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Best Rates Guaranteed
Onion Swap aggregates liquidity across multiple pools and chains to always find you the best possible exchange rate on every trade.
⚡ Decentralized · Non-Custodial · Private
Onion Swap is the decentralized exchange built for speed, privacy, and simplicity. Trade any token at the best rates — no sign-up, no KYC, no limits. Just swap.
Onion Swap is designed from the ground up for performance, privacy, and profit.
Onion Swap aggregates liquidity across multiple pools and chains to always find you the best possible exchange rate on every trade.
OnionSwap is 100% non-custodial. No sign-up, no ID verification, no personal data collected. Just connect your wallet and swap.
Trades on Onion Swap execute in seconds with optimized routing. No waiting, no hanging transactions, no lost opportunities.
OnionSwap supports 12+ blockchains including Ethereum, BSC, Polygon, Solana, and Avalanche — all from one interface.
With $4.2B+ in total volume, Onion Swap offers deep, stable liquidity for thousands of token pairs with minimal slippage.
Provide liquidity to OnionSwap pools and earn a share of every swap fee. Passive income from the DeFi revolution.
Start swapping in under 60 seconds. No account needed.
Connect MetaMask, WalletConnect, Phantom, or any compatible wallet to OnionSwap in one click.
Choose the tokens you want to swap from our library of 1,200+ supported pairs across all chains.
Onion Swap automatically finds the best route and shows you the exact rate, fee, and estimated output.
Approve the transaction in your wallet. Tokens arrive in seconds. No middlemen, no delays.
From blue-chip assets to new DeFi gems — all available on OnionSwap.
OnionSwap never holds your funds. Smart contracts execute trades directly between wallets.
All Onion Swap contracts are audited by leading security firms. Code is fully open-source and verified.
Advanced MEV (Maximal Extractable Value) protection shields your swaps from front-running bots.
Customizable slippage tolerance and real-time price impact warnings keep your trades safe.
Like an onion, OnionSwap wraps your assets in multiple layers of protection — from smart contract to interface.
Over 500,000 wallets trust Onion Swap daily.
"OnionSwap has the best rates I've found on any DEX. The interface is clean and swaps execute in seconds. This is now my go-to exchange for all token swaps."
"The privacy-first approach of Onion Swap is exactly what DeFi needs. No KYC, no tracking, just pure decentralized trading. Highly recommend onionswap."
"As a liquidity provider on Onion Swap, I earn consistent fees with minimal risk. The protocol is solid, the APY is competitive, and the team is always responsive."
Join 500,000+ traders. No sign-up required — just connect your wallet and start trading on OnionSwap today.