> For the complete documentation index, see [llms.txt](https://docs.untrading.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.untrading.org/tutorials/web3.md).

# Web3

- [What is Web3?](https://docs.untrading.org/tutorials/web3/what-is-web3.md): Web3 is an umbrella term for the vision of a better internet; an internet with an added identity, money, and social layer.
- [How to Use the Polygon Network on Metamask on Chrome Extension](https://docs.untrading.org/tutorials/web3/how-to-use-the-polygon-network-on-metamask-on-chrome-extension.md)
- [How to Use Arbitrum MetaMask (Bridge, Swap, Trade, Withdraw)](https://docs.untrading.org/tutorials/web3/how-to-use-arbitrum-metamask-bridge-swap-trade-withdraw.md)
- [How to Bridge an ERC-20 Token to Arbitrum](https://docs.untrading.org/tutorials/web3/how-to-bridge-an-erc-20-token-to-arbitrum.md): Using the Arbitrum Bridge is the official method provided by Arbitrum. It's a user-friendly interface that works with most ERC-20 tokens.