As crypto adoption has grown, centralised exchanges have become the primary gateway for buying, selling, and trading digital assets. Their deep liquidity, user-friendly interfaces, and efficient trade execution have made them the preferred choice for millions of users worldwide. However, these platforms are still operated by a central entity that oversees users’ funds, transactions, and platform operations. This has fuelled the rise of decentralised exchanges (DEXs), which enable peer-to-peer trading without relying on a central intermediary. Among them, Uniswap stands out as one of the most widely adopted protocols. Its most recent major version, Uniswap V4, which went live in January 2025, builds on years of innovation in decentralised trading and liquidity provision, while earlier versions such as V3 remain widely used across the ecosystem.
What is Uniswap?
As mentioned earlier, Uniswap is a decentralised exchange (DEX) built on the Ethereum blockchain. Unlike centralised exchanges that are managed by a single company or organisation, Uniswap operates through self-executing smart contracts, allowing users to trade directly from their wallets without relying on an intermediary. This decentralised structure means no single entity owns or controls the protocol.
Historically, the swap fees collected on Uniswap went entirely to liquidity providers rather than to a company. This changed in December 2025, when UNI token holders voted to activate the protocol’s long-dormant “fee switch.” Liquidity providers still earn the majority of every swap fee, but a small share is now directed to an on-chain mechanism that burns UNI tokens, linking protocol usage to the token’s supply.
How Does it Work?
Most centralised exchanges rely on an order book model, where buy and sell orders from users are matched to facilitate trades. For example, if you want to sell $100 worth of Ethereum, the transaction can only be completed when another user is willing to buy the same amount at a matching price.
Uniswap takes a different approach. Instead of matching buyers and sellers through an order book, it uses Automated Market Makers (AMMs) and liquidity pools to execute trades. These mechanisms are powered by smart contracts, allowing users to swap tokens instantly without needing a counterparty on the other side of the transaction.
What is the UNI Token and What is it Used For?
The UNI token, often referred to as the Uniswap coin, is the native governance token of the Uniswap ecosystem. Introduced in September 2020, it allows token holders to participate in the protocol’s decision-making process. UNI is not used as a payment or trading-fee token within the exchange. Its primary role is governance, giving the community a voice in shaping the protocol’s future. Following the December 2025 “UNIfication” vote, UNI also gained a value-accrual role: a portion of protocol fees is now used to burn UNI, tying the token more directly to the protocol’s activity.
UNI as a Governance Token
UNI holders can vote on proposals related to protocol upgrades, treasury allocation, fee mechanisms, and other ecosystem developments. This governance model ensures that major decisions are made collectively by the community instead of a central authority. The more UNI tokens a user holds (or has delegated), the greater their voting power.
How to Earn UNI Tokens
There are several ways to obtain UNI tokens:
- Purchase UNI from a crypto exchange.
- Receive UNI through governance incentive programmes, if available.
- Earn rewards by participating in ecosystem campaigns or liquidity mining initiatives introduced by partner protocols.
- Participate in community grants and development programmes that distribute UNI incentives.
While many users track the Uniswap price before investing, it is important to remember that UNI’s value is tied to its role in governance, broader ecosystem growth, and, since the December 2025 fee-switch activation, a fee-driven token-burn mechanism.
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Uniswap V2 vs. V3 vs. V4: What Changed?
Key Upgrades Introduced in Each Version
| Version | Major Improvements |
| Uniswap V2 | ERC-20 to ERC-20 token swaps, flash swaps, improved price oracles, and broader token compatibility. |
| Uniswap V3 | Introduced concentrated liquidity, multiple fee tiers, and greater capital efficiency for liquidity providers. |
| Uniswap V4 | Added hooks that allow developers to customise pool behaviour, a singleton architecture for lower gas costs, and native ETH support for improved efficiency. |
How to Provide Liquidity on Uniswap
Providing liquidity on Uniswap involves depositing two tokens of equal value into a liquidity pool using a compatible crypto wallet. Once the assets are deposited, liquidity providers receive a pool position and earn a share of the trading fees generated by swaps within that pool. The exact returns depend on trading volume, the chosen fee tier, and overall market activity.
What Are the Risks of Providing Liquidity?
Although liquidity provision can generate passive income, it also carries risks. Market volatility can affect returns, while lower trading activity may reduce fee earnings. Smart contract vulnerabilities, despite multiple audits, remain another consideration. Liquidity providers should understand these risks before committing capital.
What is Impermanent Loss and How Does it Affect You?
Impermanent loss occurs when the price of the deposited tokens changes relative to when they were added to the pool. As traders rebalance the pool, the value of a liquidity provider’s holdings may become lower than if the assets had simply been held in a wallet. The loss is termed “impermanent” because it may decrease if prices return to their original levels, although it becomes permanent once liquidity is withdrawn.
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Uniswap Fees: How Much Does it Cost to Swap?
The total cost of swapping tokens on Uniswap consists of two primary components: network gas fees and liquidity provider fees. While the protocol itself does not charge a traditional trading commission, users must pay both of these costs to complete a transaction.
Gas Fees vs. Protocol Fees on Uniswap
Gas fees are paid to the blockchain network to process transactions and vary depending on network congestion. On Ethereum, these fees can fluctuate significantly during periods of high demand. The swap fee paid on each trade is shared between liquidity providers and the protocol. Liquidity providers receive the larger share, while a smaller portion, which’s the protocol fee, switched on by governance in December 2025, is routed to a mechanism that burns UNI. Different liquidity pools offer different fee tiers, allowing users to balance trading costs with available liquidity. Different liquidity pools offer different fee tiers, allowing users to balance trading costs with available liquidity.
Uniswap vs. Other DEXs: How Does It Compare?
Uniswap remains one of the largest decentralised exchanges by trading volume, but several competing DEXs offer alternative features depending on the blockchain ecosystem and user preferences.
Uniswap vs. SushiSwap
SushiSwap was originally developed as a fork of Uniswap but has since introduced additional products such as lending, staking, and yield farming. While both platforms offer automated market maker (AMM) trading, Uniswap generally maintains deeper liquidity and stronger institutional adoption.
Uniswap vs. PancakeSwap
PancakeSwap operates primarily on the BNB Chain and is known for its lower transaction fees compared to Ethereum-based DEXs. It also offers gaming, lotteries, NFTs, and staking features beyond token swaps. Uniswap, however, remains the preferred choice for many Ethereum users due to its large liquidity pools, extensive token support, and continuous protocol innovation.
Is Uniswap Safe to Use?
One of the most common questions asked by new users exploring Uniswap is whether the platform is safe. As a decentralised exchange, users retain control of their private keys and funds throughout the trading process, reducing custodial risk. However, like all DeFi applications, users should understand the risks associated with smart contracts and fraudulent token listings.
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Smart Contract Risks and Audits
Uniswap’s smart contracts have undergone multiple independent security audits and have been extensively battle-tested over the years. Nevertheless, no smart contract can be considered completely risk-free. Bugs, vulnerabilities, or unforeseen exploits remain possible, making proper risk management essential.
How to Avoid Scam Tokens on Uniswap
Because anyone can create and list a token on a decentralised exchange, users should verify token contract addresses through official project websites or trusted blockchain explorers before making a purchase. Checking liquidity, trading volume, project documentation, and community credibility can also help identify potentially fraudulent tokens. Exercising due diligence remains one of the best ways to trade safely on Uniswap.
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FAQs on Uniswap
What is Uniswap and how does it work?
Uniswap is a decentralised exchange (DEX) built on the Ethereum blockchain that allows users to swap cryptocurrencies directly from their wallets without relying on a central intermediary. Instead of using an order book, Uniswap uses Automated Market Makers (AMMs) and liquidity pools to facilitate trades through smart contracts.
Is Uniswap safe to use?
Uniswap is generally considered one of the most established decentralised exchanges and has undergone multiple smart contract audits. Since users retain control of their funds, there is no custodial risk associated with holding assets on the platform. However, users should still exercise caution, verify token contract addresses, and be aware of risks such as smart contract vulnerabilities and scam tokens.
What is the UNI token used for?
The UNI token is the governance token of the Uniswap protocol. It allows holders to vote on proposals related to protocol upgrades, treasury management, fee structures, and other ecosystem decisions. It also represents community participation in the future development of the protocol. Since December 2025, when governance activated the protocol fee switch, a share of protocol fees is also used to burn UNI, giving the token a value-accrual function in addition to its governance role.
What is impermanent loss on Uniswap?
Impermanent loss is the temporary reduction in the value of assets deposited into a liquidity pool compared to simply holding those assets in a wallet. It occurs when the prices of the pooled tokens change relative to one another. The greater the price movement, the higher the potential impermanent loss.
What is the difference between Uniswap V2 and V3?
The biggest difference is that Uniswap V3 introduced concentrated liquidity, allowing liquidity providers to allocate capital within specific price ranges instead of across the entire price curve. This improves capital efficiency and can increase fee earnings, although it requires more active position management than Uniswap V2.
Disclaimer:
Crypto products and NFTs are unregulated and can be highly risky. There may be no regulatory recourse for any loss from such transactions. Each investor must do his/her own research or seek independent advice if necessary before initiating any transactions in crypto products and NFTs. The views, thoughts, and opinions expressed in the article belong solely to the author, and not to ZebPay or the author’s employer or other groups or individuals. ZebPay shall not be held liable for any acts or omissions, or losses incurred by the investors. ZebPay has not received any compensation in cash or kind for the above article and the article is provided “as is”, with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information.
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