Transform Text to Speech & Speech to Text

Powerful AI-powered voice services with simple API integration. Create natural-sounding voices and accurate transcriptions in seconds.

Used by developers with

Python Python
JavaScript JavaScript
TypeScript TypeScript
React React
Node.js Node.js
Swift Swift
Kotlin Kotlin
Django Django
Flutter Flutter
Go Go
Rust Rust
Vue.js Vue.js
Docker Docker
Kubernetes Kubernetes
AWS AWS
Google Cloud GCP
Azure Azure
PostgreSQL PostgreSQL
MongoDB MongoDB
Redis Redis
Firebase Firebase
Git Git
GitHub GitHub
GraphQL GraphQL
Python Python
JavaScript JavaScript
TypeScript TypeScript
React React
Node.js Node.js
Swift Swift
Kotlin Kotlin
Django Django
Flutter Flutter
Go Go
Rust Rust
Vue.js Vue.js
Docker Docker
Kubernetes Kubernetes
AWS AWS
Google Cloud GCP
Azure Azure
PostgreSQL PostgreSQL
MongoDB MongoDB
Redis Redis
Firebase Firebase
Git Git
GitHub GitHub
GraphQL GraphQL

Powerful Features

Everything you need for voice processing and transcription

Text-to-Speech (TTS)

Convert any text into natural-sounding speech using advanced ONNX models. Choose from multiple languages and voices, adjust speed, and generate high-quality MP3 audio files instantly.

  • Multiple languages
  • Voice selection
  • Speed control
  • MP3 output

Speech-to-Text (STT)

Transcribe audio files to text with high accuracy using Whisper AI. Supports multiple audio formats (MP3, WAV, M4A, FLAC) and automatic language detection. Process your audio locally for privacy.

  • Auto language detection
  • Multiple formats
  • High accuracy
  • Privacy-first

REST API

Simple and powerful REST API for seamless integration into your applications. Generate API keys, authenticate requests, and access all features programmatically. Use the same endpoints from Cursor via our MCP server (webvoice-mcp).

  • RESTful design
  • API key auth
  • MCP for Cursor & agents
  • Full documentation

Flexible Credit System

Pay-as-you-go credit system with transparent pricing. Get free monthly credits, purchase credits as needed, or subscribe for recurring credits. Credits are consumed based on audio duration processed.

  • Free monthly credits
  • Pay-as-you-go
  • Subscription plans
  • Transparent pricing

AI Translation

Translate transcribed text using advanced AI models. Perfect for multilingual workflows. Integrate translation seamlessly after transcription for complete language processing.

  • Multi-language
  • AI-powered
  • Fast processing
  • High quality

History & Analytics

Track all your TTS generations and transcriptions. View detailed history, download previously generated files, monitor credit usage, and analyze your usage patterns with comprehensive analytics.

  • Complete history
  • File downloads
  • Usage analytics
  • Credit tracking

AI image generation

Create images from text prompts using MiniMax image models (e.g. image-01), with aspect ratios for social or slides. Use the REST API or admin tools; credits apply per successful generation.

  • MiniMax image models
  • POST /api/v1/image/
  • Configurable aspect ratio
  • Credit-based access

Multi-model AI chat

Pick different LLMs per thread — fast Groq hosts, Moonshot Kimi, MiniMax, and other curated providers. Compare answers, tune costs with per-request credits, and combine chat with voice workflows.

  • Multiple providers
  • Per-model credits
  • Tones & agents (optional)
  • Parallel conversations

App & Tools

Embed WebVoice into your product or website: full REST API, MCP server for Cursor, same credits as the web app. Documentation and SDKs included.

  • REST API
  • MCP (webvoice-mcp)
  • Same credits as web app
  • API keys dashboard
Learn more

Built for Developers

Simple API, powerful results

Integrate WebVoice into your applications with just a few lines of code. Our REST API is designed to be intuitive and well-documented. Prefer Cursor or another MCP client? Install webvoice-mcp and expose chat, TTS, STT, translation and images as agent tools — same API key, same credits.

REST API

fetch('/api/v1/tts/', {
method: 'POST',
headers: { 'Authorization': 'Bearer YOUR_API_KEY'
},
body: JSON.stringify({ text: 'Hello world' })
})

MCP — Cursor

{
"mcpServers": {
"webvoice": {
"command": "webvoice-mcp",
"env": { "WEBVOICE_API_KEY": "wv_…" }
}
}
}
MCP setup guide
Developer coding
Production-ready code examples

In-depth guides

Registration, voice, images, multi-model chat, privacy, Android — plus embedding WebVoice via API.

Account & sign-up

How to register, accept terms and AI policy, daily free credits and API keys.

Read the guide

TTS: languages, voices & MP3

Many languages and voices, speed control, high-quality MP3 and API integration.

Read the guide

Chat & privacy

Safeguard-oriented models, retention-aware design, downloadable audio.

Read the guide

AI image generation

MiniMax models, API endpoint, aspect ratios and credits.

Read the guide

Multi-model chat

Groq, Moonshot, MiniMax and more — pick the best model per task.

Read the guide

Android app

Beta on Dropbox — or use the web app on mobile today.

Inside the product

The same web app you use after sign-in: Functions for TTS, STT and translation, and Voice memos with search and categories.

WebVoice Functions: Text to Speech, Speech to Text, Translations
Functions — generate speech, transcribe audio, translate text.
WebVoice Voice memos: list, search, categories and recording
Voice memos — search, filters, and quick actions.

Typical workflow (no client names)

  1. Design and QA use the web app for TTS/STT and chat with the same models available in production.
  2. Engineers call the documented REST API with account keys; browser and server share one balance.
  3. Finance tracks spend via credits per feature (TTS minutes, chat turns, images) instead of opaque bundles.

We do not list named customers here without a written agreement. For a one-pager tailored to your sector, contact sales after sign-up.

Integration overview
99.9%

Uptime SLA

50M+

API Calls

10K+

Active Developers

4.9/5

User Rating

What developers say

Marco B.
Marco B.

CTO, TechStartup

"Integrated WebVoice in our app in under an hour. The TTS quality is exceptional and the API is a joy to use."

Sarah K.
Sarah K.

Lead Developer

"We replaced three different vendors with WebVoice. Same quality, simpler billing, better docs. Highly recommend."

Luca R.
Luca R.

Freelance Developer

"The free tier is generous and the pay-as-you-go model is perfect for side projects. Great support too."

Trusted by teams at

AWS
Google Cloud
Docker
Kubernetes
Slack
Spotify

And thousands more innovative teams worldwide

100+
Voices Available
50+
Languages Supported
< 1s
Average Response
99.9%
Uptime SLA

Simple Pricing

Choose the plan that fits your needs

Free

0€ /month
  • 10 free credits every day
  • Text-to-Speech
  • Speech-to-Text
  • Voice memos — free text notes (up to 10000 characters each)
  • API access
  • History tracking
Get Started
Popular

Credit Packages

From 4.99€
  • 100 credits - 4.99€
  • 250 credits - 8.99€
  • 600 credits - 19.99€
  • Buy as needed
  • No subscription
Buy Credits

Premium Subscription

9.99€ /month
  • 1500 credits/month
  • Recurring credits
  • Best value
  • Cancel anytime
  • All features included
Subscribe Now

Ready to Transform Your Audio Experience?

Join thousands of developers using WebVoice for their voice processing needs. Start free today.