Again, as with text sharpness, it all depends on the quality of the JPG image and how you’re using it. It won't make any difference on a normal display if you convert it to a high-quality JPG ...

JPEG XL is a new, free technology that meets the needs of photographers and anyone who values high-quality images. It ...

Free online JPG to PNG converter launched-convert up to 20 files at once with fast, high-quality results and no registration required.