WordPress shopping cart plugins included in this review will help you to easily sell products on your blog using different payment getways, get donations and send invoices to clients. It features both free and commercial shopping cart plugins to help you use WordPress as full featured E-Commerce solution. Since online ecommerce is growing each year , every seller requires some kind of online shopping cart to manage the transactions. Don’t forget to check out Top 10 mobile WordPress plugins and Top 60 incredibly useful WordPress plugins to power up your blog.

The WP e-Commerce shopping cart plugin
The WP e-Commerce shopping cart plugin for WordPress is a free fully featured shopping cart application suitable for selling your products or services online. The WP e-Commerce shopping cart offers a wide range of settings for your products, including extra custom fields, product variations, promotions, coupon codes and downloadable products. Among its features PayPal and Google Checkout getways, and SSL protected transactions. If you’d like some advanced features you need to purchase an upgrade module, starting from $25.

YAK (Yet Another Kart)
YAK (Yet Another Kart) is an open source shopping cart plugin for WordPress. It associates products with weblog entries, so the post ID also becomes the product code. It supports both pages and posts as products, handles different types of product through categories, and provides customizable purchase options (cheque or deposit, basic credit card form, basic Google Checkout integration, standard PayPal integration, PayPal Payments Pro, and Authorize.net).YAK also supports downloadable products, multiple product types, order administration, promotions, SSL and Sales Reports.

FatFreeCart Plugin
FatFreeCart Plugin allows you to add “Add to Cart” and “View Cart” buttons on your blog posts so that you can sell your products straight through your blog post. FatFreeCart plugin features include flawless integration with Paypal and Google Checkout, product variations, Shipping handling, and Sales Tax.

WordPress Simple Paypal Shopping Cart
The WordPress Simple Paypal Shopping Cart is a very easy to use plugin that allows you to sell products or services online in one click from your WordPress blog. WordPress Simple Paypal Shopping Cart allows you to add an ‘Add to Cart’ button on any posts or pages. It also allows you to add/display the shopping cart on any post or page or sidebar easily. The shopping cart shows the user what they currently have in the cart and allows them to remove the items. It can be easily integrated with the NextGen Photo Gallery plugin too.

ShopperPress professional online shopping cart
ShopperPress is a fully featured shopping cart plugin for WordPress, suitable for selling any types of products, services, and digital downloads online. ShopperPress utilizes WordPress pages, or posts, to create products. It supports custom Advertising Spaces (Google Adsense and normal banners), multiple options (weight / sizes / brands etc), and various ways for listing products. Free version can downloaded from WordPress plugin website, paid version starts from $69

eShop shopping cart plugin
eShop is a free accessible shopping cart plugin for WordPress, packed with various features. Including: various methods available for listing products, products can have multiple options, downloadable products, basic statistics, sales data, shipping options, automatic emails on successful purchase, user configurable email templates, merchant gateways:Authorize.net, Paypal, Payson, eProcessingNetwork, Webtopay, iDEAL and Cash/Cheque.

WordPress Shopping Cart Plugin
The WordPress Shopping Cart plugin ($49.99) gives you the ability to quickly and seamlessly integrate an online shop with a fully functional shopping cart interface into any WordPress website. It features easy to use interface, digital downloads of products, multiple payment methods, including PayPal (Standard), 2CheckOut, MoneyBookers, First Data (Linkpoint & YourPay), Realex Payments (redirect), eMatters (HTTPS), credit card (POS), bank wire and manual/custom payments.

LockPress
Free WordPress plugin to charge your visitors for accessing blog posts and pages. With LockPress you can sell articles, eBooks, and software and even run a membership site. You will get the payments directly to your PayPal account and you can set the flat or recurring fee items.

ArtPal Shopping Cart Plugin
ArtPal is a free WordPress plugin to seamlessly integrate PayPal with WordPress blogs. ArtPal’s features easy PayPal integration, real-time sales updates. If you need commercial support, it’s also available. ArtPal is fast, easy to set up and use, and won’t bog down your server.

QuickShop Shopping Cart Plugin
QuickShop adds a Sidebar widget that shows the user what they currently have in the cart and allows them to remove the items. It also has a TinyMCE button to easily allow you to add products to your posts/pages. You can style widgets look by changing CSS.

MiniCart
MiniCart will implement a mini-shopping-cart in your blog. You can add items from the admin side and embed the cart into posts. This can also be used as a donation plugin. MiniCart supports Paypal, has option to embed it directly into a post and one item/cart restriction.

Shopp Plugin
The Shopp Plugin ($55) is a commercial Ecommerce Plugin for WordPress with a rich feature set. The key features include drag & drop for multiple product images, support for physical & digital products, order history, email notifications, fast product search, shipping rate calculations, discounts and promo codes.

Are PayPal
Are PayPal is a WordPress plugin to monetize your WordPress blog’s content using PayPal. With Are PayPal you can set post/page to contain hidden content, instead of the hidden text user is shown a message about the action he has to take to be able to see the content, content can be set as hidden for unregistered users and visible for registered.

Ecwid Shopping Cart
Ecwid is free full-fledged shopping cart that can be easily add to any blog. It’s not a hosted solution like all other plugins in this list but SaaS. Ecwid Shopping Cart takes minutes to add to your site, supports drag-and-drop and AJAX. It features customizable e-mail notifications, order history, tracking payment and shipping status, support for PayPal, Google Checkout, Authorize.NET and 2CheckOut. It also features seamless updates and requires little to no technical support.

The FireStorm Ecommerce Shopping Cart Plugin
The FireStorm Ecommerce Shopping Cart Plugin is a free WordPress plugin that allows you to turn your WordPress website into a fully functional online store. The plugin is ideal for any corporate, small business or home based store. The administration is easy to use and loaded with features. It operates stand-alone which means it does not require blog posts for each product. This allows you to keep your blog separate from the store.

WP Auctions
WP Auctions ($39.99) is a plugin for WordPress which allows you to host auctions on your blog.Plugin features include option to show your auctions in an elegant jQuery powered popup, or place auctions in a post or page, auctions for registered users only, adding a Shipping Price, Shipping To and Shipping From location, create, manage and edit as many auctions as you like, uploading of multiple images for each auction, selling items on “Buy It Now” basis.

PayPal Shortcodes plugin
This plugin allows inserting Paypal buttons in your posts or pages, just using a shortcodes. You’ll need to edit paypal-shortcodes.php to customize it. PayPal Shortcodes plugin currently supports Add to cart and View cart options.

PayPal Donations
This WordPress plugin adds a PayPal donation shortcode and sidebar Widget to WordPress. The options menu lets you setup you PayPal ID and a few other optional settings. You can choose which donation button you want to use or if you want to use your own button. You can also set an optional default purpose and reference which can be overridden on each inserted instance with the shortcode options or in the Widget settings. There is also options available for currency, localization of the button, custom payment page style and the return page.

WP-Invoice
WP-Invoice lets WordPress blog owners send itemized invoices to their clients. The plugin ties into WP’s user management database to keep track of your clients and their information. Once an invoice is created from the WP admin section, an email with a brief description and a unique link is sent to client. Clients follow the link to your blog’s special invoice page, view their invoice, and pay their bill using PayPal. Credit card payments may be accepted via Authorize.net, MerchantPlus’ NaviGate, or PayPal account.