An EVM-compatible zk-rollup Layer 2 testnet by Cronos (Chain ID 240) using zkTCRO gas, delivering low fees, fast finality, and Crypto.com ecosystem access.
Cronos zkEVM Testnet is a public Ethereum Layer-2 testing network that uses zero-knowledge proofs and the EVM for bytecode-level equivalence, with zkTCRO as the native gas token. It lets developers safely deploy and debug Solidity/Vyper smart contracts, dApps, DeFi, NFTs, gaming, and cross-chain bridge workflows before mainnet. Teams can benchmark live performance via the testnet explorer, including average gas cost (in zkTCRO), block speed, TPS, and user activity, to compare against other L2s.
It combines zkEVM equivalence (seamless Ethereum tooling and bytecode) with Cronos ecosystem integration, using zkTCRO for fees and supporting familiar wallets, RPC endpoints, faucets, and bridges. As a ZK-rollup anchored to Ethereum, it targets fast finality and low fees suitable for consumer-scale dApps while inheriting L1 security. Key performance metrics—average gas price, block time, TPS, and active addresses—are transparently published on the testnet explorer; on testnet they are faucet-funded (effectively near-zero cost) and optimized for high-throughput testing relative to L1 Ethereum.
Cronos zkEVM Testnet uses zkTCRO as the gas token for transaction fees. You can obtain zkTCRO by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).
To bridge zkTCRO to Cronos zkEVM Testnet, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Cronos zkEVM Testnet as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Cronos zkEVM Testnet you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.
To add Cronos zkEVM Testnet to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.
To send zkTCRO on Cronos zkEVM Testnet, ensure your wallet is connected to the Cronos zkEVM Testnet network, enter the recipient's address, specify the amount of zkTCRO to send, review the gas fee, and confirm the transaction in your wallet.