Start near 80% quality without an exact target. Compare the result, then lower quality only if the file remains too large. Use a target when a destination enforces a strict limit.
Add one image or a batch
Select up to 20 JPG, PNG or WebP files. They are decoded and encoded locally in a Worker where supported, keeping the interface responsive.
Choose quality before dimensions
80% is a useful photo starting point. Small text, line art and interface captures often need more. Compare faces, gradients and edges in the before/after view.
Use targets carefully
Choose 200 KB, 500 KB, 1 MB or 2 MB only when required. The tool searches encoding quality first, then may reduce dimensions and clearly labels that result.
Choose a format
JPG offers broad compatibility. WebP often creates smaller modern files and can preserve transparency. Keep an original because lossy compression cannot be reversed.
Download verified results
Download one completed result or a ZIP. If re-encoding cannot make an already optimized image smaller, the tool reports that rather than presenting a misleading saving.