About the Image Resizer
Resize a photo to exact dimensions for social media, a passport form or your website, or scale it by percentage. You can also convert the format, for example PNG to JPG or WebP to PNG. Everything happens in your browser.
How to use the Image Resizer
- Choose or drop an image (JPG, PNG, WebP, GIF or BMP).
- Enter a new width and height, or pick a percentage.
- Choose the output format and quality.
- Click Download to save your resized image.
Features
- Resize by pixels or percentage
- Lock aspect ratio to avoid stretching
- Convert between JPG, PNG and WebP
- Quality control for JPG and WebP
- Live preview with the new file size
Common image sizes
Instagram posts work well at 1080 x 1080 pixels, Facebook and LinkedIn share images at 1200 x 630, YouTube thumbnails at 1280 x 720, and website hero images usually need no more than 1920 pixels wide.
Converting PNG to JPG
JPG does not support transparency, so transparent areas are filled with white when you convert a PNG to JPG. If you need to keep transparency, choose PNG or WebP as the output format.
Frequently asked questions
How do I resize an image without stretching it?
Keep "Lock aspect ratio" ticked. When you change the width, the height updates automatically to keep the original proportions.
Can I convert WebP to JPG?
Yes. Open your WebP image, choose JPG as the output format and download.
Does resizing reduce quality?
Making an image smaller keeps it sharp. Making it much larger than the original can look blurry because no new detail can be created.
What is the maximum size?
Output images can be up to 10,000 pixels on each side, which is within what all modern browsers can handle.