It uses a pretty simple text selection algorithm I've developed through trial and error: https://github.com/ZachSaucier/Just-Read/blob/6dcb4f05b93287b0ec6474460

It uses a pretty simple text selection algorithm I've developed through trial and error: https://github.com/ZachSaucier/Just-Read/blob/6dcb4f05b93287b0ec64744604a875967246b1e0/content_script.js#L670 https://github.com/ZachSaucier/Just-Read/blob/6dcb4f05b93287... I don't know how it compares to Readability.js.