SmartQuote.js is a script on English Wikipedia that converts the straight dumb quotation marks and apostrophes into typographically correct curly ones, against what is currently outlined at WP:Smart quotes. You can install this script on Wikipedia with your own account. The script will be enabled wherever your account is logged in
This script makes use of the open source library smartquotes.js by KellyM on GitHub, licensed under MIT License. The conversion is applied to the main content of the article, except any code or preformatted elements. This will not apply to any changes made to the article content once it is loaded (e.g. timers, etc.).