Polygon
A multi-chain scaling ecosystem for Ethereum that provides high throughput and low fees.
Polygon (formerly Matic Network) provides a stack of tools to improve Ethereum's scalability and usability. Its primary flagship, the Polygon PoS chain, uses a Proof-of-Stake consensus mechanism and periodic checkpoints to the Ethereum mainnet. Beyond PoS, Polygon leads in Zero-Knowledge technology with Polygon zkEVM, which offers EVM equivalence for seamless dApp migration. By providing a decentralized infrastructure for many types of scaling, Polygon fosters a diverse environment for DeFi, gaming, and enterprise applications.
graph LR
Center["Polygon"]:::main
Pre_ethereum["ethereum"]:::pre --> Center
click Pre_ethereum "/terms/ethereum"
Pre_layer_2["layer-2"]:::pre --> Center
click Pre_layer_2 "/terms/layer-2"
Rel_zk_rollup["zk-rollup"]:::related -.-> Center
click Rel_zk_rollup "/terms/zk-rollup"
Rel_ark_protocol["ark-protocol"]:::related -.-> Center
click Rel_ark_protocol "/terms/ark-protocol"
Rel_state_channel["state-channel"]:::related -.-> Center
click Rel_state_channel "/terms/state-channel"
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🧒 Explain Like I'm 5
🌍 Imagine [Ethereum](/en/terms/ethereum) is a busy, expensive main highway. Polygon is a network of faster, cheaper side roads and high-speed rails that connect back to that highway, so you can travel quickly without the traffic jams.
🤓 Expert Deep Dive
Polygon's architecture has transitioned from a basic Plasma/PoS sidechain to a comprehensive ZK-powered ecosystem. The core innovation is the 'AggLayer', which uses recursive ZK proofs to aggregate state from multiple chains, enabling atomic cross-chain transactions without fragmenting liquidity. The Polygon CDK (Chain Development Kit) allows for the deployment of custom ZK-Rollups that benefit from Ethereum's security while maintaining sovereign execution environments. This modular approach positions Polygon as the 'Internet of Blockchains' for the Ethereum ecosystem.