One step checkout extension by Magegiant

https://lh6.googleusercontent.com/Dr...9Lk-HzsPogsWuA

Reduce checkout steps, increase your revenue

Magegiant One step checkout dramatically simplifies the original Magento checkout process into one step. Making your customers checkout easier, reducing waiting time on Checkout page, you will increase your revenue, conversion rate and also cut down shopping cart abandonment rate.
You can configure checkout layout: 2 or 3 columns, so also change main color to fit your store design style. There are 9 pre-defined color styles, moreover you can choose custom color code.View some color styles.
Auto complete address

https://lh3.googleusercontent.com/ga...Zxs4Pd6rbefzeg
Magegiant OSC integrated with Google Address Suggest, the full suggested addresses will be shown. Customers can select those options, then address, city, State/Province, Zip code will be filled automatically without delay

Integrated with most popular payment methods

https://lh3.googleusercontent.com/0P...1AdY9wQzuDc67Q
Support almost payment methods: Check/ Money, Credit Card, Paypal, Paypal Pro, BillMeLetter by Paypal, SagePay Free, SagePay Pro, Moneybookers (Skrill), Authorize.net (3D Secure), Google Checkout, PayOne, WorldPay, BrainTree, Bank transfer, 2Checkout, Icepay and Wirecard Checkout Page and more...

Apply Coupon code

https://lh4.googleusercontent.com/eo...PdssSSW57uJJsw
With the original Magento checkout process, customers only can apply a coupon code on shopping cart page. Now Magegiant OSC allow them can apply or cancel coupon on the checkout page.
Gift message, Gift wrap, Delivery time, Survey ready!

https://lh4.googleusercontent.com/hq...4jz-Tz0zTVePuw
Customers can send a gift message to their friends right on checkout page, no email account login required, just fill customer email, receiver email and a message. Moreover, customers can select wrapping products on checkout page. After selecting gift wrap, order review selection will be updated automatically with Ajax technology.
Order comment is helpful for store owner. Customer can note additional things such as time of delivery.
Quick survey? Yes! It is very useful module to collect customer voices about your store. Just ask a quick and simple question and show them some answer options

Update shopping cart instantly

https://lh4.googleusercontent.com/9P...ddW9IlCG4l71Yw
Have you ever updated product Qty or remove products in Checkout page? For example, a customer want to buy 2 iPhones instead of 1. So they have to get back to Shopping cart page and update Qty to 2 then Process checkout. With Magegiant One step checkout, your customers can change Qty instantly in Order review selection in seconds. Reducing shopping cart abandonment will have a significant and immediate impact on your sales.

Terms and condition popover

https://lh4.googleusercontent.com/Or...xm5aGDcFmzI0BA
Replace the old Magento Terms and Conditions with new and comfortable pop-over Terms and Conditions box. Term and Conditions agreement is required field, customers can click on Terms and Conditions link, the pop-over box will be display, no new tab / page open with store owner agreements. It is easy to set up in One Step Checkout configuration.

Fully Responsive, Flat Design, Retina ready!

https://lh6.googleusercontent.com/Q0...C9eq_9d71t7yUg
Be was created in accordance to latest responsive standards, flat design and works perfectly on all devices. This design works also perfectly on devices with Retina displays. Logo, icons or images are totally sharp and looks amazing.

Integrated Social Login

https://lh4.googleusercontent.com/Q2...xU54pZWqkHBM-w
When customer click on “Already have an account? Click here to login” the Social Login popover will be display with default Magento login and 6 most popular Social networks. Customer can also create a new account right away in social selection.

FEATURES LIST

Key features for One step checkout

• All checkout steps display on a single page
• Ajax loading to update block of information if there is any change.
• Auto fill Billing/Shipping Address for selected customer
• Support multiple addresses shipping
• Fully supported checkout mode: register, guest, logged in
• Ajax pop up for login/forgot password
• Support Coupon codes
• Support Gift wrap
• Delivery time
• Google Maps Suggest for Address fields
• Update Qty on Order review instantly
• Add gift messages and comments to orders.
• Signup newsletter option.
• Add quick survey on One step checkout page
• Support "Terms and conditions" check box

Design on Checkout page

• Change checkout title and description
• Select one of 8 button styles to fit with store
• Support 2 or 3 columns layout
• Multiple designs for multiple stores

Shipping and Payment methods integrated

• Support almost popular payment methods: Check/ Money, Credit Card, Paypal, Paypal Pro, BillMeLetter by Paypal, SagePay Free, SagePay Pro, Moneybookers (Skrill), Authorize.net (3D Secure), Google Checkout, PayOne, WorldPay, BrainTree, Bank transfer, 2Checkout, Icepay and Wirecard Checkout Page and more...
• Default shipping method & payment method settings.
• Configurable displaying fields: city, region, telephone, company, fax in Billing Address section.
• Support change positions of fields in Section Billing & Shipping Address.

Others

• Life-time support
• Life-time upgrade
• 100% Open source code
• Responsive design
• Supports multiple stores
• Supports multiple languages
• Supports mobile devices
• Easy to install and configure
• User-friendly interface

Demo

- Front-end
- Back-end

http://magegiant.com/magento-one-step-checkout/