Fine-Tune a Speech-to-Text Model for Any Language - Including Yours

A step-by-step developer tutorial from Kostis at Mozilla Data Collective

Datasheets: The Missing Manual for your Dataset

In this video, produced by the Data Nutrition Project and illustrated by Jessica Yurkofsky, you'll learn more about the role of the datasheet and how you can use it to give clear guidance to potential downloaders about how your data can (and can't!) be used.

Upcoming Domain Change on 09 April

In mid-April, Mozilla Data Collective's primary domain will change to mozilladatacollective.com

MDC Release Notes - 30.03.26

379 new datasets with a Mozilla Common Voice update, improvements to the Python SDK (make sure you update to the latest!) and a preview of an upcoming feature. 👀

On contributing my Thorsten-Voice voice datasets

Thorsten Müller has created five TTS voice datasets totaling 40 hours of German speech data. In this community-authored post, he speaks to the importance of sharing his voice.

On contributing my Thorsten-Voice voice datasets [DE]

Thorsten Müller hat fünf TTS-Stimmdatensätze mit insgesamt 40 Stunden an deutschen Sprachdaten erstellt. In diesem von der Community verfassten Beitrag spricht er über die Bedeutung, seine Stimme zu teilen.

Why Whisper Still Struggles with Australian English - and What We Did About It

By Kathy Reid · Mozilla Data Collective Ask a Queenslander to say "no worries" into a Home Assistant Voice Preview. There's a decent chance it mishears them. Ask someone from Radelaide and things get worse. Ask anyone who grew up calling things "heaps good" and

How can a nearly century-old publisher remain relevant and continue to grow?

Panjebar Semangat, a weekly Javanese-language magazine established before Indonesian independence, is collaborating with Mozilla Data Collective to advance community-governed language dataset frameworks.

Call for proposals: MDC is commissioning mission-aligned datasets!

Mozilla Data Collective is building towards a multicultural, multilingual, and multimodal future that works for all of us. And over the past few months, we’ve listened as people have flagged what kinds of datasets they need, but are struggling to find.  So we’re pleased to announce that MDC

MDC Release Notes - 13.03.26

This week: 19 new datasets and a few small changes while we're heads down in some exciting new features that will be coming soon...

How to License Your Dataset for AI Training: Some Best Practices

We get a lot of questions about how to approach licensing your data for AI training. So to help you share your datasets, we’ve compiled some guidance here – it’s intended to be a living document, that we iterate with our partners and communities.  Explore Mozilla Data Collective What

Behind the scenes: Integrating MDC datasets into your Python project

Overcoming the complexity of AI Mozilla Data Collective helps communities to offer unique, multilingual, multicultural, and multimodal datasets. From transcribed and translated videos of narrated Ekpeye folktales to complex question-answering text pairs for the Georgian language, the diversity of datasets on our platform is core to our mission. But with

News

Cultural Heritage and AI: How Institutions Can Reclaim Control of Their Data

The institutions that safeguard humanity's cultural memory, galleries, libraries, archives, and museums (collectively known as the GLAM sector) are confronting a paradox that defines the current moment in AI development. Years of careful digitization of their archives have transformed physical collections into vast, machine-readable repositories of human knowledge.

Guide

Using the MDC Python SDK Library to Download Datasets

In this guide, you will learn how to use the MDC Python SDK Library to download datasets from the Mozilla Data Collective website.

News

MDC Release Notes - 27.02.26

This week: dataset filtering, enhanced uploader request flow, API improvements, and 20 new datasets!

News

MDC Release Notes - 13.02.26

This week: new features for uploaders, updates to dataset search, and new datasets on MDC!

Guides

Your Data, Your Rules: A Community Workshop for Dataset Governance

A practical guide for communities creating datasets together—no legal expertise required. Based on our data governance workshop at Mozilla Festival Zambia 2024 Your community has created something valuable: a dataset. Maybe it's voice recordings in your language. Maybe it's traditional knowledge, local photographs, or cultural

News

Help Shape the Future of Mozilla Data Collective

Mozilla Data Collective has an amazing opportunity for you to get a free ticket to the 2026 Mozilla Festival in beautiful Barcelona, Spain this November, 2026. We are looking for feedback to inform our 2026 roadmap. Help shape the future of ethical data-sharing by filling out the form below

FAQ

FAQ: How can I remove published datasets from MDC?

If you need to remove a dataset from Mozilla Data Collective after it has been published, you can make your dataset private through the following steps: 1. Sign into your account - make sure you are using the account that published the dataset originally 2. Go to your Profile >

Guides

Turning Your Data Into a Valuable ML Resource Without Giving Up Control

You might be sitting on something precious The modern world runs on data. One unfortunate result of this is the fact that many of us are unknowingly producing data for third-party companies, who use our content and actions as data points to make AI models that they then sell back

News

Latest: Asian Language datasets by communities on Mozilla Data Collective

The internet belongs to everyone—but right now, it doesn't work for everyone. From the islands of Borneo to the mountains of Pakistan, hundreds of millions of people speak languages that AI simply can't understand. That's a problem we can solve together. At Mozilla

News

Latest: African Language datasets by communities on Mozilla Data Collective

The internet belongs to everyone—but right now, it doesn't work for everyone. Millions of people speak languages that AI simply can't understand, and that's a problem we can solve together. At Mozilla Data Collective, we're proud to host a growing collection

News

Updates to MDC REST API and Python Library

Tl;dr: Update to newest version of the MDC Python library (0.2.0 or newer) to continue downloading datasets

FAQ

FAQ: How long does it take to publish my dataset on MDC?

We review every request to become a data provider on Mozilla Data Collective. Reviewing Uploader Requests If you have not already been in contact with our team about uploading data to Mozilla Data Collective, a member of our team will reach out to you via email to discuss your dataset