The Royal Society of Chemistry Twitter Poster Conference is an online event held entirely over Twitter to bring members of the scientific research community together to share their research, network and engage in scientific debate. Building upon the success of the previous two Analytical Science Twitter Poster Conferences, the 2017 poster conference encompassed all areas of the chemical sciences. The conference reached the scientific research community around the world, achieving 1,650 contributors, 6,473 tweets, an audience of 2,770,749 and 11,841,519 total impressions.