Why compress images?
Images are the heaviest part of most web pages, emails and uploads. Compressing a 4 MB photo to 400 KB makes pages load faster, ranks better on Google (Core Web Vitals), and fits attachment limits — usually with no visible quality loss at 70–85%.
Truly private compression
Unlike most online compressors, this one never uploads your file. The image is read and re-encoded by your own browser using the canvas API — ideal for private photos and confidential documents.
Tip: 75% quality is the sweet spot for photos. Text-heavy screenshots keep more detail at 85%+.