What is it? A free, browser-based EVM gas fee calculator that shows live EIP-1559 gas estimates across Ethereum, BNB Chain, Polygon, and all EVM-compatible networks — no wallet, no sign-up, no tracking. What makes it different? Multi-chain — ETH, BNB, Polygon and all EVM networks in one place EIP-1559 breakdown — shows Base Fee, Max Fee and Priority Fee separately so you understand what you're actually paying No wallet required — works instantly in any browser, no MetaMask, no sign-in.