ChainPick

OpenZeppelin vs Hacken (2026)

A head-to-head comparison of OpenZeppelin and Hacken — pricing, the features that actually differ, and which one fits which use case.

At a glance

O

OpenZeppelin

The most trusted smart contract security firm and audit partner

4.8(234)
Starting price
$799/mo
Free plan
Yes
Best for
Most recognized audit credential in crypto — signals highest institutional trust
Full OpenZeppelin review →
H

Hacken

Full-stack Web3 security firm spanning audits, pentesting, and compliance

4.4(167)
Starting price
On request
Free plan
No
Best for
Full-stack security beyond just contract audits
Full Hacken review →

Where OpenZeppelin and Hacken differ

These are the 5 capabilities where the two tools genuinely diverge — the rest of their feature sets overlap.

CapabilityOpenZeppelinHacken
Automated ScanningNoYes
Upgrade ManagementYesNo
Multi Sig GovernanceYesNo
Contract LibraryYesNo
Bug Bounty ManagementNoYes

Full feature comparison

FeatureOpenZeppelinHacken
Manual Audit
Automated Scanning
Continuous Monitoring
Upgrade Management
Multi Sig Governance
Public Reports
Emergency Response
Contract Library
Formal Verification
Bug Bounty Management

Pricing compared

Pricing models differ substantially between these two.

OpenZeppelin

OpenZeppelin

Contracts (OSS)

Free

  • Battle-tested contract library
  • ERC-20/721/1155 implementations
  • Access control patterns
  • Upgradeable proxy patterns
Get Started
Popular

OpenZeppelin

Defender Free

Free

  • 1 network
  • Basic monitoring
  • 1 relayer
  • Community support
Get Started

OpenZeppelin

Defender Pro

$799/mo

  • All networks
  • Unlimited monitors
  • Automated actions
  • Incident response
Get Started

OpenZeppelin

Audit Engagement

Custom

  • Manual expert review
  • Logic & economic analysis
  • Full report
  • Remediation review
Contact Sales

Hacken

Hacken

Audit Engagement

Custom

  • Smart-contract audits
  • Penetration testing
  • Proof-of-reserves + CEX audits
  • Compliance services
  • Quote-based engagements
Contact Sales

Which should you choose?

Choose OpenZeppelin if…

  • Most recognized audit credential in crypto — signals highest institutional trust
  • 200+ protocol audits including Ethereum Foundation, Coinbase, Aave, Compound
  • OpenZeppelin Contracts library is the standard foundation for 70%+ of EVM projects

Watch out: Audit waitlists of 3–6 months are common — not suitable for fast-moving launches.

Choose Hacken if…

  • Full-stack security beyond just contract audits
  • Pentesting, proof-of-reserves, and compliance
  • Good fit for exchanges and larger businesses

Watch out: Boutiques sometimes preferred for deepest contract review.

Our verdict

OpenZeppelin edges ahead on our editorial score (4.8/5), but these tools aren’t straight substitutes. Pick OpenZeppelin when most recognized audit credential in crypto — signals highest institutional trust matters most to your workflow; pick Hacken when full-stack security beyond just contract audits is the priority. The deciding factor is usually the trade-off you can least afford — OpenZeppelin means accepting that audit waitlists of 3–6 months are common — not suitable for fast-moving launches, while Hacken means boutiques sometimes preferred for deepest contract review.

Frequently asked questions

Is OpenZeppelin or Hacken better?

OpenZeppelin carries the higher editorial rating (4.8/5 vs 4.4/5), but they solve different problems. OpenZeppelin is the stronger pick when you need most recognized audit credential in crypto — signals highest institutional trust. Hacken wins when full-stack security beyond just contract audits.

Which is cheaper, OpenZeppelin or Hacken?

OpenZeppelin is free to use, while Hacken is priced on request.

What are the main drawbacks of OpenZeppelin and Hacken?

OpenZeppelin's main limitation is that audit waitlists of 3–6 months are common — not suitable for fast-moving launches. For Hacken, boutiques sometimes preferred for deepest contract review. Weigh these against how you actually plan to use the tool.

Can you use OpenZeppelin and Hacken together?

In most cases yes — many teams run both, using each where it's strongest. Since OpenZeppelin leads on most recognized audit credential in crypto — signals highest institutional trust and Hacken on full-stack security beyond just contract audits, the two are often complementary rather than mutually exclusive.