ABI Decoder
Decode Ethereum transaction calldata into human-readable function calls and parameters. Detect token transfers, approvals, and swaps.
ABI
Calldata
ERC-20
This tool runs entirely in your browser. No data is sent to any server.
How this works
- Decoding EVM Transaction Calldata Read Ethereum transaction calldata to identify which function is being called, what parameters were passed, and whether the transaction does what the UI claims.
- Detecting Token Approval Phishing in Calldata Spot malicious approve(), permit(), and setApprovalForAll() calls before signing. Learn the calldata patterns wallet drainers use to empty wallets in a single signature.
- Reading Smart Contract Calldata Use calldata decoding and selector lookups to spot honeypot contracts before interacting. Identify hidden fees, transfer-blocking logic, and admin backdoors without running the contract.