Loomio is an open-source collaborative decision-making tool used by co-ops, nonprofits, and communities, centered on threaded discussion and structured proposals with voting (agree, disagree, abstain, block). Argumentree is an alternative for groups that want to capture and evaluate the reasoning, not just the vote: it organizes decisions as hierarchical pro/con argument trees, extracts arguments from transcripts and documents with AI, lets participants rate arguments so consensus is measured as net support, keeps a full audit trail, and translates arguments across 66 languages.
Loomio captures the discussion and the vote. Argumentree captures the reasoning — the structured pro/con argument behind every decision.
Loomio is a well-regarded open-source tool for collaborative decision-making, popular with co-ops, nonprofits, and communities. It structures a decision as a threaded discussion plus a proposal with built-in voting (agree, disagree, abstain, block), so groups can decide asynchronously and on the record. It's a strong fit when the core need is proposals and voting.
| Loomio | Argumentree | |
|---|---|---|
| Decision structure | Discussion thread + proposal vote | Hierarchical pro/con argument tree |
| Captures | The conversation and the outcome | The reasoning behind the outcome |
| Evaluation | Vote (agree/disagree/abstain/block) | Per-argument rating → consensus scores |
| AI argument extraction | — | From transcripts & documents |
| Languages | Multiple (community translations) | 66, AI-translated arguments & chains |
| Best for | Proposals and group voting | Mapping and justifying decisions |
New to the approach? See what is argument mapping and consensus building.
Loomio is an open-source collaborative decision-making tool used by co-ops, nonprofits, and communities. It centers on threaded discussions and structured proposals with built-in voting (agree, disagree, abstain, block), designed to help groups make decisions asynchronously and transparently.
Argumentree is an alternative for teams that want to capture the reasoning behind a decision, not just the vote. Where Loomio organizes a decision as a discussion thread plus a proposal vote, Argumentree organizes it as a structured pro/con argument tree — with AI extraction from transcripts and documents, participant rating that aggregates into consensus scores, and a full audit trail of how the decision was reached.
Both support group decisions, asynchronously, with a record. The difference is structure: Loomio captures the conversation and the vote; Argumentree captures the argument — every claim mapped to the evidence and counterarguments for and against it, scored by the group. Argumentree also extracts arguments from meeting transcripts with AI and translates across 66 languages.
Map the arguments behind your group's decisions with Argumentree.
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