7 Best Crypto Bridges of 2025: Fastest & Most Secure Options
Choosing the best crypto bridges isn’t always easy. With so many options, you risk dealing with high fees, slow transactions, and worst of all, security threats.
In 2024, hackers stole $2.2 billion from crypto platforms according to Chainanalysis. While that’s a big number, it’s actually an improvement compared to 2022, when bridge hacks alone accounted for 69% of all stolen crypto, with over $2 billion lost in just eight months.
Still, security remains a major concern. On top of that, they face the challenge of high fees and slow cross-chain transactions, making the search for a safe and reliable way to move assets between blockchains even harder.
That’s where this guide comes in. We’ve researched the top crypto bridges of 2025, comparing security, fees, speed, and supported networks to help you pick the right one.
What are Crypto Bridges and How Do They Work?
Crypto bridges let you move assets between different blockchains that don’t natively communicate. For example, you can’t send ETH from Ethereum to Solana or BNB from Binance Smart Chain (BSC) to Avalanche without a bridge.
The following are two types of crypto bridges:
- Custodial bridges: These are run by a central entity or group of validators, making them faster but requiring trust.
- Non-custodial bridges: These use smart contracts to automate transfers, removing middlemen but carrying risks if the code has vulnerabilities.
Most bridges work by locking the original asset in a smart contract on the source chain and minting a wrapped version on the destination chain. If you bridge ETH from Ethereum to BSC, the bridge locks your ETH and mints wETH (wrapped ETH) on BSC. When you move it back, the wETH is burned, and your original ETH is released.
Some bridges skip wrapping and use liquidity pools instead, instantly swapping tokens across chains. For example, swapping BUSD on BSC for USDT on Avalanche happens through shared liquidity, avoiding the need for minting and burning.
Bridges improve blockchain interoperability, letting users access DeFi apps, NFTs, and other assets across multiple ecosystems. They also help reduce costs by allowing users to move assets to networks with lower fees, like layer-2 solutions or sidechains. More importantly, they unlock new trading and investment opportunities by making tokens usable beyond their native blockchain.
Check out our in-depth guide on crypto bridging to learn more.
Not all bridges are created equal, though. Security risks, fees, and transaction speed vary, making it crucial to choose the right one.
So, how do you pick the best cross-chain bridges for your needs?
How to Pick the Best Crypto Bridges in 2025?
Picking the wrong crypto bridge can lead to lost funds, long delays, or high fees. That’s why picking the right one matters. But with so many options, how do you know which is best? Here’s what to look for.
Security: Bridges connect different blockchains, so they need to validate transactions across networks with different security models. If a bridge has weak validation or poor auditing, it becomes an easy target for hackers. Always check if a bridge has been audited by firms like CertiK or Quantstamp, but remember—audits don’t guarantee it’s risk-free. A past hack isn’t always a red flag either. What matters is how the team responded. Did they fix the issue, compensate users, and strengthen security? If not, it’s best to avoid it.
Also, look at how the bridge validates transactions. Custodial bridges rely on a small group of validators—if they’re hacked or act maliciously, funds could be lost. Trustless bridges use smart contracts to automate transfers, removing middlemen but exposing users to potential bugs in the code. Hybrid models mix both, offering decentralization with added security. Understanding these different factors helps you choose a secure crypto bridge for your assets.
User experience: A good bridge should have a clear interface, minimal steps, and strong customer support. If a bridge requires complex approvals or manual network switching, it’s probably not the best option unless you’re an advanced user.
Supported networks and assets: Not all bridges support every blockchain or token. If you need to transfer assets between Ethereum and Solana, a bridge like Portal Token Bridge works, but for Ethereum and Polygon, the Polygon Bridge is a better choice. Always check compatibility before transferring.
Speed and fees: Most crypto bridges charge 0.1%–0.3% plus gas fees, but Ethereum gas alone can range from $5 to $50 depending on network congestion. Some bridges, like Hop Protocol, charge slightly more for near-instant transfers. If speed isn’t critical, a cheaper bridge might be better.
A good cross-chain bridge should be secure, affordable, fast, and easy to use. We’ve reviewed the top crypto bridges of 2025 to help you find the best one, but it’s always smart to do your own research. This list will give you a solid starting point and make your decision easier. Let’s dive in.
1. Celer’s cBridge
Celer cBridge is one of the best crypto bridges for users who want quick and secure cross-chain transfers without giving up control of their assets. It supports 40+ blockchains, including Ethereum, BNB Chain, Polygon, Avalanche, Arbitrum, and Optimism.
Unlike some bridges that hold custody of funds, Celer cBridge is fully decentralized and non-custodial, meaning users stay in control during transfers. Security is a major focus—before launching, it went through 15 independent audits by firms like CertiK and PeckShield.
Transfers are fast and efficient, with fees based on the source and destination chains and the amount transferred. The protocol fee ranges from 0% to 2%, plus a base fee. However, large transfers may face slippage due to liquidity limits.
For those looking for a secure, decentralized, and cost-effective way to move assets across blockchains, Celer cBridge is a reliable choice for blockchain interoperability.
2. Portal (Wormhole)
Portal Bridge, built on Wormhole, is one of the best crypto bridges for moving assets across different blockchains. It supports Ethereum, Solana, BNB Chain, Polygon, Avalanche, and more, making it a go-to option for both token and NFT transfers.
It uses a semi-trustless model with 19 validators, known as “Guardians,” to verify transactions. Transfers are completed once confirmed on the source chain, maintaining a balance between security and speed. The bridge is also affordable, charging just $0.0001 plus gas fees.
Security is a priority. However, in 2022, Wormhole was hacked for $325 million due to a smart contract flaw. The issue was patched, but security still depends on the validators maintaining integrity.
Despite some confusion over its rebranding from Wormhole to Portal Bridge, the platform remains a trusted choice for blockchain interoperability. It’s great for users who need a versatile bridge with strong multi-chain and NFT support.
3. Rubic
Rubic isn’t a single crypto bridge—it’s a DEX & cross-chain bridge aggregator. Instead of handling transfers itself, it connects to over 30 bridges, helping users find the best routes, lowest fees, and deepest liquidity for cross-chain swaps. It supports 90+ blockchains, including Ethereum, BNB Chain, Polygon, Avalanche, Arbitrum, and Optimism.
Because it aggregates multiple bridges, Rubic offers access to 15,500+ assets without being limited to one bridge’s pricing or liquidity. Swaps are instant and require just one click, making transfers across chains as easy as swapping tokens on a DEX. Plus, there are no protocol fees. You only pay gas fees, keeping costs low.
Unlike some bridges that rely on external servers, Rubic is fully decentralized and runs only on blockchain and frontend components. Security is a priority, with audited smart contracts ensuring safe transactions. Swaps are fast and can be done with just one click.
For users looking for a secure, decentralized, and hassle-free way to swap assets across multiple chains, Rubic stands out as a top choice for blockchain interoperability.
4. Synapse
Synapse is one of the best crypto bridges for users who want quick and easy asset transfers across multiple blockchains. It supports over 15 networks, including Ethereum, BNB Chain, Polygon, Avalanche, Arbitrum, and Optimism, making it a great choice for DeFi users.
Unlike traditional bridges that lock and mint tokens, Synapse uses liquidity pools, allowing for instant swaps. This means you can swap USDC on Ethereum for USDT on Avalanche in seconds—no long wait times. Security is handled through a hybrid model combining multi-party computation (MPC) and liquidity pools.
Fees are low, ranging from 0.05% to 0.1% per swap, plus standard gas costs. However, large transfers may face slippage due to liquidity limits. Synapse also had security threats in 2021, but the team fixed them quickly.
For those looking for fast and hassle-free stablecoin swaps and multi-chain DeFi access, Synapse is a solid option, offering one of the smoothest cross-chain bridging experiences.
5. Polygon Portal
The Polygon Bridge is one of the best crypto bridges for moving assets between Ethereum and Polygon. It’s designed for low-cost transactions, making it ideal for users looking to access DeFi, gaming, and NFTs on Polygon.
This trustless bridge uses Polygon’s Proof-of-Stake (PoS) validator network and Ethereum checkpoints to secure transactions. Deposits take around 7–8 minutes, while withdrawals take about 45 minutes due to finalization checkpoints. Plasma-based withdrawals take even longer. Gas fees apply, but there’s no extra bridge fee (subject to change).
Security is a strong focus. In 2021, a bug in the Plasma Bridge was discovered that could have put $850 million at risk, but it was patched quickly, and a $2 million bug bounty was paid to the ethical hacker who reported it.
Despite longer withdrawal times than some alternatives, the Polygon Bridge is widely trusted. It’s used by Aave, OpenSea, and Uniswap on Polygon, making it a solid choice for those looking for blockchain interoperability with minimal risk.
6. Avalanche Bridge
The Avalanche Bridge is one of the best crypto bridges for transferring assets between Ethereum and Avalanche quickly and at low cost. It also supports wrapped Bitcoin (BTC.b), making it useful for BTC transfers into Avalanche’s ecosystem.
For security, it uses Intel SGX secure enclaves, which add an extra protection layer even if the software gets compromised. However, Intel SGX has had past vulnerabilities, so it’s not entirely risk-free. The bridge also relies on a small group of relayers, which makes it faster but slightly centralized.
Transfers to Avalanche are almost instant, while Ethereum transactions take a few minutes due to their longer block times. Fees are low compared to many alternatives:
Ethereum → Avalanche: 0.025% (min $3, max $250).
Avalanche → Ethereum: 0.1% (min $12, max $1,000).
Bitcoin → Avalanche: Flat $3.
Avalanche → Bitcoin: $20 plus Bitcoin network fees.
Despite its semi-centralized relayer setup, the Avalanche Bridge remains a trusted option for blockchain interoperability between Ethereum and Avalanche and has moved over $27 billion in assets since launch.
7. Binance Bridge
The Binance Bridge is one of the best crypto bridges for moving assets between Ethereum and BNB Chain quickly and at a low cost. It supports a variety of tokens, including XRP, DOT, and ATOM, by converting them into wrapped versions that work on BNB Chain.
This bridge is fully centralized, meaning Binance controls the wallets and assets. While this makes transfers fast and smooth, it also means users must trust Binance to keep funds safe. In 2022, Binance’s Token Hub Bridge was hacked for $570 million, showing the risks of centralization.
Transfers settle within minutes, and there are no bridge fees in most cases. Some cross-chain transactions may have a 0.1% fee, plus standard gas costs.
For traders and DeFi users who need a cheap and quick way to move assets between Ethereum and BNB Chain, Binance Bridge is a solid choice. However, since Binance holds custody of funds, users should consider security risks before making large transfers.
Final Thoughts
The best crypto bridges offer a mix of security, speed, and low fees, but the right one depends on your needs.
Portal Bridge and Celer cBridge are great for secure multi-chain transfers, while Synapse and Rubic make instant cross-chain swaps easy. Avalanche Bridge is ideal for Ethereum-to-Avalanche transfers, and Binance Bridge is best for fast, low-cost Ethereum-BNB Chain transactions. If you prefer decentralization, Celer cBridge is a solid choice.
Always review security, fees, and supported blockchains before using a bridge to keep your transfers safe and smooth.