---
title: Kialo
type: platform
status: active
country: US
website: https://www.kialo.com
logo: /assets/org-logos/kialo.webp
contact:
  checked: 2026-08-01
  form: https://support.kialo.com/en/contact/
  source: https://support.kialo.com/en/contact/
summary: The world's largest argument-mapping and structured deliberation platform
  — uses a debate-tree format to organise pros, cons, and sub-arguments. Proprietary
  and free to use, with a separate education product.
concepts:
- democracy-tools
- consensus-mapping
- deliberative-democracy
location:
  latitude: 40.7128
  longitude: -74.006
  name: New York, USA
  precision: city
events:
- date: '2017-08-01'
  title: Founded by Errikos Pitsos as a structured debate and argument-mapping platform
  url: https://en.wikipedia.org/wiki/Kialo
  quote: was founded by German-born entrepreneur and London School of Economics and
    Political Science graduate Errikos Pitsos
  proof_level: high
  url_checked: '2026-08-10'
  notable: true
activity:
  manual:
    checked: 2026-06-07
    date: 2026-06-07
    note: Website loaded. Its a web app. Copyright at bottom mention © Kialo 2026
  rss:
    checked: 2026-08-17
    note: No feed found
last_checked: '2026-06-15'
---

Kialo is an online platform for structured argument mapping and deliberation, using a tree-based format in which central claims are supported or challenged by sub-arguments that can themselves be evaluated. This structure prevents discussion from collapsing into unanchored opinion streams and makes it possible to see the shape of a debate at a glance.

The platform is free to use and hosts public debates alongside private group discussions. It is proprietary rather than open source. Kialo Edu, a fork aimed at secondary and higher education, is used in courses at universities including Harvard and Princeton, and integrates with Moodle, Blackboard, and Google Classroom. It won the Bett Award 2025 for Best Free Digital Content.

## Links

- Website: [kialo.com](https://www.kialo.com)
- Education: [kialo-edu.com](https://www.kialo-edu.com)
- Wikipedia: [Kialo](https://en.wikipedia.org/wiki/Kialo)

## See also

- [Consensus Mapping](../concepts/consensus-mapping.md)
- [Pol.is](polis.md)