Buffer - A Social Media Management & Scheduling Platform

Buffer is a great tool that manages all of your social media accounts in one place. You do not need to waste your time in making individual social media posts by logging into multiple accounts separately. 

You can create your social media marketing posts in your free time, choose the date and time you want to publish your posts on, and add them to buffer's queue. Buffer will automatically post them at the scheduled time.

Buffer is offering a forever free plan for individuals and businesses getting started with social media, which allows you to add up to 3 channels (social media profiles) and schedule up to 10 social media posts at one time.