Image Resizer: Resize Photos for Web and Social Media
Photos from a phone or camera are often far larger than a website, profile or post needs. An Image Resizer changes the size of your picture in seconds, in your browser, with no sign up and no upload.
Why resize images?
- Social media: each platform has its own best size, and a correct size avoids awkward cropping.
- Faster websites: smaller dimensions mean smaller files and quicker pages.
- Email and forms: many services reject very large files.
- Printing and documents: the right size keeps layouts tidy.
Three ways to resize
- By pixels: enter a width and height. Keep the aspect ratio switched on so the picture is not stretched. Change one number and the other follows.
- By percentage: scale the image from 5% to 300%, for example 50% to make it half the size.
- Social and presets: choose a ready-made size such as Instagram post (1080 by 1080), Story or Reel (1080 by 1920), YouTube thumbnail (1280 by 720), X header (1500 by 500) or LinkedIn banner (1584 by 396).
How to use the tool
- Drop an image into the box, or tap to choose one. JPG, PNG and WebP work.
- Pick a resize method and set the size.
- Choose the output format, and adjust the quality for JPEG or WebP.
- Check the preview, which shows the new dimensions and file size.
- Press Download image.
When the shape does not match
If your photo has a different shape than a preset, you decide what happens. Fill and crop edges covers the whole area and trims the sides. Fit inside keeps the whole picture and adds empty space. Stretch forces the exact size but can distort people and objects, so use it with care.
Tips for sharp results
- Start with the largest original you have. Making a small image bigger makes it look soft.
- Keep the aspect ratio on unless you want a different shape.
- Use PNG for logos and screenshots, and JPEG or WebP for photos.
- Keep a copy of the original in case you need a different size later.
- Resize first, then compress, to get the smallest file.
Free and private
Your picture never leaves your device. All the work happens in your browser, so there is no upload, no watermark, no sign up and no login.
Frequently asked questions
What is the largest size I can make? Up to 8000 pixels on each side, which is the limit most browsers can handle.
Will resizing reduce quality? Making an image smaller keeps it sharp. Making it larger can look soft.
Can I resize several images at once? This tool handles one image at a time. For many images, use the Image Compressor to set a maximum width.