The MetaMask Bridge is a tool within MetaMask that allows users to seamlessly transfer crypto assets across different blockchain networks, such as Ethereum, Binance Smart Chain, and Polygon. It aggregates quotes from multiple bridge providers to offer optimal rates, ensuring fast, secure, and cost-effective transactions. Users can view transparent fee estimates, choose the best provider, and complete transactions directly within their MetaMask wallet. This makes it a convenient solution for navigating the complexities of multi-chain asset transfers.
Summary
The MetaMask Bridge feature aggregates quotes from different bridge providers to give you the best rate when moving your crypto assets between networks. It streamlines the bridging process through an intuitive interface within your MetaMask wallet.
MetaMask vets the bridges they work with for security and only displays safe options. The bridge also provides transparency into fees, timing estimates, and risks for each transfer. This allows you to bridge tokens like ETH and stablecoins between networks like Ethereum mainnet, Polygon, Optimism, and more.
Recent Upgrades
Recent upgrades allow the MetaMask Bridge to swap to different token types when bridging between networks. For example, you can now bridge ETH on Ethereum and receive MATIC on Polygon in one seamless transfer. Support for multi-hop bridging is also in development, enabling bridging through multiple networks to access various destinations.
What is a MetaMask Bridge?
A blockchain bridge serves as the digital link that allows tokens to be seamlessly transferred between separate networks. For example, you might want to bridge some ETH or stablecoins from Ethereum Mainnet over to Polygon to access DeFi opportunities unique to that network.
The bridge platform essentially performs a swap – you send your crypto assets to a contract address on the source network, and the bridge guarantees that your wallet receives the equivalent value as native tokens on the destination chain. So, your funds retain the same value as they traverse blockchains.
The process works via a mechanism called cryptographic proof. When you initiate the bridge transfer, you must sign approval with your wallet’s private key. This digital signature is mathematically verified to prove you own the funds in transit, allowing the bridge to release equivalent tokens to your address on the other network.

Where Can I Find the MetaMask Bridge?
Accessing the MetaMask blockchain bridge is simple. You can use the dedicated Bridge page within the MetaMask Portfolio app, available at portfolio.metamask.io/bridge, after connecting your wallet.
The other entry point is directly through the MetaMask browser extension. Click on the prominent Bridge button on the extension homepage to get started.
From either interface, you can easily shift crypto assets between the growing roster of layer 1 and 2 networks now bridged by MetaMask.
How the MetaMask Bridge Works
The MetaMask Bridge is accessed through the Portfolio section of MetaMask or the “Bridge” button in the browser extension. Once connected, you simply:
Select Networks and Tokens
- Choose the source network and token type & amount you want to bridge from
- Choose the destination network and token you want to receive

Review Bridge Quotes
- We aggregate quotes from multiple bridge providers
- You can view fees, timing estimates, and risks for each quote
- Our algorithm automatically recommends the best quote
Initiate Transfer
- Select your preferred quote and initate the transfer
- Approve access to tokens & sign messages as prompted
- Monitor progress on the blockchain

Benefits of the MetaMask Bridge
Bridging assets expands what you can do in web3. Here’s why we think you’ll appreciate our solution:
Cuts Out the Legwork
No more searching various aggregators to find the right bridge for your transfer. We put that work on our end so you can focus on accessing opportunities across networks.
Vetted for Safety
We thoroughly vet any bridge listed to ensure your funds stay secure through each transfer. No worrying about scam platforms or smart contract risks.
Complete Transparency
Upfront details on fees, timing, and potential risks allow you to make informed decisions before bridging assets. No surprises down the line.
Smooth Reliability
The bridges shown have passed checks confirming they can facilitate the transfers you request. If you can select a bridge quote, you can expect it to work smoothly end-to-end.
Optimizing Bridge Usage for Cost and Speed
The MetaMask Bridge offers users the ability to compare quotes from multiple providers in real time, but understanding how to interpret these options can enhance your experience. For example:
- Prioritize providers with lower fees when transferring small amounts to minimize costs.
- For time-sensitive transactions, focus on providers with higher reliability and shorter estimated transfer times.
MetaMask Multi-Bridge Support
MetaMask’s integration of multiple bridge providers means users can benefit from network-specific advantages. Some bridges might offer better rates for high-volume transactions, while others excel in bridging less commonly used networks. Being familiar with these differences allows users to tailor their bridging strategy to their specific needs.
When using the MetaMask Bridge, users should:
- Double-check all transaction details, including the destination network and wallet address.
- Ensure they are using the latest version of MetaMask, which includes the most up-to-date security patches.
- Keep an eye on transaction confirmations, especially during periods of high network congestion.
MetaMask Gas Fees
Gas fees play a significant role in the overall cost of bridging assets. MetaMask provides transparent fee estimates during the bridging process, helping users make informed decisions. Transferring assets during low-network congestion times can lead to significant savings. You can check our Gas Fee Calculator for the first indication.
News of MetaMask Bridge
MetaMask has hinted at future updates, such as:
- Support for additional networks, expanding its usability for users engaging with a diverse range of blockchain ecosystems.
- More interface improvements for even more intuitive navigation of bridging options.
Staying informed about these developments ensures you’re leveraging the MetaMask Bridge to its full potential, keeping your crypto experience seamless and cost-effective
FAQs
What networks are supported?
The MetaMask Bridge currently supports transfers between Ethereum mainnet, Polygon, Optimism, Arbitrum, Binance Smart Chain, Avalanche C-Chain, Fantom Opera, and Gnosis Chain. More networks are continually being added.
What tokens are supported?
You can bridge major crypto assets like ETH, stablecoins (USDC, USDT, DAI, etc.), MATIC, BNB, and many ERC-20/BEP-20 tokens. Some native tokens like AVAX and FTM can also be bridged. Check the “Able to Bridge” list for available tokens.
Does MetaMask take custody of my funds?
MetaMask does not take custody of assets at any point in the bridge process. Your crypto is deposited directly into smart contracts on each network using signature-based transactions.
What is the MetaMask Bridge?
The MetaMask Bridge is a tool that enables users to transfer assets between blockchain networks, such as Ethereum and Binance Smart Chain. It simplifies the process by comparing rates from various bridge providers, offering users the most cost-effective options.
Are there fees associated with using the MetaMask Bridge?
Yes, fees vary depending on the selected networks and bridge providers. The fee structure, including gas costs, is displayed before confirming the transaction, ensuring full transparency.
How secure is the MetaMask Bridge?
MetaMask rigorously vets its bridge providers to maintain high-security standards. Additionally, users can review the transfer details and associated fees before initiating any transaction.
What should I do if my transfer doesn’t go through?
If a transfer fails, start by checking the transaction status on the originating network’s blockchain explorer. For persistent issues, consult the official MetaMask support page or the bridge provider involved in the transaction.
Which networks are supported by the MetaMask Bridge?
MetaMask regularly updates its list of supported networks to accommodate evolving user needs. Currently, it supports major networks like Ethereum, Binance Smart Chain, Polygon, and Avalanche. Always refer to the official MetaMask documentation for the latest updates
Conclusion
As blockchain networks and web3 continue expanding, seamless interoperability unlocks more opportunities. The MetaMask Bridge makes traversing this new terrain simple and secure. With a few clicks, you can transport tokens between leading layer 1 and layer 2 networks to access the growing roster of dApps, DeFi protocols, NFT projects, games, and more.
Give it a try next time you need to bridge crypto assets. While MetaMask is the most popular web3 wallet and gateway, some users also consider MetaMask alternatives based on their specific needs and preferences.