yes — percentage scaling always preserves the original aspect ratio automatically; there’s no option to stretch width and height independently here.
Can I scale my image up rather than down?
Yes — enter a percentage above 100% to enlarge the image, or below 100% to shrink it.
Will scaling down lose quality?
Some fine detail is naturally lost any time you reduce resolution, but high-quality resampling is used so the result stays sharp at normal viewing sizes.
What’s the difference between this and Resize by Pixels?
This tool scales relative to your image’s current size (e.g. 50%); Resize by Pixels lets you target an exact width/height instead.
Can I apply the same percentage to many images at once?
Not on this tool — use Bulk Image Resizer if you need to process several images together (it resizes to exact pixel dimensions rather than a shared percentage).
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