seriously guys, use electrum ... its portable, put it on a stick and enjoy.
why would you want to send money via browser over a 3rd party server when you can have direct connection to the network.
webbrowser are somewhat secure but you cant trust a 3rd party server with your keys. period.
Coinbin isn't storing your keys anywhere. As I said, "you can download the website source and run it locally (without internet). You only need an internet connection to push transaction.";
Electrum is still better and safer, but the OP is asking for a wallet similar to MyEtherWallet. And I suggested him one.
I don't think we can rely on coinb.in as anyone with your email and pass can access your wallet there.
That's an easy fix. Don't let anybody get your email and password?