Best Async Alternatives in 2026

20 platforms from text-to-speech software ranked against Async on the same published basis.

  1. 1Async vs Google Cloud Text-to-Speech
  2. 2Async vs Typecast
  3. 3Async vs Altered Studio
  4. 5Async vs Cartesia Sonic
  5. 6Async vs FineVoice AI Voice Changer
  6. 7Async vs Fish Audio
  7. 8Async vs FreeTTS
  8. 9Async vs Hume Octave
  9. 10Async vs KreaWave
  10. 11Async vs Telnyx Text-to-Speech API
  11. 12Async vs TTS.ai Audio Enhancer
  12. 13Async vs Unmixr Dubbing
  13. 14Async vs Voice.ai
  14. 15Async vs Voicemaker
  15. 16Async vs VoiceStudio
  16. 17Async vs Amazon Polly
  17. 18Async vs Audexum Text to Speech
  18. 19Async vs BreezeBlue Voice TTS
  19. 20Async vs CastReader
  20. 21Async vs CosyVoice

Async alternatives compared

#PlatformScoreFree planFromRuns on
1Google Cloud Text-to-Speech7.4Free plan$16/moAPI, Web
2Typecast7.4Free plan$5/moAndroid, API, iOS, Web
3Altered Studio7.3Free plan$30/moAPI, Mac, Web, Windows
5Cartesia Sonic7.3Free plan$5/moAPI, Web
6FineVoice AI Voice Changer7.3Free plan$0.50/moAPI, Mac, Web, Windows
7Fish Audio7.3Free plan$11/moAPI, Linux, Mac, self-hosted, Web, Windows
8FreeTTS7.3Free plan$19/moAPI, Web
9Hume Octave7.3Free plan$3/moAPI, Web
10KreaWave7.3Free plan€1/moAPI, Web
11Telnyx Text-to-Speech API7.3Free plan$500/moAPI, Web
12TTS.ai Audio Enhancer7.3Free plan$5/moAPI, Web
13Unmixr Dubbing7.3Free plan$9/moAPI, Web
14Voice.ai7.3Free plan$5/moAndroid, API, iOS, Mac, Web, Windows
15Voicemaker7.3Free plan$2.08/moAPI, Web
16VoiceStudio7.3Free plan$8.25/moAPI, Linux, Mac, self-hosted, Web, Windows
17Amazon Polly7.2Free plan$4/moAPI, Web
18Audexum Text to Speech7.2Free plan€29/moAndroid, API, Web, Windows
19BreezeBlue Voice TTS7.2Free plan$9/moAPI, Web
20CastReader7.2Free plan$3/moAndroid, API, iOS, Web
21CosyVoice7.2Free planFreeAPI, Linux, self-hosted
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Questions about Async alternatives

What is the best alternative to Async?

Google Cloud Text-to-Speech, number 1 in text-to-speech software with a score of 7.4 out of 10. The others here: Typecast, Altered Studio, Cartesia Sonic and 16 more.

What is the best free alternative to Async?

Google Cloud Text-to-Speech is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.