JUUD FILE TOOLS한국어
Image tools

Resize an image online

Change image width or height in pixels or percent, use popular presets and preserve the original aspect ratio when needed.

No server upload No signup Up to 30 MB per file

Drag files here

This tool processes one file at a time.

JPG, PNG, WEBP · Up to 30 MB per file
Private browser processing — Your files are processed on your device and are not uploaded to our server.
01

How to resize an image

Set one dimension or enter an exact canvas size.

  1. 1Choose a JPG, PNG or WebP image.
  2. 2Select pixels, percentage or a preset such as 1920×1080 or 1080×1080.
  3. 3Keep aspect ratio locked, or unlock it for exact width and height.
  4. 4Preview the result, resize and download.
02

Dimensions, ratio and output

Pixel dimensions control how much image detail is stored; aspect ratio describes its shape.

JPG, PNG or WebP image
JPG, PNG, WEBP
Resized image in the original format
JPG, PNG, WEBP
  • Unlocking the ratio can stretch or squash the image.
  • Making a small image larger cannot create true new detail.
03

Common resize tasks

Resize when a platform or layout expects specific dimensions.

  • Preparing social images at 1080×1080, 1080×1350 or 1200×628.
  • Downsizing camera photos for a website or email.
  • Creating 1920×1080 or 1280×720 presentation and video assets.
04

Resize once from the best source

Downscaling usually looks clean; substantial enlargement can appear soft.

  • Keep aspect ratio locked unless distortion is intentional.
  • Use the original image for each new target size rather than resizing a previous copy.

Dimensions changed on-device

Image decoding and resizing happen locally in the browser.

  • Very large megapixel images may exceed mobile memory.
  • The source image is never sent to an external resizing API.
FAQ

Frequently asked questions

How do I resize without stretching?

Keep the aspect-ratio lock enabled and change only one dimension.

Can resizing improve a blurry image?

No. Enlarging adds pixels but does not recover missing detail.

Which social presets are included?

Common presets include 1920×1080, 1280×720, 1080×1080, 1080×1350, 1200×628 and 800×800.

Keep going
Crop ImageTrim unwanted edges, choose a common aspect ratio or set a precise crop area with a live browser preview.Image CompressorReduce JPG, PNG and WebP file size with presets, custom quality or a target size. Compare each result before downloading it.Rotate ImageTurn JPG, PNG or WebP images left, right or 180 degrees and correct orientation with a clear preview.