How to convert Ethereum address to Checksum address

You can convert either an upper or lower case Ethereum address to Checksum address.

Code Example

code:example.js

let lowerCaseAddress = "0x0089d53f703f7e0843953d48133f74ce247184c2"

let upperCaseAddress = "0x0089D53F703F7E0843953D48133F74CE247184C2"

console.log(Web3.utils.toChecksumAddress(lowerCaseAddress))

// => 0x0089d53F703f7E0843953D48133f74cE247184c2

console.log(Web3.utils.toChecksumAddress(upperCaseAddress))

// => 0x0089d53F703f7E0843953D48133f74cE247184c2

Working Demo

Notes

References

Support

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0x0089d53F703f7E0843953D48133f74cE247184c2