Gas Killer
Gas Killer
Secure contracts shouldn't cost more.
Cheaper, safer smart contracts without rewriting them.
Is your protocol overpaying for gas?Find outWhy
Cheaper execution
Up to 99% gas savings, verified by aggregate signature.
Safer contracts
Room for the checks and invariants that gas costs rule out.
Simple integration
No new languages. No rearchitecting your smart contract.
How
Off‑chain execution. On‑chain security.
Operators verifiably simulate transactions off-chain and write back only the essential state changes, compressing expensive computation into a single signature verification on-chain.
Upgrade your contract
Add a single line of Solidity. No new languages, no rearchitecting, no application-specific rewrites.
Redirect to the RPC
Point transactions at the Gas Killer RPC. Execution moves off-chain; only the final state update lands on-chain, verified by an aggregate signature.
If the network is unavailable, transactions fall back to executing on-chain. Gas Killer is never a bottleneck. Operators returning incorrect outputs are rejected and slashed.
Live demo · Sepolia
Watch it run: the Game of Life
One generation of Conway's Game of Life costs 16.6M gas as a normal transaction. Gas Killer settles it for under 1% of that, and runs two generations that no single transaction could hold.
Services
Turn gas savings into composable services.
The surplus Gas Killer creates isn't just a cost reduction. It's programmable economic primitives you can route into your protocol.
Gas Save
Direct cost reduction applied automatically to every transaction.
Gas Rebate
Return a portion of savings to end users, improving retention and loyalty.
Gas Buyback
Channel surplus into protocol token buybacks for constant demand pressure.
Gas Expand
Run transactions that exceed the block gas limit while staying verifiable.
Case study · RAILGUN
Privacy on Ethereum at half the cost.
RAILGUN uses zk-SNARKs for shielded transactions on Ethereum: powerful, but expensive for everyday users. We ran Gas Killer against 400 historical RAILGUN transactions from October 2025.
Average Gas Killer savings for RAILGUN
Shield
Transact
Gas Analyzer
Could your protocol save gas?
Paste a transaction your contract has already processed. The Gas Analyzer replays it and shows what it would have cost through Gas Killer. It's the same analysis we ran for RAILGUN.
- STEP 01
Paste a transaction hash
Any transaction your contract has already processed on Ethereum or Sepolia.
- STEP 02
Replay it
The analyzer traces the transaction and works out the state changes it made.
- STEP 03
See the savings
Original gas next to the Gas Killer cost, so you know if integrating is worth it.
Updates
Follow our progress.
Research, benchmarks and release notes from the Gas Killer team.
Read on Paragraph