Build logic trees
right in your browser.
AI checks your structure for gaps and overlaps. No Excel, no slides — not anymore.
Example — How tree
What is a logic tree
What is a logic tree?
A logic tree is a thinking framework that breaks one topic into branches to organize the issues, causes, and solutions. Depending on the goal, it goes by many names — issue tree, why tree, how tree, KPI tree.
It's a method long used in strategy consulting, from McKinsey onward. Today it's applied far more widely: planning, problem solving, outlining proposals, and structuring instructions for AI.
logictree is a tool for building these logic trees online, fast. If you used to draw them by hand, in Excel, or in slides, you can now start with nothing but a browser tab.
Features
Every thinking tool, in one place.
Build the tree, refine it with AI, export it as-is. Everything you need is here.
AI that thinks in structure with you
Automatic MECE check
One button, and AI flags any gaps or overlaps in the tree you've built.
Brainstorming
Select a node, hit “Suggest children,” and related ideas branch out automatically.
Text to tree, automatically
Paste in a rough paragraph and it becomes a structured tree.
Use cases
Where it fits
A logic tree helps with every job that involves thinking.
Outlining proposals and pitches
Surface every issue before you start writing, and you'll never need a major rewrite later.
Problem solving (why & how trees)
Build a why tree to break down “why did revenue drop,” and a how tree to assemble “how do we fix it” — together with AI.
Issue analysis for consultants
Build issue trees for client work. Go from framing the question to structuring the moves, end to end.
Organizing prompts for AI
Lay out what you want to ask ChatGPT or Claude as a tree first, and the quality of the answer changes dramatically.
Structuring student reports and papers
Build the structure of your claim and evidence before writing, and you avoid tangled logic.
By role
How it works for your job
The way you use a logic tree shifts with your role.
For planning & marketing roles
For outlining proposals. You start writing with every issue already covered — no more “so, what's the conclusion?” from a boss or client.
For consultants & strategists
Issue trees, root-cause analysis, structuring the moves. A scaffold for client thinking that's faster than paper or a whiteboard, and easier to share.
For AI power users
Are your prompts to ChatGPT and Claude getting sloppy? Organize what you want to ask as a tree first, and the accuracy of AI's answers noticeably improves.
For students & researchers
Reports, papers, presentations. Build the structure before you write, and you save yourself a major rework of the logic later.
Pricing
Start free.
The core features are yours to try on the free plan.
Free
The features you need to build logic trees — free.
- Build logic trees
- AI features up to 5× per day
- Export to Markdown / image / PDF
- Real-time co-editing
- Cloud sync
Premium
Coming soonMore AI usage and further advanced features are on the way.
- A larger AI usage allowance
- Advanced features coming later
FAQ
Frequently asked questions
Where is my data stored, and how secure is it?+
The trees you create are stored in the cloud and synced in real time. Your data is accessible only to you and the people you invite.
Can I import from existing Excel or PowerPoint files?+
Direct file import isn't supported yet. But you can paste in text and AI converts it into a tree automatically — so the content of your existing material isn't lost.
Does it work offline?+
logictree is a web app that runs in the browser. Editing trees, AI features, and co-editing all require an internet connection.
Do you support corporate contracts or invoice billing?+
Business plans and invoice billing are in preparation. Get in touch if you need them.
Which model do the AI features use?+
We use leading large language models (LLMs) that are strong at structural reasoning. Unlike a general chat tool, they make suggestions with the structure of your tree in mind.
Can I cancel anytime?+
You can start for free and delete your account anytime. Once paid plans launch, you'll be able to cancel anytime with no commitment.
Build your first logic tree — free.
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