Summary: The best way to bridge between Polygon (MATIC) and Harmony (ONE) network is with a secure multi-chain DEX. With this method, users can connect their MetaMask or alternative Web 3 wallet to safely and easily transfer tokens between networks.
Our top pick for Polygon to Harmony transfers is Synapse Protocol. Their platform allows you to easily transfer WETH, USDC, USDT, DAI and other tokens between both blockchains with low fees through a MetaMask wallet.
- Fastest and safest Polygon to Harmony cross-chain DEX.
- Lowest fees and slippage for cross-chain swaps (WBTC, WETH, DAI, USDT & USDC).
- The most volume for Polygon (MATIC) to Harmony (ONE) swaps in DeFi.
How to Bridge from Polygon to Harmony One
The safest, quickest and most affordable way to bridge from the Polygon Mainnet to Harmony One is through the Synapse Protocol. They are a popular DEX (Decentralized Exchange) that offers bridging services on their platform. Simply connect your Web3 Wallet (Metamask, Wallet Connect, Coinbase Wallet & Binance Smart Chain Wallet) to Synapse and bridge in four easy steps.
- Visit the Synapse Protocol and connect your Metamask or Web3 Wallet.
- Select Polygon and Harmony as your two networks.
- Input the amount you want to bridge.
- Confirm the transaction and your coins will be on your Metamask Wallet under the Harmony One network within a minute.

Polygon to Harmony One Fees
The fees to bridge from Polygon and Harmony One are significantly cheaper than bridging from Ethereum to one of these networks. The costs to bridge from Polygon to Harmony One come to about $5USD in total. Synapse offers the lowest fees and slippage among any bridging protocol in the world. You would generally pay around $10 - $15USD to bridge on other DEXs or bridging protocols.
It is even more affordable if you use their native token SYN to bridge between networks as they offer 0% slippage and a small 1 SYN transaction fee. We recommend using SYN to bridge between networks. You can easily purchase SYN on various DEXs such as SushiSwap or Trader Joe.
Is Synapse a safe DEX for Bridging?
Synapse is widely regarded as the safest and most diverse multi-chain DEX/Bridging Protocol in the world. They have the widest selection of networks to bridge from/to, including Ethereum, Avalanche, Polygon, Harmony, DFK Chain, Terra, Arbitrum, Aurora, Boba Network, Cronos, Moonbeam, Moonriver, Optimism, BNB Chain, Fantom & Metis.
In addition to their diverse range of networks, they also offer 24/7 Live Support via their Telegram and Discord communities. You can reach them on Twitter but it is not monitored 24/7 so we recommend trying their TG or Discord first.
Final Thoughts
In conclusion, Synapse Protocol is the best option for bridging from Polygon Mainnet to Harmony One. With its easy to use platform, low fees, and 24/7 support, users can safely and efficiently transfer their tokens between networks. The use of SYN token even offers 0% slippage and a minimal transaction fee, making it an even more affordable option.