Image Resizer

About this tool

Resizing an image is one of the most common operations in graphic work. Websites require images in specific dimensions for banners, product photos, or avatars. Social networks have fixed sizes: Facebook profile photo 170x170 px, Instagram avatar 110x110 px, Twitter header 1500x500 px. Large images from cameras (20-50 MP) should be reduced before uploading to the web to keep pages fast. The Image Resizer tool lets you set the target width and height in pixels, with an option to preserve the aspect ratio. The output can be saved as JPG, PNG, or WebP at the selected quality. Processing happens in the browser - files are not sent anywhere.

How to use

1. 1Click Select image or drag a file (JPG, PNG, or WebP).
2. 2Check the original image dimensions - they appear below the upload field.
3. 3Enter the target width or height in pixels. When aspect ratio lock is enabled, the second dimension is calculated automatically.
4. 4Choose the output format and set the quality (80-90% is recommended for JPG and WebP).
5. 5Click Resize and download the resulting file.

Specifications and limits

Input: JPG, PNG, WebP - max 25 MB. Output: JPG, PNG, or WebP at the selected dimensions. Dimension range: 1-16384 px for both width and height. Aspect ratio lock: on/off toggle. Quality setting: 1-100% (for JPG and WebP, PNG is lossless). Shows the original dimensions of the loaded image. Browser-based processing - files are not sent to the server.