Image Compressor

For JPEG, quality 75-85% produces files 60-80% smaller than uncompressed with minimal visible difference at normal viewing distances. Below 60%, compression artifacts become noticeable especially around text and high-contrast edges.

It depends on the method. Browser-based re-encoding via Canvas typically strips EXIF data. Some compression tools preserve it. Our tool strips EXIF by default, which is a privacy benefit for shared images.

Lossy compression (JPEG, lossy WebP) permanently removes data based on human visual perception models — smaller files but irreversible. Lossless compression (PNG, lossless WebP) reduces size through mathematical encoding without discarding any data — reversible but larger files.

For web images: JPEG 50% is the practical floor for photographs; text and graphics degrade badly below 70%. For WebP, 60% is the typical floor. Always preview before committing — quality perception varies by image content.

Always resize first, then compress. Compressing a 4000px image and then resizing wastes compression effort. Resize to your target dimensions, then apply compression for optimal results.