SummYT is a YouTube video productivity tool designed to help people understand longer videos in less time. Users can paste a video link to generate a summary, or use the browser extension while browsing YouTube. The service supports a range of content, including lectures, tutorials, interviews, and explainers. For each video, SummYT brings together a summary, transcript, and chat feature in one workspace, helping users review key ideas, follow details, and explore the content without switching between separate tools.

SummYT also includes a personal library where users can save videos and return to their summaries, transcripts, and chats later. This makes it useful for building a collection of material to revisit for study, research, or general reference. Its Chrome and Edge extensions let users summarize videos and access transcripts or chat without leaving YouTube. In addition to individual video summaries, SummYT offers a public feed of published summary pages and tools such as a playlist length calculator. The service is available in multiple languages, including English, Spanish, Portuguese, and Turkish.