TTooloTooloLocal processing

Image tool

Resize Image

Resize JPEG, PNG, WebP, GIF, AVIF and HEIC images locally in your browser. Set exact pixels or a percentage, optionally keeping the aspect ratio, and keep the original format or convert to JPEG, PNG or WebP.

Drag & drop images here

or

JPEG · PNG · WebP · GIF · AVIF · HEIC +6 more · files stay on your device

Settings

Quick sizes

How to

  1. Drop or select your images — JPEG, PNG, WebP, GIF, BMP, ICO, AVIF and more are read straight away.
  2. Set width/height in pixels or percent, and pick an output format if you want one; results update as you change them.
  3. Download each file from its row, or all of them as one ZIP.

FAQ

Are my images uploaded?
No. Resizing happens entirely in your browser; nothing is sent to any server.
Can I keep the aspect ratio?
Yes — enable “Keep aspect ratio” and only the width is used to scale proportionally.
Which formats can I open?
JPEG, PNG, WebP, GIF, BMP, ICO and AVIF work in every modern browser. HEIC, TIFF, JPEG XL and JPEG 2000 depend on the browser — Safari reads them, Chrome and Firefox mostly do not. A file yours cannot read fails on its own row and the rest of the batch still runs.
What format do I get back?
“Same as input” keeps the original format whenever your browser can write it, and otherwise picks the closest one it can: a HEIC photo becomes JPEG, a GIF or BMP becomes PNG. You can also force JPEG, PNG or WebP.
Is transparency preserved?
Yes, as long as the output format has an alpha channel — PNG and WebP do. Saving to JPEG flattens transparent areas onto white.

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