A javascript piece of code to create a keypair XRP wallet OFFLINE.
It creates a keypair using ed25519 algorithm.
ed25519 algorithm: seeds have 31 characters (sKdNVBLAmVjgcDrEfDSzTSBqsagHMEd).
Step by step guide to set up the wallet:
Create an empty folder in your desktop and download the 4 files.
Open the HTML file in your browser.
It works for the XRPL Mainnet.
It allows to create a keypair mainnet account (which has to be activated later with XRP). DO IT OFFLINE, it's purely mathematical.
Once you have created it offline that wallet can receive XRP. Warning: if you use this private key to perform a transaction ONLINE, like sending XRP, using a computer which is connected to the internet, then the private key will become compromised so you should create again a new wallet offline and send your XRP there. These wallets are secure just if you don't perform transactions online with the computer where the keypair has been generated.
Demo online just for educational purposes here: https://skunk-proper-smoothly.ngrok-free.app/tools/createKeypairXRPwalletOffline/xrpwallet