# Mastodon

id: ent_mastodon  
wikidata: Q27986619  
kind: product  
timeline: /timelines/mastodon.md  
page: /record/mastodon  
same_as: https://asof.is/record/mastodon (how to cite the id: /identifiers.md)  

Mastodon is a free and open-source federated social networking project, made by Mastodon gGmbH.

## Key facts

- Maker: Mastodon gGmbH · claim: /claim/clm_83C3EE9FC528.md

## Questions

**Who makes Mastodon?** Mastodon gGmbH.

## Fact pages

One page per fact: the current value with its sources, then every dated value and what replaced what. Fetch any of them as markdown.

- [Mastodon country](/record/mastodon/country.md)

## Current state

What the record asserts: claims that held, valid by their sources or primary-sourced at confidence 0.7 or more. Unverified, disputed, retracted and review-marked claims are listed below, labelled, not here.

- [Mastodon](/record/mastodon.md) | developer | Mastodon gGmbH | valid undated to present | conf 0.80 | valid | [clm_83C3EE9FC528](/claim/clm_83C3EE9FC528.md)
  sources: https://www.wikidata.org/wiki/Q27986619, https://connect.fediforum.org/open-social-web-providers/mastodon-ggmbh/, https://blog.joinmastodon.org/2025/11/the-future-is-ours-to-build-together/
- [Mastodon](/record/mastodon.md) | country | Germany | valid undated to present | conf 0.95 | valid | [clm_2039678A5F93](/claim/clm_2039678A5F93.md)
  sources: https://joinmastodon.org/about, https://www.wikidata.org/wiki/Q27986619

## All claims

One claim per line, newest first. Superseded claims stay visible.

- [Mastodon](/record/mastodon.md) | released | 2016-10-05 | valid 2016-10-05 to present | conf 0.85 | unverified | [clm_BDF90BB1F2B3](/claim/clm_BDF90BB1F2B3.md)
  sources: https://www.wikidata.org/wiki/Q27986619, https://news.ycombinator.com/item?id=12646083
- [Mastodon](/record/mastodon.md) | country | Germany | valid undated to present | conf 0.95 | valid | [clm_2039678A5F93](/claim/clm_2039678A5F93.md)
  sources: https://joinmastodon.org/about, https://www.wikidata.org/wiki/Q27986619
- [Mastodon](/record/mastodon.md) | developer | Mastodon gGmbH | valid undated to present | conf 0.80 | valid | [clm_83C3EE9FC528](/claim/clm_83C3EE9FC528.md)
  sources: https://www.wikidata.org/wiki/Q27986619, https://connect.fediforum.org/open-social-web-providers/mastodon-ggmbh/, https://blog.joinmastodon.org/2025/11/the-future-is-ours-to-build-together/
- [Mastodon](/record/mastodon.md) | license | GNU Affero General Public License, version 3.0 | valid undated to present | conf 0.70 | unverified | [clm_DA1B6F2227A8](/claim/clm_DA1B6F2227A8.md)
  sources: https://www.wikidata.org/wiki/Q27986619, https://github.com/tootsuite/mastodon/blob/master/LICENSE

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