DEAD CODE DETECTION
The dead code detection tool that proves it's dead before you delete.
Mapnostics combines code-graph analysis with semantic AI reasoning to uncover unused symbols, unreachable code, and orphaned files. Each finding comes with evidence, confidence, and false-positive protection — so you verify instead of guess.
Safely find and remove unused code with confidence
Evidence, not guesswork
Every finding shows why it is dead — the compiler-backed symbol graph plus the semantic read that catches what static analysis alone misses.
Confidence you can act on
A 100% confidence flag has zero references anywhere in the codebase. Lower scores tell you exactly what to verify before you delete.
False-positive protection
Dynamic imports and string-based requires are flagged as unknowns, not false confirmations — so a clean scan is a scan you can trust.
Find your dead code in under 2 minutes.
Analyze my codebase →No credit card required · Free tier available
Common questions
How does Mapnostics find dead code?
It builds a symbol graph of your TypeScript and JavaScript and checks reachability: an export, function or branch that nothing references is flagged, each with a confidence score.
Is it safe to delete the dead code Mapnostics flags?
Check the confidence score on each finding first. High-confidence findings have no dynamic references or external callers a static scan can see; lower-confidence ones are worth a manual check before deleting.
What languages does dead code detection support?
TypeScript and JavaScript, including JSX and TSX, have full support. Other languages in the repository are indexed but not analysed for dead code.
Does it flag test files and fixtures?
No. Tests and fixture directories (fixtures/, __fixtures__/, testdata/, __snapshots__/) are left out of the file scan, because a sample input nothing calls is not dead code. A permanently skipped test suite, or a module kept alive only by its own test, is reported by a separate detector.