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Blockchain Tools: Transaction Simulator

Phillip Ho

We’ve added an EOA Transaction Simulator to thirdweb’s collection of free tools!

Provide details about the sender wallet and the contract method to call, and see the precise error that would be returned by the contract call. Successfully simulated calls also return the estimated gas settings for the transaction.

Use Cases

  • Rapidly test behavior with different function arguments.
  • Debug failing contract calls when using the Connect SDK or Engine.
  • Test your contract permissions by simulating calls from different wallet addresses.
A failed simulation prints the error returned from the contract function.
A successful simulation prints estimated transaction details.

Try it out, bookmark the page, and let us know what tools you’d like to see next!