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Tenderly Dev Toolkit is a browser extension that gives you one-click access to Tenderly’s powerful exploration and debugging tools on any block explorer. Open any transaction in the Tenderly Dashboard to explore, analyze, and debug on-chain data in a human-readable format.
Once you install the extension, you can access Virtual Environments, Debugger, Simulator, Gas Profiler, and other functionalities from a toolbar on any block explorer. Download the extension from the Chrome store here:

Dev Toolkit Browser Extensionn

Using Tenderly Dev Toolkit

Use Tenderly Dev Toolkit in your everyday workflows to speed up on-chain exploration and debugging. Open any transaction in Tenderly to use the following functionalities:
  • Run on Virtual Environment: Execute any transaction in a new Virtual Environment synced with the latest mainnet state to run further tests and experiments.
  • Simulate: Simulate successful or failed transactions with updated inputs, parameters, and contract code to preview their execution and expected outcomes.
  • Debug: Use a trace-by-trace Debugger to identify where and why an error occurred and edit the contract code to try out a fix right away.
  • View trace: Inspect transaction execution using the most detailed, searchable stack trace displaying opcodes, event logs, storage variables, and gas usage.
  • View state changes: Analyze state changes that happened during transaction execution, analyzing events and variables in both decoded and raw format.
  • View gas usage: Get a granular breakdown of gas usage per individual function call and optimize code to save valuable resources.