Log4u is a tool designed to assist users in preparing for behavioral interviews through AI-powered work log recording and mock interview practices. The platform allows users to record their work experiences using the STAR (Situation, Task, Action, Result) format, with assistance provided by the AI. Users can choose from various formats based on their needs. In addition to logging work experiences, the application generates practice mock interviews using job-specific examples from the logged entries to improve interview performance. Users' work logs are securely saved on the platform, and they can be edited, viewed, or deleted as desired. To maintain confidentiality, the tool discourages users from inputting any NPI or non-disclosed information. The platform's AI generates logs in the STAR format based on the user's job title and responsibilities. Once the logs are completed, they can be edited or saved as is. Moreover, Log4u uses its proprietary, secure AI, LLM model for operations. It also offers a free version of the platform with certain limitations, and ChatGPT calls are limited unless users subscribe to a premium package.