Educational demo. Ledgerline Lab is a classroom simulation of double-entry bookkeeping. It is not a bank, holds no real money, and all balances are play figures.
Learn how a ledger balances
A teaching sandbox: open a practice account, move play money to a classmate by email, and read the receipt behind every number. No real funds are ever involved.
Start the simulationSee double-entry in action
Every practice transfer writes a debit and a matching credit in one database transaction, so you can watch the books stay balanced.
Play money only
Simulated accounts open at zero and are topped up with test funds. Nothing here connects to a real bank, card, or payment network.
A receipt for every movement
Open any entry in your history to inspect the amount, both parties, the note, and the reference — the way a real ledger records it.