[Ethereum] the tool for address checksum


I have an error from web3:

Unhandled rejection Error: Given address "0x" is not a valid Ethereum address.

My question is if is there any tool that can fix my address (add checksum).

Best Answer

If you prefer a simple web version, check out EthSum:

EthSum Screen Capture

Disclaimer: I'm the author, it's an open source tool.