00 / Meceify
Turn complex problems into clear structures.
Meceify is a visual thinking tool for breaking messy problems into issue trees — so you can see the whole shape of a problem, not just the piece in front of you.
Free to start. No sign-up required.
01 / The Tree
One structure. Every layer of the problem.
Start with a single question at the root. Split it into branches that don't overlap and don't leave anything out. Keep splitting until each branch is small enough to actually act on. That's an issue tree — and it's the same move behind every well-structured problem, from a strategy memo to a case interview answer.
Start building →Also useful as an issue tree builder, a decision tree maker, or to practice the MECE framework.
02 / Features
Built for structuring, not just drawing.
Break down messy problems
Drop in a hard question and split it into parts you can actually reason about, one branch at a time.
Structure ideas as you go
Drag a branch onto another to reparent it instantly — your structure keeps up with your thinking, not the other way around.
Explore every branch
Expand any node further without losing the shape of the whole tree. Collapse what's settled, focus on what isn't.
Identify the gaps
Flag thin branches or open questions right on the tree, so nothing important gets buried in a big structure.
03 / Use Cases
For anyone who has to make sense of a hard problem.
Consulting & case prep
Practice building MECE frameworks and issue trees for case interviews — the way MBB consultants actually think, not memorized templates.
Problem solving
Take a vague, overwhelming problem and turn it into a set of concrete, answerable questions.
Decision making
Lay out the real options and trade-offs side by side instead of turning them over in your head.
Brainstorming
Start from one idea and branch outward without losing track of where each thread came from.
Planning & strategy
Break a goal down into workstreams, then into the specific steps that get you there.
Preparing for a case interview? See how Meceify fits into case prep →
04 / Case Frameworks
Practice with real consulting frameworks.
Start from a ready-made MECE issue tree for the most common case interview types.
Profitability
The client's profit is down. Structure revenue, costs, and profitability drivers.
Market entry
Should the client enter a new market? Attractiveness, right to win, and economics.
Market sizing
Estimate a large, unknown market from customers, usage, and revenue per unit.
M&A
Should the client acquire this company? Rationale, target quality, and deal economics.
Pricing
What's the optimal price? Customer value, competition, and company economics.
Growth strategy
How should the client grow? Organic, inorganic, new markets, and enablers.
Cost reduction
Where can the client cut costs? COGS, opex, process efficiency, and trade-offs.
Free to start. No sign-up required.
05 / Why Meceify
AI can generate an answer. Only you can learn to think.
Ask an AI to structure a problem for you and it will — instantly, and often well. But that's someone else's structure, not a skill you keep. Meceify is built for the opposite: a blank canvas that makes you do the structuring, so the pattern-recognition sticks. Consultants call this MECE thinking. Whatever you call it, it's a skill you build by doing it yourself, not by reading someone else's answer.
Build your first treeRead more on why this matters more, not less, in the AI era →
06 / FAQ
FAQ
Do I need an account to use Meceify?
No. You can build a full tree without signing in — everything is saved in your browser as you go. Sign in with Google or email only when you want to save a project to your account and pick it up later from any device.
Is Meceify a decision tree maker?
You can build decision trees with it, but that's not the point. Meceify is a structured-thinking tool — issue trees for breaking down open-ended problems are the main use case, decision trees are one branch (so to speak) of what you can build.
Can I get my content out of Meceify?
Yes. Any tree can be exported as a clean, indented text outline in one click, from the toolbar.
Is this useful outside of consulting?
Yes — issue trees are a general problem-solving tool. Consulting and case interviews are where the practice is most explicit, but the same structuring skill applies to planning, product decisions, research, and brainstorming.
07 / Blog
Blog
Blog →Aug 16, 2026
Growth Strategy Framework for Case Interviews
How to structure a growth strategy case interview: organic vs. inorganic growth, new markets, and the enablers that decide whether a growth plan actually works.
Read more →Aug 16, 2026
Cost Reduction Framework for Case Interviews
How to structure a cost reduction case interview: COGS, operating expenses, process efficiency, and the strategic trade-offs that separate a real plan from a list of cuts.
Read more →Aug 11, 2026
Why AI Makes Structured Thinking More Important, Not Less
AI can generate a structure for any problem instantly. Here's why that makes the underlying skill (MECE thinking, building issue trees yourself) more valuable, not obsolete.
Read more →Stop staring at the problem. Start structuring it.
Free to start. No sign-up required.