How does Lighter work?

Lighter is a zero-knowledge rollup DEX on Ethereum, built with custom ZK circuits. All operations—order matching, liquidations, settlements—are cryptographically proven and verified on Ethereum for full transparency. The protocol achieves high throughput and millisecond latency by batching trades, matching by price-time priority, and finalizing with ZK proofs.

Is Lighter a secure platform?

Lighter uses Ethereum smart contracts for non-custodial funds management, verifiable system state, and proof anchoring. The platform has completed protocol and ZK circuit audits, enforces fair liquidations, and supports emergency asset withdrawal via “Desert Mode.” Assets are always under user control until executed, with public proof validation ensuring integrity.

Users deposit assets into Lighter via Ethereum, then place limit or market orders on the DEX. Trades are matched instantly, confirmed by the ZK engine, and settled on-chain after batch proof submission. Withdrawals and account management operate through the user dashboard, with all activity tracked on-chain and viewable in real time.

What services does Lighter offer?

Lighter supports perpetual futures trading with leverage, CEX-like speed, and zero fees for retail users. It offers public verifiability for all trade logic, secure liquidations, and access to liquidity points programs. Institutional and retail traders benefit from high-frequency support, self-custody, and transparent fee structures.

Lighter: What is it and Why is it Important?

Primary features

Lighter is a high-performance perpetual DEX built on Ethereum Layer 2, utilizing custom ZK infrastructure to ensure scalability, security, and transparency.

Zero-knowledge rollup: Processes operations off-chain, generating ZK proofs for order matching and liquidations, which are verified on Ethereum.
High throughput: Capable of processing tens of thousands of orders and cancellations per second with millisecond latency.
Verifiable operations: All actions, including order matching and liquidations, are cryptographically proven and verified publicly on Ethereum.
Zero fees for retail traders: Offers zero fees for retail traders and competitive fees for high-frequency traders.
Ethereum settlement: Final settlement occurs on Ethereum, ensuring security and composability with the broader Ethereum ecosystem.

Work principles

Lighter operates as a custom ZK rollup, processing transactions off-chain and generating succinct proofs to verify the correctness of operations on Ethereum.

ZK proofs: Utilizes zero-knowledge proofs to validate order matching and liquidations without revealing sensitive data.
Private sequencer: Employs a private sequencer to organize transactions, enhancing performance and scalability.
Batch proving: Groups multiple transactions into a single proof, reducing costs and increasing efficiency.
Smart contracts: Implements smart contracts on Ethereum to verify proofs and update the system state, ensuring security and decentralization.

User benefits

Users of Lighter experience a decentralized trading platform that combines the benefits of Ethereum's security with the performance of high-frequency trading.

Low latency trading: Achieves millisecond-level finality, enabling fast and efficient trading.
Transparent operations: All trades and liquidations are verifiable through ZK proofs, ensuring fairness and trustlessness.
Zero fees for traders: Provides cost-effective trading options for retail users, with zero fees on trades.
High leverage options: Supports up to 50x leverage, catering to advanced trading strategies.
Security and composability: Leverages Ethereum's security model, allowing seamless integration with other Ethereum-based applications.

Lighter