Easiest Way to Multisell Cases and Crates on Steam

If you only want the short version for cases and crates:

1. On Steam, set profile and inventory to Public.
2. Open the game on Steam Bulk Sell — CS2 for cases, TF2 or PUBG for crates and keys, or whatever you play.
3. Paste your public profile URL and load. Your multisell items show up. You can search for items manually if you want — most people just use the profile URL.
4. Select the cases or crates you want, open the multisell link, and finish on the Steam Market.

Only commodity cases and crates work this way. You don’t need a browser extension.