Patryk

Additional options for WooCommerce coupons:
1) Ability to disable coupon support from the product level (without super-coupon); 
2) Clear cart URL (how to use: https://shop-url/?clear-cart); 
3) Apply coupon from URL (how to use: https://shop-url/?coupon=…); 
4) Set coupon expire date and time (You must have a time zone set in your WordPress settings); 
5) Set expire coupon on end of day; 
6) Super-coupon – works for products with coupon-disabled support;
Plugin ready to translation (languages​​/pryc-wp-coupons-booster-for-woocommerce.pot)

PRyC WP: Coupons Booster for WooCommerce

Additional options for WooCommerce coupons: 1) Ability to disable coupon support from the product level (without super-coupon); 2) Clear cart URL (how …

looknear

Simple but powerful coupon generator. Use with caution. 
Creating multiple coupons with unique codes – from single source coupon. 
Easy solution and better results, while paying nothing! 
Was created because other similar alternatives – cost something. 
Feel free to donate anything between nothing to something 🙂
<h3>Why we need it?</h3>
In case you want to create the same coupon multiple times and to give multiple codes to your clients. 
This plugin will help you do it!

Coupon Bulker

This plugin does everything it promises, efficiently, and the prefix addition and bulk deletion options are nice to have. The interface could stand some work, and maybe the author will, over time, add new features - like coupon organization (categories and tags), and duplication of custom/3rd party coupon meta data, but this is a great start in any event.

Works well, no issues

Coupon generator : Duplicating a single source coupon multiple times & generate multiple codes. Download all codes in CSV format too.

PRyC WP: Coupons Booster for WooCommerce vs Coupon Bulker