Path of Diablo players can use Runify to display all runes in their character's inventory with a little extra.
For players using Diablo 2: Lord of Destruction's mod Path of Diablo, this nifty extension can (while on your character's inventory via the PoD website) list all of your runes and sums up any value you have on hand. Prices can be adjusted as the market changes. It also has a tool that shows you what happens if you upgrade all your runes up. Useful for mules that have over a hundred mid runes, because it's satisfying to see what compiling all runes ends up giving you.