Retracer is a classic TVM transaction tracing tool that provides detailed inspection of transaction execution. It’s useful for:
Understanding complex transaction flows;
Debugging smart contract behavior;
Analyzing gas usage and performance.
Some explorers display links to Retracer on their transaction pages. Otherwise it’s recommended to use a more modern TxTracer tool.Its source code can be found on GitHub.On this screenshot, key elements of its interface are visible:
Transaction details — Sender, contract, amounts, time, LT, fees, and balances;
C5 button — Display action list: complete details of all actions performed during the transaction;
Logs button — Detailed logs for deeper debugging;
List of instructions (on the left) — Steps taken by execution of the contract on TVM;
Stack (on the right) — Stack during execution of current instruction.
