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Best Decentralised Exchanges · Rank 01 of 8
The default venue for almost any EVM swap
Last verified August 17, 20264 scored axes
Documented and independently verifiable
Uniswap scores 9.2 out of 10 and ranks #1 of 8 in the best decentralised exchanges table, strongest on contract security (9.5) and weakest on execution cost (8.6).
The most battle-tested automated market maker in existence, with core contracts that have held enormous value across multiple market crises. V4 hooks add flexibility at the cost of a larger surface area to audit, which is the only real reservation.
4 axes, weighted as published in the table’s methodology. Each score below is read from the fact printed under it.
9.5/ 35% of the score
v2 and v3 pool contracts are immutable once deployed and have held value continuously since 2018 and 2021; multiple published audits, formal verification on v4 and a long-running bug bounty; no exploit of the core pool contracts on record.
9.4/ 25% of the score
Deepest on-chain reserves for both major and long-tail EVM pairs, sustained without emissions since the 2020 liquidity-mining programme ended.
8.6/ 20% of the score
Pool fee tiers of 0.01% to 1% selected per pool; on Ethereum mainnet the dominant cost is gas, materially lower on the L2 deployments.
8.8/ 20% of the score
Pools cannot be upgraded or paused; a protocol fee switch exists under governance; routing and the main front end are operated by Uniswap Labs, with independent interfaces available.
Uniswap's v2 and v3 pool contracts cannot be upgraded, paused or drained by anyone, including their authors. That single property is why the protocol has held enormous value since 2018 and 2021 respectively without a core exploit: there is no admin key to steal, no timelock to race, no governance vote that can reach into a live position. Most DeFi risk assessments are about who could change the rules; here, nobody can.
The 2020 liquidity-mining programme ended and the depth stayed. Five years later Uniswap still carries more volume than any other on-chain venue, funded entirely by fees paid by people who wanted to trade rather than by tokens printed to attract them. For long-tail EVM pairs the depth advantage is not close.
Hooks let a pool run custom logic at defined points, which moves part of the audit surface from Uniswap to whoever wrote the hook. The core remains formally verified and heavily audited; the pool you are trading in may not be. Read the hook or trade in a plain pool.
Fee tiers run from 0.01% to 1% per pool and gas dominates the cost on Ethereum mainnet, which is why most retail activity has migrated to the L2 deployments. Routing and the main front end are operated by a company, and a governance-controlled protocol fee switch exists — neither touches your funds, but both belong in an honest account of who controls what.
Its core pool contracts are immutable and have never been exploited across seven years and very large balances, which is the strongest security evidence available in DeFi. The residual risks are the tokens you choose to trade, the front end you use, and — on v4 — the hook attached to a given pool.
Each pool charges a swap fee set at creation, typically between 0.01% and 1%, which goes to liquidity providers. A separate protocol fee exists under governance control. On Ethereum mainnet the dominant cost for small trades is gas, not the pool fee.
For custody, yes — you keep your keys and no venue can freeze the balance. For very large orders in thin pairs, a deep centralised book will usually cost less in slippage. Most users end up using both for different jobs.
8 services in best decentralised exchanges