Images
Image Resizer
Resize images precisely for web and social media. Everything stays private in your browser.
About this tool
Resize Images Online
Resize an image to exact width and height values without uploading it. Keeping the aspect ratio locked prevents accidental stretching, while unlocking it lets you create a specific custom shape.
The preview and final file are generated in your browser. Use the new pixel dimensions shown before downloading to verify the result.
Quick guide
How to use Image Resizer
- Choose a JPG, PNG, or WebP image.
- Enter the target width or height and keep aspect ratio locked unless you need a custom shape.
- Create the resized image, preview it, and download the result.
Practical uses
What you can do with it
- Prepare images for website cards
- Match marketplace image dimensions
- Create smaller email attachments
- Resize social images to a required width
Common questions
Image Resizer FAQ
What does lock aspect ratio do?
It keeps the image’s width-to-height relationship unchanged. Editing one dimension automatically calculates the other so the picture does not look stretched or squashed.
Does resizing reduce file size?
Reducing pixel dimensions usually lowers file size, but the final size also depends on format, image detail, transparency, and quality settings.
Can I resize an image without losing quality?
Downsizing generally preserves a clean appearance. Enlarging beyond the original dimensions can look soft or pixelated because the source does not contain additional detail.