Ethereum DEXs Compared: Uniswap, Curve, and Balancer

Choose the pool that fits the pair

We reviewed protocol documentation on October 25, 2026. This comparison describes documented pool models rather than ranking swap quality or measuring execution. Available contracts, chains, interfaces, and liquidity change over time. Confirm that you are using the official interface and the Ethereum network before approving a transaction.

A decentralized exchange (DEX) uses onchain contracts to facilitate token swaps. Many DEXs route trades through liquidity pools, but pools can use different pricing models and token compositions. The Ethereum glossary describes a DEX as an Ethereum app that lets users swap tokens. For a real trade, compare the quote for the exact token pair and amount; the protocol brand alone does not determine the final price.

Uniswap: a broad pool-based swap venue

Uniswap provides access to swaps against pools on supported networks. Its developer guide to swaps explains that execution interacts with pool liquidity and that price impact and transaction ordering can affect results.

Use the quote to check the route, expected output, price impact, and transaction cost. A token may have multiple pools or routes, and the largest displayed pool is not necessarily the best route for every trade size. Confirm the token contract and review any required approval before signing.

Curve: pools for correlated and volatile assets

Curve supports several pool designs. Its pool overview describes StableSwap pools for assets expected to remain close or correlated in price and CryptoSwap pools for assets that are more volatile or uncorrelated.

This distinction matters when selecting a pool for a swap or for liquidity provision. Check the assets and pool type rather than assuming that every Curve market is a stablecoin market. If you deposit liquidity, understand how asset prices can diverge and how withdrawals are calculated.

Balancer: weighted and configurable pool designs

Balancer offers pools with different compositions and pricing logic. Its pool documentation describes pool types and ways developers can integrate swaps, add liquidity, and build on the protocol. Older Balancer V2 documentation also describes weighted pools and composable stable pools; the exact implementation in use depends on the deployed pool and version.

Balancer can be relevant when a pair is held in a weighted or other configured pool. Inspect the pool’s tokens, weights, fees, and liquidity, as well as the route and quote presented by the interface. Customization does not remove smart-contract, liquidity, or price risk.

Compare the trade, not just the protocol

Before swapping, compare:

• The exact contract addresses. A name or ticker can refer to more than one asset.
• The route and expected output. A quote may use more than one pool, and the final output can differ if conditions move before execution.
• Price impact and pool depth. Recent volume or a chart does not guarantee enough liquidity for your trade size.
• Fees and approvals. Account for the pool fee, network gas, and any token allowance you are asked to sign.
• The transaction details. Confirm the network, recipient, input amount, minimum output, and contract interaction in your wallet.

Swapping and providing liquidity are different activities. A swapper exchanges assets and faces execution risk; a liquidity provider deposits into a pool and takes exposure to pool design, smart-contract behavior, and changes in the relative prices of deposited assets. Read the protocol documentation for the specific pool you plan to use.

For a broader explanation of venues, read DEX vs. CEX. To understand how liquidity affects execution, see slippage, liquidity, and latency.

Sources and review scope

We used the Ethereum DEX glossary, Uniswap swap documentation, Curve pool overview, and Balancer documentation. We did not test current route quality, fees, liquidity depth, or execution outcomes.