Paste any code — get a quality score, bug detection, security analysis, performance suggestions, and improved code snippets. Like having a senior dev review your PR.
Review My Code Free No signup. Supports 14+ languages.SQL Injection: String concatenation in SQL query. Use parameterized queries instead.
Improved: db.query("SELECT * FROM users WHERE id = ?", [id])
Find actual bugs — not just style nitpicks. Off-by-one errors, null references, logic flaws, and more.
SQL injection, XSS, hardcoded secrets, unsafe deserialization — catch vulnerabilities before production.
Identify inefficient loops, unnecessary allocations, and algorithmic improvements.
See before/after comparisons. AI rewrites weak snippets using best practices and idiomatic patterns.
Overall score plus 5 sub-scores: readability, performance, security, best practices, maintainability.
Ask for tests, refactoring help, explanations, or alternative approaches via Q&A.
Drop in a function, a file, or a snippet. Auto-detects the language.
Quality scores, bugs, security issues, and rewritten code — all in seconds.
Need tests? Want a refactor? Ask the Q&A for deeper help on any part of your code.
Your code is sent to AI for analysis and is not stored, logged, or shared. It's processed and discarded.
AI catches many real bugs and security issues, but it's not a replacement for thorough testing or a human code review on critical systems. Think of it as a fast first pass.
Yes. No signup, no credit card, no limits right now.
Yes. Paste up to ~100KB of code. For very large files, consider pasting the most critical sections.
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