GASWORKS

What would this transaction cost under Glamsterdam?

Paste the hash of any Ethereum mainnet transaction. Gasworks reprices its original trace under the pinned Glamsterdam Devnet 8 gas rules and shows a same-path estimate — assuming the execution path stays exactly the same.

Try an example

Simple ETH transfer0x59a8d817…3f55e3 · ±0 gasSmall contract call0x2823d66c…962e9a · +720 gasStorage-heavy call, tight limit0x060414d9…bc878e · replay requiredComplex contract interaction0x2f639ed0…612acf · replay required

How it works

  • Gasworks fetches the transaction, its receipt and the debug_traceTransaction traces from a hosted archive node — it never runs an EVM itself.
  • The normalized trace is repriced under the immutable ruleset glamsterdam-devnet-8-v8.0.0-eels-d681ca4f-r2, covering calldata floors, state creation gas and access repricing.
  • When the new rules could change the execution path (possible out-of-gas, gasleft() branches, new opcode semantics), Gasworks withholds numbers and reports replay required instead of a misleading total.

Glamsterdam is a draft protocol. Estimates reflect the current Devnet 8 rules, not final gas costs. See the methodology for assumptions and limits.