Stablecoins have become one of the most important pillars of the modern crypto economy. In an ecosystem marked by volatility and constant innovation, these cryptocurrencies offer stability, liquidity, and efficiency for use cases ranging from simple transfers to complex operations in decentralized finance (DeFi).

Although Bitcoin was the gateway to the digital crypto world, stablecoins are likely the main source of income for those still fearful of the sector's volatility.

In this article, we explain what stablecoins are, how they work, their most common uses, which are the most relevant projects in 2025, and what risks and regulatory trends you should consider.

What are stablecoins? And how many types exist?

Stablecoins are cryptocurrencies whose value is linked to a stable asset, generally a fiat currency like the dollar (USD), the euro (EUR), or even commodities like gold. Their main function is to reduce the typical volatility of assets like Bitcoin (BTC) or Ethereum (ETH), serving as a safe bridge between the traditional financial system and the crypto world.

There are three main categories of stablecoins:

  1. Fiat-backed
    These maintain reserves in traditional banks —usually in dollars or euros— to ensure a 1:1 parity with the issued stablecoin. They require trust in a centralized issuing entity. Examples:USDT (Tether), USDC (Circle) and FDUSD.

  2. Crypto-backed
    Maintain reserves in volatile cryptocurrencies (like ETH) and operate in a decentralized manner, using smart contracts. They use an over-collateralization mechanism (e.g., depositing 150 dollars in ETH to issue 100 dollars in stablecoin). Main example:DAI (MakerDAO).

  3. Algorithmic
    They try to maintain their parity by adjusting supply and demand through algorithms. They do not have real reserves, making them unstable. Many projects of this type have failed, such as the case ofUST/LUNA in 2022. Therefore, this model remains experimental.

A stablecoin, in any format, seeks to be a crypto with stable value —a kind of digital 'fixed exchange'.

Key advantages of stablecoins

These stablecoins have clear benefits for both individual users and businesses and governments. Some of the most notable:

  1. Low volatility
    Ideal for payments, contracts, or investments with lower exposure to price fluctuations.

  2. Fast and cost-effective transfers
    They operate on public blockchains (Ethereum, Tron, BNB Chain), allowing international fund transfers in seconds and at a very low cost, far below the SWIFT system or traditional remittances.

  3. Global access without friction
    Anyone with a mobile phone can use them without needing a bank account or credit verification.

  4. Base for DeFi
    They are essential in lending protocols,liquidity pools, synthetic derivatives, and decentralized governance.

  5. Protection against inflation
    In countries likeArgentina, Venezuela, or Colombia, where the local currency loses value rapidly, stablecoins are a key tool for preserving purchasing power in dollars.

The most important stablecoins of 2025 by market value

In June 2025, the stablecoin market exceeded 230 billion dollars, dominated by coins linked to the US dollar. The main ones are:

  1. Tether (USDT)

  • Market value: over 150 billion dollars

  • Issued by Tether Limited (Bitfinex group)

  • High liquidity and presence on Ethereum, Tron, Solana, Polygon

  • Still criticized for lack of transparency, although it has improved audits since 2023

  1. USD Coin (USDC)

  • Market value: over 60 billion dollars

  • Issued by Circle, with independent audits

  • Adopted by fintechs, banks, and DeFi protocols

  • Operates on Ethereum, Solana, Avalanche, Arbitrum, among others

  1. Dai (DAI)

  • Market value: nearly 5 billion dollars

  • Issued by MakerDAO, decentralized governance via MKR tokens

  • Collateralized with ETH, wBTC, and partially USDC

  1. FDUSD (First Digital USD)

  • Market value: around 1.5 billion dollars

  • Issued by licensed entities in Hong Kong

  • Strong backing from Binance, growing use in Asia

  1. TrueUSD (TUSD)

  • Market value: less than 500 million dollars

  • Notable growth in 2023–2024

  • Real-time auditing and programmable issuance

How to use stablecoins in 2025?

Today, stablecoins have multiple applications in daily crypto life. Some of the most common:

  1. Trading on exchanges
    They function as the base pair in trades (e.g., BTC/USDT), allowing entry and exit from the market without using fiat money

  2. International payments and remittances
    Ideal for sending funds between countries without banks or delays. A growing case in Latin America.

  3. Passive income (CeFi and DeFi)

  • On platforms like Binance Earn: fixed income by locking stablecoins

  • In DeFi: you can provide liquidity, lend coins (Aave, Compound) or do yield farming

  1. Hedge against market downturns
    Many investors move their funds to stablecoins in times of high uncertainty, as a temporary refuge.

  2. Means of payment in Web3
    More and more dApps, DAOs, and marketplaces accept stablecoins for payments of goods, services, or network fees.

Risks and regulations in 2025

Although they are more stable, stablecoins are not exempt from risks:

  • Structural collapse: as happened with UST (LUNA) in 2022

  • Regulatory risk: many are issued by private companies under possible government restrictions

  • Freezing of funds: in legal investigations or sanctions

  • Limited interoperability: not all are compatible with all networks

This year, several countries —including Mexico, Brazil, and the United States— advanced with specific regulatory frameworks for stablecoins. The rules require licenses, periodic audits, and proof of reserves, which can increase trust... although it could also limit innovation.

Stablecoins: stable access to the crypto world

Stablecoins are no longer just simple stable cryptos: they are the backbone of the ecosystem. They are a unit of account, means of payment, store of value, and base for financial innovation.

Understanding their functioning, benefits, and limitations is essential for anyone involved with cryptocurrencies, DeFi, or Web3.

Everything indicates that they will continue to grow, both in use and regulation. And if they manage to balance stability with decentralization, they could be the keys to the next wave of global adoption.

Do you already have stablecoins in your wallet?

#StablecoinRevolution #stablecoin #DAI #USDT #FDUSD‬⁩


---

Photo by user13883487, available on Freepik