How to sign a message?!

[Coiningking]

Is there an alternative I can use to sign a message since coinbase doesn't let you?

All previous transactions were on coinbase..

[_act_]

Is there an alternative I can use to sign a message since coinbase doesn't let you?

All previous transactions were on coinbase..

You can not sign a message on an exchange or custodial wallet. Also you can not sign a message with an address that an exchange or custodial will generate you.

Are you talking about the Coinbase noncustodial wallet? Import the seed phrase on Electrum, Sparrow or Bluewallet wallet and sign the message from any of the wallet.

[Financisto]

OP maybe you should add this to your tutorial thread: 

BitcoinMessageTools: https://bitcoinmessage.tools

GitHub: https://github.com/shadowy-pycoder/BitcoinMessageTools

GitHub (CLI): https://github.com/shadowy-pycoder/bitcoin_message_tool

[LTU_btc]

OP maybe you should add this to your tutorial thread: 

BitcoinMessageTools: https://bitcoinmessage.tools

GitHub: https://github.com/shadowy-pycoder/BitcoinMessageTools

GitHub (CLI): https://github.com/shadowy-pycoder/bitcoin_message_tool

This thread was last updated back in 2018 and OP isn't active on Bitcointalk for several years already. It would be good to check outdated information, fix images and add new stuff, but it won't happen, unless someone will make new version of topic