About UnderstandAI

UnderstandAI helps you understand any content in seconds. Paste a YouTube video, blog article or PDF link and our AI reads it for you — then gives you a clear summary, a simple explanation, key takeaways, difficult words with meanings, and answers to the questions you'd probably ask.

It's completely free. No account, no signup, no paywall. The site is supported by ads, which keeps it free for everyone.

You can also translate every summary into 15 languages, including Hindi, Urdu, Tamil, Telugu, Kannada, Malayalam, Gujarati, Marathi, French, Spanish, German, Arabic, Japanese and Chinese — and ask the AI follow-up questions about the content.

Try it now — paste any URL and click Understand.