Token Batch Collection

The reverse of a multisend — consolidating many wallets into a single destination. Checks every balance before sending anything and flags the case that traps people: wallets holding tokens but no native coin cannot pay for their own transfer, so their balance cannot move until gas is sent to them. For native sweeps it deducts the fee from the amount, because sending a full balance always fails. Keys are used in the page and never transmitted. Private keys are used in the page and never transmitted anywhere, but pasting a key into any web page carries real risk — use throwaway wallets and treat any key you paste as compromised afterwards. Wallets holding tokens but no native coin cannot pay for their own transfer and are flagged before you start.