Guide
What Is Layer 2? Making Ethereum Cheaper and Faster
Bottom line: process off-chain, settle on-chain
Layer 2 (L2) refers to networks built on top of a base chain like Ethereum. They bundle transactions off the main chain and record the result back to it — reducing congestion and gas fees.
Key takeaways
L1 is the base (secure but can be congested and pricey). L2 processes transactions more cheaply and quickly, then settles to L1. Examples: Arbitrum, Optimism.
Why it matters
Ethereum's base layer is secure but gets expensive when busy. L2s were created to fix that.
Cautions
| Benefit | Caution |
|---|---|
| Cheaper, faster | You "bridge" assets between L1 and L2 |
| Inherits L1 security | Check the bridge and supported apps |
Start small
Using an L2 needs a compatible wallet, the right network settings, and a bridge. Try a small amount first.
Sources
- Ethereum — Layer 2: https://ethereum.org/en/layer-2/
Not financial advice
This article is for information only and is not investment advice. Crypto assets are volatile and carry risks including hacking. Do your own research and only use money you can afford to lose.
This article is informational only and is not financial, investment, or trading advice. Prices are reference snapshots and may be outdated. Always do your own research.
