EVM Tools

Cronos Developer Tools

EVM chain from Crypto.com. Standard EVM compatibility — all tools work with Cronos contracts.

Chain details

Chain ID

25

Native token

CRO (CRO)

Type

L1

Gas

Gas paid in CRO, ~6-second block time

RPC endpoint

https://evm.cronos.org

Block explorer

https://cronoscan.com

Tools for Cronos

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

EVM Contract Reader

Call view functions on any Cronos contract via your own RPC

EVM Calldata Decoder

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

Transaction Decoder

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

ABI Encoder & Decoder

Encode calldata for Cronos contract interactions

Function Selector Calculator

Compute 4-byte selectors for function signatures

EVM Unit Converter

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

Vanity Address Generator

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

Address Checksum (EIP-55)

Validate and checksum Cronos addresses to catch typos

CREATE2 Address Calculator

Derive deterministic contract addresses before deploying to Cronos

EIP-1967 Proxy Slot Checker

Read implementation and admin slots of Cronos proxies

Storage Slot Calculator

Compute Solidity storage slots for Cronos 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 Cronos 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 Cronos

USDC

0xc21223249CA28397B4B6541dfFa8C6886dEA1a1A

6 dec

USDT

0x66e428c3f545EF2E11Dfb9dFbb2b96Fbc06a11f7

6 dec

Other EVM chains

All tools work on every EVM chain — pick yours:

About the Cronos

Cronos is the EVM-compatible chain built by Crypto.com, designed for payments, DeFi, and GameFi. It uses the standard EVM instruction set, so every Ethereum tool works natively — the same addresses, the same ABI encoding, the same Keccak-256 hashing.

This page curates Formatho tools that work on Cronos (chain ID 25), with the RPC endpoint pre-configured. Read smart contracts, generate vanity addresses, hash with Keccak-256, and encode ABI calldata — all client-side, which matters when working with CRO and DeFi positions.

How to use

Use the Contract Reader with the Cronos RPC endpoint to call view functions.
Generate a vanity address — the same key works on Cronos and every EVM chain.
Convert between wei and CRO using the EVM Unit Converter.
Compute function selectors and ABI calldata for Cronos smart contracts.

Frequently Asked Questions

What is Cronos chain ID 25? ▾

Chain ID 25 identifies the Cronos mainnet. When configuring wallets, MetaMask, or RPC endpoints, use this ID to connect to Cronos instead of Ethereum (chain ID 1) or other chains.

Do Ethereum tools work on Cronos? ▾

Yes — Cronos is fully EVM-compatible, meaning it uses the same address format, ABI encoding, and smart contract execution model as Ethereum. All Formatho EVM tools work on Cronos without modification.

What is the gas token on Cronos? ▾

CRO is used for gas fees on Cronos. Gas is typically much cheaper than Ethereum mainnet, with transactions costing fractions of a cent.