AskTube is an open-source Python tool and AI agent designed to make YouTube video content easily searchable and digestible. Users supply a YouTube video URL and AskTube automatically retrieves the transcript, feeding it into a large language model for processing. It supports interactive Q&A sessions where users can pose custom inquiries about topics, facts, or specifics within the video. Additionally, AskTube can generate concise summaries, extract key highlights, and identify timestamped segments of interest. Its flexible API enables integration into research pipelines, educational platforms, or content workflows. By automating transcript retrieval and leveraging LLM capabilities, AskTube transforms lengthy video materials into valuable, bite-sized insights, saving time and boosting productivity.