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MCV (Common Voice)
A multilingual open voice dataset created by Mozilla Common Voice, an initiative to help teach machines how real people speak
Owner
Mozilla Foundation
Type
dataset
Licence
CC0-1.0
Last evaluated
24.03.2025
Origin country
United States of America
contact
commonvoice@mozilla.comRelease date
-
DPG since
27.02.2023
The following repositories were submitted by the solution and included in our evaluation. Any repositories, add-ons, features not included in here were not reviewed by us.
* This information is self-reported and updated annually



Because of diversity issues within AI training sets, technology often displays gender bias. More voice technology performing better for men than women, to safety equipment being designed to support male forms rather than female ones, we have a gender equity problem in the design and role of tech. Common Voice is a way for women and gender-conforming people to be better represented in voice AI training sets. We have a gender action plan, and specific interventions to support people across the gender spectrum to participate, including writing tons, contributions, and gender working group., Substantial voice AI training sets remain proprietary, held by big companies in such a way that stifles innovation. By making Common Voice open access we have enabled a wide spectrum of innovative organizations to build ASR (automatic speech recognition) for free. The same AI training set inequities that impact women and gender-diverse people also impact People of Colour, neurodiverse people, and those with speech pathologies. By creating an open platform to crowdsource data from anyone and everyone who can speak, we are creating real representation opportunities in voice datasets. This will support access to technology and reduce the digital divide. , Common Voice is a consortium project stewarded by Mozilla but with investment from the Gates Foundation, GIZ, FCDO, and NVIDIA (with more partners to come). This consortium of for-profit, nonprofit, and government are all coming together to advance equitable open technology in MCV.
No mandatory proprietary dependencies
No documentation available.
Yes
Principles for Digital Development
PII data is collected and stored but NOT distributed.
https://commonvoice.mozilla.org/en/terms - age limits, keeping list of downloaders for right to be forgotten, reducing dataset mirroring and forking, community participation guidelines in place, active community manager Account data. You do not need to create an account to use Common Voice. If you decide to create an account, we receive your username and avatar, if you submit one. Your email address is associated with your demographic and interaction data but is not shared to the public. We display leaderboards showing the number of recordings users make. You have the option whether or not you wish to appear on the leaderboards. You can delete your account at any time and your username and email will be removed. For more details - https://commonvoice.mozilla.org/en/privacy
Content is NOT collected NOT stored and NOT distributed.
Yes
children cannot participate without a guardian as per /terms https://www.mozilla.org/en-US/about/governance/policies/participation/
2026-02-02 12:45:26
Francis Morton Tyers (Applicant) submitted application for Mozilla Common Voice (13682)
2026-01-30 15:11:44
Admin (Admin) modified owner from 4417 (Common Voice) to 4757 (Francis Morton Tyers) for Mozilla Common Voice (13682)
2026-01-23 01:30:03
System created a refresher application for Mozilla Common Voice (12047)
2026-01-23 01:30:03
System created an autofill refresher application for Mozilla Common Voice (13682)
2025-03-24 03:19:28
Ricardo Torres (L2 Reviewer) submitted their review of Mozilla Common Voice (152) and found it to be a DPG
2025-03-24 03:19:27
System moved Mozilla Common Voice dataset (12047) to expired because parent application is now DPG.
2025-03-24 03:19:27
System unmarked Mozilla Common Voice (12047) as a nominee
2025-03-24 03:19:23
Ricardo Torres (L2 Reviewer) passed Scale of Solution for Mozilla Common Voice (12047)
2025-03-24 03:19:20
Ricardo Torres (L2 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice (12047)
2025-03-24 03:19:15
Ricardo Torres (L2 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice (12047)
2025-03-24 03:19:12
Ricardo Torres (L2 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice (12047)
2025-03-24 03:19:09
Ricardo Torres (L2 Reviewer) passed 8. Standards & Best Practices for Mozilla Common Voice (12047)
2025-03-24 03:19:06
Ricardo Torres (L2 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice (12047)
2025-03-24 03:19:03
Ricardo Torres (L2 Reviewer) passed 6. Mechanism for Extracting Data for Mozilla Common Voice (12047)
2025-03-24 03:18:58
Ricardo Torres (L2 Reviewer) passed 5. Documentation for Mozilla Common Voice (12047)
2025-03-24 03:18:56
Ricardo Torres (L2 Reviewer) passed 4. Platform Independence for Mozilla Common Voice (12047)
2025-03-24 03:18:53
Ricardo Torres (L2 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice (12047)
2025-03-24 03:18:40
Ricardo Torres (L2 Reviewer) passed 2. Open Licensing for Mozilla Common Voice (12047)
2025-03-24 03:18:37
Ricardo Torres (L2 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice (12047)
2025-03-24 03:18:33
Ricardo Torres (L2 Reviewer) passed General Information for Mozilla Common Voice (12047)
2025-03-24 03:18:10
Ricardo Torres (L2 Reviewer) pulled Mozilla Common Voice (12047) under review
2025-02-07 18:07:56
System remove tag Late from Mozilla Common Voice (12047)
2025-02-07 18:07:56
Bolaji Ayodeji (L1 Reviewer) submitted their review of Mozilla Common Voice (12047)
2025-02-07 18:07:47
Bolaji Ayodeji (L1 Reviewer) passed Scale of Solution for Mozilla Common Voice (12047)
2025-02-07 18:07:40
Bolaji Ayodeji (L1 Reviewer) edited 3. Clear Ownership for Mozilla Common Voice (12047)
2025-02-07 18:07:19
Bolaji Ayodeji (L1 Reviewer) edited Scale of Solution for Mozilla Common Voice (12047)
2025-02-07 18:06:32
Bolaji Ayodeji (L1 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice (12047)
2025-02-07 18:06:13
Bolaji Ayodeji (L1 Reviewer) edited 9C. Protection from Harassment for Mozilla Common Voice (12047)
2025-02-07 18:05:59
Bolaji Ayodeji (L1 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice (12047)
2025-02-07 18:05:56
Bolaji Ayodeji (L1 Reviewer) edited 9B. Inappropriate & Illegal Content for Mozilla Common Voice (12047)
2025-02-07 18:05:11
Bolaji Ayodeji (L1 Reviewer) edited a note on 9B. Inappropriate & Illegal Content for Mozilla Common Voice (12047)
2025-02-07 18:04:36
Bolaji Ayodeji (L1 Reviewer) edited 9B. Inappropriate & Illegal Content for Mozilla Common Voice (12047)
2025-02-07 18:04:00
Bolaji Ayodeji (L1 Reviewer) edited a note on 9A. Data Privacy & Security for Mozilla Common Voice (12047)
2025-02-07 18:02:58
Bolaji Ayodeji (L1 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice (12047)
2025-02-07 18:02:54
Bolaji Ayodeji (L1 Reviewer) edited 9A. Data Privacy & Security for Mozilla Common Voice (12047)
2025-02-07 18:01:25
Bolaji Ayodeji (L1 Reviewer) passed 8. Standards & Best Practices for Mozilla Common Voice (12047)
2025-02-07 18:01:22
Bolaji Ayodeji (L1 Reviewer) edited 8. Standards & Best Practices for Mozilla Common Voice (12047)
2025-02-07 18:01:13
Bolaji Ayodeji (L1 Reviewer) edited 8. Standards & Best Practices for Mozilla Common Voice (12047)
2025-02-07 18:00:54
Bolaji Ayodeji (L1 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice (12047)
2025-02-07 18:00:29
Bolaji Ayodeji (L1 Reviewer) edited 7. Privacy & Applicable Laws for Mozilla Common Voice (12047)
2025-02-07 18:00:09
Bolaji Ayodeji (L1 Reviewer) passed 6. Mechanism for Extracting Data for Mozilla Common Voice (12047)
2025-02-07 18:00:07
Bolaji Ayodeji (L1 Reviewer) edited 6. Mechanism for Extracting Data for Mozilla Common Voice (12047)
2025-02-07 17:59:37
Bolaji Ayodeji (L1 Reviewer) passed 5. Documentation for Mozilla Common Voice (12047)
2025-02-07 17:59:34
Bolaji Ayodeji (L1 Reviewer) edited 5. Documentation for Mozilla Common Voice (12047)
2025-02-07 17:57:41
Bolaji Ayodeji (L1 Reviewer) passed 4. Platform Independence for Mozilla Common Voice (12047)
2025-02-07 17:57:38
Bolaji Ayodeji (L1 Reviewer) edited a note on General Information for Mozilla Common Voice (12047)
2025-02-07 17:56:56
Bolaji Ayodeji (L1 Reviewer) edited General Information for Mozilla Common Voice (12047)
2025-02-07 17:56:35
Bolaji Ayodeji (L1 Reviewer) edited General Information for Mozilla Common Voice (12047)
2025-02-07 15:00:02
System add new tag Late to Mozilla Common Voice (12047)
2025-02-07 08:15:15
Bolaji Ayodeji (L1 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice (12047)
2025-02-07 08:14:43
Bolaji Ayodeji (L1 Reviewer) edited 3. Clear Ownership for Mozilla Common Voice (12047)
2025-02-07 08:13:42
Bolaji Ayodeji (L1 Reviewer) passed 2. Open Licensing for Mozilla Common Voice (12047)
2025-02-07 08:12:16
Bolaji Ayodeji (L1 Reviewer) edited 2. Open Licensing for Mozilla Common Voice (12047)
2025-02-07 08:11:30
Bolaji Ayodeji (L1 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice (12047)
2025-02-07 08:11:18
Bolaji Ayodeji (L1 Reviewer) edited 1. SDG Relevance for Mozilla Common Voice (12047)
2025-02-07 08:10:50
Bolaji Ayodeji (L1 Reviewer) passed General Information for Mozilla Common Voice (12047)
2025-02-07 06:34:02
Bolaji Ayodeji (L1 Reviewer) edited a note on General Information for Mozilla Common Voice (12047)
2025-02-07 06:32:35
Bolaji Ayodeji (L1 Reviewer) edited General Information for Mozilla Common Voice (12047)
2025-02-07 06:31:00
Bolaji Ayodeji (L1 Reviewer) pulled Mozilla Common Voice dataset (12047) under review
2025-01-28 12:25:02
Common Voice (Applicant) submitted application for Mozilla Common Voice dataset (12047)
2025-01-21 03:46:47
Admin (Admin) modified owner from 92 (EM Lewis-Jong) to 4417 (Common Voice) for Mozilla Common Voice dataset (12047)
2024-11-11 01:30:03
System created a refresher application for Mozilla Common Voice dataset (11192)
2024-11-11 01:30:03
System created an autofill refresher application for Mozilla Common Voice dataset (12047)
2024-01-11 16:47:42
Richard Kagaba (L2 Reviewer) submitted their review of Mozilla Common Voice dataset (1051) and found it to be a DPG
2024-01-11 16:47:41
System moved Mozilla Common Voice dataset (11192) to expired because parent applcation is now DPG.
2024-01-11 16:47:41
System unmarked Mozilla Common Voice dataset (11192) as a nominee
2024-01-11 16:44:15
Richard Kagaba (L2 Reviewer) passed Scale of Solution for Mozilla Common Voice dataset (11192)
2024-01-11 16:44:08
Richard Kagaba (L2 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice dataset (11192)
2024-01-11 16:43:41
Richard Kagaba (L2 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice dataset (11192)
2024-01-11 16:43:37
Richard Kagaba (L2 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice dataset (11192)
2024-01-11 16:43:27
Richard Kagaba (L2 Reviewer) passed 8. Open Standards & Best Practices for Mozilla Common Voice dataset (11192)
2024-01-11 16:43:20
Richard Kagaba (L2 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice dataset (11192)
2024-01-11 16:31:12
Richard Kagaba (L2 Reviewer) passed 6. Non-PII Data Extraction for Mozilla Common Voice dataset (11192)
2024-01-11 16:30:58
Richard Kagaba (L2 Reviewer) passed 5. Documentation for Mozilla Common Voice dataset (11192)
2024-01-11 16:30:29
Richard Kagaba (L2 Reviewer) passed 4. Platform Independence for Mozilla Common Voice dataset (11192)
2024-01-11 16:30:23
Richard Kagaba (L2 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice dataset (11192)
2024-01-11 15:53:48
Richard Kagaba (L2 Reviewer) passed 2. Open Licensing for Mozilla Common Voice dataset (11192)
2024-01-11 15:53:13
Richard Kagaba (L2 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice dataset (11192)
2024-01-11 15:52:42
Richard Kagaba (L2 Reviewer) passed General Information for Mozilla Common Voice dataset (11192)
2024-01-11 09:48:40
Richard Kagaba (L2 Reviewer) pulled Mozilla Common Voice dataset (11192) under review
2024-01-06 17:12:44
L1 Reviewer (L1 Reviewer) submitted their review of Mozilla Common Voice dataset (11192)
2024-01-06 17:12:37
L1 Reviewer (L1 Reviewer) passed Scale of Solution for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:33
L1 Reviewer (L1 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:26
L1 Reviewer (L1 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:23
L1 Reviewer (L1 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:10
L1 Reviewer (L1 Reviewer) passed 8. Open Standards & Best Practices for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:06
L1 Reviewer (L1 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice dataset (11192)
2024-01-06 17:12:00
L1 Reviewer (L1 Reviewer) passed 6. Non-PII Data Extraction for Mozilla Common Voice dataset (11192)
2024-01-06 17:11:53
L1 Reviewer (L1 Reviewer) passed 5. Documentation for Mozilla Common Voice dataset (11192)
2024-01-06 17:11:45
L1 Reviewer (L1 Reviewer) edited 5. Documentation for Mozilla Common Voice dataset (11192)
2024-01-06 17:10:30
L1 Reviewer (L1 Reviewer) passed 4. Platform Independence for Mozilla Common Voice dataset (11192)
2024-01-06 17:10:28
L1 Reviewer (L1 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice dataset (11192)
2024-01-06 17:10:24
L1 Reviewer (L1 Reviewer) passed 2. Open Licensing for Mozilla Common Voice dataset (11192)
2024-01-06 17:10:12
L1 Reviewer (L1 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice dataset (11192)
2024-01-06 15:57:30
L1 Reviewer (L1 Reviewer) passed General Information for Mozilla Common Voice dataset (11192)
2024-01-06 15:57:17
L1 Reviewer (L1 Reviewer) pulled Mozilla Common Voice dataset (11192) under review
2024-01-02 11:58:23
EM Lewis-Jong (Applicant) submitted application for Mozilla Common Voice dataset (11192)
2024-01-02 11:56:52
EM Lewis-Jong (Applicant) created a refresher application for Mozilla Common Voice dataset (10069)
2023-02-27 02:57:36
Ricardo Torres (L2 Reviewer) submitted their review of Mozilla Common Voice dataset (152) and found it to be a DPG
2023-02-27 02:57:35
System unmarked Mozilla Common Voice dataset (10069) as a nominee
2023-02-27 02:57:31
Ricardo Torres (L2 Reviewer) passed Scale of Solution for Mozilla Common Voice dataset (10069)
2023-02-27 02:57:28
Ricardo Torres (L2 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice dataset (10069)
2023-02-27 02:57:09
Ricardo Torres (L2 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice dataset (10069)
2023-02-27 02:57:05
Ricardo Torres (L2 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice dataset (10069)
2023-02-27 02:56:58
Ricardo Torres (L2 Reviewer) passed 8. Open Standards & Best Practices for Mozilla Common Voice dataset (10069)
2023-02-27 02:56:56
Ricardo Torres (L2 Reviewer) edited 8. Open Standards & Best Practices for Mozilla Common Voice dataset (10069)
2023-02-27 02:56:33
Ricardo Torres (L2 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice dataset (10069)
2023-02-27 02:56:06
Ricardo Torres (L2 Reviewer) passed 6. Non-PII Data Extraction for Mozilla Common Voice dataset (10069)
2023-02-27 02:55:58
Ricardo Torres (L2 Reviewer) passed 5. Documentation for Mozilla Common Voice dataset (10069)
2023-02-27 02:55:21
Ricardo Torres (L2 Reviewer) passed 4. Platform Independence for Mozilla Common Voice dataset (10069)
2023-02-27 02:55:17
Ricardo Torres (L2 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice dataset (10069)
2023-02-27 02:54:55
Ricardo Torres (L2 Reviewer) passed 2. Open Licensing for Mozilla Common Voice dataset (10069)
2023-02-27 02:54:31
Ricardo Torres (L2 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice dataset (10069)
2023-02-27 02:54:22
Ricardo Torres (L2 Reviewer) edited 1. SDG Relevance for Mozilla Common Voice dataset (10069)
2023-02-27 02:53:04
Ricardo Torres (L2 Reviewer) passed General Information for Mozilla Common Voice dataset (10069)
2023-02-27 02:52:30
Ricardo Torres (L2 Reviewer) pulled Mozilla Common Voice dataset (10069) under review
2023-02-15 10:32:49
David Njagah (L1 Reviewer) submitted their review of Mozilla Common Voice dataset (10069)
2023-02-15 10:32:44
David Njagah (L1 Reviewer) edited a note on Scale of Solution for Mozilla Common Voice dataset (10069)
2023-02-15 10:32:13
David Njagah (L1 Reviewer) passed Scale of Solution for Mozilla Common Voice dataset (10069)
2023-02-15 10:32:13
David Njagah (L1 Reviewer) passed Scale of Solution for Mozilla Common Voice dataset (10069)
2023-02-15 10:31:31
David Njagah (L1 Reviewer) passed 9C. Protection from Harassment for Mozilla Common Voice dataset (10069)
2023-02-15 10:30:45
David Njagah (L1 Reviewer) passed 9B. Inappropriate & Illegal Content for Mozilla Common Voice dataset (10069)
2023-02-15 10:30:11
David Njagah (L1 Reviewer) passed 9A. Data Privacy & Security for Mozilla Common Voice dataset (10069)
2023-02-15 10:16:05
David Njagah (L1 Reviewer) passed 8. Open Standards & Best Practices for Mozilla Common Voice dataset (10069)
2023-02-15 10:14:39
David Njagah (L1 Reviewer) edited 8. Open Standards & Best Practices for Mozilla Common Voice dataset (10069)
2023-02-15 10:14:38
David Njagah (L1 Reviewer) edited 8. Open Standards & Best Practices for Mozilla Common Voice dataset (10069)
2023-02-15 10:13:59
David Njagah (L1 Reviewer) passed 7. Privacy & Applicable Laws for Mozilla Common Voice dataset (10069)
2023-02-15 10:13:51
David Njagah (L1 Reviewer) edited 7. Privacy & Applicable Laws for Mozilla Common Voice dataset (10069)
2023-02-15 10:13:34
David Njagah (L1 Reviewer) passed 6. Non-PII Data Extraction for Mozilla Common Voice dataset (10069)
2023-02-15 10:13:12
David Njagah (L1 Reviewer) passed 5. Documentation for Mozilla Common Voice dataset (10069)
2023-02-15 10:12:16
David Njagah (L1 Reviewer) passed 4. Platform Independence for Mozilla Common Voice dataset (10069)
2023-02-15 10:12:11
David Njagah (L1 Reviewer) passed 3. Clear Ownership for Mozilla Common Voice dataset (10069)
2023-02-15 10:11:44
David Njagah (L1 Reviewer) passed 2. Open Licensing for Mozilla Common Voice dataset (10069)
2023-02-15 10:10:53
David Njagah (L1 Reviewer) passed 1. SDG Relevance for Mozilla Common Voice dataset (10069)
2023-02-15 10:08:23
David Njagah (L1 Reviewer) passed General Information for Mozilla Common Voice dataset (10069)
2023-02-15 09:51:53
David Njagah (L1 Reviewer) pulled Mozilla Common Voice dataset (10069) under review
2023-02-14 04:33:14
Admin (Admin) over ride decision for Mozilla Common Voice dataset (10069)
2023-02-04 01:30:04
System moved Mozilla Common Voice dataset (10069) to expired.
2022-11-01 07:39:05
Application imported by admin
