Hashtagger is a GPT designed to support users with social media content by suggesting trending hashtags based on the content and the platform it is set to be posted on. Designed by Fabio O Ferreira, Hashtagger is an application integrated with the ChatGPT platform, which facilitates dynamic and intelligent conversations with users. The key functionality of Hashtagger lies in its capability to generate relevant and current hashtags that can improve the visibility and reach of a user's social media posts. The users can ask for hashtag suggestions for various platforms such as Instagram, LinkedIn, Twitter, and Facebook, and for different context such as articles, events, or a thread about a specific topic. The tool derives its suggestions by analyzing the content of the users post and the trends on the platform where the post is set to go. In this way, it is an ideal tool for social media managers, influencers, content creators, and any users seeking to increase their post engagement and expand their reach on social media. Hashtagger, as a part of ChatGPT Plus, aims to provide an intuitive and intelligent tool for navigating the world of social media hashtags.