Top Text to Speech API alternatives in 2025

Top Text to Speech API Alternatives in 2025

As technology continues to evolve, the demand for high-quality text-to-speech (TTS) solutions is on the rise. In 2025, developers are looking for robust alternatives to traditional TTS APIs that can provide realistic voice synthesis, support multiple languages, and integrate seamlessly into applications. This blog post explores some of the best alternatives to the Text to Speech API, detailing their features, capabilities, pricing, pros and cons, ideal use cases, and how they differ from the Text to Speech API.

1. English Text to Speech API

The English Text to Speech API is designed to convert written English text into spoken words. It utilizes advanced natural language processing algorithms to generate high-quality audio output that sounds natural and engaging.

Key Features and Capabilities

The English Text to Speech API offers several key features:

• Convert: This feature allows users to convert text into audio using realistic voices. The API returns a URL where the generated MP3 file can be accessed and downloaded.
• Gender Voice Options: Users can choose between male, female, or neutral voices to suit their application's needs.
• Supported Languages: The API supports various English dialects, including en_US (USA), en_GB (UK), and en_IN (India).

Example Response:

{
    "message": "Conversion successful",
    "audio_src": "https://example.com/audio.mp3",
    "error": null,
    "total_chars": 100,
    "remaining_chars": 900
}

Pros and Cons

Pros include high-quality voice output and flexibility in voice selection. However, it may lack support for non-English languages compared to other APIs.

Ideal Use Cases

This API is ideal for applications requiring English voice synthesis, such as e-learning platforms, accessibility tools, and virtual assistants.

How It Differs from Text to Speech API

While both APIs provide TTS capabilities, the English Text to Speech API focuses exclusively on English, offering more tailored features for English language applications.

2. British Text to Speech API

The British Text to Speech API specializes in converting written text into spoken words with a natural British accent. This API is particularly useful for applications targeting UK audiences.

Key Features and Capabilities

Key features include:

• Convert: Similar to the English TTS API, this feature converts text to audio and provides a downloadable MP3 link.
• Gender Voice Options: Users can select male, female, or neutral voices.
• Supported Languages: Primarily supports British English (en_GB).

Example Response:

{
    "message": "Conversion successful",
    "audio_src": "https://example.com/audio_british.mp3",
    "error": null,
    "total_chars": 120,
    "remaining_chars": 880
}

Pros and Cons

Pros include a natural-sounding British accent and high-quality audio output. However, it may not support other dialects or languages.

Ideal Use Cases

This API is perfect for applications in the UK, such as educational tools, audiobooks, and customer service applications.

How It Differs from Text to Speech API

The British Text to Speech API is tailored for British English, providing a unique accent and cultural relevance that the standard Text to Speech API may not offer.

3. Hindi Text to Speech API

The Hindi Text to Speech API allows developers to convert written Hindi text into spoken words, making it an essential tool for applications targeting Hindi-speaking audiences.

Key Features and Capabilities

Key features include:

• Convert: Converts Hindi text to audio, providing a downloadable MP3 link.
• Gender Voice Options: Users can choose male, female, or neutral voices.
• Supported Languages: Primarily supports Hindi (hi_IN).

Example Response:

{
    "message": "Conversion successful",
    "audio_src": "https://example.com/audio_hindi.mp3",
    "error": null,
    "total_chars": 150,
    "remaining_chars": 850
}

Pros and Cons

Pros include high-quality Hindi voice synthesis and cultural relevance. However, it may not support other languages or dialects.

Ideal Use Cases

This API is ideal for applications in India, such as educational tools, accessibility features, and customer service applications.

How It Differs from Text to Speech API

The Hindi Text to Speech API focuses on Hindi language support, providing features and capabilities tailored to Hindi-speaking users.

4. Speech to Text API - English

The Speech to Text API - English is designed to transcribe spoken English audio into text format. This API is essential for applications that require voice-to-text functionality.

Key Features and Capabilities

Key features include:

• Submit Files for Transcript: Users can upload audio files for transcription, receiving a clean text output.

Example Response:

{
    "audio_file": "https://example.com/audio.mp3",
    "output": {
        "text": "This is a sample transcription."
    }
}

Pros and Cons

Pros include high accuracy in transcription and support for various audio formats. However, it may have limitations in handling non-English audio.

Ideal Use Cases

{
    "message": "Conversion successful",
    "audio_src": "https://example.com/audio_portuguese.mp3",
    "error": null,
    "total_chars": 130,
    "remaining_chars": 870
}

{
    "word": "example",
    "pronunciation": {
        "all": "ɪɡˈzæmpəl"
    }
}