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Secure your
smart contracts.

Top auditors compete to keep high severity bugs out of production. Start a public or private audit within 48 hours.


high-severity vulns


unique findings


registered wardens


audits completed

Leading crypto projects choose Code4rena.

There's a reason why.

Don't just take our word for it.

With C4, it’s like an order of magnitude improvement over other ways of doing audits. The number of bugs, the degree to which I was convinced people had looked into the code and found everything to be found, was much higher due to the engagement, the variety of things reported, and the incentive mechanism.

Reserve Protocol

One of the things I enjoy most about competing on @code4rena is getting to read lots of code and see new techniques in the wild.


We greatly enjoyed our @code4rena experience - here's why it is the best value in auditing: quick spin-up time, flexible bounty awards, open nature means more eyes on your code, by our count ~10x more vs traditional audit shops, helpful community of wardens and judges


After grinding for 14 months I finally reached my goal of being the first to cross 1M$ on the @code4rena leaderboard. Thanks to everyone involved, this has been very fun, lucrative, and I learned a lot by seeing other wardens' vulnerabilities that I missed.


Just went through the latest @code4rena audit report of the @blur_io exchange. This report is a great example of why audits are so important - wardens were able to discover a high risk exploit that would've allowed sellers to steal funds from buyers.


These @code4rena payouts are ridiculous. I'm tempted to drop everything and tunnel vision that


C4 wardens > any single audit shop IMO


Thank you to all of the wardens who have been working on our code base. So many great questions and so many many of them. I hope you'll all come try it out when we're live and critique the user experience from top to bottom. 10/10 would work with y'all again.


Our experience with Code4rena has been great. After a very short lead time and smooth onboarding, many experienced security researchers analyzed our code in depth and provided valuable feedback. In addition to security-related findings, we also received useful optimization suggestions.

Canto Identity Protocol

I think @code4rena is a 10x improvement on smart contract audits. They're timely, have transparent pricing and source a lot of great developer attention.


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