Adding Arbitrum to MetaMask is a simple process that unlocks fast, low-cost Ethereum transactions through one of the most popular layer-2 scaling solutions. Whether you're exploring decentralized finance (DeFi), trading NFTs, or using dApps, connecting your MetaMask wallet to Arbitrum enhances your Web3 experience with improved speed and reduced gas fees—while maintaining Ethereum-level security.
This guide walks you through everything you need to know about Arbitrum, how to safely set up MetaMask, and the step-by-step process for adding the Arbitrum One network. We'll also cover common questions and tips for getting started on this high-performance blockchain.
What Is Arbitrum?
Arbitrum is a layer-2 (L2) scaling solution built by Offchain Labs to improve Ethereum’s scalability and transaction efficiency. By processing transactions off the main Ethereum chain (layer-1) and submitting proofs back to it, Arbitrum significantly reduces network congestion and gas costs—without compromising security.
It’s fully compatible with the Ethereum Virtual Machine (EVM), meaning developers can deploy existing smart contracts on Arbitrum without modifications. This seamless integration makes it easy for users and dApp creators alike to migrate from Ethereum while enjoying faster confirmations and lower fees.
Popular use cases on Arbitrum include:
- Yield farming and liquidity provision in DeFi protocols
- Low-cost NFT minting and trading
- Cross-chain bridges and asset transfers
- Decentralized exchanges (DEXs) like Uniswap and SushiSwap
With growing adoption across the crypto ecosystem, connecting your wallet to Arbitrum opens access to a thriving network of decentralized applications.
👉 Discover how easy it is to start using EVM-compatible networks like Arbitrum today.
How to Set Up MetaMask Wallet
Before adding Arbitrum, you’ll need a MetaMask wallet. MetaMask is a non-custodial cryptocurrency wallet available as a browser extension (Chrome, Firefox, Brave) and mobile app (iOS and Android). It allows direct interaction with Ethereum and EVM-compatible blockchains.
Follow these steps to install and configure MetaMask securely:
- Download from the official website
Visit the legitimate MetaMask site and download the extension or app. Avoid third-party links to prevent phishing risks. - Create or import a wallet
Choose “Create a new wallet” if starting fresh, or “Import wallet” if restoring with a seed phrase. - Accept usage data preferences
You can opt in or out of anonymous data sharing—this has no impact on wallet functionality. - Set a strong password
This password protects access on your device but isn’t a substitute for your seed phrase. - Back up your seed phrase securely
Write down the 12-word recovery phrase in order. Never store it digitally or share it with anyone. - Verify your seed phrase
Re-enter the words in the correct sequence to confirm backup accuracy. - Complete setup
Click “Got it!” and finish installation.
Once done, your wallet will default to the Ethereum Mainnet. Now you're ready to add Arbitrum.
How to Add Arbitrum One to MetaMask
You can add Arbitrum One in two ways: automatically via Chainlist or manually by entering network details.
Option 1: Add Arbitrum Automatically (Recommended)
Chainlist is a trusted tool that connects safely with MetaMask and auto-fills network settings for EVM chains.
- Go to chainlist.org
- Connect your MetaMask wallet when prompted
- Search for "Arbitrum One"
- Click “Add to MetaMask”
- Confirm the network addition in the popup window
Your wallet will now switch to the Arbitrum network automatically.
Option 2: Add Arbitrum Manually
If you prefer full control, input the network parameters manually:
- Open MetaMask and click the network dropdown (e.g., "Ethereum Mainnet")
- Select "Add network", then choose "Add a network manually"
Enter the following details:
- Network Name: Arbitrum One
- New RPC URL:
https://arb1.arbitrum.io/rpc - Chain ID:
42161 - Currency Symbol: ETH
- Block Explorer URL:
https://arbiscan.io
- Click "Save"
MetaMask will validate and add the network. You can now switch between Ethereum and Arbitrum with one click.
👉 Learn how to manage multiple EVM networks seamlessly in your wallet interface.
Using DeFi, NFTs, and DApps on Arbitrum
Now that your MetaMask is connected to Arbitrum, you can interact with a wide range of decentralized applications:
- DeFi platforms: Provide liquidity on Camelot or swap tokens on Trader Joe.
- NFT marketplaces: Mint or trade digital collectibles with minimal fees.
- Cross-chain bridges: Transfer assets from Ethereum using official bridges like Arbitrum Bridge or third-party options such as Hop Protocol.
⚠️ Important: You’ll need ETH on Arbitrum to pay transaction fees (gas). You cannot use Ethereum-mainnet ETH directly. Use an Arbitrum bridge to transfer funds from layer-1 to layer-2.
Once bridged, you can explore dApps with faster confirmations and lower costs—ideal for active traders and frequent users.
Frequently Asked Questions (FAQ)
Can I use other EVM chains with MetaMask?
Yes! MetaMask supports all EVM-compatible networks, including Polygon, BNB Smart Chain, Avalanche, Optimism, and more. The process for adding them is nearly identical to adding Arbitrum.
Do I need a new wallet for Arbitrum?
No. Your existing MetaMask wallet works across all EVM networks. Only the active network changes—you retain full control over your keys and assets.
Why can’t I see my tokens after switching to Arbitrum?
Tokens aren’t automatically visible unless added manually or detected by the platform. Use the “Import Tokens” feature in MetaMask or visit a DEX like Uniswap on Arbitrum to detect balances.
How do I get ETH on Arbitrum?
Use an official bridge like Arbitrum Bridge to transfer ETH from Ethereum mainnet. The process takes about 5–7 minutes (with fast bridge options available).
Is Arbitrum secure?
Yes. Arbitrum inherits Ethereum’s security model through fraud proofs and periodic state commits to layer-1. While withdrawals take ~7 days under standard conditions, most users rely on faster third-party bridges.
Can I remove Arbitrum from MetaMask?
Yes. In MetaMask, go to Settings > Networks > Connected Networks, find Arbitrum One, and click “Remove Network.” This doesn’t affect your funds—just hides the network.
Final Thoughts
Connecting Arbitrum to MetaMask is a quick and powerful way to scale your Web3 journey beyond Ethereum’s limitations. With lower fees, faster transactions, and full compatibility with thousands of dApps, Arbitrum delivers a next-generation blockchain experience.
Whether you're diving into DeFi yield opportunities or collecting NFTs affordably, setting up Arbitrum expands what's possible in decentralized finance and digital ownership.
MetaMask’s flexibility makes it easy to manage multiple EVM networks—from Arbitrum to Polygon and beyond—all within one intuitive interface.
👉 Explore the future of multi-chain interoperability and elevate your crypto experience now.
By mastering how to add and use networks like Arbitrum, you position yourself at the forefront of blockchain innovation—securely, efficiently, and with full control over your digital assets.