Quick Image Converter
Drag in an image or browse (max 20 MB per file). Everything runs in your browser—nothing is uploaded.
See also Symmetry Genius (opens in new tab) BuildUtilities (opens in new tab)
Assets for email: Beautiful Inbox (opens in new tab) Supercharged Email (opens in new tab)
How to use. Drop an image on the zone or click to browse. After it loads, pick output format and any resize/quality options, then download. Clear removes the file and preview—nothing leaves your browser.