Legacy code complexity check

1. Your code sample

Between 50 and 500 lines gives the best signal. The analysis runs in this browser tab.

2. What the code cannot tell us

Answer as best you can. "Not sure" is fine and widens the score range.

3. Your result

Suggested route

Suggested first move

This is an indicative score from a small sample and your own answers. It points at where to look first and is no substitute for a proper assessment.

How this page handles your data

Your code stays in your browser

The analysis is JavaScript running inside this page. The page carries a browser security policy that only permits connections to our collection address, so the code in the page has nowhere else to send anything. You can check this yourself by switching off your network connection after the page has loaded: the analysis and the score still work.

What we collect for our stats

• That a visit happened, and which steps were reached (pasted code, answered questions, saw the score, opened the help form), so we can see where people stop.
• The detected language from a fixed list, and the size of the sample in a band such as 200 to 499 lines.
• The scores: overall, the six dimension scores, the nine code measures as numbers from 0 to 100, and the suggested route.
• Your multiple-choice answers, as option numbers.
• A random visit ID that exists only in the page's memory and disappears when you close the tab.

What we never collect for our stats

• Your code, or any piece of it, including file names, function names, comments, strings and anything matched inside it.
• Free text, names, email addresses or any other identifying detail.
• Cookies or local storage. The page does not write anything to your device.
• IP addresses. Our collection endpoint is set up not to store them.

If your browser sends Do Not Track or Global Privacy Control, the page sends no stats at all.

The "Please help" button

This is the only point at which we ask who you are. Pressing it opens a form for your name and email. "Send my details" sends only what you type in the form. "Send my code snippet" also sends the code you pasted, up to 8,000 characters, so a person can look at it. The form shows exactly what will be sent before you press either button, and nothing is sent until you do.

Check what this page has sent