Free TTS API for Developers

Free Text to Speech API

Build voice features fast with a simple REST endpoint. This free TTS API converts text to natural speech in 75+ languages with 1,200+ voices - no credit card, no hidden limits. Get an API key, make one POST request, and download the MP3.

1,200+
Neural voices
75+
Languages
Free
No credit card required

Quick API Example

curl -X POST https://eidosspeech.xyz/api/v1/tts \
  -H "X-API-Key: esk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Hello from eidosSpeech",
    "voice": "en-US-JennyNeural",
    "format": "mp3"
  }' --output audio.mp3

Need more endpoints? See the full API documentation.

Why developers choose this free TTS API

  • - Simple REST API and JSON payloads
  • - Fast MP3 response suitable for production
  • - Web UI and API sharing same voice quality
  • - Built-in rate limit headers for predictable usage
  • - Ready for subtitle, translate, and batch workflows

Free plan limits

  • - 30 requests/day for registered users
  • - 1,000 characters per API request
  • - 2,000 characters in web app
  • - No credit card, no trial expiration

Frequently Asked Questions

Is this really a free text to speech API?

Yes. You can register and start using the free tier without entering payment details.

Can I use this API for YouTube or social content?

Yes, common creator use cases are supported. Please review voice usage terms based on your compliance requirements.

Does it support Indonesian and English?

Yes. Indonesian and English are supported along with many other languages and voice variants.

Long-Tail Guides

Free TTS API Indonesia
Bahasa Indonesia use cases and sample request.
TTS API for YouTube
Voiceover workflow for creators and channels.
TTS API Python
Python requests example and production tips.
Free AI Voice Generator
1,200+ AI voices, no sign-up - try it in your browser.
Best Free TTS APIs (2026)
Honest comparison of free tiers and real limits.
Start Free API Access

Also useful: API tutorial