We have listed the most poplar and useful Oscommerce modules with a short description what they do. All these contributions run well on our shared servers and we are happy to host and support them.
Ultimate SEO URLs
Ultimate Seo Urls is an osCommerce contribution that converts osCommerce urls into search engine friendly urls. It converts the urls of the category, product, product reviews, articles, information and link pages.
Easy Populate module will allow you to import products in your OsCommerce store without using the web interface. It creates a CVS/XLS file that you can change and then easily re-upload through the web administration part of the catalog. All changes in quantities, prices, new products added and more will be automatically reflected on your store after re-upload of the CSV file.
Discount Coupon Codes
This modules allows you to create discounts for your customers. Discounts may have a start or end date, number of times to be used, an order minimum for which a discount may be used. You choose whether to display the order subtotal with or without the discount.
Simple Template System (STS)
The STS add-on allows you to create an HTML page and then put placeholders for the various elements wherever you want to position them. It’s an excellent module for customizing the look of your Oscommerce shop.
The CKEditor is considered a modern and very convenient WUSWYG editor.