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Mozilla Data Collective is rebuilding the AI data ecosystem with communities at the centre. Access over 300 high-quality global datasets, built by and for the community in a transparent and ethical way.

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Datasets

Common Voice

Common Voice Spontaneous Speech 1.0 - Irish (Ireland)

A collection of spontaneous spoken phrases in Irish (Ireland).

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Gurani

A collection of spontaneous spoken phrases in Gurani.

Task: ASR

Format: MP3

License: CC-0

Size: 212.85 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - German

A collection of spontaneous spoken phrases in German.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Western Frisian (Netherlands)

A collection of spontaneous spoken phrases in Western Frisian (Netherlands).

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Swiss German

A collection of spontaneous spoken phrases in Swiss German.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Manx

A collection of spontaneous spoken phrases in Manx.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Pu-Xian Chinese

A collection of spontaneous spoken phrases in Pu-Xian Chinese.

Task: ASR

Format: MP3

License: CC-0

Size: 193.50 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Welsh

A collection of spontaneous spoken phrases in Welsh.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Greek (Cyprus)

A collection of spontaneous spoken phrases in Greek (Cyprus).

Task: ASR

Format: MP3

License: CC-0

Size: 193.50 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - French

A collection of spontaneous spoken phrases in French.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Galician

A collection of spontaneous spoken phrases in Galician.

Task: ASR

Format: MP3

License: CC-0

Size: 102.40 MB

Created: 9/10/2025

Common Voice

Common Voice Spontaneous Speech 1.0 - Huichol

A collection of spontaneous spoken phrases in Huichol.

Task: ASR

Format: MP3

License: CC-0

Size: 193.50 MB

Created: 9/10/2025

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Join Mozilla Data Collective

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Mozilla Data Collective wants to radically reimagine our data as power. We are anti-extractivism, anti-monopoly and deeply, profoundly pro-people. We are a collective of linguists, technologists, activists, researchers and creatives who want AI to be all it promises to be - not all it threatens to be. Here, you can share your datasets on your own terms.

FAQs

Find answers quickly

What is Mozilla Data Collective?

Mozilla Data Collective is a platform in the truest sense. It’s yours to stand on, and make of it what you will. We have dual roots in two Mozilla projects - Common Voice, a CC0 public dataset to help tech speak your language - and the Data Futures Lab - an experimental space for instigating new approaches to data stewardship challenges. Mozilla Data Collective works by allowing you to share your data, retain ownership of it, and control who uses it.


How does it work?

We partner with organizations and individuals to make their data available through Mozilla Data Collective. You can share openly, using existing licenses like Creative Commons, or you can build your own. You can open up your data for everyone, or just for some types of downloaders, you can set custom constraints, ask for exchange, compensation or recognition. You can govern it as an individual, a co-operative, a trust or something else. After all, it’s your data. The people who access your datasets are authenticated, and held in legally binding contracts, and we have a number of dataset protection features. If you are interested in hosting data on Mozilla Data Collective, please reach out to us at mozilladatacollective@mozillafoundation.org.


Who is behind Mozilla Data Collective?

We are backed and stewarded by Mozilla Foundation - the non-profit, movement-building, and philanthropy arm of Mozilla.