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FAQs

Participation Guidelines

Responsible Disclosure

News and Documentation

Data and Model Competitions

[email protected]

Mozilla Data Collective is a mission-locked British company, incubated by Mozilla Foundation, and backed by the not-for-profit Mozilla.org

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199 Datasets

PROXIMA

Sindhi Names by Proxima AI

Curated collection of 10,300 Sindhi personal names in Arabic script for NLP and language modeling tasks.

License: CC-BY-NC-SA-4.0

Locale: snd

Task: NLG

Format: CSV

Size: 57.15 KB

AImpower.org

English Stuttered Speech

The dataset include 39 hours of transcribed and annotated conversational and voice command reading speech from 45 English speakers who stutter.

License: CC-BY-SA-4.0

Locale: en

Task: ASR

Format: WAV, TXT

Size: 9.75 GB

CLEAR Global

TWB Voice 1.0 - Hausa

Read speech corpus of 58 hours of Hausa audio with transcriptions, collected by CLEAR Global for ASR development.

License: CC-BY-NC-4.0

Locale: hau

Task: ASR

Format: WAV, TSV

Size: 11.88 GB

Mozilla Common Voice

Common Voice Spontaneous Speech 5.0 - Toba Qom

A collection of spontaneous responses to questions in Toba Qom.

License: CC0-1.0

Locale: tob

Task: ASR

Format: MP3

Size: 173.39 MB

Baloch Publishers Multan

Baloch Publishers Saraiki Literature Corpus

This corpus is a collection of one million tokens of Saraiki language. The data was produced under the Baloch Publishers over the last ten years. The corpus contains work of literature including dictionaries, short stories, novels, fiction, non-fiction, and travelogue. The data is being shared with the approval of the authors. It aims to support linguistic research, language technology development, and cultural preservation.

License: CC-BY-NC-4.0

Locale: skr

Task: NLP

Format: TXT

Size: 2.04 MB

Mozilla Common Voice

Common Voice 7.0 - Single Word Target Segment

This dataset contains the numbers 0 to 9 and the words "yes" and "no" in 34 languages. It contains 84 validated hours of speech.

License: CC0-1.0

Locale: mul

Task: ASR

Format: TSV, MP3

Size: 3.51 GB

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Institute of African Digital Humanities

Yezoum_ALCAM-MultimodalDataset

This dataset comprises aligned audio and text data in Yezoum with French equivalents.

License: NOODL-1.0

Locale: ewo

Task: NLP

Format: MP3, TSV

Size: 12.81 MB

Mozilla Common Voice

Common Voice Scripted Speech 27.0 - Ushojo

A collection of read speech recordings in Ushojo.

License: CC0-1.0

Locale: ush

Task: ASR

Format: MP3

Size: 129.53 MB

Institute of African Digital Humanities

Ewondo_Fong_ALCAM-MultimodalDataset

Curated Ewondo (Fong) sentences with French translations, audio recordings, and sentence–audio alignments.

License: NOODL-1.0

Locale: ewo

Task: NLP

Format: MP3, TSV

Size: 16.80 MB

Mozilla Common Voice

Common Voice Spontaneous Speech 5.0 - Basaa

A collection of spontaneous responses to questions in Basaa.

License: CC0-1.0

Locale: bas

Task: ASR

Format: MP3

Size: 109.74 MB

Forum for Language Initiatives

Gojri Literature Corpus

A curated Gojri (Gujari) text corpus of approximately 60K tokens covering poetry, stories, short stories, and literary prose.

License: CC-BY-NC-4.0

Locale: gju

Task: NLP

Format: TXT

Size: 117.97 KB

Mozilla Common Voice

Common Voice Spontaneous Speech 5.0 - Gorani

A collection of spontaneous responses to questions in Gorani.

License: CC0-1.0

Locale: hac

Task: ASR

Format: MP3

Size: 225.34 MB

Community

Ladino: Una Fraza al Diya

307 Ladino (Judeo-Spanish) language learning sentences with translations in Turkish, English, and Spanish, plus audio recordings and images.

License: CC-BY-4.0

Locale: lad

Task: NLP

Format: OGG, JPEG, TSV

Size: 76.35 MB

Mozilla Common Voice

Common Voice Spontaneous Speech 5.0 - Arvanitika

A collection of spontaneous responses to questions in Arvanitika.

License: CC0-1.0

Locale: aat

Task: ASR

Format: MP3

Size: 46.85 MB

Institute of African Digital Humanities

Bulu_ALCAM-MultimodalDataset

Bulu ALCAM multimodal dataset: lexical entries and example sentences in Bulu (IPA) with French equivalents, audio recordings, and alignment file.

License: NOODL-1.0

Locale: bum

Task: NLP

Format: MP3, TSV

Size: 31.28 MB

GriôTech

Territórios Digitais

Dataset on community-driven responses to disinformation and AI in marginalized territories in Brazil, based on participatory research.

License: CC-BY-4.0

Locale: pt, en

Task: N/A

Format: DOCX, PDF, XLSX

Size: 4.24 MB

Community

CV Korean Test 25.0 - Noise-Augmented (SCAI)

A noise-augmented version of the Mozilla Common Voice Korean test split for robust ASR evaluation under realistic acoustic conditions.

License: CC0-1.0

Locale: ko

Task: ASR

Format: MP3, JSONL

Size: 21.01 MB

MDC Curators

CoVoST 2 Chinese (China) - English

The dataset includes audio files in Chinese (China) and their translations in English.

License: CC-BY-NC-4.0

Locale: zh-CN, en

Task: MT

Format: MP3, TSV

Size: 713.86 MB

Jamuna Printing and Publishing Ltd.

The Daily Jugantor Bengali Language Corpus

Monolingual Bengali corpus of 10.6 million words from Daily Jugantor, a major Bengali news source.

License: CC-BY-NC-SA-4.0

Locale: ben

Task: NLP

Format: DOCX

Size: 40.49 MB

Mozilla Common Voice

Common Voice Scripted Speech 27.0 - Taiwanese (Minnan)

A collection of read speech recordings in Taiwanese (Minnan).

License: CC0-1.0

Locale: nan-tw

Task: ASR

Format: MP3

Size: 471.51 MB

Institute of African Digital Humanities

Mada-French Parallel Corpus 1.0

This dataset comprises a parallel corpus of 2,154 lines of translations of literary texts from Mada (mxu) to French.

License: NOODL-1.0

Locale: mxu

Task: MT

Format: TSV

Size: 122.37 KB

Mozilla Common Voice

Common Voice Scripted Speech 27.0 - Kalenjin

A collection of read speech recordings in Kalenjin.

License: CC0-1.0

Locale: kln

Task: ASR

Format: MP3

Size: 1.61 GB

MirasAI

Noakhalian (নোয়াখাইল্লা) Text Corpus

A 500K token corpus of Noakhalian linguistic data including drama scripts and cultural texts for professional NLP research and language preservation.

License: CC-BY-NC-4.0

Locale: oak

Task: NLP

Format: TXT, DOCX

Size: 3.61 MB

Community

Thorsten-Voice Dataset 2021.06 Emotional

German emotional speech dataset (2,400 recordings, 8 emotions), CC0 licensed, 22,050 Hz mono WAV, for TTS and speech research.

License: CC0-1.0

Locale: de-DE

Task: TTS

Format: WAV,CSV

Size: 380.80 MB