Maplas — AI mind maps that work like study notes

Maplas turns any topic or your own documents into an AI-generated knowledge map on an infinite canvas. Type a topic — or upload lecture notes, PDFs, and web links — and Maplas builds a structured map you can expand, rewrite, and question with AI. Unlike classic mind map generators, the result is not a fixed diagram of keywords: nodes carry real explanations, nodes built from your materials cite the exact passage they came from (one click opens the document at the highlighted spot), and the canvas stays yours — write notes, draw, and rearrange freely alongside the AI-built map. When it is time to revise, the same map generates quizzes with spaced repetition. Free to try in the browser, no account needed.

What you can do with Maplas

• Generate a knowledge map about any topic in seconds, streamed node by node.
• Ground maps in your own materials: uploaded PDFs, documents, and web sources become the knowledge behind the map.
• Verify anything: nodes generated from your sources keep a citation, and one click opens the document at the exact highlighted passage the node came from.
• Read and build side by side: open your PDF in the built-in viewer next to the canvas, select a passage to turn it into a node (verbatim or AI-condensed), snip a figure straight onto the canvas, and jump both ways between a node and its highlighted passage — the same material in two linked representations, linear and spatial.
• Use three AI actions on any node — Expand to grow a branch, Rewrite to reword it, and Ask AI to question it in context — plus an assistant chat grounded in the map and its sources, with numbered citations.
• Let AI compare the map with your uploaded documents and suggest the concepts it does not cover yet — each suggestion cites the page it comes from, and you choose which get added.
• Take notes the visual way: write your own text and draw freely on the whiteboard canvas (built on Excalidraw), mixed with the AI-generated content.
• Study your maps with generated quizzes and spaced repetition — questions link back to both the map node and the source passage — see how well you know each node, hide node texts to test yourself, or export flashcards as .tsv for Anki and Quizlet.
• Share read-only map links and sync maps across devices with a free account.

A concrete example

Upload a biology lecture PDF and ask for a map of photosynthesis. One of the generated nodes looks like this:

• Node title: Light-dependent reactions
• Node text: Take place in the thylakoid membranes: chlorophyll absorbs light, water is split (releasing oxygen), and the captured energy is stored as ATP and NADPH for the Calvin cycle.
• Source: biology-lecture-04.pdf, page 12 — the node's Source button opens the PDF right at the highlighted passage it was built from.
• A quiz question generated from it: “Where do the light-dependent reactions take place, and which two energy carriers do they produce?” — your answer feeds the spaced-repetition schedule for that node.

Who is it for

Students preparing for exams and teachers building study materials first — and more broadly anyone working through heavy reading (research papers, documentation, reports) who wants notes with a shape: the same material as a spatial map that stays linked to its sources, instead of linear notes.

Pricing

Try Maplas without an account: 3 map generations a day, kept in your browser. A free account adds 10 map generations and 20 AI actions a day, up to 30 synced maps, and 20 MB of document storage. Pro (€6.99, $7.99, or 149 Kč a month, depending on where you pay from) raises that to 100 generations and 1,000 AI actions a day with unlimited maps and 500 MB of storage. See maplas.app/pricing for details.

Frequently asked questions

How is Maplas different from a mind map generator?

A typical generator turns a PDF into a static diagram of keywords and you are done. Maplas is built for what comes after: nodes hold actual explanations, every node generated from your materials cites the passage it came from, you keep editing and adding your own notes and drawings, and you revise from the same map with quizzes and spaced repetition. Classic keyword-style mind maps are possible too — they are just the starting point, not the ceiling.

Does the map show where its information came from?

Yes. When a map is generated from your documents or web links, nodes keep a citation to the exact passage they came from — click Source on a node and the built-in viewer opens the PDF or page at the highlighted spot. Gap analysis and generated quiz questions carry the same page-level citations, so you can always check a claim against the original material.

Is Maplas free?

Yes — you can generate maps without even creating an account. The free tier covers typical study use; the Pro subscription lifts the daily limits.

Can Maplas make a mind map from a PDF?

Yes. Upload a PDF (or paste web links) and Maplas builds the map from your material instead of general knowledge, so it matches your course or source.

Can I use Maplas as a general visual notebook, outside studying?

Yes. The canvas is a full free-form whiteboard: write your own text, draw, add images and AI-generated diagrams, and use AI only when you want it. Maps can link to other maps, so related notebooks connect into a small knowledge base, and any map exports to Markdown. People use it for reading-heavy work — research, documentation, planning — not just exam prep.

Do I need to install anything?

No. Maplas runs entirely in the web browser on desktop and mobile.

What languages does it support?

The interface is currently in English; maps can be generated about topics in other languages.

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