Image Resizer — Resize Images Online Free
Easily scale images by exact pixel width and height or percentage multipliers. Lock your aspect ratio to prevent distortion and batch resize photos right in your browser.
Click to Upload or Drag & Drop Images Here
Batch resizing supported • Paste from clipboard with Ctrl+V
JPG
PNG
WebP
GIF
AVIF
How to Resize Images Online
- Upload Pictures: Select or drop your images into the dropzone. You can upload single photos or an entire batch.
- Set Target Dimensions: Type your target width or height. By default, the aspect ratio lock is enabled to protect your image from being stretched or distorted. Alternatively, select convenient preset scale buttons like 50% or 75%.
- Choose Format & Quality: Select whether you want the output as PNG, JPEG, or modern WebP.
- Download: Click "Download Resized" or grab all resized images in a convenient single .zip file.
Preventing Image Distortion with Aspect Ratio Lock
When changing image width or height, changing one dimension without altering the other proportionally causes visible squishing or stretching. Our resizer keeps the aspect ratio locked by default, automatically calculating the matching height as you modify width, guaranteeing clean, natural proportions.
Frequently Asked Questions
Can I unlock the aspect ratio to stretch the image?
Yes. Click the chain link icon between the width and height inputs to toggle the aspect ratio lock off. You can then specify arbitrary non-proportional dimensions.
Does resizing maintain transparency in PNG images?
Yes. If you choose PNG or WebP as the output format, all alpha channel transparency will be fully preserved in the resized file.