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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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200 Datasets

MirasAI

Kannada Time Aligned Speech Corpus

A 5-hour Kannada speech dataset with time-aligned transcriptions, designed for ASR, forced alignment, and speech research.

License: CC-BY-NC-SA-4.0

Locale: kan

Task: ASR

Format: OGG, SRT

Size: 355.77 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Kelabit

A collection of spontaneous responses to questions in Kelabit.

License: CC0-1.0

Locale: kzi

Task: ASR

Format: MP3

Size: 194.34 MB

MEDIAMEN

Mediamen Punjabi Literature Corpus

This corpus is a collection of one million tokens of Western Punjabi language. The data was produced under the Mediamen publishing agency over the last ten years. The corpus contains work of literature including short stories, novels, fiction, non-fiction, and dramas. 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: pnb

Task: NLP

Format: TXT

Size: 1.82 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Sinhala

A collection of spontaneous responses to questions in Sinhala.

License: CC0-1.0

Locale: si

Task: ASR

Format: MP3

Size: 8.14 MB

Kaleem Art Press

Multilingual Religious Parallel Corpus (Kaleem Art Press)

This dataset is a multilingual parallel sentences corpus containing 6,465 aligned sentence units with approximately 0.98 million words, curated from Kaleem Art Press archives. It includes parallel religious text data in Arabic, Urdu, Saraiki (standard and dialectal), Punjabi (Shahmukhi), and English, supporting research in machine translation, comparative linguistics, digital humanities, and low-resource language studies.

License: CC-BY-SA-4.0

Locale: mul

Task: MT

Format: CSV

Size: 2.27 MB

Common Voice

Common Voice Scripted Speech 26.0 - Rukai

A collection of read speech recordings in Rukai.

License: CC0-1.0

Locale: dru

Task: ASR

Format: MP3

Size: 213.64 MB

Keblagh e Azergi

Keblagh-e-Azergi Hazargi literature corpus

This corpus is a collection of more than one hundred thousand tokens of Hazargi language. The corpus contains work of literature, poems, folk and short stories and dramas. The data is being shared with the approval of the authors. It claims to support linguistic research, language technology development and cultural preservation.

License: CC-BY-NC-4.0

Locale: haz

Task: NLP

Format: TXT

Size: 193.28 KB

Common Voice

Common Voice Spontaneous Speech 4.0 - Cypriot Greek

A collection of spontaneous responses to questions in Cypriot Greek.

License: CC0-1.0

Locale: el-CY

Task: ASR

Format: MP3

Size: 211.49 MB

Aim Foundation

Aim Foundation Dari Literature Corpus

This corpus is a collection of more than seven hundred thousand tokens of Dari language. The corpus contains work of literature including poems, stories, novels, fictional and non-fictional and different articles. 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: prs

Task: NLP

Format: TXT

Size: 1.74 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Nubi

A collection of spontaneous responses to questions in Nubi.

License: CC0-1.0

Locale: kcn

Task: ASR

Format: MP3

Size: 300.90 MB

Community

Sindhi Corpus

SdCorpus is a large scale monolingual Sindhi text corpus collected from publicly available web sources for NLP and language model development.

License: CC-BY-NC-4.0

Locale: snd

Task: LM

Format: TXT

Size: 321.00 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Gorani

A collection of spontaneous responses to questions in Gorani.

License: CC0-1.0

Locale: hac

Task: ASR

Format: MP3

Size: 225.34 MB

Keblagh e Azergi

Elkhani Hazargi Literature Corpus

Hazargi literary corpus (~0.5M tokens) of poetry, folklore, and prose texts representing Hazara linguistic and cultural heritage.

License: CC-BY-NC-4.0

Locale: haz

Task: NLP

Format: TXT

Size: 2.46 MB

Open Home Foundation

Gosia 1.0

Text to speech dataset for Polish, female speaker, approximately 2 hours of read speech.

License: CC0-1.0

Locale: pl-PL

Task: TTS

Format: WEBM

Size: 39.75 MB

Digital Divide Data

ddd-kenya-luhya-70hrs-asr

A collection of high-quality, crowdsourced audio recordings and verified transcriptions for the Luhya language, produced by Digital Divide Data.

License: CC-BY-4.0

Locale: luy

Task: ASR

Format: WAV, XLSX, TSV

Size: 13.90 GB

Common Voice

Common Voice Scripted Speech 26.0 - Mina

A collection of read speech recordings in Mina.

License: CC0-1.0

Locale: gej

Task: ASR

Format: MP3

Size: 216.32 MB

Digital Divide Data

ddd-kenya-somali-68hrs-asr-part1

A collection of high-quality, crowdsourced audio recordings and verified transcriptions for Somali language, produced by Digital Divide Data

License: CC-BY-4.0

Locale: som

Task: ASR

Format: WAV, TSV

Size: 7.68 GB

Common Voice

Common Voice Spontaneous Speech 4.0 - Eastern Min

A collection of spontaneous responses to questions in Eastern Min.

License: CC0-1.0

Locale: cdo

Task: ASR

Format: MP3

Size: 191.79 MB

Digital Divide Data

ddd-kenya-somali-68hrs-asr-part2

A collection of high-quality, crowdsourced audio recordings and verified transcriptions for the Somali language, produced by Digital Divide Data.

License: CC-BY-4.0

Locale: som

Task: ASR

Format: WAV, TSV

Size: 8.07 GB

Common Voice

Common Voice Scripted Speech 26.0 - Croatian

A collection of read speech recordings in Croatian.

License: CC0-1.0

Locale: hr

Task: ASR

Format: MP3

Size: 890.21 KB

Digital Divide Data

ddd-kenya-somali-68hrs-asr-part3

A collection of high-quality, crowdsourced audio recordings and verified transcriptions for the Somali language, produced by Digital Divide Data.

License: CC-BY-4.0

Locale: som

Task: ASR

Format: WAV, TSV

Size: 1.33 GB

MDC Curators

CoVoST 2 English - Chinese (China)

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

License: CC-BY-NC-4.0

Locale: en, zh-CN

Task: MT

Format: MP3, TSV

Size: 12.56 GB

Institute of African Digital Humanities

Sample Tupuri-Bango_TTS-Dataset (male voice)

Tupuri-Bango (tui) scripted TTS dataset: 983 clips (≈1h 06m) from 10 sessions, AGLC orthography. Kaele & Mayo-Danay, Far-North, Cameroon.

License: NOODL-1.0

Locale: tui

Task: TTS

Format: MP3, TSV

Size: 46.93 MB

Common Voice

Common Voice Scripted Speech 26.0 - Chokwe

A collection of read speech recordings in Chokwe.

License: CC0-1.0

Locale: cjk

Task: ASR

Format: MP3

Size: 263.01 MB