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Portfoliotools.

Image

Resize Image

Resize by pixels or percentage, with optional aspect-ratio lock, and crop to a target size. Presets cover the usual social and avatar dimensions.

Runs entirely in your browser

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How it works

  1. 01Drop in an image.
  2. 02Type exact dimensions, or use a preset. Aspect ratio stays locked unless you unlock it.
  3. 03Download the resized PNG.

Questions

Are my files uploaded anywhere?
No. The file is read from your disk by the browser and processed in this tab using JavaScript and WebAssembly. Nothing is transmitted, which you can verify by opening your browser's network panel or by disconnecting from the internet — the tool keeps working.
Can I enlarge a small image?
You can, but it will look soft. Scaling up invents pixels without adding detail — the tool warns you when you go past the original size.
Why is the output PNG?
PNG is lossless, so resizing does not stack a second round of compression artefacts on top of whatever the source already had. Convert afterwards if you need JPG or WebP.
Is there a catch — a limit, a watermark, a sign-up?
None. Because the work happens on your machine rather than a server, there is no per-file cost to recover and therefore nothing to meter. No account, no queue, no watermark.