Common Voice Legal Terms by Mozilla

Open Legal LibraryUpdated 10 Dec 2025

These are the legal terms governing participation in Mozilla's Common Voice project. They outline eligibility requirements, rules for contributing voice data and text, and how contributions are made available under a Creative Commons CC0 public domain dedication. The terms also cover account usage, disclaimers of liability, and the governing law for the agreement.

Common Voice Legal Terms

Effective [effective date]

As of the “Last Updated” date above, the information and datasets we make available through Common Voice will now be accessible through [company name] Data Collective (“MDC”).

Through Common Voice, you can donate your voice, written sentences, and the other resources we need to build an open-source voice database that anyone can use to make innovative voice recognition apps for devices and the web.

You may only participate in Common Voice if you agree to these Common Voice Legal Terms (the “Terms”). Your use of [company name] Common Voice is governed by these Terms and Common Voice Privacy Notice.

Eligibility

Common Voice is open to anyone over the age of 19. If you are 19 or under, you must have your parent or guardian’s consent and they must supervise your participation in Common Voice.

Common Voice is part of the [company name] Community. As a result, if you chose to participate, you agree to follow the [company name] Community Participation Guidelines.

Your Contributions

We make [company name]’s Common Voice dataset available under the Creative Commons CC0 public domain dedication. That means it’s public and we’ve waived all copyrights to the extent we can under the law. If you participate in Common Voice, we require that you do the same. You agree that [company name] may offer all of the contributions you make available to Common Voice, including text, recordings, validations, and feedback (the “Contributions”) to the public under the CC0 public domain dedication.

In order to participate in Common Voice, [company name] also requires that you make three assurances:

First, that your Contributions are entirely your own creation.

Second, that your Contributions do not infringe on any third parties’ rights.

Third, that your Contributions comply with [company name]’s Acceptable Use Policy.

If you cannot make these assurances, you may not participate in Common Voice.

In addition, if you participate in the Common Voices Spontaneous Speech project, you agree not to include any sensitive or personal data about yourself and others in the recordings you submit.

Lastly, [company name] makes the Common Voice datasets available to the general public exclusively through MDC under a Creative Common Zero (CC0) license, unless otherwise specified. Consistent with our data stewardship principles we ask that you not post, distribute, or mirror any Common Voice dataset, in whole or in part, on other platforms or services, and that access by others take place only through MDC.

Your Account

You do not have to create an account to participate in Common Voice.

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About this template

What is this template?

This is a platform terms of service and data contribution agreement. It contains a specific intellectual property waiver under CC0 and a limitation of liability capped at $500. It is not a software license or a bilateral service level agreement.

When should you use it?

Use this when launching a public data collection project where you want participants to waive all rights to their submissions. Use a standard SaaS agreement instead if you are providing a paid software service with proprietary data controls.

What's inside

ClauseNameWhat it does
1EligibilityRestricts participation to users over 19 years old unless a parent or guardian provides consent and supervision.
2Your ContributionsRequires contributors to waive all copyrights by offering text, recordings, and feedback under the CC0 public domain dedication.
3Your AccountGrants permissions for the platform to publish metrics, demographic data, and contributions publicly while keeping email addresses private.
5DisclaimersLimits the total liability of the company to a maximum amount of $500 for any claims arising from participation.
8TerminationEstablishes that submitted contributions remain publicly available even after a user's access is suspended or ended.

Who it's for

  • an organization hosting a crowdsourced dataset for voice recognition technology
  • individuals donating recordings or text to a public domain project
  • researchers contributing demographic data to improve speech-to-text tools

Law it's drafted under

Refers to
Creative Commons CC0

California note

This version is drafted for California. US contract and employment rules vary by state, so it will not transfer cleanly elsewhere. Tell GitLaw where the parties are and it adjusts the draft.

Jurisdiction
California (US)
Source
Common Voice Legal Terms by Mozilla
from Mozilla
Document info
HTML document. Document created on Wed Dec 10th, 2025. Last updated on Wed Dec 10th, 2025.
This document is public
Licensed under CC BY-SA 4.0 (Attribution-ShareAlike).
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