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Resize Image

Resize by pixel, percent, or preset.

100% private Runs locally No sign-up

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Heavy libraries load on demand so the page shell stays fast.

About Resize Image

Resize Image changes pixel dimensions in the browser for web, email, and social specs. Keep originals private while producing the exact width/height your CMS or marketplace requires.

How to use Resize Image

  1. 1Drop the image to resize.
  2. 2Enter target width/height or pick a constrained mode.
  3. 3Apply resize locally.
  4. 4Download and verify dimensions in your upload form.

Frequently asked questions

Upscaling quality?

Enlarging soft images cannot invent detail. Prefer shooting larger and downscaling.

Keep aspect ratio?

Lock aspect ratio unless you intentionally crop via Crop Image first.

Resize vs social resizer tools?

Generic Resize Image is flexible. Instagram/Facebook resizers apply preset dimensions for those networks.

Does resize compress?

Changing dimensions often reduces file size, but use Compress Image when size limits remain.

Batch resize?

Process multiple files as the UI allows. Identical dimensions help catalog consistency.

Why Toolncy
  • 100% free — no premium tier
  • Files never uploaded to a server
  • Works on desktop and mobile
  • No account or email required
  • Fast local processing in your browser

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