Dead Code Finder
Find unreachable statements, always-false conditions and functions that are never called. Free and private: runs in your browser.
Paste code to find lines after return, throw or break that can never run, if (false) blocks, and private functions with no callers in the snippet.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Check a function before opening a pull request.
- Explain a review comment with numbers instead of opinions.
- Find the riskiest code to refactor first.
Frequently asked questions
Is it safe to delete what it finds?
Unreachable lines can be deleted. Unused functions may be called from other files, reflection or frameworks, so search the codebase (or run a full scan) first.
Is the Dead Code Finder free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
How accurate is a browser-based code check?
It uses fast heuristics on the snippet you paste, so it is great for quick feedback. For whole repositories, cross-file analysis and history, run a full CodeInspector scan.
Related tools
Track complexity, duplication and code smells across your whole codebase with CodeInspector.