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Transaction Simulator

Preview what an Ethereum transaction will do before you sign it: decode its intent locally, then optionally simulate it against an RPC you provide to check success, revert reason, and gas. Simulation only runs when you supply an endpoint.

Transaction
Decoded intent local · no network
FunctionPlain ETH transfer (no calldata)
Simulation endpoint opt-in
Privacy: everything above runs locally. Entering an RPC URL and clicking Simulate sends this transaction’s fields to that endpoint — choose one you trust.

Related tools

📦Blockchain Tx Decoder🔬Calldata & EIP-712 Decoder🛡️Approval & Address Risk Checker⛓️Blockchain & Payments Glossary🔍Wallet Address Validator🏛️CBDC Flow Simulator

Standards & Guides

💠x402 Protocol Guide⛓️Blockchain in Payments💰Settlement Guide