Polygon is a blockchain platform built to make using Ethereum faster and cheaper. It was created to address two specific problems on Ethereum: high transaction fees and slow processing. Polygon handles transactions on its own network and then commits them back to the Ethereum mainnet in batches, so users get lower costs and quicker confirmations while still anchoring to Ethereum's security. The aim is a multi-chain system that stays compatible with Ethereum rather than replacing it.
Compatibility is the core idea. Applications and tools built for Ethereum can move to Polygon with little change, because Polygon is designed to work with the same standards and developer tooling. That has made it a common home for projects that want Ethereum's reach without Ethereum's fees, from decentralized finance apps to games and consumer products. The network runs Polymarket, a large prediction market, and has been used in tie-ups with companies including Starbucks and Mastercard.
The project started in 2017 as Matic Network, launched by four software engineers: Jaynti Kanani, Sandeep Nailwal, Anurag Arjun, and Mihailo Bjelic. In February 2021 it was rebranded as Polygon Technology, a name meant to reflect a broader goal than the original payments-focused product. Under the hood it uses a proof-of-stake system: participants stake the network's token in exchange for the right to validate transactions, and validators earn rewards in proportion to the amount they stake. Staking also means agreeing not to trade or sell those tokens while they are committed, which gives validators a stake in behaving honestly.
The token is worth getting right. The network's original token traded under the ticker MATIC. Its native token is now POL, an ERC-20 token that keeps compatibility with other Ethereum-based assets. POL is the current symbol and MATIC is the previous name. POL is used to pay for activity on the network and to stake for the right to validate.
Polygon's place in crypto is as one of the most widely used ways to scale Ethereum. Instead of trying to be a standalone rival to Ethereum, it positions itself as a layer that extends Ethereum's capacity, letting more people transact at lower cost while keeping a link back to the main chain. Cheap, Ethereum-compatible throughput is what it is best known for.