Your Second Pair of Eyes Before You Send Funds
ScamSonnar checks any wallet or smart contract address for warning signs, so you can spot scams before you send money or connect your wallet.
One free check without an account. Sign in for more scans, history and watchlists.
Built For Anyone Who Wants More Confidence Before Using an Unknown Wallet
Spot Risky Behavior
We look at how a wallet has behaved — unusual transfers, suspicious patterns, and other warning signs.
Activity Monitoring
We check a wallet's activity and history to spot anything unusual.
Pattern Detection
We spot patterns like repeated transfers to the same places, which can be a sign of trouble.
Risk Scoring
We combine everything we find into one simple risk score.
Works Across Networks
Check wallets on Ethereum, BNB Smart Chain, Polygon and more — all in one place.
Extra Peace of Mind
A quick check before you interact with an unknown wallet or contract.
10 Networks, One Check
Paste a wallet or contract address and we detect the network automatically. An EVM address is the same on every EVM network, so we check all seven of them for you.
This scan can't see everything.
Some funds may be held on exchanges, in staking, or in other places that don't show up in a public blockchain scan.
ScamSonnar only reads public blockchain data. We never hold your funds, never ask for your private keys or recovery phrase, and never make transactions for you. Anyone who asks you for those is not us.