How to transfer a large amount of photos off of my iphone and onto my computer?

I have 9300 pictures exactly on my iphone and It won't let me sinc the photos or download them to iphoto on my computer because I have too many, they take up all the memory. I really don't want to loose them and I have no idea how to get them off. I don't use Icloud, should I or is there something else I should try because it takes to long to send them individually

Find out the maximum that iPhoto will take, then download them in groups until you are done.

  • Why does my small amount of photos take up so much space? On my iPhone 7, I have only 76 pictures/videos. When I click manage storage, it says that they take up 1.3 gb of space, while my friends have hundreds of photos but when they click manage storage, it only takes up a couple hundred mb. Why do the photos take up so much space on my phone or how can I fix this problem?
  • How do I get pictures off my iPhone and onto my computer? Is there an easy way to transfer photos taken on my iPhone onto my computer? I'm worried that if I click the option to sync the phone with iPhoto, it will just put all those photos on the phone instead of taking pictures off of it.
  • My Iphone photos take up a ridiculous amount of space? My iphone says my photos take up about 500 mb (which isn't necessarily a lot… ), but I only have about 18 photos. Why is this? I deleted over 100 pictures a little bit ago, and that didn't remove much of it. Why is this?
  • If i sync my iPhone to my computer will it take my photos off my phone and put them on the computer? I need to have my phone synced for the app zedge but i don't want my photos to be taken off my phone. There's this bar and on it it says photos, app, ect. And next to it is a little button that says sync. So IIm guessing it will take my photos. But i don't want that to happen but i need to sync my phone. Is there anyway i can do it without having my pictures going on to the computer?