Relay is the cheapest bridge we checked for moving tokens to Base: its docs list a 0.00% platform fee on token bridges plus a $0.02 execution cost and gas. Once on Base, gas is small: Base's docs set a minimum base fee of 0.005 gwei, about $0.002 for a typical 200,000 gas transaction at an ETH price of $2,000. Base's own docs send Ethereum users to Superbridge or Brid.gg for the native route.
Quick answer
Use Relay or Across for fast, low-fee moves to Base from other chains, deBridge when coming from Solana with a fixed fee, and withdraw straight to Base from Coinbase if your funds are there.
- 01Relay: best for low fees
- 02Across: best for Ethereum L2 moves
- 03deBridge: best for fixed fees
- 04Stargate: best for chain coverage
- 05Symbiosis: best for any-to-any swaps
The 8 best base bridges
Relay's docs list a 0.00% platform fee on token bridges and 0.01% to 0.15% on swaps, plus a $0.02 execution cost and gas. Its chains API returns Base among 60 chains, and Spearbit, Certora and Zellic audited it.
- Chains
- EVM chains, Solana, Bitcoin and others
- Platforms
- Web, API, SDK
- Custody
- Non-custodial
- Fees
- 0.00% platform fee on token bridges; 0.01% to 0.15% on swaps; plus $0.02 flat execution cost and gas
- Chains
- 69+ networks
Pros
- 0.00% platform fee on plain token bridges
- Routes across 69+ networks per its docs
- Depository audited by Spearbit and Certora; settlement by Zellic
Cons
- Platform fee up to 0.15% on minor-asset swaps
- $0.02 flat execution cost plus destination gas on every transfer
- Withdrawals from the Depository rely on a single Allocator signer
Skip it if you want a governance token: Relay has none.
#2A
Best for Ethereum L2 moves
Across has a SpokePool contract on Base and shows its cost as an LP fee plus a relayer fee, taken as the gap between what you send and what you receive. OpenZeppelin audited it.
- Chains
- Ethereum, Arbitrum, Base, BNB Chain and other EVM chains
- Platforms
- Web, API
- Custody
- Non-custodial
- Fees
- LP fee plus relayer fee, taken as the gap between input and output amount
- Chains
- 22 chains
Pros
- Deployed on 22 chains per its contract list
- Contracts audited by OpenZeppelin
- Bug bounty pays up to $1,000,000 for critical issues
Cons
- LP fee rises steeply once pool utilization passes its kink
- Blast support scheduled for removal on July 20, 2026
- Mostly EVM chains
Skip it if you need non-EVM routes Across does not list.
deBridge lists Base among its supported chains and publishes a flat fee in the source chain's gas token (0.001 ETH on Ethereum, 0.015 SOL on Solana) plus a 4 bps protocol fee. It lists 26+ audits.
- Chains
- Ethereum, EVM networks, Solana and TRON
- Platforms
- Web, API, SDK
- Custody
- Non-custodial
- Fees
- Flat fee in native gas token (0.001 ETH on Ethereum, 0.015 SOL on Solana) plus 4 bps protocol fee; solver margin about 4 bps
- Security audits
- 26+ audits; $200,000 bug bounty
Pros
- 4 bps protocol fee, and both fees are refunded if an order is cancelled
- No pooled TVL for attackers to target
- 26+ audits and a $200,000 bug bounty
Cons
- Flat fee of 0.015 SOL on Solana is costly on small transfers
- Solver margin of about 4 bps is added on top of the protocol fee
- Limit orders can go unfilled if the margin is too thin
Skip it if you move small amounts: the flat fee weighs more on a $50 transfer.
Stargate V2 has mainnet contracts on Base and 45 other chains, and has run since March 17, 2022. V2 uses a dynamic fee that can turn into a rebate; Zellic and OtterSec audited V2.
- Chains
- Ethereum, Arbitrum, Base, BNB Chain and other EVM chains
- Platforms
- Web, API
- Custody
- Non-custodial
- Fees
- Dynamic fee or rebate in V2 (V1 was a flat 6 bps); 5/6 to treasury, 1/6 to veSTG
- Chains
- 46 chains (V2 mainnet contracts)
Pros
- V2 contracts deployed on 46 chains
- V2 audited by Zellic and OtterSec; V1 by Zellic, Quantstamp and Zokyo
- Transfers on depleted routes can earn a rebate instead of paying a fee
Cons
- Dynamic V2 fee is not a fixed published rate
- User also pays LayerZero execution and DVN fees in native gas
- V2 bounty page in docs still says coming soon
Skip it if you want a fixed fee rate: V2 does not publish one.
#5S
Best for any-to-any swaps
Symbiosis lists Base among its top networks and swaps tokens while bridging across 50+ chains. Five firms audited it, including SlowMist and Zokyo.
- Chains
- EVM chains, TON, Tron, Bitcoin and others
- Platforms
- Web, API, SDK
- Custody
- Non-custodial
- Fees
- Source gas paid by user; S-chain and destination gas withheld from the swap in stablecoin equivalent
- Chains
- 50+ chains
Pros
- Swaps across 50+ chains per its site, including TON and Tron
- Audits by Omniscia, SlowMist, Zokyo, Decurity and HashCloak
- One signed transaction covers all hops
Cons
- Gas for S-chain and destination hops is withheld from the output
- Routes pass through synthetic sTokens
- Integrators must deploy their own collector contracts to add fees
Skip it if you want a percentage fee stated up front: Symbiosis publishes none.
Portal Bridge runs on Wormhole, which has Core Contracts on Base among 37 mainnet chains and lists 29 audits by firms including Trail of Bits and OtterSec.
- Chains
- Ethereum, Solana, Sui, Aptos, Base, Arbitrum and other chains
- Platforms
- Web, SDK
- Custody
- Non-custodial
- Chains
- 37 mainnet chains with Core Contracts
- Security audits
- 29 audits: Trail of Bits, Neodyme, Kudelski, OtterSec, Certik, Hacken, Zellic, Coinspect, Halborn, Cantina
Pros
- Core Contracts on 37 mainnet chains, including Solana, Sui and Aptos
- 29 third-party audits listed in Wormhole docs
- Bug bounty run through Immunefi
Cons
- Wormhole docs note a listed Core Contract does not guarantee the chain is currently connected
- HyperEVM integration flagged as experimental in Wormhole docs
- Message validity depends on the Guardian network rather than on-chain light clients
Skip it if you want a published fee: we found no protocol fee on Portal's FAQ or Wormhole's docs.
Allbridge Core moves USDC, USDT and USDe to and from Base through CCTP, xReserve and OFT, with a flat 0.1% service fee plus a relayer fee. Its docs say the Core liquidity pools were discontinued in July 2026.
- Chains
- EVM chains and non-EVM chains such as Solana
- Platforms
- Web, SDK
- Custody
- Non-custodial
- Fees
- 0.1% service fee plus a relayer fee
- Security audits
- Kudelski Security, Quarkslab, Sherlock
Pros
- Flat 0.1% service fee on Core transfers
- No liquidity pool price impact on Core transfers
- Relayer fee can be paid in ABR0 at a discount
Cons
- Relayer fee rises on destination chains with high gas
- Allbridge Classic shuts down in November 2026, so older routes go away
- Focus is stablecoins, not arbitrary tokens
Skip it if you bridge large amounts: a 0.1% fee is $100 on $100,000.
Synapse lists FastBridge (RFQ) contracts on Base and supports 20+ EVM and non-EVM chains. Its docs say its features will fold into a new product called Cortex.
- Chains
- Ethereum, Arbitrum, Base, Optimism, Avalanche and other chains
- Platforms
- Web, API, SDK
- Custody
- Non-custodial
- Chains
- 20+ EVM and non-EVM chains
- Token
- SYN
Pros
- Bridges between 20+ EVM and non-EVM chains
- Native USDC route through Circle CCTP
- SDK, REST API and embeddable widget for integrators
Cons
- Pool routes convert through nUSD or nETH intermediate tokens
- Docs say all features will fold into Cortex, so the product is in transition
- No audit list in the current docs
Skip it if you want a published fee and audit list: current docs show neither.
Not on this list
Base: Base's docs do not describe a bridge app of their own; they point Ethereum users to Superbridge or Brid.gg and Solana users to the Base-Solana bridge.
hop-protocol: Not operating: its site no longer serves the bridge app when we checked on Sep 26, 2026.
Base Bridges compared
Select a name to jump to its review.
| Name | Best for | Fees | Chains | Custody | Token |
|---|
| Relay | Cheap moves to Base | 0.00% platform fee on token bridges; 0.01% to 0.15% on swaps; plus $0.02 flat execution cost and gas | EVM chains, Solana, Bitcoin and others | Non-custodial | Not verified |
|---|
| Across | ETH and USDC between L2s | LP fee plus relayer fee, taken as the gap between input and output amount | Ethereum, Arbitrum, Base, BNB Chain and other EVM chains | Non-custodial | Not verified |
|---|
| deBridge | Predictable EVM-Solana fees | Flat fee in native gas token (0.001 ETH on Ethereum, 0.015 SOL on Solana) plus 4 bps protocol fee; solver margin about 4 bps | Ethereum, EVM networks, Solana and TRON | Non-custodial | Not verified |
|---|
| Stargate | Native assets, 46 chains | Dynamic fee or rebate in V2 (V1 was a flat 6 bps); 5/6 to treasury, 1/6 to veSTG | Ethereum, Arbitrum, Base, BNB Chain and other EVM chains | Non-custodial | STG |
|---|
| Symbiosis | Swap and bridge in one | Source gas paid by user; S-chain and destination gas withheld from the swap in stablecoin equivalent | EVM chains, TON, Tron, Bitcoin and others | Non-custodial | SIS |
|---|
| Portal Bridge (Wormhole) | Wormhole-native assets | Not verified | Ethereum, Solana, Sui, Aptos, Base, Arbitrum and other chains | Non-custodial | Not verified |
|---|
| Allbridge | USDC, USDT and USDe | 0.1% service fee plus a relayer fee | EVM chains and non-EVM chains such as Solana | Non-custodial | ABR0 |
|---|
| Synapse | Existing Synapse users | Not verified | Ethereum, Arbitrum, Base, Optimism, Avalanche and other chains | Non-custodial | SYN |
|---|
“Not verified” means we could not confirm the value on the project’s own pages.
How we rank base bridges
- 01Confirmed on Base: Base must appear in the bridge's own contract list, chain list or API. We did not rely on third-party lists.
- 02Published fee: the protocol's own fee from its docs, excluding gas. A fee we could not find counts against the bridge.
- 03Chain coverage: how many networks the bridge's own docs list, which decides where you can bridge from.
- 04Audits: named auditors on the bridge's own pages.
- 05Operating status: incidents and product changes the project states in its docs, such as Allbridge's July 2026 change.
No project paid to be listed or ranked. Full rules: methodology.
How to choose
Skip the bridge if you use Coinbase
Base's docs say Coinbase account holders can withdraw ETH, USDC and cbBTC straight to Base by picking Base as the network, with no bridge.
Leaving Base for Ethereum takes a week natively
Base's docs say withdrawals to Ethereum wait 7 days under its fault proof system. Across and Relay pay out sooner through relayers.
Compare the received amount
Across and Relay show cost as the difference between input and output. Quote the same transfer on two bridges and compare what lands in your wallet.
Check the token address
Base's docs tell token holders to confirm an ERC-20 has a Base entry in the Superchain token list before bridging, and to test with small amounts.
Who should skip all of these
- Coinbase users with funds already on the exchange: a direct withdrawal to Base is cheaper than any bridge.
- Anyone who needs Hop Protocol: it is not operating.
Bottom line
Relay and Across cover most everyday moves to Base at low cost, and deBridge is the clearest when coming from Solana.
If your funds sit on Coinbase, withdraw straight to Base instead of bridging.
Educational content, not financial advice. Crypto assets are volatile; do your own research.
FAQ
What is the cheapest way to bridge to Base?
±
From Coinbase, withdraw directly to Base with no bridge. Among bridges we checked, Relay lists a 0.00% platform fee on token bridges plus a $0.02 execution cost and gas.
Does Base have an official bridge?
±
Base's docs recommend Superbridge or Brid.gg for moves between Ethereum and Base, and the Base-Solana bridge for Solana assets.
How long does it take to withdraw from Base to Ethereum?
±
Base's docs say 7 days under its fault proof system on the native route. Relayer bridges such as Across and Relay pay out sooner.
How much is gas on Base?
±
Base's docs set a minimum base fee of 0.005 gwei, about $0.002 for a typical 200,000 gas transaction at an ETH price of $2,000, plus an L1 security fee.
Is Allbridge still working on Base?
±
Yes for stablecoins: its docs list Base and route transfers through CCTP, xReserve and OFT. Its liquidity pools were discontinued in July 2026.
What changed in this list
2026-09-26First version: eight bridges confirmed on Base, ranked on published fees, chain coverage and audits.