I've been working on a chrome extension that let's you run python code in ChatGPT. You can see the output, see plots with matplotlib, upload and download files, use a bunch of packages, all thanks to Pyodide[0]. Basically ChatGPT's own code interpreter but worse (it's also free, you get what you pay for). It was important to me that it works completely locally and does not save any data.
It is one of my first personal projects and seeing the number of users go up makes me happy and want to keep improving it. I had to make my github repo private because I had an issue with a copycat, but I can make it public if people actually care.