Things I’ve used to create these tools:
https://donjon.bin.sh/pathfinder/
(Seriously thanks. This site has been invaluable for content!)

http://www.d20pfsrd.com/
(Naturally, this site is awesome and you should support the patreon.)

http://paizo.com/
(Of course!)

http://www.seventhsanctum.com/
(For Ship names!)