If you want to try concordle, go to the site, it loads the code, all in one page. Select the text in the text field, hit backspace - and you can enter your own text. Unfortunately - or furtunately for me, at that time it was still possible to find text in pure ASCII - that means just those 7 bit signs covering the English letters. So your text must be ASCII text, not the present UTF-8 text. SO if you want to put new text in concordle, do not copy from a text from a browser, rather simply from a simple text editor, like TextEdit.app on Mac or notepad on Windows (on Unix the pure ASCII is still widely avilable if your default language is English). So any pure text entered into the text field can be analyzed and played with.
What does it do: It shows occurrences of the same word with snippets of the text. That is the concordancer function. But my enhancement is that you can click on any of the occurrences, you get a new field where each word is clickable. So you can click yourself through your analyzed text and see it in quite a different perspective. How the words appear, how they are combined.
Some time later, I asked Google Alerts to tell me about people linking to concordle, found some tweets, some people liked it, I was pleased, and concordle was on its own.
Later I found that actually some people use concordle for serious teaching. Concordle lives its own life, and probably has about the same impact as if I had published it in some "Journal of ... Education".
So a piece of software found its way to users for uses I could not even imagined. The peers reviewed it without any organization. On the negative side, I was never told about it. But I am happy that concordle lives its own life. Some people copied it, so it can live further without my original site. Maybe you can use it to learn more about your own writing.