If you want to understand where Ethereum activity has migrated to over the past two years, this page is the map. Layer 2 rollups now process roughly 5-10x more transactions per day than Ethereum mainnet, and their combined total value locked has climbed steadily through 2025 and into 2026.
The aggregate market cap figure above is the sum of every L2 token CoinGecko tracks — Arbitrum’s ARB, Optimism’s OP, Polygon’s POL, Starknet’s STRK, zkSync’s ZK, Mantle’s MNT, Linea’s token, Scroll’s SCR, Metis, Manta, Mode and the rest. It gives you a single number for “how much has the market priced the scaling layer at”. Compare it to the Layer 1 sector above and you can see the gap between the base chains and the scaling networks built on them.
The L2 Landscape in 2026
The top tier has settled into four names with real usage:
- Arbitrum — first-mover among optimistic rollups, deepest DeFi ecosystem on L2, largest TVL.
- Base — Coinbase’s L2, highest daily transaction count, no token, token questions remain open.
- Optimism — original optimistic rollup design, powers the Superchain ecosystem (Base, World, Unichain and more).
- Polygon (POL/MATIC) — was a sidechain, has pivoted hard toward ZK rollups via the AggLayer and Polygon zkEVM.
The ZK tier is smaller but growing fast:
- Starknet — Cairo language, Type 4 zkEVM, strong academic base.
- zkSync Era — Matter Labs’ EVM-compatible ZK rollup.
- Linea — ConsenSys’s ZK rollup, MetaMask integration.
- Scroll — Type 2 zkEVM aiming for full bytecode compatibility.
- Polygon zkEVM — Polygon’s own Type 3 zkEVM.
Then there are the application-specific and non-EVM L2s — Blast, Mode, Manta, Taiko, Mantle, Metis — each with its own angle.
Why L2 Fees Fell Off a Cliff in 2024
Before March 2024, L2 fees were usually 5-20% of mainnet. Good, but not transformational. Then EIP-4844 shipped Ethereum’s blob space: a dedicated data lane for rollup batches that was roughly 10x cheaper than calldata. Overnight, L2 fees dropped by 80-95% across the board, and the gap between mainnet and L2 widened from “noticeable” to “night and day”.
That single change is probably the reason Base could onboard millions of users in late 2024 and early 2025 — fees were simply no longer a barrier.
How to Use the Table
The table above is sorted by market cap by default. Flip to 24h change to see which L2 is moving today. When narrative rotates toward scaling — typically after an Ethereum rally — you will see all L2 tokens green in the same session.
For portfolio context, L2s are typically a higher-beta way to bet on Ethereum: if you think ETH will outperform, L2 tokens usually amplify that move. They also carry more concentrated risk — a single L2 losing its sequencer, getting exploited or having its token supply heavily diluted can erase a year of gains in a day.
For the broader Ethereum story see the Ethereum ecosystem sector and the Ethereum guide. For the live coin-level data, the prices page and the compare tool are the fastest way to stack two or three L2 tokens against each other.