. . . If you want to go from bitcoin core to blockchain.info (a move i would strongly discourage), you'd need to export your private keys from core . . . Afterwards, you can import your private key(s) into blockchain.info: . . .
Or, you could just use Bitcoin Core to send the bitcoins to your new address in blockchain.info.
Based on OP's previous thread, it seems they do not want to download the complete blockchain.
Hello everyone, i have quite a problem, i sent bitoins from an online wallet to Bitcore but the thing is that my bitcore isn't setup and i can't set it up since i need to clear more than 80GB of space. So my bitcoins desapread from my online wallet but i can't receive them on Bitcore.
I would apriciate it very much if someone found a solution
OP, might I suggest instead of going back to a web wallet, give SPV based wallets a try, Electrum for example, which doesn't require you downloading the full blockchain. It is still much safer than any web wallets.