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Glossary

Web3

Web3 describes a vision of the internet built on blockchains, in which users own their identity, data and assets directly rather than entrusting them to centralized platforms. It is often contrasted with “Web2,” the era of large platform companies.

How it works

In a Web3 application, users connect a self-custody wallet instead of creating an account with a username and password. Assets such as tokens and NFTs live on-chain under the user’s keys, and much of the application logic runs in public smart contracts. The aim is for value and control to sit with users and open protocols rather than with a single company’s servers.

Why it matters

Web3 reframes ownership and identity online, with implications for finance, gaming, social media and creator economies. It remains an evolving idea: real systems often mix on-chain and off-chain parts, and usability and scalability are still being worked out.

Example

Logging into an app by connecting a wallet, and carrying your assets between apps, is a Web3 pattern.

Web3: Frequently Asked Questions

How is Web3 different from Web2?
Web2 is the era of large platform companies, where users entrust their identity, data, and assets to centralized servers. Web3 envisions an internet built on blockchains, where users own those things directly. In practice, you connect a self-custody wallet instead of creating an account, and assets live on-chain under your own keys.
What does using a Web3 application look like?
In a Web3 app, you connect a self-custody wallet rather than signing up with a username and password. Assets such as tokens and NFTs live on-chain under your keys, and much of the application logic runs in public smart contracts. Logging in by connecting a wallet and carrying assets between apps is a typical Web3 pattern.
Is Web3 a finished technology?
No, it remains an evolving idea rather than a finished system. Real applications often mix on-chain and off-chain parts, and challenges around usability and scalability are still being worked out. The aim is for value and control to sit with users and open protocols rather than a single company, but that goal is a work in progress.