Tool
Convert Ethereum addresses to proper EIP-55 checksum format. Prevent transaction errors with mixed-case address encoding.
EIP-55 Standard
Convert addresses to the official Ethereum checksum standard
Batch Processing
Convert multiple addresses at once with batch processing
Error Prevention
Prevent transaction errors with proper checksum validation
Ethereum Checksum Converter
Convert addresses to EIP-55 checksum format
Batch Conversion
About EIP-55 Checksum
EIP-55 uses mixed-case letters to encode a checksum directly in the address. This helps prevent transcription errors and makes addresses self-validating.
The checksum is calculated by taking the Keccak-256 hash of the lowercase address and capitalizing letters whose corresponding hash digit is ≥ 8.
Premium Vanity AddressesReady Now
Get your dream wallet address instantly. No waiting, no mining - just pick and own.
Skip the computational lottery. Our curated collection features ultra-rare addresses with coveted patterns, pre-calculated and ready for immediate delivery.
ZK Generation
Keys encrypted at all times during generation. Zero-knowledge architecture ensures maximum security.
Everything Automated
No human in the loop, nobody touches the keys. Fully automated secure delivery system.
Collector-Grade Rarity
Hand-picked patterns: lucky numbers, word formations, and mathematical sequences.
Burn on Read
0 data retention. Private keys are permanently destroyed after secure delivery.
Why Use EIP-55 Checksum?
Benefits
- Error Detection: Catch typos and transcription errors
- Standard Compliance: Follow Ethereum's official standard
- Wallet Compatibility: Better support in modern wallets
- Developer Trust: Show attention to detail and standards
How It Works
Conversion Examples
Before & After Conversion
0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAedError Detection Example
0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed0x5aAeb6053f3E94C9b9A09f33669435E7Ef1BeAedDeveloper Integration
Using in Smart Contracts
// Solidity example - validating checksum addresses
pragma solidity ^0.8.0;
contract AddressValidator {
function isValidChecksum(address addr) public pure returns (bool) {
// Most wallets and libraries handle this automatically
// But you can implement validation if needed
return addr != address(0);
}
function requireValidAddress(address addr) public pure {
require(addr != address(0), "Invalid address");
// Additional validation logic here
}
}JavaScript Integration
// Using ethers.js for checksum conversion
import { ethers } from 'ethers';
function toChecksumAddress(address) {
try {
return ethers.getAddress(address);
} catch (error) {
throw new Error('Invalid address format');
}
}
// Example usage
const address = '0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed';
const checksummed = toChecksumAddress(address);
// Output: 0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed