These are the "big players." You enter your card info, they offer you a price, and once verified, they send money via PayPal, ACH, or check.
Balance under $5.00.
If you have a high balance (e.g., $50 or $100), your best bet is a third-party exchange site. You won’t get the full 100% value, but you can usually net of the card's worth. can you trade in best buy gift cards for cash