is there is a way i han open my electrum wallet online

do you set up electrum staking wallet, Polkadot Staking FAQ

Electrum Personal Servers (EPS) do not perform as well as ElectrumX or Electrs, but are easier to set up and connect to Bitcoin nodes, making them a good choice for those interested in installing private Electrum servers. Compared to fully indexed ElectrumX or Esplora instances, it is less hardware-demanding and therefore can run on normal devices.