TwitterLogin. Benefit from higher login rates and enhance the sign-in/sign-up conversion with the TwitterLogin button. You can fully customize the button position and choose between 3 sexy button designs that fit any business. The module comes with a lot of settings and tweaks that you will find in the demo.

✯ Compatible with OpenCart 2.0x
✯ 3 pre-set designs of the Twitter button (Standard, Metro, Rounded-corners)
✯ E-mail confirmation for customers who want to link their existing store account with Twitter
✯ Perfect synchronization with your OpenCart User System
✯ Adjustable Twitter Button Position - a field that simplifies the button placement on any place you want in your web store
✯ Easy CSS customization of the button via the Custom CSS field
✯ Bootstrap integration
✯ Multi-store support
✯ Multi-lingual support
✯ Clean and crisp module, no file modifications
✯ Compatible with every theme

TwitterLogin for OpenCart comes with extensive documentation with images, installation instructions, features explanations and examples.