Everyone know social authentication providers besides the ones counted above including LinkedIn, Hotmail or Yahoo and integrating each can be a headache. Also, such codes may require to-be-updated from time-to-time to reflect any changes applied to them.
OneAll is a technology company offering a set of web-delivered tools and services for establishing and optimizing a site’s Integration Of 20+ Social Networks such as Facebook, Twitter, Yahoo! and LinkedIn with Single API.

Allow your users to sign in with one of their accounts at Facebook, Google, Twitter and LinkedIn. 20+ social network and identity providers supported.
With the help of a “Social Login plugin“, a widget that can be inserted to web pages with a copy-paste, users can be powered with an option to login with their social IDs.
A “Social Share plugin” empowers users to share their comments, purchases, reviews or other activities directly from the website with their friends on multiple social networks.
And, every action performed using OneAll (sign-in, sign-up, repeating visits, etc.) can be viewed in detail from its analytics interface.
Let your users share comments, purchases and other activities from your site with their friends on multiple social networks at once.
- Social sharing widget
- One-click sharing
- Action-based triggers
- Ready-made buttons
- Works in all common Browsers
- Customized URL Shortener
It is hard to find such a service for free, however, OneAll is currently in beta (in-search of testers) and free during that period. Also, there will be a free plan once it is out-of-beta.
Compatibility: All Major Browsers
Website: http://www.oneall.com/