Definition
What is Testnet?
A testnet is a blockchain network that mirrors mainnet behaviour but uses valueless tokens, so developers can deploy and test contracts for free.
Every serious chain runs one. Monad's testnet is chain ID 10143 with free MON from a faucet.
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Definition by Adwait Keshari, founder of Monsmith.
See it in practice
Open Monsmith, paste a contract, and watch the audit and profiler explain it.
Open the studio