KnowledgeBase Builder

InfoRapid

About this app

The infinite mind map: millions of connected ideas

Conventional mind mapping apps hit their limits at 50 to 100 nodes and force you into a rigid tree structure. The InfoRapid KnowledgeBase Builder is a true knowledge network for personal knowledge management and your digital “second brain”: any node can be linked to any other, every relationship carries its own label, and the database grows to millions of entries without becoming cluttered. Just like in Google Earth, you always navigate only the section you are interested in right now.

★ Spectacular 3D view
Experience your knowledge in space: the interactive 3D view arranges your network in an orrery and planetarium layout. Fly from node to node with animated camera moves, or let presentation mode carry you through a guided tour – perfect for talks and videos.

★ Whiteboard, mind map & kanban in one app
Start out free-form in whiteboard mode: ideas, notes and tasks float loosely on an infinite canvas. As your thoughts mature, arrange them as a classic mind map – or as a kanban and scrum board for projects and tasks.

★ Every kind of diagram, tidied up automatically
Connect nodes by drag and drop, then label and weight every relationship. One click sorts the whole network radially, symmetrically, hierarchically or as a table. That is how mind maps, concept maps, flowcharts, org charts, family trees and even mathematical formulas (LaTeX) come together.

★ Notes, rich text & attachments
Every node holds far more than a title: formatted notes, tables, checklists and cross-references to other items. Attach PDFs, Word and Excel files, text documents, images or web links directly – with automatic previews.

★ Full-text search that reaches into your documents
The lightning-fast search covers not only the titles of your nodes, but the entire text content of every attached document.

★ Wikipedia, Wikidata & Obsidian import
Search Wikipedia or Wikidata straight from the app and import entire articles along with their semantic relations as a finished mind map. From your own running text, the text analysis extracts keywords automatically for brainstorming. Complete Obsidian vaults can be imported too.

★ AI support for automatic diagrams
Let modern AI models expand your diagrams, summarize text or insert entire structures – thanks to full support for the Model Context Protocol (MCP).

★ Categories, tags & live filters
Group nodes by color and topic, and instantly hide the branches you do not need right now.

★ Open formats
Export and import your knowledge network or individual sub-branches as JSON, XML, CSV, text document, image or 3D model.

Also included:

• Flashcard trainer: the app automatically generates flashcards and cloze tests from your mind maps for studying at school, university and work (spaced repetition).


• Flowcharts from pseudocode: write simple logic text and the app draws the flowchart.


• History that lasts: up to 200 undo steps – even after restarting the app.


• Your data stays local: every knowledge base is stored as a fast SQLite file (.kdb) on your device instead of in someone else's cloud. No account, no forced cloud, no tracking. You only need the internet for the optional Wikipedia/Wikidata import and for AI support.


• On all your devices: share your .kdb file through the cloud storage of your choice with the editions for Windows, iOS, macOS and the browser.


• No subscription: a fair, one-time purchase for lifetime access to all premium features.

More information and sample databases: https://inforapid.org/

Ratings and reviews

I'm dyslexic and use this to help me take dynamic visual notes that reflect how I think better, create process/decision trees, and collect my thoughts when trying to understand or learn something and it works on my PC as well as my phone. I mean I liked it well enough to purchase it for both (will delete if it ever goes subscription-based service. It's good but not that good)

Best app I've ever installed. It's like DokuWiki or Zim meets Mindmup or Draw.io; as a one man video game dev, this is a priceless note taking and planning tool. If you're in school, if you're trying to organize anything, or keep a handy graphically organized database for any number of reasons, buy it. Just do it. The developer earned his coffee. On a side note, I wish there was a live collaboration mode; it would make the app better than some apps it doesn't even try to compete with. 🙏

I've used this app for years and loved it. I now have a Pixel 10 Pro Fold and Android 17. However, now, if I move one icon manually, it causes all the icons to bunch up into one group and I can't separate them unless I use the adjust view option. What happened? this is rendering the app useless for me. Hope you can fix this.

What’s new

• New: Comprehensive AI integration via Model Context Protocol (MCP) – Introduced a new local MCP server and an MCP bridge with secure file-based communication.
• UI Update: Text bubbles are now used for clearer illustrations during AI interactions in Screenplay and MCP modes.
• Improved: Additional updates feature Kanban board optimizations (drag & drop animations, immediate tag saving), new whiteboard tools.