Smart Contract Deployer

WHAT IT DOES

Smart Contract Deployer lets you deploy any EVM contract directly from your browser without leaving the app. Paste your compiled contract bytecode, optionally provide the constructor ABI and arguments, and the tool encodes everything for you. It shows a clear review screen with all deployment details: your address, balance, gas price, estimated gas, and estimated cost. When you're ready, click "deploy" and the tool signs and sends the transaction using your connected wallet. The deployment status updates in real-time, showing transaction hash, confirmation progress, and the final deployed contract address. This is essential for developers, auditors, or anyone who needs to deploy contracts quickly and safely.

HOW TO USE

Connect your EVM wallet (required—deployment requires signing). Select the network from the dropdown. In the inputs card, paste your contract bytecode (starting with 0x). Optionally, paste the constructor ABI JSON array and provide constructor arguments as a comma-separated list. You can also manually set a gas limit—if left empty, the tool estimates it automatically. Click "2. review" to see a full breakdown of the deployment details. If everything looks correct, click "deploy" to sign and send the transaction. The results card updates with transaction status and the deployed contract address once confirmed. Use the "clear" button to reset all fields.

TECHNICAL MECHANISM

The tool uses ethers.js v5.7.2 via the BGWallet provider and signer. It first validates the bytecode and parses the ABI if provided. If constructor arguments are supplied, it uses ethers.utils.Interface to encode the deployment data via encodeDeploy(args). The tool then estimates gas using provider.estimateGas({ from: address, data: encodedData }), applies a 20% buffer for safety, and allows manual override. It fetches the current gas price, account balance, and chain ID for the review screen. The deployment transaction is sent via signer.sendTransaction() with the encoded data and gas parameters. The tool waits for confirmation using tx.wait() and extracts the contractAddress from the receipt.

WHAT IT CANNOT SEE

This tool cannot deploy contracts without sufficient ETH balance in the wallet to cover gas costs. It cannot verify the correctness or security of the provided bytecode—you are responsible for auditing your contract. It cannot deploy contracts on non-EVM chains. It cannot estimate gas limits accurately for complex constructors that involve loops or external calls—manual gas limits may be required. It cannot debug failed deployments beyond the revert reason provided by the node. It cannot recover failed deployments or modify gas settings after the transaction is sent. The tool is limited by the connected wallet's signing capabilities and network conditions.

PLEASE NOTE

Works exclusively on EVM-compatible chains: Ethereum Mainnet, Goerli, Sepolia, Polygon, Arbitrum, and Optimism. Solana, Tron, Starknet, SUI, TON, Aptos, Bitcoin, Cosmos, and XRP are not supported. A wallet connection is required to sign the deployment transaction. This is a free developer tool—use it for testing and deployment, but always verify your bytecode and contract logic thoroughly before deploying to mainnet. Gas costs are paid by the connected wallet and are not refundable.