Chat Scraper

This extension lets you extract the message history of a chat on a very popular messaging platform (see the image...). It auto-scrolls through the chat and reads the page's source code for the message text as well as the surrounding metadata (sender name, time, etc.) when the UI provides it. The extension allows you to export the data in either a JSON or a plaintext format. This extension may bring you joy if you wish to gather some statistics on your chat behavior. Source code: https://github.com/happymeex/chat-scraper

Screenshots from Chrome Web Store