Gas Optimization
Strategies for reducing transaction costs on Ethereum network.
Gas optimization is a set of techniques for reducing Ethereum transaction costs — especially important for DeFi power users and smart contract developers.
Technical strategies: 1. Wait for low gas periods • Gas is cheapest: Saturday/Sunday morning (UTC) • Gas tracker: GasNow, Etherscan Gas Tracker • Set max gas in MetaMask, wait for price to fall
2. Batch transactions • Multiple operations in one transaction • Multicall — Uniswap and others use for efficiency
3. Use L2 • Same operations 10–100x cheaper on Arbitrum/Optimism/Base
4. EIP-1559 timing • Base fee varies — wait for drop between blocks • Reduce priority fee to minimum (not 0)
5. Token approve optimization • Approve exact amount instead of unlimited approve • Revoke.cash — check and revoke unnecessary approvals
For smart contract developers: