Genealogy website MyHeritage has launched a free, easy-to-use Photo Enhancer tool that uses deep learning technology to turn blurry or faded family photos into sharp snaps in a single click. (You have to sign up for an account)
Here's one of my husband many years ago, chosen because it was the blurriest photo in my collection (not because of the epic hair).
See more: PetaPixel
**Edit** Note that you are only allowed a few free downloads so use your free downloads judiciously. After that you are asked to pay C$269 per year to use the software.