Collect Voice Dataat Scale

The open-source platform for teams who want to collect speech data across languages, validate contributions from the community, and export production-ready voice datasets.

Free & open-sourceAny language supportedCommunity validated
Features

Everything You Need to Build Voice Datasets

Record, validate, and export high-quality voice data across any language with a platform built for researchers and teams.

  • Record Voice

    Speak sentences aloud and contribute recordings to language datasets in your native tongue.

  • Listen & Validate

    Review community recordings and confirm transcription accuracy to maintain dataset quality.

  • Write Sentences

    Submit new sentences for contributors to record, expanding the prompt library for any language.

  • Campaign Management

    Create and manage targeted voice data collection campaigns with custom goals and language settings.

  • Progress Analytics

    Track recordings, validation rates, and contributor statistics with real-time dashboard insights.

  • Multi-language Support

    Collect voice data across dozens of languages and dialects from communities around the world.

How It Works

How OpenVoice Works

Three simple steps to build a production-ready, community-validated voice dataset in any language.

Step 01

Create a Campaign

Define your target language, sentence prompts, and validation criteria to launch a voice data collection campaign.

Step 02

Community Records

Contributors from around the world read and record sentences in their natural voice directly in the browser.

Step 03

Validate & Export

Review submissions for quality, validate transcriptions, and export clean labeled datasets ready for training.

Reviews

What Our Community Says

Researchers, engineers, and linguists around the world trust OpenVoice to build high-quality voice datasets.

OpenVoice transformed how we collect speech data. The validation workflow is seamless and the dataset quality is exceptional.

A

Asel Nurlanova

LinguaTech \ NLP Researcher

We collected 10,000+ validated recordings in just two weeks. The campaign management tools are incredibly well thought out.

D

Dmitri Volkov

SpeechAI \ ML Engineer

Finally a platform that makes minority language preservation accessible. Our Amazigh dataset is growing faster than ever.

F

Fatima Al-Hassan

GlobalVoice \ Linguist

The export format is clean and perfectly structured for fine-tuning. Saved our team months of manual annotation work.

C

Carlos Mendes

VoiceCorp \ Data Scientist

Intuitive recording interface meant contributors needed zero training. Our volunteer engagement rate is through the roof.

Y

Yuki Tanaka

AudioMind \ Speech Engineer

The community-driven validation approach gives us far better quality than any automated solution we tried before.

P

Priya Sharma

DeepLang \ AI Researcher

We built our entire Arabic dialect dataset on OpenVoice. The multi-language support and campaign tools are world-class.

O

Omar Khalil

ArabicAI \ CTO

Managing 500+ contributors across 12 languages used to be chaos. OpenVoice makes it genuinely simple.

E

Elena Kowalski

EuroSpeech \ Project Manager

Essential for low-resource language documentation. The analytics dashboard helps us stay on track with our grant goals.

J

James Okafor

AfriVoice \ Research Lead

We integrated OpenVoice into our app in a day. The API is clean and the documentation is excellent.

L

Lena Fischer

VoxLabs \ Frontend Developer

OpenVoice transformed how we collect speech data. The validation workflow is seamless and the dataset quality is exceptional.

A

Asel Nurlanova

LinguaTech \ NLP Researcher

We collected 10,000+ validated recordings in just two weeks. The campaign management tools are incredibly well thought out.

D

Dmitri Volkov

SpeechAI \ ML Engineer

Finally a platform that makes minority language preservation accessible. Our Amazigh dataset is growing faster than ever.

F

Fatima Al-Hassan

GlobalVoice \ Linguist

The export format is clean and perfectly structured for fine-tuning. Saved our team months of manual annotation work.

C

Carlos Mendes

VoiceCorp \ Data Scientist

Intuitive recording interface meant contributors needed zero training. Our volunteer engagement rate is through the roof.

Y

Yuki Tanaka

AudioMind \ Speech Engineer

The community-driven validation approach gives us far better quality than any automated solution we tried before.

P

Priya Sharma

DeepLang \ AI Researcher

We built our entire Arabic dialect dataset on OpenVoice. The multi-language support and campaign tools are world-class.

O

Omar Khalil

ArabicAI \ CTO

Managing 500+ contributors across 12 languages used to be chaos. OpenVoice makes it genuinely simple.

E

Elena Kowalski

EuroSpeech \ Project Manager

Essential for low-resource language documentation. The analytics dashboard helps us stay on track with our grant goals.

J

James Okafor

AfriVoice \ Research Lead

We integrated OpenVoice into our app in a day. The API is clean and the documentation is excellent.

L

Lena Fischer

VoxLabs \ Frontend Developer

The contributor experience is polished. Our community loves how easy it is to record and our dataset grew 3x faster.

A

Arjun Patel

VoiceFirst \ Product Manager

Perfect for dialect research. We captured regional pronunciation variations we could never find in commercial datasets.

S

Sofia Andersson

NordLang \ Linguist

The validation workflow with double-blind review gives us publication-quality data. Highly recommend for academic use.

M

Min-Jun Lee

KoreaAI \ ML Engineer

We documented three endangered languages using OpenVoice. This tool is doing genuinely important work.

A

Amara Diallo

AfricaLang \ Researcher

Export quality is fantastic. We plugged the dataset directly into our training pipeline with zero preprocessing needed.

V

Viktor Novak

CzechSpeech \ Data Lead

Arabic morphology is hard. OpenVoice's flexible prompt system handled our complex sentence structures perfectly.

R

Rania Aziz

MidEastTech \ NLP Engineer

We went from zero to a production-ready voice dataset in three months. OpenVoice was the backbone of our launch.

T

Tom Bradley

VoiceStart \ Startup Founder

The platform treats minority languages with respect. Our Māori community trust it and that matters more than anything.

K

Kiri Waititi

MaoriDigital \ Cultural Researcher

Clean UI, reliable recording, excellent validation tools. Everything you need to build a serious voice dataset.

I

Ingrid Holm

ScandiAI \ Data Scientist

Tonal language support is rock solid. The recording quality controls ensure our Mandarin dataset is pitch-perfect.

C

Chen Wei

MandarinAI \ Research Scientist

The contributor experience is polished. Our community loves how easy it is to record and our dataset grew 3x faster.

A

Arjun Patel

VoiceFirst \ Product Manager

Perfect for dialect research. We captured regional pronunciation variations we could never find in commercial datasets.

S

Sofia Andersson

NordLang \ Linguist

The validation workflow with double-blind review gives us publication-quality data. Highly recommend for academic use.

M

Min-Jun Lee

KoreaAI \ ML Engineer

We documented three endangered languages using OpenVoice. This tool is doing genuinely important work.

A

Amara Diallo

AfricaLang \ Researcher

Export quality is fantastic. We plugged the dataset directly into our training pipeline with zero preprocessing needed.

V

Viktor Novak

CzechSpeech \ Data Lead

Arabic morphology is hard. OpenVoice's flexible prompt system handled our complex sentence structures perfectly.

R

Rania Aziz

MidEastTech \ NLP Engineer

We went from zero to a production-ready voice dataset in three months. OpenVoice was the backbone of our launch.

T

Tom Bradley

VoiceStart \ Startup Founder

The platform treats minority languages with respect. Our Māori community trust it and that matters more than anything.

K

Kiri Waititi

MaoriDigital \ Cultural Researcher

Clean UI, reliable recording, excellent validation tools. Everything you need to build a serious voice dataset.

I

Ingrid Holm

ScandiAI \ Data Scientist

Tonal language support is rock solid. The recording quality controls ensure our Mandarin dataset is pitch-perfect.

C

Chen Wei

MandarinAI \ Research Scientist

FAQ

Frequently Asked Questions

Everything you need to know about collecting, validating, and exporting voice datasets with OpenVoice.

What is OpenVoice, and who is it for?

OpenVoice is an open-source platform for collecting, validating, and exporting voice datasets. It is built for NLP researchers, speech AI teams, linguists, and community organizations who need high-quality labeled audio data across any language.

How do I start collecting voice recordings?

What languages does OpenVoice support?

How is recording quality validated?

Can I export my dataset for training?

Is OpenVoice free to use?

How do I manage a large contributor community?

Can contributors record on mobile devices?

What happens to recordings that fail validation?

How do I write good sentence prompts?