Gas Auction Simulator

Block Space Visualization

Visualize how transactions compete for block space in a fee market.

Mempool Visualizer

Simulation: Transactions with higher fees (wider bars) are prioritized by miners.

Understanding Gas Auctions

Ethereum blocks have limited space. When demand exceeds supply, users bid against each other via gas fees to get their transactions included.

Frequently Asked Questions

When many users want to transact at the same time (e.g., during an NFT mint), they outbid each other, driving the base fee up exponentially.