AskSia turns any YouTube, Khan Academy, or Instagram video into timestamped notes, flashcards, and a searchable AI conversation — in under 10 seconds. Every claim cites the exact moment in the video. Free to start, no sign-up required.
AskSia YouTube Summarizer is a free AI-powered tool that turns any YouTube, Khan Academy, or Instagram video into a structured summary with clickable timestamps, speaker identification, and an interactive AI study companion. Paste a URL, get notes in under 10 seconds. Every bullet includes a [N] citation marker — hover it to see the exact spoken quote from that moment, so you can verify every claim without re-watching. Supports 40+ languages, plus Vimeo, Bilibili, Loom, and direct MP4 uploads. No browser extension, no credit card.
Generic AI summarizers paraphrase and hope you believe them. AskSia grounds every bullet in the exact video moment — so you can verify the source in one hover, not re-watch the whole video.
Every bullet in the summary shows a [1] [2] [3] marker. Hover any marker to reveal the exact spoken quote, speaker name, and precise timestamp. Click to jump into the video. Verification in one gesture.
No browser extension. No account. No download. Paste a YouTube, Khan Academy, or Instagram URL and Sia returns a full summary — with chapter detection, speaker labels, and flashcards — in under 10 seconds.
Interview? Panel? Lecture with Q&A? Sia auto-identifies up to 10 different speakers across the video, color-codes each one, and attributes every quote correctly — so you know who actually said what.
Watch a Korean math tutorial, get English notes. Summarize a Spanish keynote in Chinese. Sia handles the source and output language independently — ideal for international students and bilingual classrooms.
After the summary, Sia keeps the full transcript in context. Ask "What did the guest say about hiring?" or "Compare the two counter-arguments." Every answer is itself a timestamped, citable response.
One click turns any video into a study pack — definition-based flashcards, concept-check quizzes, and a structured study guide. Every card is sourced from a specific timestamp for review.
No browser extension. No sign-up to try. Paste, wait 10 seconds, study.
YouTube, Khan Academy, or Instagram — paste any public link. Or upload an MP4 file. Sia handles the rest.
Auto-transcription, speaker identification, topic chapter detection, and timestamp indexing — running in parallel, all server-side.
Every bullet shows a [N] citation. Hover to see the exact spoken quote. Click to jump into the video. No claim is ever unverifiable.
Every day, over 500 million students turn to YouTube, Khan Academy, and Instagram for learning. AskSia turns that time into structured, citeable notes.
Lectures, interviews, TED talks, documentaries, tutorials — paste any public YouTube URL and get a full summary with clickable timestamps in under 10 seconds.
Optimized for Sal Khan's math, science, economics, humanities, and SAT/AP/MCAT prep videos. Worked examples become study-ready flashcards automatically.
Educational creators on Instagram — language tutors, finance influencers, study-tip accounts, recipe creators — all captured and turned into structured notes.
Missed a lecture? Recording too long to rewatch? Paste the upload URL — Sia returns a full outline, every quote timestamped to the source.
Stack all of Sal Khan's Calculus videos into one structured study pack — flashcards, worked examples, and cross-linked concept maps.
Extract the core argument from any long-form conversation. Cite exact quotes with timestamps in your own writing or research paper.
Follow a language tutor, personal finance creator, or recipe account on Instagram? Batch-summarize their Reels into a single notebook.
Watch a Korean chemistry channel, get English notes. Study a Japanese finance lecture, output Chinese summary. Cross-lingual by default.
Summarize Coursera, edX, or Udemy video batches. Build structured notes that mirror your syllabus, with flashcards per module.
Other tools paraphrase and hope you believe them. AskSia grounds every claim in the exact video moment — and adds a full study companion on top.
| Feature | AskSia | NoteGPT | ChatGPT YT Summary | Eightify |
|---|---|---|---|---|
| Hover-to-source timestamped quotes | ✓ Built in | ✗ | ✗ | ✗ |
| Speaker identification & diarization | ✓ Up to 10 | ✗ | ✗ | ✗ |
| Khan Academy & Instagram support | ✓ Native | ~ partial | ✗ | ✗ |
| Long videos (3hr+) | ✓ Unlimited (Super) | ~ with limits | ✗ | ~ with limits |
| 40+ language transcription & output | ✓ | ✓ | ~ EN focus | ✓ |
| Runs without browser extension | ✓ Fully web | ~ extension | ✗ Chrome only | ✗ Extension |
| Auto-generated flashcards & quizzes | ✓ One click | ~ manual | ✗ | ✗ |
| Grounded follow-up AI chat | ✓ Full context | ~ limited | ✓ | ✗ |
| Free to start, no credit card | ✓ 5/day free | ~ limited | ✗ Plus required | ~ trial |
Join 2M+ students summarizing YouTube, Khan Academy, and Instagram videos with AskSia — free to start, no credit card required.