PDFs & documents
PDF to notes
Turn native or scanned PDFs up to 200 pages and 50 MB per file into notes with key concepts and supporting details.
PDF-to-notes guideAI Notes Generator
Create a free account or sign in to turn your content into clear notes you can edit, save, and study.
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1M+ users worldwide
From information to understanding
What is an AI notes generator?
An AI notes generator turns documents, recordings, videos, web pages, or text into organized notes. HyNote creates a summary, key ideas, and supporting details you can edit and save. Use your notes to study, review research, or follow up after a meeting.
What your notes include
- 01
Summary
The main points, at a glance.
- 02
Key ideas
Important concepts grouped by topic.
- 03
Supporting details
Facts and context that explain the key ideas.
Start with what you have
Turn what you have into notes
Start with a class recording, a research paper, a video file, a video link, a photo, or pasted text. Choose a source below.
- MP3, WAV, M4A, FLAC, WebM, MP4
Audio to notes
Find the takeaways in interviews, podcasts, and voice memos. Upload a supported recording up to 200 MB and 120 minutes per file.
Audio-to-notes guide - MP3, M4A, WAV, FLAC, WebM, MP4
Podcast to notes
Upload an episode file and get a timestamped summary, key quotes, and a show-notes draft. One file, up to 200 MB and 120 minutes.
Podcast-to-notes guide - YouTube links
YouTube to notes
Turn an accessible public or unlisted YouTube video with a retrievable transcript into organized notes you can review later.
YouTube-to-notes guide - MP4
Video to notes
Upload an MP4 with clear speech and get a transcript, a summary, and notes. Each file can be up to 200 MB and 120 minutes.
Video-to-notes guide - JPG, PNG, WebP
Image to notes
Turn photos, screenshots, and whiteboard images into notes you can edit and review. Up to 120 MB per image, and up to 10 images in one upload.
Image-to-notes guide - Classes & seminars
Lecture to notes
Record a class or seminar for up to 3 hours per session and turn it into study notes. No bot needs to join.
Lecture-to-notes guide - Articles & web links
Web page to notes
Turn the main points from articles and supported web pages into notes you can save and revisit.
URL-to-notes guide - Pasted text
Text to notes
Paste a transcript, an article excerpt, or rough notes. HyNote organizes the text into clear headings and key points.
A little structure changes everything
See what your AI notes can look like
Choose a lecture, PDF, audio, video, article, or text example. See how its main points become organized notes.
Sample output
Before · Your source
Lecture notes
Cellular respiration converts energy from glucose into ATP. In human cells, glycolysis takes place in the cytoplasm and produces pyruvate. The Krebs cycle and oxidative phosphorylation take place in the mitochondria. Electron carriers from the Krebs cycle supply the electron transport chain, which creates a proton gradient. ATP synthase uses this gradient to produce most of the ATP.
After · Your notes
Cellular Respiration
Summary
Cellular respiration turns energy from glucose into ATP through glycolysis, the Krebs cycle, and oxidative phosphorylation.
Key ideas
- Glycolysis occurs in the cytoplasm and produces pyruvate.
- In human cells, the Krebs cycle and oxidative phosphorylation take place in the mitochondria.
- Most ATP is produced through oxidative phosphorylation.
Supporting details
- The electron transport chain creates the proton gradient used by ATP synthase.
- ATP synthase uses this gradient to make ATP.
Your next note is three steps away
How to generate notes with AI
Add your material, generate a draft, and edit it to fit the way you study or work.
- 01
Add your source
Create a free account or sign in, then upload a supported PDF or audio file, record a lecture, paste a supported YouTube or web page link, or add text.
- 02
Generate your notes
HyNote organizes your content into a summary, key ideas, and supporting details under clear headings.
- 03
Make them yours
Check names, facts, and numbers against the original. Edit and save your notes so they’re easy to find when you need them.
Keep the momentum going
Good notes are just the beginning.
Review lecture concepts, connect ideas from your reading, or test what you remember. Study features and usage limits vary by plan.
Study notes
Organize lecture concepts and key terms for your next study session.
ExploreReading notes
Keep the arguments and takeaways from long readings easy to revisit.
ExploreFlashcards
Turn the important ideas into questions for active recall.
ExplorePractice quizzes
Find out what stuck and what deserves another look.
Explore
Use your notes in ChatGPT
Bring saved HyNote notes into ChatGPT to answer questions, develop ideas, and move your projects forward.
Choose the right starting point
HyNote vs. generic note-taking apps
Generic note-taking apps let you write and organize notes yourself. HyNote adds AI-generated drafts from files, recordings, links, and text.
| What you need | HyNote | Generic Note-Taking Apps |
|---|---|---|
| Notes from source material | Generate a first draft from PDFs, audio, links, or text. | You usually type, paste, and organize the material yourself. |
| A clear structure | A summary, key ideas, and supporting details. | A blank page or a template you fill in yourself. |
| Lecture & meeting audio | Record or upload audio for bot-free notes. | Recording and transcription depend on the app or add-ons. |
| Videos & web pages | Generate notes from supported YouTube videos and web pages. | Save links or copy the parts you want to keep. |
| Editing & personal context | Review the draft and add your own explanations. | Write and edit your notes directly. |
| Study & review | Make flashcards and practice quizzes; plan limits apply. | Write your own review questions or use a separate study tool. |
| Sharing & exports | Export to PDF, TXT, Notion, or Google Docs, depending on your plan. | Export formats and integrations vary by app. |
| Working offline | AI generation needs an internet connection. | Many apps let you write local notes offline. |
AI notes generator FAQs
Frequently asked questions
Get answers about supported files, free access, exports, and privacy.
What does an AI notes generator do?
An AI notes generator organizes source material into a readable set of notes. HyNote turns audio, documents, videos, web pages, or pasted text into a summary, key ideas, and supporting details. You can review the result, edit it, and add your own context.
Can I use the AI notes generator for free?
Yes. Create a free account or sign in to generate and save notes within the limits of HyNote’s free plan. No credit card is required for the free plan. Study features and export options vary by plan. Check your account or the pricing page for details.
Explore:Compare plans
Can I generate notes from a PDF, audio, or YouTube video?
Yes. You can generate notes from PDFs and other documents, audio recordings, MP4 videos, supported YouTube videos and web pages, or pasted text. Choose a source above to get started. Each source guide explains which formats are supported and how to get better results.
Explore:Audio to notesLecture to notesYouTube to notesPDF to notesURL to notesPodcast to notesVideo to notes
How are AI notes different from a summary?
A summary is a short overview of the main points. AI notes also organize key concepts and supporting details under headings, making individual topics easier to review. HyNote includes a summary as part of your notes.
Can I edit and export my generated notes?
Yes. You can edit the text and structure in your HyNote notebook and add your own explanations. Available export options include PDF, TXT, Notion, and Google Docs, depending on your plan.
Can I turn lecture notes into flashcards or quizzes?
Yes. After creating notes, you can use HyNote’s study features to make flashcards or practice quizzes from the material. These help you review concepts through active recall. Feature availability and usage limits depend on your plan.
Explore:FlashcardsPractice quizzes
Does a bot need to join my class or meeting?
No. HyNote is bot-free. Record audio on your device or upload an existing recording, then generate notes from the audio. No bot joins your class or meeting.
Which languages does HyNote support?
HyNote supports audio transcription in 50+ languages and text processing, including OCR, in 99+ languages. Results vary by source type and quality. For the best audio results, use clear speech with as little background noise as possible.
What file limits apply, and how accurate are the notes?
Audio uploads support MP3, WAV, M4A, FLAC, WebM, and MP4, up to 200 MB and 120 minutes per file. Recording sessions can last up to 3 hours on all plans. Monthly transcription allowances and other source limits vary by plan. Accuracy depends on the quality of your content. Check names, numbers, and important facts against the original before using or sharing your notes.
Explore:PDF to notesYouTube to notes
How is my content processed, and can I delete my notes?
HyNote sends the content you submit for processing over an encrypted connection. Third-party AI providers may process that content as described in the Privacy Policy. You can delete notes from your notebook; see the policy for details on data retention and processing.
Supported sources, limits & privacy
A few useful details before you add your material.
Supported sources, limits & privacy
A few useful details before you add your material.
- Accepted sources
- Audio files (MP3, WAV, M4A, FLAC, WebM, MP4), PDF, Word, TXT, and Markdown files, images, YouTube links, web page links, and pasted text.
- Audio limits
- Recording sessions can be up to 3 hours. Uploaded audio files can be up to 200 MB and 120 minutes on all plans. Monthly transcription allowances vary by plan.
- Free plan
- Sign in to create and save notes within the free plan’s usage limits. Study features and export options vary by plan.
- Processing
- HyNote sends the content you submit for processing over an encrypted connection.
- AI providers
- HyNote may use third-party AI service providers to process content, as described in the Privacy Policy.
- Deletion
- You can delete notes from your notebook at any time. See the Privacy Policy for details on data retention and how your content is processed.
Read the HyNote Privacy Policy.
Get started with HyNote
Turn your material into notes you can use.
Create a free account or sign in, then upload a supported file, paste a link, or add text. Get organized notes saved in your HyNote notebook.
Free account required to generate and save notes. No credit card required for the free plan.