Know what your codebase became.
A deterministic health check for React and Next.js projects.
Codebase MRI scans your project and shows what changed beneath the surface — structural problems, oversized files and components, orphaned code, complexity signals, and the issues worth fixing.
No AI opinions. No server uploads. Just evidence from your code.
A health report built from evidence. Not a wall of lint warnings. Not an AI-generated code review.
Codebase MRI turns your project into a clear, weighted picture of its health — then lets you drill from the score down to the exact file, evidence, and recommendation.
Architecture
Find structural problems such as orphan files and dependency patterns that make a project harder to navigate.
Maintainability
Identify files that have grown beyond a reasonable size and become harder to understand or safely change.
Complexity
Surface components carrying too much state, logic, effects, or responsibility in a single place.
Technical Debt
Expose code that has been left behind by refactors, rapid iteration, and AI-assisted development.
SEE THE SIGNAL,
NOT THE NOISE
One score. Four categories. Every issue traceable.
Your project gets a weighted 0–100 health score, broken down across Architecture, Maintainability, Complexity, and Technical Debt.
Every deduction has a reason. Every issue has evidence. Every recommendation points to what you can do next.
FROM SCORE
TO SOURCE
Find the problem. Open the evidence.
See your highest-impact issues first, filter them by severity or rule, and drill into the exact finding.
What we found → Evidence → Recommendation
MRI shows you why it was flagged — line count, thresholds, symbol information, hooks, state, effects, props, and other measurable evidence. Then it gives you a concrete recommendation.
From project ZIP to codebase MRI in minutes.
Drop your project.
Upload a React or Next.js ZIP up to 200 MB. Your project stays in your browser.
Get your health score.
MRI evaluates your project using deterministic signals and produces a weighted 0–100 score across four categories.
Drill into the findings.
Explore issues, inspect the evidence behind each one, and see practical recommendations for improving the codebase.
BUILT FOR THE
CODE YOU HAVE.
Not the code you wish you had.
Whether the project grew organically, through a dozen refactors, or with a little help from AI — Codebase MRI gives you a grounded snapshot of where it stands now.
Just drop the project in and see what's there.
READY TO SEE YOUR
CODEBASE CLEARLY?
Find out what needs attention.