Recently, I've been playing a fairly complicated character and wanted an easier way to navigate all the myriad spells available. I had a certain system in mind, and a quickness that wasn't available from the source site. I used an already compiled list maintained in a Google Sheet by Kyle Dixon to export to a TSV, then a couple of lines of JavaScript later, and voila! The perfect web frontend for all my spells.
Check it out here: https://sturlabragason.github.io/spells/
And it's available under an MIT license in the GitHub repo here: https://github.com/sturlabragason/pathfinder_spells