Free ENS Name Lookup Tool

ENS (Ethereum Name Service) maps human-readable names like vitalik.eth to Ethereum wallet addresses.

Yes, enter a 0x Ethereum address for a reverse lookup.

Yes, completely free.

Absolutely. The ENS Name Lookup Tool processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the ENS Name Lookup Tool is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the ENS Name Lookup Tool in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The ENS Name Lookup Tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

Reverse resolution only works when the address owner has explicitly set a primary ENS name in their records, and most wallets never do. Owning a .eth name is not enough on its own: ENS keeps forward resolution (name to address) and reverse resolution (address to name) as two separate settings, and the reverse link must be configured deliberately in the ENS app. So an address can hold several names yet still return nothing on a reverse lookup, which is completely normal rather than an error. It can also mean the name expired or was transferred. If a reverse lookup comes up empty, try a block explorer like Etherscan to confirm the address is active, or ask the owner for their exact name and run a forward lookup instead. Paste either a name or a 0x address above and the tool auto-detects which direction to resolve.

Ethereum transactions are irreversible, so confirming the destination before you send genuinely matters. Type the recipient's .eth name into the tool and run a forward lookup: it returns the exact 0x address that name currently resolves to, plus the display name and avatar if one is set. Compare that address character by character against the one your counterparty gave you, paying attention to the first six and last four characters that wallets usually show. For extra confidence, copy the resolved address with the one-click button and open it on Etherscan to check recent activity, or open the name in the ENS app to review its full record set and expiry. Because results come from the live ENS registry, you are seeing the current on-chain mapping. Enter the name above and verify the address before you confirm any transfer.

Yes. Names ending in .eth are registered on-chain as NFTs and rented annually, not bought forever, so a name can lapse if the owner does not renew it and then be re-registered by someone else. The owner can also change where a name points at any time, updating its address record to a completely different wallet. That means a mapping you verified months ago is not guaranteed to hold today, which is exactly why a fresh lookup matters before every important transaction. A single name can even resolve to different addresses on different networks, though the common case shown here is the main Ethereum mainnet address. To check the current state, enter the name above for a live resolution, then open it in the ENS app to view its expiry date and full ownership history.

Forward resolution turns a human-readable name like vitalik.eth into the 0x address it points to, which is what you need when someone gives you their ENS name and you have to send funds to the actual wallet. Reverse resolution does the opposite: it takes a raw 0x address and finds the single primary ENS name the owner has chosen to associate with it, useful when a wallet or explorer shows only a cryptic hexadecimal string and you want to know who is behind it. The key asymmetry is that forward resolution works whenever a name is registered and configured, but reverse resolution only returns a result if the owner deliberately set a primary name. This tool detects the direction automatically: inputs starting with 0x trigger a reverse lookup, anything else is treated as a forward lookup. Just paste either one above and search.

The avatar is an image the name's owner stored in their ENS records as an avatar text field, so it is set per name rather than generated by this tool. Owners can point that field at a hosted image URL or at an NFT they hold, and the tool simply fetches whatever the live ENS registry returns and displays it next to the resolved name and address. Because it is optional, many names have no avatar at all, in which case the result shows the name and address without a picture, which is normal and not a failure. The avatar reflects the current on-chain record, so if an owner updates or removes it, your next lookup will show the change. Enter a .eth name or 0x address above to see the resolved address, display name, and avatar when one has been configured.