ARB
Arbitrum
ARB
—
24h —7d —
Market cap: —
The Ethereum layer 2 with the most DeFi activity: same guarantees, much lower fees.
- Category
- Layer 2
- Launched
- 2023
- Consensus
- Optimistic rollup on Ethereum
- Max supply
- 10.000M
Layer 2
Cryptocurrencies: Layer 2
This catalog groups 7 layer-2 solutions: networks built on top of another blockchain (usually Ethereum) to make transactions cheaper and faster while inheriting its security. The oldest in this group is Loopring (2017). Prices and market caps come live from CoinGecko — the static data below (consensus, supply, launch year) is each project's technical profile.
OP
Optimism
OP
—
24h —7d —
Market cap: —
A layer 2 whose software (OP Stack) also powers other major chains, such as Coinbase's Base.
- Category
- Layer 2
- Launched
- 2022
- Consensus
- Optimistic rollup on Ethereum
- Max supply
- 4.290M
POL
Polygon
POL
—
24h —7d —
Market cap: —
Ethereum's longest-standing scaling ecosystem (formerly MATIC), used by big brands for payments and NFTs.
- Category
- Layer 2
- Launched
- 2019
- Consensus
- Proof of Stake
- Max supply
- ~10.000M
STR
Starknet
STRK
—
24h —7d —
Market cap: —
A layer 2 based on zero-knowledge proofs (STARKs), cutting-edge scaling technology.
- Category
- Layer 2
- Launched
- 2024
- Consensus
- ZK rollup on Ethereum
- Max supply
- 10.000M
MNT
Mantle
MNT
—
24h —7d —
Market cap: —
A layer 2 born from the BitDAO ecosystem, with one of the largest treasuries in the industry.
- Category
- Layer 2
- Launched
- 2023
- Consensus
- Optimistic rollup on Ethereum
- Max supply
- 6.220M
CEL
Celo
CELO
—
24h —7d —
Market cap: —
A network focused on mobile payments and stablecoins in emerging countries; migrated from its own L1 to an Ethereum layer 2.
- Category
- Layer 2
- Launched
- 2020
- Consensus
- Ethereum L2 (formerly L1 PoS)
- Max supply
- 1.000M
LRC
Loopring
LRC
—
24h —7d —
Market cap: —
One of Ethereum’s first zero-knowledge layer 2s, built for trading and payments with minimal fees.
- Category
- Layer 2
- Launched
- 2017
- Consensus
- — (zkRollup on Ethereum)
- Max supply
- 1.374M
Frequently asked questions
What are layer 2 cryptocurrencies?+
They are layer-2 solutions: networks built on top of another blockchain (usually Ethereum) to make transactions cheaper and faster while inheriting its security. It's a grouping for browsing this catalog, not an official classification — some projects could fit in more than one category.
How risky is this category?+
High, like all crypto: volatility far above the stock market, no guarantee-fund protection, plus regulatory and technological risk. The basic rule: only money you can afford to lose entirely.
Where do the prices on this page come from?+
Live from the public CoinGecko API, refreshed while you browse. We never store or invent prices: if the API is unavailable, the price shows as "—" rather than a stale or made-up number.
Other categories
Market data from the public CoinGecko API; technical profiles are indicative. Nothing on this page is financial advice: cryptocurrencies are extremely high-risk assets with no guarantees.