Shrink JPG, PNG and WebP file size with a quality slider — locally, instantly.
Oversized photos slow down websites, emails and uploads of every kind. Pick a quality level, compress instantly and download the lighter file — processed on your device only.
Depends on content and quality setting — typically 50–90% lighter at 80% quality for photos.
Slightly, in a controlled way: you set the quality slider. At 80–90% the difference is invisible for most uses.
JPG, PNG and WebP — output as JPG or WebP for the best size reduction.
No — compression runs locally with the Canvas API.