How to use
- Select or drop an image; original dimensions fill in automatically.
- Change width or height (ratio locked by default), or use 25%/50%/100%/200% presets.
- Drag the quality slider, pick JPEG/WebP/PNG output, click "Compress & download" for a size comparison.
FAQ
What's the difference between compress and resize?
Resizing changes pixel dimensions (width × height); compression reduces the stored file size. They're often done together: shrink the dimensions first, then apply lossy encoding for a smaller file.
Why is the quality slider disabled for PNG?
PNG is lossless with no quality parameter. When PNG is selected, the slider auto-disables and the output stays at maximum fidelity.
Will enlarging look blurry?
Beyond ~2x, visible quality loss is expected; browser interpolation can only soften it. For upscaling with clarity, consider a dedicated AI super-resolution tool.
About this Image Compress & Resize
This tool merges compression and resizing into one step: the browser's native Canvas resamples the image to your target dimensions, then a JPEG/WebP lossy encoder shrinks the file. With the ratio locked, edit one dimension and the other follows the original proportion. WebP is typically 25%–35% smaller than JPEG at equal quality — the recommended choice; PNG is lossless, ideal for transparency or maximum fidelity (the quality slider auto-disables when PNG is selected).