Drop in a paper, a chapter or a web page. Get a concept map, slides and a lesson a natural voice talks you through, with every point linked to the page it came from.
Free plan, no card needed
Every point cited
Your files stay in your browser
Sleep.pdfp. 7
During slow-wave sleep, the hippocampus replays the day’s experiences and moves them into long-term memory.
SleepStagesMemory
Why we need sleepDeep sleep moves the day into long-term memory p. 7
“Deep sleep is when your brain files the day away…”
Every topic gets slides like this, with speaker notes, and they download as PowerPoint or PDF.
Which of these belongs to ?
Fill the gap
Every answer colours that topic on the map, so you see what you know.
Know itGetting thereReview
In your own projects, practice is spaced over days, so it sticks: flashcards, games and quizzes from your material.
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Read more: ·
An example written for this page. In your own maps, every point cites the page of your source.
Reading with this browser's voice. (a one-time download, then it works offline)
Today’s free limit for Gemini’s AI voices is used up (a free key allows only a few spoken requests a day), so the browser voice reads instead until tomorrow. Your AI answers aren’t affected.
Ava isn’t installed in this browser. On a Mac, add it in System Settings → Accessibility → Spoken Content → System voice → Manage Voices (English (US) → Ava), then reload.
Speed
Voice input uses your browser’s speech recognition; in Chrome the audio is processed by Google.
Your own material becomes a map like this, with slides, a guided lesson and quizzes, every point linked to its source.
ready-made demos to open now
subjects with reading lists
6kinds of material: papers, books, novels, protocols, reports…
11languages, for the app and for your maps
ReadsPDF (scanned too) · Word · PowerPoint · web pages · DOI, PubMed, arXiv · YouTubeWithGemini · Claude · ChatGPT · OpenRouter
How it works
From a document to knowledge you keep, in three steps
1
Add what you’re reading
Upload a file, paste a link or DOI, or send a page from your browser. Choose the chapters you need.
2
Get a map and slides
The main ideas in learning order, with slides for each topic. Every point cites the page it came from. Prefer to read or listen first? Open the source in the Reader and map just the sections you want.
3
Learn it, then prove it
A voice guides you through the map. Quick checks, games and flashcards make it stick.
What you get
Built for understanding, not skimming
Every point is cited
Each bullet on a slide links to the page and the sentence it came from. Click it and the source opens at that passage, highlighted. Quotes the source doesn’t contain are flagged.
Why we need sleep
Sleep clears waste from the brain p. 4
Memories are replayed and stored during deep sleep p. 7
Adults need 7 to 9 hours a night p. 12
Page 7 “During slow-wave sleep, the hippocampus replays the day’s experiences…”
A guide that talks you through it
Press Guide me and a natural voice explains the map topic by topic. Key facts pin themselves to the map as they’re said. Pause, go back, or ask a question at any point.
Dreams
Sleep
Stages
Memory
hippocampus
deep sleep
“Deep sleep is when the hippocampus replays the day…”
Practice that makes it stick
Quick checks during the lesson, quizzes, matching games and flashcards that come back just before you’d forget. Every answer shows the passage that proves it.
Which stage of sleep stores new memories?
Light sleep
Deep, slow-wave sleep
Waking up
p. 7From the source
The source, to read or to hear
The Reader shows the original, with its pictures, formulas and code; every citation opens it at the quoted words. Read at your pace or let a natural voice read it, skipping citations and footnotes. Highlight, comment, then map just the chapters you need.
Abstract1 Introduction2 Methods3 Results
1 Introduction
Sleep is when the brain sorts the day. During deep sleep, the hippocampus replays new memories(Smith et al., 2021). Most adults need 7 to 9 hours.
04:12
Private by design
Your documents and maps stay in your browser, or in your own Google Drive or OneDrive with Pro. Use your own AI key, or your Claude or ChatGPT subscription with Plus; your key never reaches our servers. Download your work any time.
Documents and mapsOn this device
Sync (Pro)Your own Drive
Your AI keyEncrypted here
Markdown, PDF, PowerPoint (Plus)Yours to take
Natural voices, on your device
Hear how it explains
The guide, the Reader and every answer can be read aloud. The voices run in your browser: free, private, and quick once they’re set up.
Try a voice below ↓
Try your own words
Setting up the voice, first time only…
The first time, the voice downloads once (); after that it starts in about a second. This voice reads the language you type.
Runs in your browser
Your text stays private
Quick to set up
The voices and their portraits are AI-generated. In Microsoft Edge, its multilingual voices are offered too.
Try it now, no account needed
Open a ready-made map
Pick your situation
Whatever you’re reading, there’s a way through it
An exam in two weeks
Turn on Exam focus: every topic gets a likely exam question with a model answer, and flashcards come back just before you’d forget.
Journal club on Friday
A paper becomes question, methods, findings and limitations, with a deck and speaker notes. Every bullet cites its page.
A long report to get through
Listen to it in the Reader on the way, then map only the chapters that matter and let the guide explain them.
Get a free AI in one minute
Aistounding writes your maps with OpenRouter’s free models. No card, and no key to copy.
Press Connect. OpenRouter opens.
Sign in (Google works) and press Authorize.
You’re back here, ready to make maps.
Free models allow about 50 requests a day in all, and a new map takes 10–20. When one is busy or at its limit, Aistounding moves to the next free one. It never switches to a paid model.
Tip: $10 of credit on your OpenRouter account raises the free limit to 1,000 requests a day, and free models still cost nothing. A free Gemini key as well lets Aistounding carry on when OpenRouter’s limit is reached.
One map from all of them; citations show which source each point comes from.
selectedAll sources: pages and parts
A scanned or handwritten document: when you press Create, Read & listen or Save for later, your AI reads the selected pages from their images (one request for every 3 pages) and cuts out the pictures on them. Select only the pages you need.
Longer than the AI can read in parts: the end of your selection would be left out. Select less for complete coverage.
No table of contents was found, so choose pages below. The first pages that fit one request are pre-selected.
What kind of material is it?
Sections your material doesn’t cover are left out.
Your map’s main sections, in order: exactly these
Next you choose the chapters and the kind of material. Or open it in the Reader first to read or listen, and map just the sections you want.
Yes. The Free plan includes 3 projects with guided lessons, games and flashcards, using your own AI key. Plus adds 30 projects, bigger documents, PowerPoint and your Claude or ChatGPT subscription; Pro adds Google Drive and OneDrive sync. Compare plans.
Do I need an AI key?
For your own maps and slides, yes: a free Gemini key works, or connect your Claude or ChatGPT subscription. Reading or listening to a source in the Reader needs no AI, and the demos need nothing at all.
Where are my documents stored?
In your browser, on your device. Requests to the AI go straight from your browser to the provider you chose. Privacy.
Can I trust what it says?
Every point links to the sentence it came from, and quotes that aren’t in the source are flagged, so you can check anything in one click.
Read and kept on this device. Nothing was sent anywhere, and no AI has seen it yet. Make the map whenever you like, or open it in the Reader to read or listen first.
Sorting your projects by subject with your AI (titles and main topics only; one small request)…
No folder to suggest yet: a folder needs at least two different projects on one subject. This is how Tidy up sees the projects that aren’t in a folder:
Once you have two projects on a subject, Tidy up offers a folder for them. You can always make one yourself from the menu beside Tidy up.
Folders by subject, for projects that aren’t in a folder yet. Rename or untick any; nothing moves until you press the button.
Your key stays in this browser. What you were doing stays open behind this window.
No AI connected? Ask, Simpler and Define still work with Chrome’s built-in AI, free on your device (Chrome and Edge on a computer). It can’t make maps.
Sign in (free) to use AI without a key of your own.
Connected
Save the key above first; then this is checked with it.
Requests go from your browser straight to Microsoft; your Azure account is billed. Keys stay encrypted in this browser and never touch our servers.
How to get the keys (about 5 minutes)
Sign in at portal.azure.com (a free Azure account works; Microsoft asks for a card to verify you).
One key for both: create an Azure AI Foundry resource (“Azure AI services”, multi-service). Separate keys: a “Speech” resource for voices (Free F0: 0.5 million characters a month) and an “Azure OpenAI” resource for writing.
Open each → “Keys and Endpoint”: copy KEY 1, the Endpoint and the Location/Region.
For writing, deploy a chat model (Azure AI Foundry → Deployments, e.g. gpt-5-mini) and type its deployment name above.
In the Google Cloud console: open your project, enable the Vertex AI API, then Vertex AI → Vertex AI Studio → Get API key (or APIs & Services → Credentials → API key, restricted to the Vertex AI API). Requests are billed to that project; free-trial credits pay for them while they last.
Kept on this device
Measuring…
Spoken lines
The guide’s words
Saved quiz questions
Map, slides, notes and progressThe project itself (delete the project in Your library)
Your own pictures
Voice models are shared by every project: Settings → Data & sync → Storage on this device.
