Top 5 Crypto Exchanges In 2021

By Casper Brown
Updated July 18, 2025

In the domain of cryptocurrencies, crypto exchanges are essential for trading virtual currencies and also exchanging your fiat holdings into digital assets and vice versa. It might often turn out to be overwhelming while opting for the right crypto exchange, especially if you are new to this industry. When selecting the right cryptocurrency exchange for your requirements, it is critical to consider certain factors including supported currencies, price, withdrawal methods, and security. Here is a compiled list of the best cryptocurrency exchanges available in the market right now to finalize the one that caters to your trading style and financial objectives.

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Swapzone

Swapzone was founded in 2019 and is headquartered in Georgia. It is a non-custodial, autonomous cryptocurrency exchange aggregator that crawls the network of all authorized cryptocurrency exchanges across the globe and displays a database of all platforms that provide the trading pairs requested. Swapzone explores the crypto and blockchain marketplaces with the intention of gathering all relevant data and other critical factors such as exchange rates, transaction periods, currency pairings, and so on. Swapzone is a fully free platform that does not need users to register or log in.

Pros of Swapzone

  • Easily compare blockchain-based securities and their trading values.
  • The trading comparison catalogues now include over 500 assets, available in just 1 platform.
  • Offers a free service that does not ask users to pay for subscription/registration.
  • They have an affiliate program that allows our partners to get percentage from each exchange if it was made through a referral link.

Cons of Swapzone

  • Certain cryptocurrency exchanges aren’t authorized, which might be a hindrance.
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ChangeNOW

ChangeNOW is a cryptocurrency exchange that was created in 2017. It is a crypto trading service that enables customers to conduct trades quickly and anonymously. It functions as a non-custodial platform for those who want to conduct secure and confidential crypto activities, such as fiat to crypto exchanges. Its primary goal is to give individuals a simple and efficient way to trade and exchange bitcoins. It does not keep users’ virtual investments since it offers non-custodial services; therefore member data privacy is protected.

Pros of ChangeNOW

  • It is a non-custodial service, which means it has no control over your cryptocurrency holdings.
  • There are no sign-ups required for accounts.
  • The amount of a transaction has no maximum limit.
  • There are around 300 currencies and over 50,000 trade pairs available.

Cons of ChangeNOW

  • Large trades are prone to increased costs.
  • Purchases made with a credit card incur an additional charge.
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LetsExchange

LetsExchange is one of the few services that provides a simple UI that uses SmartRate technology for instant crypto swaps. Primarily preferred by crypto traders, this renowned currency exchange offers unlimited free registration, simplified procedures, and automatic transactions. Founded in Seychelles, this platform was developed by a group of skilled experts in 2020. LetsExchange is a non-custodial service, which means it doesn’t keep track of its users’ funds or information. The platform’s currencies are also authenticated, and the information is secured through SSL certification and DDoS protection.

Pros of LetsExchange

  • Faster transactions than other platforms in the market
  • A user-friendly platform
  • More than 200 coins are supported.
  • Prompt customer service

Cons of LetsExchange

  • Cryptocurrencies are the only ones that may be exchanged.
  • There are no crypto wallets available.

FixedFloat

FixedFloat was founded in 2018 by a team of top crypto enthusiasts with the goal of creating a user-friendly, quick, and zero-fee automatic exchanger for the cryptocurrency community. FixedFloat is simple to use for both seasoned and inexperienced crypto users and requires just a QR code scan to conduct an exchange. The service ensures a secure transaction by requiring no registration and storing no user funds. FixedFloat is a crypto exchange that instantaneously converts one coin into another. Customers’ personal information is not collected, and their funds are not held by the entity.

Pros of FixedFloat

  • Exchange cryptocurrencies quickly and safely.
  • Two types of exchange rates are available: fixed and floating.
  • Prompt technical assistance available 24/7
  • Simple and easy to use UI

Cons of FixedFloat

  • No access to trade using fiat money.
  • FixedFloat only supports only the most common currencies as of now.

Changelly

Founded in 2015 in Prague, Changelly Crypto is a cryptocurrency trading website that lets users swap, buy, and sell over 170 different cryptocurrencies. Changelly has a number of advantages over its competitors, including an easy-to-use interface, features that help you locate the lowest exchange rate fast, and the ability to support a variety of currencies and payment options. Changelly Crypto offers a comprehensive set of instruments and services to help consumers purchase, trade, exchange, transfer, and benefit from their crypto investments.

Pros of Changelly

  • Is a non-custodial exchange
  • A simple and easy-to-use platform for beginners
  • Many prominent wallets and exchanges are supported.
  • Over 170 cryptos can be easily exchanged for a nominal cost.

Cons of Changelly

  • There is currently no telephonic assistance available.

 

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Casper Brown
I am an associate content producer for the news section of Coingape. I have previously worked as a freelancer for numerous sites and have covered a dynamic range of topics from sports, finance to economics and politics.
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