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Unichain: wrap & unwrap ETH

Convert ETH ⇄ WETH 1:1 with the official WETH contract. Use your connected wallet or process a whole list of wallets in one run.

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What is WETH?

WETH is ETH packaged as a standard token. DEX pools, lending markets, NFT marketplaces and many smart contracts can only handle tokens, not the native coin, so they use WETH. The WETH contract holds every deposited ETH and mints exactly the same amount of WETH; unwrapping burns it and returns the ETH. Nothing else is involved — no price, no slippage, no counterparty.

Why use this tool

  • Canonical contracts only — the same WETH address that DEX routers use, verified on-chain.
  • Every transaction is simulated first; the network fee is shown before you sign.
  • “Max” keeps enough ETH for gas, so a wallet is never left unable to move.
  • Bulk mode: wrap or unwrap in many wallets at once (entire balance, a percentage or a fixed amount), keys never leave your browser.
  • No service fee — only network gas.

FAQ

Does wrapping change the value of my ETH?

No. 1 ETH = 1 WETH, always. The contract holds the ETH and gives it back 1:1 when you unwrap.

When do I need WETH?

When a protocol works only with tokens: adding liquidity, some DEX trades, lending, NFT bids or a bot that trades WETH pairs.

How much does it cost?

Only the network fee of one contract call. ChainTx charges nothing for wrapping or unwrapping.

Is bulk mode safe?

Private keys are processed only in your browser tab to sign each wallet’s own transaction and are never sent to our servers. For everyday use, the connected-wallet mode needs no keys at all.