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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

Bangladesh Traffic Signs Dataset

A Bangladesh traffic sign image dataset featuring signs in Bengali language across diverse real-world conditions for classification and detection tasks.

License: CC-BY-NC-4.0

Locale: ben, eng

Task: CV

Format: JSON, JPEG

Size: 1.35 GB

Common Voice

Common Voice Spontaneous Speech 4.0 - Thai

A collection of spontaneous responses to questions in Thai.

License: CC0-1.0

Locale: th

Task: ASR

Format: MP3

Size: 1.58 MB

Habib University

Burushaski-English Speech Translation Corpus

A linguistically informed Burushaski speech - English text corpus containing 14,970 short audio recordings paired with corresponding English text translations.

License: CC-BY-NC-SA-4.0

Locale: bsk

Task: MT

Format: WAV, TXT

Size: 921.47 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Basaa

A collection of spontaneous responses to questions in Basaa.

License: CC0-1.0

Locale: bas

Task: ASR

Format: MP3

Size: 109.74 MB

Community

Sindhi Question-Answering Dataset (SdQuAD)

A benchmark Sindhi question answering dataset for advancing machine reading comprehension and NLP research in a low-resource language.

License: CC-BY-NC-4.0

Locale: snd

Task: LLM

Format: JSON

Size: 500.50 KB

Common Voice

Common Voice Scripted Speech 26.0 - Paiwan

A collection of read speech recordings in Paiwan.

License: CC0-1.0

Locale: pwn

Task: ASR

Format: MP3

Size: 281.76 MB

Community

Sindhi Parts Of Speech (SiPOS)

A large-scale Sindhi Part-of-Speech (SiPOS) tagging dataset for developing and evaluating NLP models in a low-resource language.

License: CC-BY-NC-4.0

Locale: snd

Task: NLP

Format: TXT

Size: 874.04 KB

Common Voice

Common Voice Scripted Speech 26.0 - Breton

A collection of read speech recordings in Breton.

License: CC0-1.0

Locale: br

Task: ASR

Format: MP3

Size: 853.55 MB

Community

Biomedical Urdu Named Entity Recognition (BioUNER)

Biomedical Urdu Named Entity Recognition dataset for advancing healthcare and clinical NLP research in Urdu.

License: CC-BY-NC-4.0

Locale: urd

Task: NLP

Format: CSV

Size: 336.69 KB

Common Voice

Common Voice Scripted Speech 26.0 - Bateri

A collection of read speech recordings in Bateri.

License: CC0-1.0

Locale: btv

Task: ASR

Format: MP3

Size: 205.82 MB

Kaleem Art Press

Jhoke Publisher Multan’s Saraiki Newspaper Corpus

Jhoke Publisher Multan’s Saraiki Newspaper Corpus (~1.25M tokens) is a normalized UTF-8 collection of Saraiki newspaper.

License: CC-BY-NC-4.0

Locale: skr

Task: NLP

Format: TXT

Size: 2.30 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Ruuli

A collection of spontaneous responses to questions in Ruuli.

License: CC0-1.0

Locale: ruc

Task: ASR

Format: MP3

Size: 365.90 MB

Kaleem Art Press

Saraiki-English Parallel Corpus

English–Saraiki parallel corpus: 51,447 aligned sentence pairs (~0.89M words), translated by Kaleem Art Press for MT and Saraiki NLP research.

License: CC-BY-NC-4.0

Locale: mul

Task: MT

Format: CSV

Size: 1.92 MB

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

MirasAI

Punjabi 10 Hours TTS

10-hour Punjabi TTS dataset in Shahmukhi script with paired audio and transcripts, designed for speech synthesis and Punjabi language technology.

License: CC-BY-NC-SA-4.0

Locale: pnb

Task: TTS

Format: WEBM, TSV

Size: 481.96 MB

Common Voice

Common Voice Spontaneous Speech 4.0 - Wixárika

A collection of spontaneous responses to questions in Wixárika.

License: CC0-1.0

Locale: hch

Task: ASR

Format: MP3

Size: 199.53 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

Common Voice

Common Voice Scripted Speech 26.0 - Kinyarwanda

A collection of read speech recordings in Kinyarwanda.

License: CC0-1.0

Locale: rw

Task: ASR

Format: MP3

Size: 57.18 GB

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

Common Voice

Common Voice Scripted Speech 26.0 - Chinese (Hong Kong)

A collection of read speech recordings in Chinese (Hong Kong).

License: CC0-1.0

Locale: zh-HK

Task: ASR

Format: MP3

Size: 3.43 GB

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

Common Voice

Common Voice Spontaneous Speech 4.0 - Lango

A collection of spontaneous responses to questions in Lango.

License: CC0-1.0

Locale: laj

Task: ASR

Format: MP3

Size: 1.31 MB

MirasAI

Tamil Time Aligned Speech Dataset

5-hour Tamil speech dataset with time-aligned transcripts, designed for ASR, forced alignment, subtitle generation, and speech-language research.

License: CC-BY-NC-SA-4.0

Locale: tam

Task: ASR

Format: OGG, SRT

Size: 37.11 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