Connect your wallet
Choose a signing method and the network you want to work on.
The app needs to know which account you are closing and how you want to approve each transaction. You choose both on the first screen.
Pick the network first
The network selector sits in the top right of every page and offers TESTNET and MAINNET. Your choice is remembered in your browser.
A fresh visit starts on the network the deployment was built with. On demolisher.app that is testnet, so you can look around before anything touches real funds.
Switching to mainnet opens a confirmation dialog titled Switch to Mainnet?. Tick the acknowledgement, then select Switch to Mainnet. Switching back to testnet applies immediately with no dialog.
Changing the network disconnects the wallet you have connected. A connected account belongs to one network, so the app tears the session down rather than carrying it across. Connect again after the switch.
Choose how you sign
Connect a wallet
Select Connect wallet to open the wallet picker. It lists Albedo, Freighter, Fordefi, Rabet, xBull, LOBSTR, Hana Wallet, Klever Wallet, OneKey Wallet, Bitget Wallet, and Cactus Link, plus Ledger for hardware signing.
WalletConnect appears as well when the deployment sets a WalletConnect project id, which lets mobile wallets connect by QR code.
Wallets you do not have installed stay in the list with an install link, so the picker always looks the same.
Your wallet keeps your secret key. The app receives your public address, builds each transaction, and hands it to your wallet to sign. You approve every prompt in the wallet itself.
Use a hardware wallet
Ledger is always in the picker and signs over WebUSB. Connect the device, unlock it, and open the Stellar app on it before you select Ledger.
Paste a secret key
If you have no wallet installed, open Advanced: paste a secret key on the connect
screen and enter a key starting with S.
The key stays in your browser's memory. It is never written to disk, never sent to any server, and never copied to your clipboard. A fresh keypair is built for each signing call, so the key material lives for the length of one operation.
A wallet is safer. Anyone who has your secret key controls the account and can move everything in it. Only paste a key on a device you trust, with nobody able to see your screen.
Create a demo account
On testnet the connect screen also offers Try it on a demo account, which builds a funded practice account for you. See Try it on testnet.
What the app can see
Connecting shares your public address. That is enough to read your account from the network and build a plan. The app never receives your secret key on the wallet path, and never transmits it on the secret-key path.
Next
Once you are connected, go to Close an account.