AI summaries that turn long YouTube videos into key ideas in seconds
AI summaries that turn long YouTube videos into key ideas in seconds

Turn long educational YouTube videos into concise AI summaries

This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, SinteseAI (chromewebstore.google.com) is an AI platform indexed under AI Video Summarizer generating 0 monthly visits with a month-over-month traffic delta of +0 (0.0%). Its primary geographic market is Global (— traffic share), and it operates on a Free pricing model. Top competing alternatives by monthly volume include Eightify (109.24K visits/mo), Noiz (148.84K visits/mo), Summarize.ing (59.77K visits/mo).
skips the fluff in study videos
10/10 saver
quick summary
ui feels a bit barebones
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Analyzes educational YouTube videos and condenses them into short, easy-to-scan summaries.
Pulls out the most important points and core concepts from a video's content.
Delivers instant summaries so you can skip hours of reviewing long lectures.
Presents condensed material that makes key concepts and facts easier to retain.
Runs as a browser extension that fits naturally into an online study routine.
SinteseAI is a lightweight Chrome extension built for learners who want to absorb educational YouTube content without watching every minute of it. Once installed, it analyzes a video's content and produces a concise summary that pulls out the most important ideas, so you can decide quickly whether a video is worth your full attention or simply capture its takeaways directly.
The extension is designed around three practical goals: saving study time with instant summaries, making it easier to memorize key concepts, and fitting smoothly into an existing online study workflow. It is offered by an independent developer (Vinicius Rodrigues de Aro) and distributed through the Chrome Web Store.
SinteseAI is aimed primarily at Portuguese-speaking students and self-learners who rely on YouTube for courses, lectures, and tutorials. It is a focused, single-purpose utility rather than a full study platform, and it is free to add to Chrome.
Condense long recorded lectures or educational videos into focused notes you can review quickly before an exam.
Quickly scan programming, language, or skill tutorials to find the portions that actually matter.
Extract the core arguments and concepts from conference talks or explainer videos for later reference.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | SinteseAI | 0 | — | — | Free | Current |
| 1 | Eightify | 109.24K | -23.2% | 44% direct | Freemium | vs Eightify |
| 2 | Noiz | 148.84K | -27.8% | 29% direct | Free Trial | vs Noiz |
| 3 | Summarize.ing | 59.77K | -8.2% | 40% direct | Freemium | vs Summarize.ing |
| 4 | TubeMemo | 1.93K | -39.9% | 40% direct | Freemium | vs TubeMemo |
| 5 | SummifyAI | 380 | -76.6% | 42% direct | Freemium | vs SummifyAI |
| 6 | Glarity | 188.82K | -49.6% | 7% direct | Freemium | vs Glarity |
AI summaries that turn long YouTube videos into key ideas in seconds
AI summaries that turn long YouTube videos into key ideas in seconds

Summarize any YouTube video into key ideas and timestamped notes in seconds.
Summarize any YouTube video into key ideas and timestamped notes in seconds.
Turn any YouTube video into a one-minute digest
Turn any YouTube video into a one-minute digest

Turn any YouTube video into AI summaries, notes and flashcards inside your browser
Turn any YouTube video into AI summaries, notes and flashcards inside your browser

Summarize YouTube videos in seconds with custom prompts and timestamps
Summarize YouTube videos in seconds with custom prompts and timestamps

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
AI that watches your video and writes study notes as you watch
AI that watches your video and writes study notes as you watch

Turn any video into a clean summary, transcript, or mind map — free, no sign-up
Turn any video into a clean summary, transcript, or mind map — free, no sign-up
Turn long YouTube videos into summaries, mind maps and key points
Turn long YouTube videos into summaries, mind maps and key points

Turn long articles, videos and PDFs into structured summaries you can actually search.
Turn long articles, videos and PDFs into structured summaries you can actually search.

Turn any long video into a transcript, a chaptered summary, and a chat you can question
Turn any long video into a transcript, a chaptered summary, and a chat you can question

AI YouTube summaries and key insights without leaving the video page
AI YouTube summaries and key insights without leaving the video page