01
Capture your thoughts.
Add questions, ideas, hypotheses, and conclusions. Each is a typed node with a role in the reasoning, so your map is structure, not a pile of notes.
Dare to conclude
Stop collecting opinions.
Start building conclusions.
Arguma is a visual tool for thinking through hard questions. Put your ideas, evidence, and assumptions on a canvas, link what supports or contradicts what, and when an assumption turns out wrong, see exactly which conclusions break with it.
Typed thoughtsQuestions, goals, hypotheses, conclusions.
Typed relationsSupports, contradicts, answers, derives from.
Hypothesis verdictsConfirmed, falsified, and how confident you are.
Are you a…
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How it works
Build reasoning maps, not note piles.
Capture questions, problems, ideas, hypotheses, and conclusions as typed nodes. Then connect them with relations that show what supports, contradicts, explains, or depends on what.
02
Connect them with intent.
Link them with typed relations: supports, contradicts, leads to. Each connection states how one thought bears on another, so the logic stays explicit.
03
See what survives.
Mark a hypothesis in research, confirmed, or falsified. When one is falsified, Arguma flags every conclusion built on it, so a broken assumption can't quietly stay true.
Conclusion dependencies
See what your conclusions depend on.
Arguma is the only mapping tool where marking a hypothesis as falsified automatically flags every conclusion that depended on it.
From the demo map: the red node is a falsified hypothesis. The conclusions below were built on it, and now they need another look.
Why Arguma was built
problem
The world is drowning in confident noise.
leads to
thought
Feeds, media, and AI tools hand out ready-made conclusions that sound right before they've been checked, and it's easy to adopt them as your own. Arguma was built as the antidote: a place to slow down, lay your reasoning out where you can see it, and keep only the conclusions that survive.
supports
conclusion
Don't inherit certainty. Build it.
Features
Organize it. Find it. Keep it yours.
Separate maps for separate questions, search across everything you've reasoned through, and export your thinking whenever you want it.
Separate maps for separate questions
Keep different lines of thinking apart: a startup decision, a research problem, a strategy bet, or a personal choice. Each map has its own structure, while labels help themes carry across your workspace.
Search across your reasoning
Arguma lets you search every thought, claim, hypothesis, and conclusion across all your maps. Find the reasoning without remembering where you put it.
Your thinking stays yours
Export your reasoning as JSON, Markdown, or PNG. Arguma can be your workspace without becoming a cage for your thoughts.
Do I need Arguma?
Built for people who think for a living.
Arguma is for work where casual certainty is expensive: strategy, research, writing, investing, product decisions, and any question where the reasoning matters.
Founder
Map product decisions
Separate customer evidence from founder intuition. See which decisions depend on untested assumptions before you bet the roadmap on them.
Researcher
Track competing hypotheses
Organize questions, evidence, open assumptions, falsified paths, and the confidence behind your current conclusions.
Writer
Strengthen the argument
Turn scattered notes into claims you can inspect. Keep the elegant sentence only after the reasoning underneath survives.
FAQ
What Arguma is, and what it isn't.
Is Arguma a mind mapping tool?
No. Mind maps connect ideas by association; Arguma maps reasoning. Every node has a type (question, idea, hypothesis, conclusion), and every link states how one thought bears on another: supports, contradicts, answers, derives from. A mind map can't tell you which of your conclusions just broke. Arguma can.
Is Arguma a debate platform?
No. Arguma is a personal reasoning workspace for mapping your own decisions, research questions, and beliefs. You can share a map read-only, but it is built for thinking things through, not for arguing with an audience.
How is Arguma different from argument mapping tools?
Classic argument maps weigh pro and contra around a fixed thesis. Arguma models the whole reasoning process: open questions, competing hypotheses with verdicts and confidence, and conclusions whose dependencies are tracked. Arguma is the only mapping tool where marking a hypothesis as falsified automatically flags every conclusion that depended on it.
How is Arguma different from Obsidian?
Obsidian is a knowledge base: notes linked by association, where the graph shows what mentions what: the links carry no meaning and nothing checks them. In Arguma the graph is the point: every link is a claim (supports, contradicts, answers, derives from), hypotheses carry verdicts, and falsifying one flags every conclusion that depended on it. Many people use both: import your vault to start from the notes you already have, reason in Arguma, archive back in Obsidian via Markdown export.
How much does Arguma cost?
You can start free with 3 maps, no card required.
Early access
Build conclusions you can defend.
Start with one map: a decision, a research question, a strategy, or a belief you keep repeating without checking. Put the reasoning where you can see it.
or jump straight into a question, rival explanations, or a decision