If you frequently need to extract your conversations from ChatGPT, I built a small script that extracts the entire conversation into a zip file of markdown files

One file per message. You can then point Claude Code to the directory and analyze the conversation.

Just open any conversation in ChatGPT website (doesn’t work in the app) and copy paste the following script into the console.

It will also download an high-level overview of the conversation in an HTML file. Makes it easy to tell what the conversation was about and how it evolved over time from a quick glance.