Is Zaragoza safe for solo female travelers?

It depends pretty much on the area you're in, the city centre is quite save as it's normally crowded. Some neighborhoods close to it like La Magdalena or San Pablo can get a bit more dangerous at night (I've never had any problem but it's usual to find drunk people or so). I's always recommendable to be careful, but overall the truth is that Zaragoza is save in general.

it is pretty safe here i would say, ive been here two times and i must say that i didnt have any negative experiences so far my first stay was for 3 months and this time i stayed for a month and my mom lives here in zaragoza

It's pretty safe, there is a lot of police cars goong ground at all times. Some places like delicias or el gancho are more dangerous, especially at night, but mostly Zaragoza is a safe and chill city.

Very safe in most areas, some areas in the outside of zaragoza are not very safe: Delicias, Juslibol and Picarral and some parts of Actur. But is easy to tell when you are there. There isn’t a lot of crime and you can go out without worrying too much

In general it’s a safe city. You only have to pay attention to not enter in certain areas alone at night. However this areas are actually small so if you stay where people is nothing will happens to you