Picasa
Was my favourite! Unfortunately no longer available.
iPhoto
Now called Apple Photos
Photoshop
From Adobe, I have this and keep trying to learn but find it complicated. It definitely is at the peak of photo editing though. Lightroom is a more simple version, more designed to organise photos but can also do some editing. https://www.adobe.com/
Canva
A new tool that shows a lot of promise. It’s created as a graphic image tool but can also be used for some basic photo edits. https://www.canva.com/
GIMP
Free open source editor. Haven’t tried this myself: https://www.gimp.org/
Google Photos
Can do basic edits. https://www.google.com/photos/about/
What’s your favourite photo editing tool?
Zestee 