Metadata readers

[detoam]

Is there some software or maybe another way that I can read metadata? I have a lot of digital family pictures and videos, but can't remember when they were taken. Since the family is no longer around no one can help me to date them. Some I can guesstimate, but most are a total blank to me. My understanding is that metadata can tell me when the pictures were taken.
In case You are wondering I do have a nasty head injury and that is why lot of things in my past are total blur.
Thanks.