Metamask will be ideal if you have your private key:
https://metamask.io/Hello everybody...In 2016 I bought 1ETH and sent it to the desktop wallet, too bad the desktop wallet never managed to sync 100%. So, I have a private key, how can I recover my ETH? I mean, could I use the private key on another ETH wallet?
Ttried a while ago with MyEtherWallet but it didn't work.