Stablecoins are a special type of cryptocurrency that, unlike Bitcoin or Ethereum, have low volatility. Their main function is to provide stability in value amidst the high variability of the crypto market. They are pegged to the prices of commodities (gold, oil) or fiat currencies (dollar, euro, yuan), which allows for a relatively constant exchange rate.

Their main advantage is that they allow for preserving money in a digital equivalent of stable fiat currencies (dollar, euro), while also enjoying all the benefits of crypto: decentralization, security, transaction speed.

Thus, stablecoins address one of the key problems of the crypto market - high volatility. They make cryptocurrencies a more reliable means of saving and accumulating money.

Moreover, stablecoins are characterized by a different mechanism of operation. Unlike decentralized cryptocurrencies like Bitcoin, many popular stablecoins (Tether, USD Coin) have a centralized management structure.