Image Resizer
Resize to exact pixel dimensions, with an optional aspect ratio lock.
Your result will appear here.
WebP preserves transparency and uses quality adjustment. AVIF is available only if this browser can encode and decode it. PNG is lossless at the chosen dimensions; reaching a target may require smaller dimensions. JPEG fills transparency with your chosen background.
AVIF encoding is unavailable in this browser.
How image resizer works
With the ratio locked, changing one dimension updates the other. Unlock only when stretching is intentional. JPEG output fills transparent areas with your selected background.
A 4,000 × 3,000 image becomes 1,200 × 900 with its proportions preserved.
Using this tool
- Select a supported local file using the picker or drop zone.
- Review the file details and available output settings.
- Process and inspect the output before downloading. Keep your original.
What are the file-processing limits?
Image tools accept JPEG, PNG and WebP up to 20 MiB, 10,000 pixels per side and 24 megapixels. A current browser with Canvas and image decoding support is required. EXIF metadata may be removed from generated images.