Sandbox
Read the real chain.
Practice on the free one.
Two chains, one hard line. The explorer reads BNB Smart Chain mainnet, where real wallets hold real value, and it can only read. Everything that signs runs on BSC testnet: your learner wallet, the faucet, and every transaction you broadcast.
That line exists because your learner wallet keeps its private key in this browser. On a chain with no value that is a teaching tool. On a chain with value it is the exact mistake Freshman spends eleven courses telling you not to make.
What you can do today
Wallet, faucet, send
The full hands-on layer. A learner keypair generated in your browser, sandbox funds from the chain faucet, and real signed transactions you broadcast end to end on BNB Smart Chain Testnet.
Learner wallet
Generate a fresh keypair in your browser. Back it up. Reveal the private key on purpose so you can practice the backup flow.
Sandbox faucet
Drip tBNB to your learner address so you can practice transactions. 24-hour cooldown enforced upstream.
Send a transaction
Build, sign, and broadcast a real on-chain transaction from the learner wallet. Watch it confirm live.