Code Complexity Analyzer - Cyclomatic & Cognitive Complexity

How the Code Complexity Analyzer Works

The analyzer parses your source code entirely in your browser, detects every function and method, and computes two industry-standard complexity metrics per function. Here is the step-by-step process:

1. Paste or Upload: Paste source code into the input panel or upload a file (.js, .ts, .py, .java, .go, .c, .cpp, .h, .hpp). The language is auto-detected from the file extension or code heuristics.
2. Click Analyze: The engine scans your code line by line, identifies function boundaries using language-specific patterns, and isolates each function body for independent analysis.
3. Cyclomatic Complexity: The engine counts every branching construct per function - if, else if, for, while, switch case, catch, &&, ||, and ternary operators. Each adds 1 to the base value of 1.
4. Cognitive Complexity: Structural constructs (if, for, while, switch, catch) increment the score and add a nesting depth penalty. Deeply nested code penalises more than flat code with the same number of branches.
5. Risk Classification: Each function receives a risk label - Low, Medium, High, or Critical - based on both scores. Functions at Medium or above receive specific refactor suggestions.
6. Export Results: Copy results as JSON or download a CSV report for use in code reviews, sprint retrospectives, or CI/CD quality gates.

The Privacy & Local Processing Advantage

Source code often contains proprietary business logic, unreleased algorithms, internal API routes, and secret environment configurations. Uploading it to a cloud-based code analysis service exposes that intellectual property to third-party servers. The C³ MindLoop Code Complexity Analyzer works entirely differently:

Zero Transmission: All parsing, metric computation, and report generation executes inside your browser's JavaScript engine. No source code, function names, or analysis results are ever sent to any server or external endpoint.

Offline Compatible: Because the analyzer relies entirely on in-memory JavaScript, it continues to produce identical results with no active internet connection. It is safe to use on air-gapped developer machines or in restricted network environments.