Image Resizer vs Image Compressor

Image Resize changes the actual pixel dimensions (e.g. 4000×3000 → 800×600). Image Compressor keeps dimensions the same but reduces data per pixel through compression, losing some visual information to save bytes.

Use resize when an image is physically too large for its use — a 6000px photo on a blog, or a banner that needs to fit a slot. Use compress when dimensions are correct but the file is too heavy for fast loading, especially for photos where subtle quality loss is invisible.

Best practice: resize first to target dimensions, then compress to squeeze out remaining bytes. This two-step approach ensures correctly sized, fast-loading images without unnecessary quality loss.