I’ve been looking around for a good way to manage the spells for my pathfinder character. What I really wanted to see was an application where I could browse and manage my spells on my computer and then use my tablet during the game for quick reference. I could not find any system able to do what I wanted so I started building my own. Below you can see the current iteration, the cross platform functionality has not been added yet, but other than that the application is fully functional!
Check it out here: https://spellbook.tabletop.cloud/