Layer-2 blockchains evaluated on exit safety by L2BEAT stage, proof system, exit window and proposer and sequencer failure; EVM equivalence; maturity; and Ethereum data availability.
Ranked here: general-purpose layer-2 chains that settle to Ethereum, with state committed and withdrawals enforced on Ethereum, and open to any application. Not ranked here: sidechains that only checkpoint or bridge to Ethereum, chains built for one application or ecosystem, sovereign layer-1s, rollups that settle to another chain, and chains that have shut down.
#1 of 15 · published ranking
Arbitrum One
81ChainChoice Score
4199
Why it leads
Arbitrum One is 1 point ahead of OP Mainnet, mainly because it scores higher on its exit window.
Show the arithmetic
Ahead of OP Mainnet on exit window (+1.2 points)
Cost
$0.46 your cost/yr · Your transactions a year: 100
ReviewedNext review by Published Methodology v2026.11.1
How this page is reviewed
Reviewed means every product ranked on this page was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
No provider can pay for a position in this table. The code that computes this order cannot read which links carry a referral code, and every build proves it. Every score below rebuilds from the published criteria.Ranking v2026.11.1 · 8 criteria · 15 products · same inputs, same order
How we review · 15 ranked of 26 assessed · 8 criteria · 0 sponsor weight
How we review
15ranked
26assessed
8criteria
0sponsor weight
Recommendation first, comparison only if needed.
Reviewed and rechecked on the current cycle.
Commercial relationships disclosed before clickout.
Personal comparison
What L2 blockchains cost you
Your inputs update the cost column. The independent ranking stays fixed.
growthepie's median fee per transaction on the chain, the median of the last 7 daily medians, times your transactions, for a year. A median, not a fee schedule: a busy day, a heavy contract call or a deposit or withdrawal through Ethereum costs more. Excludes bridging to and from the chain.
RankProviderBest fitScoreYour cost
1
Arbitrum OneOptimistic rollup with full EVM-equival...Top ranked
EVM equivalence — 10/10Trade-off: Optimistic rollups carry a challenge/withdrawal window (about seven days) absent a fa...
81score
your cost/yr
Check availability for your country
Arbitrum One · arbitrum.io. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
2
OPOP MainnetThe original OP Stack optimistic rollup...
OP Mainnet · optimism.io. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
3
BaseCoinbase-built OP Stack rollup, EVM-equ...
EVM equivalence — 10/10Trade-off: Younger than the 2021-era rollups, so a shorter production track record
77score
your cost/yr
Check availability for your country
Base · base.org. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
4
InkKraken's OP Stack rollup for DeFi, at L...
EVM equivalence — 10/10Trade-off: Younger than the 2021-era rollups: public mainnet since December 2024
76score
Lowest at your inputs
Check availability for your country
Ink · inkonchain.com. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
5
UnichainUniswap Labs' DeFi-native OP Stack opti...
EVM equivalence — 10/10Trade-off: Newest chain here (mainnet 2025) — the shortest production track record
75score
your cost/yr
Check availability for your country
Unichain · unichain.org. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
EVM equivalence — 10/10Trade-off: Being wound down: the Arbitrum DAO's minimisation proposal moves Nova into "a minimiz...
73score
-Not published
Check availability for your country
Arbitrum Nova · nova.arbitrum.io. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
9 more assessed and ranked below — none of them hidden for commercial reasons.
Ranked on 8 published criteria weighted 10/10/14/8/18/10/18/12, which set goal alignment — 30 of the 86 points. The rest: regional access 20 (constant here), evidence depth 18 (constant here), ease of use 10 (constant here), institutional trust 8 (constant here). Profile match is shown in breakdowns but carries no weight.
How you can lose money here, and what the ranking scores
Control failure: a key or vote changes the rules, freezes or mints.
Scored by Exit window before an upgrade · 10% (Arbitrum One 2/10, OP Mainnet 0/10, Base 0/10)
Verification failure: an invalid state or transfer is accepted.
Scored by Ethereum data availability · 14% (Arbitrum One 10/10, OP Mainnet 10/10, Base 10/10)
Scored by Proof system · 18% (Arbitrum One 10/10, OP Mainnet 10/10, Base 10/10)
Liveness failure: the operator stops, censors you or loses data.
Scored by Withdrawals if the operator stops · 18% (Arbitrum One 10/10, OP Mainnet 10/10, Base 10/10)
Scored by Transactions if the sequencer censors you · 12% (Arbitrum One 10/10, OP Mainnet 10/10, Base 10/10)
Also scored, as cost, quality or a summary of several families: EVM equivalence (10%), Maturity & track record (10%), Rollup stage (8%).
Audit
Infrastructure
Methodology
2026.11.1
published 10 November 2026
Providers tracked
860+
across 121 categories
Last verified
1 October 2026
newest dated pricing or sentiment read
Named on the roster
2 people
managing directors · 6 automated processes
Decision guide
What matters most before choosing in this category
The best Layer-2 starts with whether you can leave with your funds without anyone's permission: L2BEAT records which chains let anyone propose state if the operator stops, which run a working proof system, and how far each has removed its training wheels. After that, EVM-equivalent chains run existing contracts unchanged, longer-lived chains are more battle-tested, and Ethereum-DA chains inherit L1 data security. A ZK rollup finalises to L1 faster and an optimistic rollup uses a challenge window; that tradeoff tailors your shortlist but is not scored. Pick on your priority, not on a headline gas number.
If the operator stopped tomorrow, could you still withdraw without anyone's permission?
Do you need faster L1 finality (ZK) or the deepest existing liquidity (Optimistic)?
Must existing EVM contracts run unchanged, or is EVM-compatible enough?
Do you require Ethereum-level data availability, or is an external DA layer acceptable for lower cost?
Current engine lead
The #1 overall and the scoring weights
Arbitrum OneData checked Oct 2026
Optimistic rollup with full EVM-equivalence, settling to Ethereum
Optimistic rollup with full EVM-equivalence, settling to Ethereum. Strongest on withdrawals if the operator stops (10/10): L2BEAT proposer failure: Self propose. "Anyone can be a Proposer and propose new roots to the L1 bridge." Weakest on exit window before an upgrade (2/10): L2BEAT exit window: 10d on the regular upgrade path, none for emergencies. "Non-emergency upgrades are initiated on L2 and go through a 8d delay on L2 and a 3d delay on L1." Published facts: Rollup: Optimistic (fraud proofs). EVM: equivalent. Mainnet: 2021. DA: Ethereum L1 blobs. Gas in ETH. Live gas feed-pending; TVL shown live for context (DefiLlama), not scored.
Best forEVM equivalence — 10/10
Main tradeoffOptimistic rollups carry a challenge/withdrawal window (about seven days) absent a fast-exit bridge
Verify before signupRollup: Optimistic (fraud proofs). EVM: equivalent. Mainnet: 2021. DA: Ethereum L1 blobs. Gas in ETH. Live gas feed-pending; TVL shown live for context (DefiLlama), not scored.
Weighted criteria
EVM equivalence10%
Maturity & track record10%
Ethereum data availability14%
Rollup stage8%
Proof system18%
Exit window before an upgrade10%
Withdrawals if the operator stops18%
Transactions if the sequencer censors you12%
Methodology
How this category is reviewed
Reviewed on eight sourced, dated criteria. Five read L2BEAT's risk entries: rollup stage, proof system, the exit window before an upgrade, whether withdrawals keep working if the operator stops, and whether you can force a transaction in if the sequencer censors you (66 of 100 points). Three read the chain's own documentation: EVM equivalence, maturity (years of public mainnet) and Ethereum data availability. Live TVL (DefiLlama, dated) is shown for context, not scored, because it measures adoption rather than whether you can leave. Gas cost is feed-pending, never estimated.
The order on this page is the published ranking for this category. Every criterion, weight and source behind it is on the methodology page.
Frequently asked
Questions people ask before choosing L2 chains
What is the safest Ethereum Layer-2?
Safety on an L2 is whether you can leave with your funds. We score it from five L2BEAT risk entries, read and dated: the rollup stage, the proof system that lets Ethereum reject an invalid state, the exit window before an upgrade takes effect, whether withdrawals keep working if the operator stops proposing, and whether you can force a transaction in if the sequencer censors you. Together they carry 66 of 100 points; EVM equivalence, maturity and Ethereum data availability carry the rest. A stage L2BEAT marks Under review is not re-scored until it is resolved, and live gas is feed-pending, never estimated.
Why is gas cost not in the ranking?
Live L2 gas changes constantly, so we mark it feed-pending rather than show a stale number, and we rank on permanent architecture — the facts that actually decide L2 security and portability. Live TVL is now shown for context (DefiLlama, dated) but stays out of the ranking, because TVL measures adoption, not those permanent facts. A live gas-fee feed is the planned next addition.
Optimistic or ZK rollup — which should I pick?
ZK rollups prove each batch with validity proofs, so withdrawals to L1 finalise faster; Optimistic rollups rely on a challenge window (often around seven days) but currently host the deepest L2 DeFi. If fast, trust-minimised L1 exit matters most, lean ZK; if liquidity and ecosystem depth matter most today, Optimistic chains lead.
Reviewed1 October 2026Method8 criteriaCategoryl2_chains
Not financial advice · For informational purposes only · Always do your own research
