WooCommerce makes it easy to bring your store online and sell all kinds of physical and digital items. There are plenty of WooCommerce compatible themes available for you to choose from. Some of them could break if you use super long titles. Woo Title Limit is a handy plugin that lets you set a max length for product titles.
The Woo Title extension lets you set title length on shop, product category, homepage, and product pages. You can also use this plugin to limit product titles in widgets. This script can limit title length at the end of the word instead of breaking the title.