How to use
Drag an image onto the box (or tap it to pick a file). Slide the quality control to choose how aggressively to compress: lower values mean smaller files but more visible loss; values between 0.6 and 0.85 usually give the best size-to-quality balance.
The compressor outputs a JPG copy of your image. This works very well for photos, web banners, and email attachments. Everything is processed locally in your browser — no uploads.