# What is Web3?

### Overview

Web3 is the next step in the internet’s evolution. Web1 let you read pages. Web2 let you read and post on platforms owned by companies. Web3 lets you own assets and interact peer-to-peer using blockchains. That shift reduces reliance on middlemen and enables global, programmable money and digital ownership.

### Core concepts

* Web1: Read-only websites.
* Web2: Read-write platforms run by companies.
* Web3: Read-write-own using blockchains and wallets.
* Decentralization: No single party controls the system.
* Trustless: Rules are enforced by code, not by promises.
* Blockchain: A shared database that many computers agree on.

### Key takeaways

* Web3 replaces platform accounts with wallets you control.
* Assets and actions are recorded on public ledgers.
* Code enforces rules; you do not need to trust a company.
* With ownership comes responsibility for security.


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