Harmony is an open and fast blockchain. Our mainnet runs Ethereum applications with 2-second transaction finality and 100 times lower fees.

Form a DAO

Harmony at ETH DenverHarmony at ETH Denver
2.02 sec
Transaction Finality
Average Cost Per Transaction
$1.09 Billion
Total Value Locked
Get Connected to our Multi-Chain World.
Check out these dApps spanning web3, NFT’s, defi & more.
showcase dapps
DeFi KingdomsTranquilViperHermesDeFi MarsColony
CoinMarketCapDeFi LlamaDEX Screener
Harmony Is
Leading The Race
Blue hand holding a snowglobe-like object filled with colorful objects
Compute Model
Geth EVM 1.9.9
ZincVM (restricted ops)
Cairo (restricted ops)
OVM (recompile needed)
Geth EVM 1.10.1
Trust Model
Data on Harmony, On-chain slashing
Data on ETH PLONK setup
Data on 7-member committee, STARKS
Collusion-resistant, Single sequencer
Commit chain, 5-multisig upgrade
Finality on Ethereum
2 secs + 6 mins
10 mins + 6 mins
3 mins + 6 mins
1 week
34 mins / 3 hours
Bridging Fees
200k gas per tx w/ BLS checkpoints
Prover + 510k gas + 400 gas per tx
2m gas per 150 tx
21k gas per tx + nuisance gas
295k gas per tx
Economics Security
$700M staked w/ 154 open points
None for validity proofs
Single operator
Zero-cost attacks capital efficiency
$2.8b staked w/ 110 validators
Bridge Launch
Oct 2020
Jun 2020
Jun 2020
Jan 2021
Sep 2020
Sushi, Binance / Bitcoin Bridges
Curve, Argent, ZKSwap
Deversifi Immutable, dYdX
Synthetix, Uniswap
Aave, Sushi, Curve

Bridging Ecosystems

Harmony’s interoperability frees users from being locked on a single platform. The future of web3 is a multi-chain ecosystem, and Harmony’s bridges can connect any Proof-of-Work and Proof-of-Stake chains.

Bridging Ecosystems

Open Community

Harmony is granting $300 Million to our open DAO Community.
Bring your passion, your dreams & your expertise. Form a DAO.


The Metaverse

The Metaverse unites culture with technology, providing a unique market-product fit to accelerate Web3 adoption.
DeFi Kingdoms, Web3's most played game, was born on Harmony’s open platform. This gamified blockchain project, melds the power of decentralized finance with the utilities of NFTs in a play-to-earn setting.

Zero Knowledge Proofs
2 second Finality

2 Second Finality

Fast 2-second finality allows for trustless, irrevertible transactions at low fees.

2 second Finality

Scalable, Secure & Decentralized

Harmony balances these three critical pillars with secure, random state sharding.  Security against single shard attacks is guaranteed by leveraging 250 nodes per shard and cryptographic randomness to re-shard regularly.

Zero-Knowledge Proofs

100x benefits & magical uses

Zero-knowledge proofs (ZKP) and cryptography primitives are fundamental innovations for Web3’s future. We created the zkDAO and zkU courses to bring the best research to production and educate our open community of developers.

Zero Knowledge Proofs

Founder's notebook

2022 Roadmap

2022 Q1
Trustless Bitcoin bridge
ZKProof course
Social NFT wallet
Staking contract
Cross-Chain to OpenSea
2022 Q2
“Blue To Fly” social tokens
Elastic endpoints
Game shard
Opolis for DAOs
2022 Q3
State pruning
Cosmos bridge
Trustless Etherum bridge
Cross-shard transactions
Decentralized networkFast streaming sync
2022 Q4
1-Second Finality
Decentralized ops
zkSync rollups
Private authentication
ONE annual conference
Harmony at ETH Denver
Blue to fly
Blue Metaverse
Create Wealth in Harmony
ONE's Future