Software to inventory vinyl collection

On a PC you can export your collection. 

I like the discogs idea. It really depends on how long and what you want to do with your list. 

Collectorz 

http://Collectorz.com

I use Excel. 
 

Easy to use. Likely to be readily available in twenty years. You don’t want to get caught in something that goes away.

Discogs. If most of your music has a barcode its even easier.