• EasyStackTools189+ Free Tools
  • EVM Tools
  1. Home
  3. EVM Tools

EVM Tools

Free EVM and Solidity utilities: function selectors, Keccak256, ABI encode/decode, EIP-55 checksum addresses, uint256 hex conversion, and Wei/Gwei/ETH units. All run in your browser.

What you can do with these tools

  • Compute Solidity function selectors and event topic0 hashes with Keccak-256
  • Encode and decode ABI calldata for contract calls
  • Validate and checksum Ethereum addresses (EIP-55) before sending funds
  • Convert uint256 hex values and Wei, Gwei, and ETH units with full precision

All tools run locally in your browser. No wallet connection or server upload required.

EVM & Solidity tools

developer tools
Checksum Address Generator

Convert any Ethereum address to EIP-55 checksummed format and verify checksum validity. Free, client-side — ideal for wallets, dApps, and Solidity development.

developer tools
Address Validator

Validate Ethereum addresses fast. Check 0x prefix, length, hex characters, and EIP-55 checksum. Copy normalized lowercase or checksummed output instantly.

developer tools
Keccak256 Hasher

Generate keccak256 hash online instantly. Solidity compatible hashing for Ethereum smart contract development. UTF-8 text and hex input modes.

developer tools
ABI Encoder & Decoder

Encode function calls into ABI format or decode ABI-encoded data back into human-readable form. Essential for Ethereum smart contract development.

developer tools
Event Topic Generator

Generate Ethereum event topic0 by hashing Solidity event signatures with keccak256. Supports direct signature input and ABI JSON parsing.

developer tools
Function Selector Generator

Generate the 4-byte Solidity function selector from a signature or ABI JSON using Keccak-256. Free, instant, client-side — for calldata, debugging, and EVM contract calls.

converters
Hex ↔ Decimal

Convert hex to uint256 decimal and decimal to hex with full 256-bit precision. Decode Ethereum calldata, event logs, and on-chain values in your browser.

converters
Wei ↔ Gwei ↔ ETH

Convert Ethereum token units between Wei, Gwei, and ETH with support for BigInt precision. Perfect for smart contract developers.

All developer toolsAll convertersTool guides