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How to Bridge to Base

Move assets from Ethereum to Base L2. Multiple bridge options and step-by-step instructions.

BridgingBeginnerEstimated reading time10-15 minutes7 stepsPrerequisites: Assets on Ethereum or Coinbase account, MetaMask
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Quick Overview

1Choose Your Method
2Coinbase Method
3Bridge Method: Connect
4Bridge Method: Select Assets
5Confirm Transaction
6Add Base to MetaMask
7Verify Receipt

Base is Coinbase's Ethereum L2 with extremely low fees. This guide covers all methods to get your assets there.

Why Bridge to Base?

Benefits:
  • Transaction fees under $0.01
  • Coinbase ecosystem integration
  • Growing DeFi ecosystem
  • Same security as Ethereum

Bridge Options Compared

MethodSpeedCostBest For
. . . .. . . -. . .. . . . .
Official Bridge10-15 min$5-15Large amounts
Across1-2 min$2-5Speed
CoinbaseInstantFreeCoinbase users
Relay~1 min$1-3Small amounts

For most users, withdrawing directly from Coinbase to Base is free and instant.

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Step-by-Step Instructions

1

Choose Your Method

Coinbase users: withdraw directly to Base (free). Others: use a bridge.

Tips

  • Coinbase withdrawal is fastest and free
  • Check bridge fees before deciding
2

Coinbase Method

In Coinbase, go to Send, select ETH or USDC, choose Base network, enter your wallet address.

Tips

  • Double-check wallet address
  • Arrives in seconds
3

Bridge Method: Connect

Go to bridge.base.org (official) or across.to, connect your wallet.

Warnings

  • Verify URL before connecting
  • Official: bridge.base.org
4

Bridge Method: Select Assets

Choose token (ETH, USDC) and amount. Review fees and time estimate.

Tips

  • Bridge ETH first for gas on Base
  • Across is faster but may cost more
5

Confirm Transaction

Approve and sign the bridge transaction. Wait for confirmation.

Tips

  • Official bridge: 10-15 minutes
  • Across: 1-2 minutes
6

Add Base to MetaMask

Add Base network to MetaMask if not already configured.

Tips

  • Use chainlist.org for easy setup
  • Chain ID: 8453
  • RPC: mainnet.base.org
7

Verify Receipt

Check your Base balance on basescan.org or in MetaMask.

Tips

  • Refresh wallet if balance not showing
  • Now you can use Base DeFi

Frequently Asked Questions

Related Resources

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