Decision Journal is a GPT designed to provide aid in decision making while simultaneously offering features to track and review various decisions. However, this tool does not make the decisions for users but instead facilitates the decision-making process. Based on the context provided by the users, such as 'Help me make a decision about a new job' or 'I need help deciding whether or not to invest in a stock', the GPT generates responses which guide users in considering relevant factors, weighing pros and cons, and pondering diverse perspectives before making decisions. As well as decision guidance, one of the primary functions of the Decision Journal GPT is to log decisions made by the user, creating a systematic record of decisions for future reference. This is particularly beneficial for tracking patterns and trends over time, learning from past decision outcomes, and aiding in accountability and personal improvement. As an add-on to ChatGPT, it requires ChatGPT Plus membership for access.