Abitrum is a suite of Etheruem scaling solutions that make it easy to build and use decentralized applications.
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Suite refers to a collection of related tools, technologies, or products that are part of the Arbitrum ecosystem, all designed to scale Ethereum and support decentralized applications (dApps).
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Users interact with Arbitrum either through the Arbitrum bridge or by using dApps that have been deployed to an Arbitrum chain.
| Resource | Description |
|---|---|
| Arbitrum bridge | Lets you move ETH and ERC-20 tokens between Ethereum, Arbitrum, and select Arbitrum (Orbit) chains. |
| Arbitrum Portal | A directory of dApps on Arbitrum. |
| Quickstart (bridge) | Provides step-by-step instructions for first-time bridge users. |
Developers build Arbitrum dApps by deploying smart contracts to an Arbitrum chain.
| Resource | Description |
|---|---|
| A gentle introduction to Arbitrum | A technical introduction to Arbitrum's suite of scaling solutions. |
| Quickstart (Solidity) | Targeted at Web2 developers who want to deploy their first Solidity smart contract to Arbitrum. |
| Quickstart (Rust) | Targeted at Web3 developers who want to deploy their first Rust smart contract to Arbitrum using Stylus. |
It stands out as a Layer 2 scaling solution for Ethereum designed to improve the speed and reduce the cost of transactions, while still benefiting from Ethereum's security. It is one of the most popular and widely adopted Ethereum rollups.
Arbitrum uses a method called Optimistic Rollups, which assumes transactions are valid by default and only verifies them if someone disputes their validity.