Note: Moonriver (MOVR) on Kusama is a companion network to Moonbeam and provides a permanently incentivized canary network. New code ships to Moonriver first, where it can be tested and verified under real economic conditions. Once proven, the same code ships to Moonbeam on Polkadot.

The Contract Diff Checker is a tool that lets you compare two smart contract source code files side by side. Any differences between the files will be automatically highlighted.
How to use it:
- Enter two contract addresses and click the Lookup button to load the contract details and their source code.

- If either contract contains multiple source files, each file will be listed with a name and number.
Select the specific source file for each contract you wish to compare, then click the Compare Difference button at the bottom of the page.

- Any differences between the selected source files will be clearly highlighted for easy review.
