No test account needed — right-click any image on any webpage and select "Clean with Presend" or "Clean & Compress with Presend" from the context menu. A cleaned file downloads automatically to Downloads/presend-cleaned/.

This extension uses plain, unbundled JavaScript (no build step, no minification, no third-party dependencies) — all source files in the submitted package are exactly as authored. Full source is also available at https://github.com/presendapp/presend-extension for reference.

Firefox's background script (firefox/background.js) has direct DOM/canvas access as an event page, so image cleaning happens by redrawing the image onto a blank <canvas> and re-exporting it — this strips all EXIF/GPS metadata by construction, since canvas only ever holds raw pixel data.