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Private Swaps Comparison · 2026

MEV Blocker vs Flashbots Protect

Which is better in 2026? We compare MEV Blocker and Flashbots Protect side by side — pricing, features, pros & cons — so you can choose the right Private Swaps tool.

🏆 Flashbots Protect has the higher rating (4.4/5)
M

MEV Blocker

★4.3

Free RPC endpoint by CoW Protocol that protects Ethereum transactions from frontrunning and sandwich attacks. Users get rebates from backrunning.

PricingFree
CategoryPrivate Swaps
Rating4.3/5
Visit MEV Blocker →Full profileMEV Blocker alternatives →
🏆 Higher Rated
F

Flashbots Protect

★4.4

Free RPC endpoint from Flashbots that sends transactions directly to block builders, bypassing the public mempool to prevent frontrunning and sandwich attacks.

PricingFree
CategoryPrivate Swaps
Rating4.4/5
Visit Flashbots Protect →Full profileFlashbots Protect alternatives →

Feature Comparison

FeatureMEV BlockerFlashbots Protect
Frontrunning protection✓✓
Sandwich attack protection✓—
Backrun rebates✓—
Easy RPC setup✓—
Works with any wallet✓—
Private transaction pool—✓
Fast inclusion mode—✓
Revert protection—✓
Builder network access—✓

Pricing Comparison

MEV Blocker

Free

Completely free to use with no paid tiers.

View pricing →

Flashbots Protect

Free

Completely free to use with no paid tiers.

View pricing →

Pros & Cons

MEV Blocker

👍 Pros

  • +Free to use
  • +Rebates from backrunning
  • +Simple RPC swap in wallet
  • +Broad wallet compatibility

👎 Cons

  • −Ethereum only
  • −Slight delay on transactions
  • −Rebates vary

Flashbots Protect

👍 Pros

  • +Free to use
  • +From the Flashbots team
  • +No failed transaction costs
  • +Easy wallet integration

👎 Cons

  • −Ethereum only
  • −Transactions may be slightly slower
  • −Limited to supported builders

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