ahuseyn

This airweight plugin will help you to generate unique WooCommerce coupon codes as much as you want. It allows you set coupon details before generation.
Features:
<ul>
<li>Native WordPress page look, without any distraction and annoying notification</li>
<li>Create multiple coupons at once</li>
<li>Define same prefix for all coupon codes</li>
<li>Unique coupon codes with PHP uniqid function</li>
<li>Set coupon expiry date</li>
<li>Set coupon value</li>
<li>Set usage limit per coupon</li>
<li>Set usage limit per user</li>
<li>Set minimum spend amount</li>
<li>Set maximum spend amount</li>
<li>Create coupons for individual use only</li>
<li>Create free shipping coupons</li>
<li>Exclude sale items</li>
</ul>

Auto Coupons for WooCommerce

Generate unique coupon codes for Woocommerce automatically.

Jeroen Sormani

WooCommerce Coupon Generator is a coupon generator that allows you to setup and generator tens of thousands of coupons at the same time.
By going through 3 easy steps you can setup your desired coupons and start generating the coupons.
Generation process 
Step 0) Introduction, ‘how to’ 
Step 1) Select coupon settings 
Step 2) Select generation settings 
Step 3) Coupons are being generated
The coupons are generated in a very effective way so they will even work on low-cost hosting. During the generation process you will get updates about the progress.
Tested up to 1,000,000 (!!) coupons.
Please leave a rating if you found this plugin useful
If you have a feature request, let me know, they’re always welcome!

Coupon Generator for WooCommerce

As others have noted, it might be nice if this plugin exposed a couple of additional features for bulk modification - like custom code prefixes or suffixes, or descriptions, for example - but it does just what it says, exposes at least some of those features via filter for custom development, and is bottom-line great "for the price."

Works great fresh out of the box

Great plugin, does exactly what it states and does it in a very friendly user interface. If I could add something more to it then I guess it would be an option to delete all of the generated coupons in case of an error.
Thank you for the excellent product!

Does exactly what the name suggests

Generate WooCommerce coupons easily and fast.

Auto Coupons for WooCommerce vs Coupon Generator for WooCommerce