PNG to JPG, JPG to WebP, WebP to PNG, whatever. Drop a pile of images and convert them all at once.
Transparent bits turn white in JPG. Animated GIFs keep the first frame. HEIC only opens in Safari.
QUESTIONS NOBODY ASKED ยท ANSWERED ANYWAY
No. Conversion happens in your browser with the Canvas API.
JPG has no transparency, so see-through pixels are filled with white.
Only what your browser can open. Safari reads HEIC, most others do not. GIFs keep their first frame only.