Euler Finance

Euler Finance is a DeFi lending platform on Ethereum. It lets you lend and borrow crypto without banks. In 2025, it is growing fast after a strong comeback from the 2023 hack.

9.5
  • Soft liquidations
  • Feeless flash loans
  • TWAP oracles
  • Multi-chain support
  • Reward streams
  

If you are into crypto and want to lend or borrow without the usual headaches, Euler Finance might be your next stop. We will teach you how it works, what makes it stand out, and if it’s right for you.

What is Euler Finance?

Euler Finance is a DeFi lending platform. In simple words, it’s a place where you can lend crypto to earn interest, or borrow crypto by putting up collateral. No banks, no middlemen. Just smart contracts on Ethereum.

DeFi lending itself is easy to explain. Imagine a friend asks to borrow your bike. You say “Sure, but leave your phone here until you bring it back.” If they don’t return the bike, you keep the phone. That’s how collateral works in DeFi.

Euler Finance takes this to the next level. It’s permissionless. That means anyone can create lending markets for new tokens. You don’t need to wait for the team to approve it. If there’s demand, it can exist.

Since 2024, Euler has expanded beyond Ethereum. With V2, it’s now multi-chain. That means you can use it on different blockchains. More chains, more users, more options.

In 2025, Euler has about $1.6B Total Value Locked (TVL). That means users have put that much money in the system to lend or borrow. It’s not as big as Aave or Compound, but still strong.

Euler Finance TVL Shown from DeFiLLama

A Quick History: From Hack to Comeback

No review is complete without history. And Euler’s history is dramatic.

In March 2023, Euler was hit by a flash loan attack. Hackers drained almost $200M worth of assets. It was one of the biggest exploits in DeFi history.

But here’s the twist. Unlike many projects that die after such a blow, Euler made a comeback.

  • 2023: Hack happens. Community is shaken.
  • Late 2023: Hackers return some funds after pressure. Team promises a rebuild.
  • 2024: Euler V2 launches. Better audits, stronger risk tools, and something called EVC (Euler Vault Connector). This lets vaults interact in safer ways.
  • 2025: Euler is back with $1.6B TVL and growing.

The comeback story matters because it shows resilience. Many DeFi projects never recover. Euler did.

How Does Euler Finance Work?

Let’s go through how Euler works. Think of it as a tutorial.

Deposit Assets

You start by connecting your wallet (like MetaMask). Choose a token, for example USDC, and deposit it. Once it’s inside Euler, you start earning interest right away.

Borrow Against Collateral

If you want to borrow, you pick another token. To unlock it, you must lock some of your deposit as collateral. Example: You deposit $1,000 USDC and borrow $500 worth of ETH.

Interest Rates

Rates move with supply and demand. If lots of people want to borrow ETH, rates go up. If fewer people borrow, rates go down.

Liquidations

If your collateral drops in value, you can get liquidated. But Euler uses soft liquidations, which are less scary than hard ones. Instead of losing everything, you lose just enough to fix your ratio.

Risk Tiers

Euler has different levels of risk:

  • Isolation Tier: For risky assets. Only used as collateral in limited ways.
  • Cross Tier: Safer assets that can interact more freely.
  • Collateral Tier: The most trusted assets, like ETH or USDC.

This system keeps the platform safe.

What Makes Euler Different

Here are the top Euler Finance features that stand out:

Permissionless Market Creation

Anyone can create a lending market for a token. No approvals needed. This keeps Euler open and innovative.

Modular Vaults (EVK)

The Euler Vault Kit lets developers build custom lending pools. You can design your own rules and strategies.

Feeless Flash Loans

You can borrow huge sums in one transaction, as long as you pay it back right away. Unlike Aave, Euler doesn’t charge a fee for these.

TWAP Oracles

Euler uses Time Weighted Average Prices from Uniswap. This avoids sudden price spikes or manipulation.

Soft Liquidations

Instead of wiping you out, Euler liquidates step by step. That makes it less stressful for borrowers.

Reward Streams

Users can earn extra yield without needing to stake tokens manually. It flows directly.

Each of these features helps different types of users. Beginners enjoy softer liquidations. Developers love modular vaults. Traders use flash loans.

The EUL Token Governance and Rewards Explained

The EUL token is Euler’s native token.

  • Total Supply: 27,182,818 EUL
  • Circulating Supply (2025): ~19,8M
  • Utility: Governance (voting on proposals), staking for fee rewards
  • Price History: Dropped after 2023 hack, but recovering since V2

Tokenomics Table

AspectDetails
Total Supply27,182,818.28 EUL
Circulating19,815,561.18 EUL
UtilityVoting, staking for fees
Price HistoryPost-hack dip, recovery

How to buy? You can get EUL on Uniswap, Coinbase, and other major crypto exchanges.

Is it a good hold? That depends. EUL gives governance power, and as Euler grows, governance matters more. But it’s still a risky DeFi token.

Pros and Cons Real Talk on Using Euler

Let’s keep it honest.

ProsCon
Permissionless – no limitsHigher risk for new assets
Multi-chain supportTVL smaller than Aave
Innovative toolsLearning curve

Is Euler Finance Safe? Security Breakdown

Security is always the big question.

Euler had a massive hack in 2023. That’s the red flag. But since then, they’ve worked hard to rebuild trust.

  • Audits Euler V2 was audited by top firms. Reports are public.
  • Bug Bounties White-hat hackers can earn money for finding bugs.
  • Insurance Users can buy coverage from DeFi insurance providers.
  • Risk Tiers Isolation and collateral tiers reduce systemic risk.

Compared to Aave and Compound, Euler is newer but more flexible. The risk is higher, but so are the rewards.

How to Get Started with Euler Lend or Borrow in Minutes

Step 1: Connect Wallet

Use MetaMask, Coinbase Wallet, or any Web3 wallet.

Step 2: Choose Asset

Pick what you want to deposit. Start with something stable like USDC.

Step 3: Deposit

Click deposit, confirm transaction. Done. You now earn interest.

Step 4: Borrow

If you want, select another asset to borrow. Remember collateral rules.

Step 5: Monitor Ratios

Keep an eye on health score. If it drops too low, you risk liquidation.

Step 6: Repay and Withdraw

When ready, repay borrowed tokens and withdraw your deposit.

Tip for beginners: Start small. Test with $50 before going big.

Euler Finance is not for everyone.

If you’re a beginner in crypto, you may find it complex. The hack history may also scare you.

But if you’re a DeFi pro, a yield farmer, or someone who likes permissionless innovation, Euler is worth a try. Start small, test features, and learn.

Facts

Founded 2021
Founders Michael Bentley (CEO), Doug Hoyte (CTO), Jack Prior (COO)
Headquarters London, UK (remote-first team)
Native Token EUL

Frequently Asked Question

What is Euler Finance?

It's a DeFi lending platform where you can lend and borrow crypto without banks.

How much can I borrow on Euler?

It depends on your collateral. Usually between 50% to 80% of its value.

Is Euler Finance safe?

It was hacked in 2023 but V2 has strong audits and bug bounties. Still, DeFi is always risky.

What is the EUL token used for?

Governance and staking for fees.

Where can I buy EUL?

On Uniswap, Coinbase, and other exchanges.

How do soft liquidations work?

They sell just enough of your collateral to fix your ratio, not everything.

Is Euler better than Aave?

Euler is more flexible. Aave is bigger and safer. Depends on your needs.

Can I use Euler on chains other than Ethereum?

Yes, Euler V2 is multi-chain.

What are TWAP oracles?

They average prices over time to avoid manipulation.

Should I invest in EUL?

Only if you believe in Euler long term. Always do your own research.

Marten
Written by Marten

I'm Marten, a crypto nerd and tech writer who’s been deep into blockchain since 2015. I started with Bitcoin trading and later got into Ethereum and smart contracts. Over the years, I’ve tested all kinds of platforms, from DeFi tools and P2P betting sites to Web3 apps. On kryptium.co, I write simple and honest articles to help people understand what’s happening in crypto. I focus on real stuff: how things work, what tools are worth using, and what to watch out for. My background in software development helps me break down complex topics so others can actually use the info. I believe in open, decentralized systems and think crypto should be easier to understand, even for beginners. That’s what I try to do with every post I publish.