Solidity Debug is a debug adapter of solidity contracts transactions on Ethereum Blockchain for VS Code.
- Install the Solidity Debug extension in VS Code.
 - Put any breakpoint in your .sol files with F9
 - Switch to the debug viewlet and press the gear dropdown.
 - Select the debug environment "Solidity Debug".
 - Press the green 'play' button to start debugging.
 
Sources of this extension could be found https://github.com/webcerebrium/vscode-solidity-debug.git
MIT. Anyone can copy, change, derive further work from this software without any restrictions.