Hacker Tubes is a web-based directory of video recommendations sourced from Hacker News discussions. It curates talks, lectures, and explainers that have been shared and recommended by the Hacker News community. The service provides a way to explore this collection without requiring an account or personal data. The directory organizes videos through a daily mix that updates at midnight UTC. Users can browse by topic across categories such as programming, mathematics, science, and design. Search functionality allows filtering by title, creator, or subject, and can be combined with topic filters and length filters when runtime data is available. Each video card displays a summary, recommendation count, and context from the original Hacker News discussion. Where available, a link to the original comment is provided. The interface uses a grid of thumbnails with pagination instead of an endless feed. Users can hover over or focus on a thumbnail to see the title and creator. Videos can be added to a watch later list or marked as watched. These lists are stored locally in the browser and can be cleared with browser data. A hide watched switch allows users to see only unfamiliar content. The directory adapts to different screen sizes and contains no paid placements. Typical use cases include discovering educational content based on community recommendations, saving talks for later viewing, and tracking watched videos across sessions. The selection is based on recommendation data from Hacker News archives, providing a snapshot of community-endorsed videos.