✦ Free & Open Source

Turn any question into a visual knowledge grid

RationalGrid is a shared AI-powered grid. Ask a question, get an AI response, then branch into deeper follow-ups. Every answer becomes a connected node you can revisit and grow — together.

⤢ Click to expand
100%
Free to use
Grids per user
Multi-user
Real-time collaboration
Open
Export to PDF, JSON, Markdown
⚡ Quick Start

Three steps from question to knowledge map

No setup, no accounts required. Just ask a question and start building.

1

Ask a question

Type any topic or question. The AI generates a structured response that becomes the first node on your grid.

Example
“What are the main theories of consciousness?”
2

Branch deeper

Highlight any word or phrase in a response and ask a follow-up. Each new answer links to the exact concept it came from.

Related Ideas Pros & Cons Blend Expand
3

Share & revisit

Your grid persists. Share the link so others can explore the same map, add their own branches, or pick up where you left off.

Share
A direct link to the full map or any single node
Create Your First Grid →
💡 The Problem

Why a grid instead of a chat?

Traditional AI chats present knowledge as linear walls of text. RationalGrid structures information spatially so you can explore multiple directions at once.

Traditional AI Chat

Linear & ephemeral

  • Single-thread conversations disappear
  • Can’t explore multiple directions at once
  • Impossible to see connections between ideas
  • No collaboration — one person, one chat
  • No way to revisit or build on past work
RationalGrid Knowledge Grid

Branching & persistent

  • Visual map shows how claims and evidence connect
  • Branch into multiple directions simultaneously
  • Every node links back to its parent context
  • Share a link — anyone can add branches
  • Maps persist, grow, and compound over time
🎬 See It In Action

Explore how ideas come to life

Interactive Knowledge Grids

Navigate ideas visually, not linearly

Transform complex ideas into intuitive visual networks. Unlike linear conversations, knowledge maps let you explore multiple paths simultaneously and see relationships at a glance. Each node can be expanded to branch into new directions, creating a rich web of connected knowledge.

Try It Now →
Beyond Chat

Structure is visible, not buried

See how claims, evidence, and counterpoints connect instead of scrolling through a flat thread. RationalGrid’s graph-based approach structures information spatially, allowing for non-linear exploration while maintaining context.

Enhanced Readability

Deep dive any branch as a threaded conversation

Any node can be shown as a flowing conversation. Highlight important passages, add comments, and use focus mode with accessibility features to improve comprehension. Create using the graph tool, review using the reader view.

Try It Now →
Conversation reader view in RationalGrid
🖥️ The Workspace

Everything in one view

A reading panel, an interactive graph, and an action toolbar — all visible at once so you never lose context.

Reading Panel

Read the full AI response for the selected node. Select any text to explain, ask a follow-up, highlight, or comment directly.

Graph Canvas

An interactive node-and-edge map of your entire grid. Click to read, drag to rearrange, scroll to zoom. Always see the big picture.

Action Toolbar

One-click tools: Related Ideas, Pros & Cons, Blend nodes, Expand. Each generates new connected branches on your map.

✨ Key Capabilities

Built for deep thinking, not shallow prompts

Everything you need to explore ideas thoroughly and make your thinking visible.

Graph-native answers

Every AI response is a node in a connected structure, not a flat block of text lost in a scrollback.

Term-level deep dives

Highlight any phrase in a response to generate focused sub-branches linked to the exact concept.

Shared grids

Share a link. Multiple people explore the same map and add their own branches in real time.

Persistent & searchable

Maps remain available, searchable, and linkable over time. Learning compounds instead of disappearing.

Portable output

Export to PDF, JSON, or Markdown. Your knowledge is yours — use it in notes, presentations, or documentation.

AI-powered branching

Related Ideas, Pros & Cons, Blend, and Explore All — one-click tools to expand any concept in multiple directions.

💬 From Our Users

People are exploring ideas in a whole new way

An amazing free specialised AI tool to explore philosophical ideas around pretty much anything — from academic questions to films to… hamsters! All at one’s fingertips, in a matter of seconds, with in-built tools for a sophisticated, yet accessible dialectic. Bravo!

AK
Alexandra Konoplyanik
🎓 For Educators

Set up a classroom grid in minutes

Create a structured idea map for a lesson, then share one URL so students explore the same concept together.

How it works for teachers

  1. Seed the map with key questions, claims, or source materials for the lesson.
  2. Guide exploration — direct students to specific nodes and encourage branching.
  3. Share one link — everyone works on the same grid, building understanding together.
  4. Review & export — browse the final map, export to PDF, or revisit it in the next class.
Create a Class Grid →

Share this guide

Copy the guide page URL into your LMS or class chat so students can learn the tool at their own pace.

View the Guide →
🔍 About

Why we built RationalGrid

The Information Age Paradox

We live in an era of unprecedented information access, yet the quality of discourse often feels lacking. Echo chambers and motivated reasoning lead to people talking past each other rather than engaging meaningfully. We built RationalGrid because we believe meaningful exchanges happen when you can explore assumptions at a fundamental level and see how different starting points lead to different conclusions.

Active Learning, Not Passive Consumption

Language models provide unprecedented access to knowledge, but traditional chat interfaces limit their potential for deep learning. RationalGrid transforms AI interaction into an active, exploratory process where learners branch out in multiple directions, creating a personalized knowledge grid that evolves with their curiosity.

Our Principles

Speed matters

Cognitive flow is easily disrupted. Every interaction is optimized to minimize latency.

Simplicity enables depth

Complex ideas don’t need complex interfaces. Less UI, more thinking.

Persistence creates value

Knowledge grids accumulate value over time. Your work is never lost.

An open source project by Tom Berman. View source on GitHub →

Ready to build your first knowledge map?

Pick a starter question or ask your own. Your grid is one click away — free, no account required.