- Introduction
- Crypto exchange types: Summary table
- Controlling entity or system
- Range of crypto offerings
- Fiat currencies supported
- User friendliness
- Custody of user funds
- Operational transparency
- Transaction speeds
- Privacy
- Security
- Liquidity and concentration risk
- Adoption rate
- The bottom line
Centralized vs. decentralized crypto exchanges—which should you choose?
- Introduction
- Crypto exchange types: Summary table
- Controlling entity or system
- Range of crypto offerings
- Fiat currencies supported
- User friendliness
- Custody of user funds
- Operational transparency
- Transaction speeds
- Privacy
- Security
- Liquidity and concentration risk
- Adoption rate
- The bottom line
Are you buying, selling, or trading cryptocurrencies? You’re probably using a cryptocurrency exchange to complete your transactions. These exchanges are either centralized or decentralized—a core design choice that affects almost every part of your trading experience.
Decentralized exchanges—like the blockchain technology on which they’re built—rely on consensus mechanisms, with data distributed across users. But centralized exchanges are undeniably more accessible. Which should you choose? The decision is about trade-offs—and priorities.
Key Points
- Centralized exchanges are the easiest to use, but perhaps least secure.
- Decentralized exchanges afford the most security and privacy.
- You can use a mix of both types of exchanges.
Crypto exchange types: Summary table
Before deciding which type of exchange you would like to use, you’ll need to assess not only your needs, but also your personal “crypto philosophy.” For example, do you trust your crypto assets with a single entity, or are you fully on board with the distributed nature of blockchain technology? Do you plan to trade a few of the top cryptocurrencies, or would you like access to thousands? And what about privacy, security, and platform transparency?
The following table summarizes the many criteria to consider. Take a look, then keep reading for a deeper explanation of each factor to help you decide.
| Exchange type | Centralized | Decentralized |
|---|---|---|
| Controlling entity or system | Single entity | Distributed system |
| Range of crypto offerings | Moderate | High to moderate |
| Fiat currencies supported | High to moderate | Moderate to low |
| User friendliness | High | Low |
| Custody of user funds | Crypto exchange | Exchange user |
| Operational transparency | Moderate to low | High |
| Transaction speeds | High | Moderate to low |
| Privacy | Moderate | High |
| Security | Moderate to low | Moderate to high |
| Liquidity and concentration risk | Moderate to low | Moderate to high |
| Adoption rate | High | Low |
Controlling entity or system
A centralized exchange (CEX) is controlled by a singular group or entity, such as a privately held company or publicly traded corporation. The controlling entity is fully responsible for all aspects of the platform’s business.
A decentralized exchange (DEX) is governed by a technology protocol that enables a large group of people to participate in cryptocurrency exchange on a peer-to-peer basis. DEXs rely heavily on smart contracts as the “controlling entities” that determine how the decentralized exchange operates.
Range of crypto offerings
If you’re looking for the biggest selection of cryptocurrencies, then you’ll likely find it on a decentralized exchange. Users can buy nearly any digital token on decentralized exchanges, whereas centralized exchanges limit their offerings.
CEXs actively curate the cryptocurrencies they list, typically conducting extensive vetting to ensure that listed tokens meet specific quality standards. In contrast, the open architecture of decentralized exchanges enables nearly any token to be listed, without permission, provided that it meets the technical requirements of the exchange.
Fiat currencies supported
Centralized cryptocurrency exchanges typically support a variety of government-backed fiat currencies. Users can deposit, withdraw, and trade directly with currencies like the euro and U.S. dollar. Centralized exchanges make support for fiat money possible by establishing banking relationships with traditional financial institutions.
CEX before DEX
Want to use a decentralized exchange but don’t hold any digital tokens? You can first access a centralized exchange to trade your traditional money for crypto, and then use that crypto to begin trading on a DEX.
User friendliness
Centralized crypto exchanges are generally easy to use, while decentralized exchanges require some specialized knowledge to access. If you want your trading experience to feel friendly, then you’ll probably be most satisfied with a CEX.
What detracts from the usability of decentralized crypto exchanges? Many of the components that are core to DeFi (decentralized finance):
- You need a digital wallet—which must be compatible with the DEX.
- You must securely manage the private keys (akin to a password) to your digital wallet.
- You need to understand gas fees, which can be complex and variable.
And if something goes wrong and you need customer support—good luck getting that from any DEX.
Custody of user funds
“Not your keys, not your coins.” This popular saying among crypto enthusiasts emphasizes how centralized crypto exchanges retain custody over users’ assets held on the exchange—while DEX users have full control over their digital assets.
Centralized exchanges support custodial digital wallets, managing the private keys for those wallets on behalf of users. Decentralized exchanges are compatible with non-custodial digital wallets, enabling users to connect a wallet for trading while retaining full sovereignty over the wallet and its assets. DEX users don’t need to trust that the exchange will responsibly manage their digital holdings.
Operational transparency
Decentralized exchanges have total operational transparency, meaning every function performed by a DEX is governed by code and published to a blockchain. The operations of centralized exchanges are significantly more opaque, especially if the exchange is a privately owned company.
Using a DEX, you may explore smart contracts and other code governing the exchange, view real-time trading activity, and check liquidity levels. CEXs may disclose some operational information, but activities such as internal trade-matching, liquidity management, and decision-making are typically conducted privately.
Transaction speeds
Centralized exchanges typically boast the fastest transaction speeds. By controlling the platform infrastructure, CEXs can match trades internally without requiring every transaction to be settled on the blockchain. A DEX relies on a blockchain network for every trade, which increases the time to settlement.
Transaction speeds on DEXs may also be more variable. If blockchain network capacity is in high demand, then processing times for DEX transactions are likely to increase.
Privacy
Want privacy? Decentralized crypto exchanges can enable users to transact in an anonymized way. Centralized exchanges are required by federal regulations to collect users’ personal information at the time of registration.
Using a CEX, you’ll likely need to provide personal data and identification to comply with Know Your Customer and Anti-Money Laundering rules—consistent with the regulatory requirements of typical brokerage accounts. DEXs collect no such information, enabling you to trade simply by connecting your digital wallet.
Security
Are CEXs or DEXs more secure? That depends on how one defines “security.” Decentralized crypto exchanges can be safer than CEXs because users’ personal and digital wallet information is not collected or held in any central location. But the smart contracts associated with DEXs can also pose security risks, as vulnerabilities in the code may be identified and exploited, and could result in theft of your crypto assets.
Because they store personal information and large amounts of user funds, centralized crypto exchanges are attractive targets for cyberattacks. The CEX structure creates a single point of failure that represents a potentially major security risk. But centralized exchanges are, in general, more aggressive in setting up compliance protocols consistent with securities regulations. Still, the regulatory framework for both exchange types has been slow to develop.
Liquidity and concentration risk
Centralized exchanges typically have higher trading volumes than DEXs—a characteristic that increases trading liquidity and reduces concentration risk. (Concentration risk typically rises in small user groups when many users are likely to act cohesively.) Decentralized exchanges, especially those with low trading volumes, can face liquidity shortages or be affected by concentrated buying or selling activity.
Adoption rate
The adoption rate of centralized exchanges is exceeding that of DEXs. Perhaps because centralized crypto exchanges are more accessible and easier to use, they have historically attracted more investors and traders.
Key factors driving CEX vs. DEX adoption rates include:
- Ease of getting started
- Availability of customer support
- Compatibility with fiat currency
- General brand awareness
DEX adoption is growing, too, but the steep DeFi learning curve has been a deterrent for many potential users.
The bottom line
Using a centralized cryptocurrency exchange is a great starting point—but your trading journey doesn’t need to end there. As you grow your crypto portfolio and become more DeFi savvy, you may be drawn to peer-to-peer trading via a decentralized platform. Before making any crypto exchange selection, be sure to conduct plenty of your own research to choose the trading environment that’s right for you.