Noiz

Noiz (noiz.io) is a YouTube AI video summarizer from Rational Expressions Inc. (the team behind Eightify), and is completely unrelated to the similarly named noiz.ai voice synthesis product. After installing the browser extension, one click on any YouTube page returns a timestamped key-point summary within seconds, built for students, researchers, and podcast listeners who treat YouTube as a primary information source.

Core capabilities

• One-click summarization: the extension embeds directly into YouTube pages, with no need to copy links or write prompts, and returns results in seconds
• Timestamped smart summaries: covering 41 languages, each key point is clickable and jumps to the corresponding moment in the video
• Multiple output formats: list / Q&A / brief / detailed, with adjustable focus and an emoji toggle
• Video-to-text and comment overview: generates transcripts better than YouTube's native captions and aggregates top comments
• Summary translation: translates summaries into 40+ languages
• Free web tool library: about 20+ tools that need no sign-up, including PDF / article / paper summarizers

Use cases Suited to study and research scenarios where you skim lectures, podcasts, interviews, and tutorials before deciding whether to watch them in full; students, researchers, content creators, and industry watchers benefit most. It is not a good deal for users who need it only occasionally, or who need to summarize non-YouTube content such as PDFs or meetings.

Distinctive advantages Compared with similar tools such as Glasp and NoteGPT, Noiz differentiates itself through the extremely low friction of "one-click embedding in the YouTube page", generation in 41 languages, and a low price of about $5/month. Its drawbacks are YouTube-only support, the inability to summarize videos without captions, and being sidelined by ChatGPT / Notion AI for general-purpose summarization.

Editor's take Within YouTube-specific summarization, Noiz is a highly complete, fast, and inexpensive choice (4.02★ on the Chrome store, 8.4/10 from Tooltivity), with a legitimate US entity and a 30-day pro-rata refund as pluses. The main gripes are that the desktop extension has no permanent free tier and only a 7-day trial, that the paywall appears rather quickly, that the cancellation experience draws criticism, and that the official site has no dedicated pricing page.