Image Resizer
Resize images to exact dimensions or by percentage. Supports JPG, PNG, and WebP. All processing happens in your browser.
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Image Resizing Tips
Resizing images is one of the most common image optimization tasks. Properly sized images load faster, use less bandwidth, and look better across different devices.
Best Practices
- Always downscale from a larger source rather than upscale
- Use WebP format for the best quality-to-size ratio
- For photos, JPEG at 80-90% quality offers great file size savings
- For graphics with transparency, use PNG
- Match your image dimensions to the display size on your website
Frequently Asked Questions
Reducing dimensions (downscaling) generally preserves quality well. Upscaling can introduce blur or pixelation because the tool cannot create detail that does not exist. For best results, start with the highest resolution source image.