https://smartbit.com.au works as well I believe.
Edit - I think walletexplorer is case-insensitive, but I may be wrong, it's been a while.
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smartbit works really well, it suggests all the addresses that start with those characters as you type plus, its Australian so Im biased towards it.
per owlcatz's edit, wallet explorer is indeed case INsensitive (just tested it) so you dont need to get the caps right to find the right address. You do need to get the case right to find the address on smartbit.