Free Online Image Resizer

Image Resizer

Quickly resize an image to a target width or height. The aspect ratio is preserved by default to avoid distortion. Ideal for social media, blog thumbnails, or fitting images inside specific layouts.

📁 Tap or drop an image here

Width (px)

Height (px)

Keep aspect ratio

How to use

Pick a photo and enter the width or height you need. With the lock option enabled, the other dimension follows automatically so the image keeps its proportions. Disable the lock to stretch the image to a specific frame (rarely a good idea).

Common targets: 1080 for Instagram square, 1280 for blog header thumbnails, 1920 for full-HD wallpapers. The resized image is saved as a JPG to keep the file lightweight.