Development
AI Code Reviewer — Instant Feedback on Your Code
Paste your code and get a review covering bugs, security, performance, readability, and best practices.
What is AI Code Reviewer?
Cobain AI's AI Code Reviewer gives you a thorough review in seconds. Paste a function, file, or snippet and the AI flags potential bugs, security risks, and performance problems, then suggests cleaner, more maintainable ways to write it. It's a helpful second opinion for solo developers, a faster first pass before human review, and a great way to learn good practices.
Key features
Bug and risk detection
Flags likely bugs, unhandled cases, and security risks like injection or unsafe input.
Readability and maintainability
Suggests clearer naming, structure, and patterns to keep your code easy to maintain.
Performance hints
Points out inefficient loops, redundant work, and opportunities to optimize.
Best-practice guidance
Checks your code against common conventions and idioms for the language.
Many languages supported
JavaScript, TypeScript, Python, Java, C#, PHP, Go, SQL, and more.
Actionable suggestions
Each comment explains the issue and how to fix it, so you can act right away.
How it works
- 1
Paste your code
Drop in the function, file, or snippet you want reviewed.
- 2
Add context
Mention the language and what the code is meant to do for sharper feedback.
- 3
Read the review
Go through the flagged issues and suggestions, then apply the changes that fit.
Perfect for
Frequently asked questions
Is the AI code reviewer free?
Yes. You can start reviewing code for free with a Cobain AI account, with paid options for heavier usage.
What does the review cover?
Potential bugs, security risks, performance issues, readability, maintainability, and best-practice violations.
Which languages are supported?
Popular languages including JavaScript, TypeScript, Python, Java, C#, PHP, Go, and SQL. Mention the language for the best result.
Does it replace a human reviewer?
No. It's a fast, helpful first pass that catches many issues, but human review and testing are still important.
Can it explain its suggestions?
Yes. Each suggestion comes with a short explanation of the issue and how to address it.
Is my code private?
Your code is used to generate the review for you. Avoid pasting secrets or credentials, and remove sensitive values first.
Ready to try it?
Create your free account and start in seconds.
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