UMARIX IMAGE TOOLS

โ†”๏ธ Image Resizer

Resize an image by exact pixels, by a percentage of its original size, or from a preset. Keep the aspect ratio locked to avoid stretching, or unlock it when you deliberately want a different shape.

Runs entirely in your browser. No upload, no account, no image stored anywhere.

๐Ÿ“ Drop images here, or choose files

JPEG, PNG, WebP, BMP, GIF. Max 20.00 MB per file, 100 megapixels. One file at a time. Files are processed in your browser only โ€” nothing is uploaded.

Choose images

How to use it

  1. Upload an image and note its original dimensions.
  2. Choose Pixels, Percentage, or Preset, then set the size.
  3. Keep "Preserve aspect ratio" on unless you want to stretch the image.
  4. Download the resized image in JPEG, PNG, or WebP.

Supported formats and limitations

  • Enlarging an image beyond its original size does not add real detail; it may look soft or blurry.
  • Animation is not preserved; only the first frame is used.
  • Converting to JPEG discards transparency โ€” pick PNG or WebP if you need a transparent background.
  • Limits: 20 MB per file, 100 megapixels, batch maximum 10 files where batch is offered.

Frequently asked questions

How do I resize without stretching?

Leave "Preserve aspect ratio" on. Change only the width (or only the height) and the other side is calculated automatically.

Can I resize to an exact size such as 800 ร— 600?

Yes โ€” choose Pixels, turn aspect-ratio preservation off, and enter both values. The image will be stretched or squashed to fit exactly.

Related tools

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