Authorized use only. Use this tool solely on systems, tokens, and assets you own or are explicitly permitted to test — credential extraction, signature forging, and unauthorized access are prohibited by our Acceptable Use Policy.

EVM Tools

Arbitrum Developer Tools

The leading Optimistic Rollup by TVL. Same EVM toolchain as Ethereum with dramatically lower gas. Our Contract Reader, Vanity Address Generator, and ABI tools work identically on Arbitrum.

Chain details

Chain ID

42161

Native token

Ether (ETH)

Type

L2

Gas

Gas ~10-100x cheaper than Ethereum L1

RPC endpoint

https://arb1.arbitrum.io/rpc

Block explorer

https://arbiscan.io

Tools for Arbitrum

Every tool below works on Arbitrum and every other EVM chain — read any Arbitrum contract, decode Arbitrum calldata before signing, or convert wei to ETH with exact math. All client-side — keys and payloads never upload.

EVM Contract Reader

Call view functions on any Arbitrum contract via your own RPC

EVM Calldata Decoder

Decode Arbitrum transaction input — function and arguments, before you sign

Transaction Decoder

Break out a signed Arbitrum transaction: sender, gas, fees, calldata

ABI Encoder & Decoder

Encode calldata for Arbitrum contract interactions

Function Selector Calculator

Compute 4-byte selectors for function signatures

EVM Unit Converter

Convert wei, gwei, and ETH with BigInt-exact math

Vanity Address Generator

Generate custom addresses — same key works on Arbitrum and every EVM chain

Address Checksum (EIP-55)

Validate and checksum Arbitrum addresses to catch typos

CREATE2 Address Calculator

Derive deterministic contract addresses before deploying to Arbitrum

EIP-1967 Proxy Slot Checker

Read implementation and admin slots of Arbitrum proxies

Storage Slot Calculator

Compute Solidity storage slots for Arbitrum contract state probes

Uniswap Math Calculator

v2/v3/v4 pool math — amounts out, ticks, sqrtPrice

Uniswap v4 Hook Calculator

Map hook addresses to their permission flags

Keccak-256 Hasher

Hash with the exact algorithm used by the EVM

Multi-Chain Wallet Generator

Generate keys and Arbitrum addresses from one mnemonic

ENS Namehash Calculator

Derive EIP-137 namehash values for ENS names

Solidity to Opcodes

Compile Solidity and inspect the EVM assembly

Popular tokens on Arbitrum

USDC

0xaf88d065e77c8cC2239327C5EDb3A432268e5831

6 dec

ARB

0x912CE59144191C1204E64559FE8253a0e49E6548

18 dec

WETH

0x82aF49447D8a07e3bd95BD0d56f35241523fBab1

18 dec

Other EVM chains

All tools work on every EVM chain — pick yours: