💰 Gas Optimization: Save Money on Transactions
Discover techniques to reduce gas consumption in your smart contracts
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Small optimizations can lead to massive savings. Let's explore practical strategies to minimize your gas costs.
📊 Interactive: Batch Transaction Savings
See how batching multiple operations saves gas compared to individual transactions:
8 Proven Optimization Strategies
Gas fees are lowest during off-peak hours (weekends, late nights UTC). Avoid peak times (9am-5pm EST weekdays).
Combine multiple transactions into one. Many wallets and dApps support batching (e.g., Gnosis Safe, multicall contracts).
1 batched transfer: ~200,000 gas
Savings: 69% less gas!
L2s like Arbitrum, Optimism, and zkSync offer 10-100x cheaper transactions while maintaining Ethereum security.
Don't overpay by setting gas limits too high. Most wallets suggest accurate limits. Add 10-20% buffer for safety.
Set limit: 75,000 (15% buffer)
Unused gas refunded automatically
Some tokens use more gas than others. ERC-20 is standard, but gas-optimized tokens can save 20-30% per transfer.
Use gas trackers to time your transactions. Popular tools: Etherscan Gas Tracker, GasNow, Blocknative Gas Estimator.
Gas tokens like GST2 let you store cheap gas and redeem it during expensive periods. Requires planning and capital.
For developers: use events over storage, pack variables, minimize SLOAD operations, and use immutable/constant when possible.
Memory operation: ~3 gas
Use memory when data isn't persistent
🏆 Real-World Success Story
A DeFi protocol reduced user costs by 72% by implementing batched transactions and optimizing storage patterns: