Testnet vs mainnet: what is the difference?
- Author
- CRYPTO PORT Editorial
- Published
- Updated
- Reading time
- 4 min
In short
Mainnet is the live blockchain where real assets move; a testnet runs the same machinery with worthless coins so people can experiment. Testnet tokens are handed out free and cannot be cashed in. Confusing the two leads either to experimenting with real money or to being sold tokens that are worth nothing.
Key points
- Mainnet is production, with real assets at stake
- Testnet coins are given away and hold no value
- Your wallet's network selector tells you which you are on
- Testnets can be reset without warning
Definition
Mainnet is the production blockchain where assets with real value are recorded. A testnet is a parallel network running the same software with valueless tokens, used for development and testing.
If developers had to pay real fees for every experiment and lose real funds on every mistake, testing would be impossible. Most networks therefore run a testnet: the same software, but with coins that carry no value. Test coins are handed out free by distribution sites known as faucets.
Ordinary users also use testnets — to walk through a transfer for the first time, or to check that a wallet connects properly. The flow is almost identical to mainnet, so it is a practical way to rehearse everything in an environment where mistakes cost nothing.
Telling them apart is simple: read the network name in your wallet's selector. Because a testnet is a temporary environment for validation, it can be wiped and restarted when the spec changes. Nothing you leave on it is guaranteed to survive.
Watch out for
- · Anyone offering to sell you testnet tokens is running a scam
- · Do not reuse your real seed phrase for a test wallet
- · Working on a testnet does not prove something is safe on mainnet