The WeBWorK Parentheses Checker is a Chrome extension developed by J Yuzawa. It is a free tool in the Browsers category, specifically under Add-ons & Tools. This extension is designed to help users check their WeBWorK answers for proper usage of parentheses.

For students who find themselves frustrated by entering long and complicated solutions with lots of parentheses into their WeBWorK homework assignments for math or physics classes, this extension is a handy tool. It shows users where they need to add parentheses or where they made an error in their grouping. With the Parentheses Checker, users can easily identify any parentheses-related errors without having to hit the "Preview Answers" button.

It is important to note that this extension does not solve homework sets for users. Instead, it solely assists in entering solutions accurately. The WeBWorK Parentheses Checker is compatible with any school's WeBWorK installation, making it a useful tool for students navigating complex mathematical or physics problems.