What are decentralized cryptocurrency exchanges (also known as DEX exchanges) and what are their main advantages? Probably everyone who has started their activity in the crypto industry has asked this question at least once.
DEX Cryptocurrency Exchange
So, a DEX cryptocurrency exchange is a platform where participants can exchange virtual currency directly, without intermediaries.
Initially, all crypto exchanges operated on the principle of a “center,” which was the main processor of all operations. Users created profiles, deposited funds, and then submitted orders in a unified order book. At the time of the transaction, fiat or virtual funds used for the transaction were stored in the exchange’s wallets.
Centralized and decentralized crypto exchanges operate on different principles. The former work like banking systems. After depositing your digital currency, the exchange not only stores it but also uses it for its needs while performing the necessary operations such as withdrawal or exchange. Users of such platforms do not possess their private keys.
In the case of the latter, the platform does not store your funds. The first decentralized crypto exchanges operated on-chain, meaning all transactions were carried out within the blockchain. Today, there are protocols for order matching, and the funds are distributed among separate wallets via smart contracts. Core mechanisms can vary. For example, instead of order books, an Automated Market Maker (AMM) might be used. All trading operations occur as follows: users grant the platform access to their wallets via keys, and then the transaction is confirmed by smart contracts without intermediaries.
Criteria for Choosing a DEX to Buy Cryptocurrency
- Reputation. Alongside popular and promising platforms, there are also scam projects. To protect yourself and your funds, choose high-rated decentralized cryptocurrency exchanges.
- Trading costs. A DEX exchange may charge a commission fee to support the platform and reward users who boost liquidity. Updated trading terms should be checked on the platform’s website.
- Available trading pairs. Some protocols only support certain digital coins like TRON or ETH. Choose a platform with a wide variety of trading pairs.
- Ease of use. Trading operations on such exchanges are more complex than on centralized ones. Users need to understand key generation, wallet connections, etc. Choose a platform with a user-friendly interface to simplify the process.
How a Decentralized Exchange Works
Such platforms use smart contracts — automatically executed protocols. These help simplify the trading process between participants.
A decentralized exchange operates using three methods:
- On-chain order book. All transactions are recorded on the blockchain, including purchases, orders, and cancellations.
- Off-chain order book. Transactions occur elsewhere, and only the final transaction is recorded on-chain. Since orders are not stored in the chain, this method is less secure.
- Automated Market Maker (AMM). This method abandons order books. AMMs eliminate intermediaries and use special algorithms to form prices. Liquidity pools are used here. Users are paid to hold a portion of their funds in smart contracts used for trades. These users play a central role in facilitating trading operations.
Types of DEX Platforms
The way a decentralized exchange operates depends on its type.
Some exchanges require you to create a separate crypto wallet, set up a password, and store keys needed to access your funds.
Others operate in conjunction with wallets and only require a button click and password entry for transactions.
In both cases, users are not required to provide phone numbers, emails, or personal information. All trading operations are conducted anonymously.
Today, decentralized platforms can be divided into the following types:
- Order book-supported exchanges. Trading here is similar to centralized platforms. All user orders are placed in a single book, and an automated protocol processes the trades.
- AMM-based platforms. Any holder of digital currency can place it in a trading network. A smart contract is then created and listed. When new exchange requests are made, they are matched with these records. If matched by direction and volume, the order is executed.
- Aggregators. These merge DeFi with centralized platforms, allowing users to trade in networks where matching orders offer the best rates.
- Decentralized lending services. These issue loans secured by cryptocurrency. They can be used for additional income when interest rates on digital currencies change.
Advantages and Disadvantages
Pros:
- Anonymity. No identity verification required.
- Fund security. A DEX does not store users’ crypto, reducing risks from hacks or exchange failures.
- No single point of entry. These platforms use distributed ledgers, minimizing the potential for hacker attacks.
- Access to various projects. DEXs allow users to trade existing tokens or create new ones within the system.
Cons:
- No way to recover access. Mistakes or data loss cannot be corrected due to lack of identity verification.
- Limited trading features. Most DEXs don’t offer margin trading or loans due to smart contract governance.
- Low liquidity. Compared to centralized exchanges, DEXs often have less liquidity, fewer tools, and lower trading volume.
- No customer support for transactions or accounts. Users are solely responsible for their assets.
- Slow transaction processing speeds.
Top Decentralized Cryptocurrency Exchanges 2023
This ranking is based on key DEX selection criteria:
1. Uniswap
Uniswap is one of the most popular platforms in the cryptocurrency industry. Uniswap is an AMM (automated market maker), responsible for the interaction of buyers and sellers in the formation of market liquidity. The protocol of this platform works on the principle of eliminating liquidity pools. In a situation where participants wish to exchange tokens of decentralized cryptocurrency exchanges, they need to set up a liquidity pool. Further, the selected pool will be used to conduct the transaction.
The commission charged is from 0.3 to 1%.
Advantages:
- Anonymity
- High transparency and open-source code
- Wide variety of ERC-20 tokens
Disadvantage:
- Only supports Ethereum-based tokens
2. Curve
An ideal option for those who are interested in steyblocks. The platform is equipped with currency swap (exchange of certain cash flows), thanks to which it is possible to make trading operations with assets close in value. In this case, these are steyblocks with minimal commission tax.
This platform has the AMM protocol and is equipped with liquidity providers that receive commissions for deliveries.
The commission charged is from 0.05% per transaction.
Advantages:
- Simplified smart contracts
- Low risks
- Low fees
Disadvantage:
- Ethereum fee spikes
3. PancakeSwap
It supports a large number of VER 20 tokens (various cryptocurrency assets that do not have their own blockchain technology), a variety of trading functions.
In addition, DEX-exchange, this platform has functions – trading, lottery and income farms. Pancake Swap has a high level of security, thanks to two-factor authentication.
This platform has an automated token maker protocol and is designed to generate a level of liquidity and reliability.
The commission charged is from 0.25% per transaction.
Advantages:
- BEP-20 token support
- Rewards for providing liquidity
- Various trading features
Disadvantage:
- Not beginner-friendly; no native wallet
4. Sushiswap
Decentralized crypto exchange, through which participants have the opportunity to exchange virtual currencies on several second-level platforms supporting the Sushiswap protocol and in the blockchain system. Also on the platform there is an opportunity to lend and launch their own tokens.
This platform is an AMM, that is, you can add liquidity and receive premium bonuses for it.
The commission charged is from 0.3% per transaction.
Advantages:
- Cross-chain support
- Wide asset variety
- User-friendly interface
Disadvantage:
- Security concerns
5. QuickSwap
This platform is developed on the Ethereum network. It is one of the best decentralized cryptocurrency exchanges for cryptocurrency trading. The platform allows users to buy and sell ERC-20 tokens (standard token format on the Ethereum blockchain) with minimal commission.
The commission charged is 0.3%. It is fixed and does not depend on any parameters.
Advantages:
- Token listing without permission
- Low fees
Disadvantage:
- Low liquidity
Conclusion
DEXs allow users to exchange cryptocurrencies directly with one another. This concept is still developing, but more users are recognizing the benefits. The 2023 top decentralized exchanges list will help you choose the best platform.