local-only

Image Resizer

Resize images by pixels or percentage, keep aspect.

🔒 local memory only
Initializing Image Resizer in local browser environment…

How to use Image Resizer

  1. Upload an image to inspect its original resolution.
  2. Enter target width or height in pixels, or use the percentage slider (e.g. 50%).
  3. Toggle "Lock ratio" to maintain aspect ratio automatically.
  4. Click "Resize & download" to save the scaled image.

Why use this local-first tool?

  • High-quality bicubic canvas image smoothing.
  • Quick one-click presets for 25%, 50%, and 75% downscaling.
  • Choose output format: PNG, JPEG, or WebP.

Frequently Asked Questions

Does resizing degrade image quality?

Downscaling using high-quality image smoothing maintains excellent sharpness while significantly reducing file dimensions and byte weight.

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