Onyx
Onyx, a male American English voice from Kokoro 82M (Apache 2.0). Free on Rewind.ai. No sign up required.
Kokoro American English MaleSelf-hosted
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What You Can Do With Onyx
Text to SpeechPaste text and get an audio file in seconds
AudiobooksRead long-form content aloud from start to finish
VoiceoversAdd spoken narration to video or slide decks
PodcastsRecord scripted podcast segments without a mic
Frequently Asked Questions
Onyx is a free male AI voice powered by Kokoro. It generates natural-sounding American English speech from any text input.
Yes! The Onyx voice is completely free on Rewind.ai. No sign up or credit card required.
Onyx speaks American English. It was trained on native American English speech data for authentic pronunciation.
Yes. The Onyx voice is powered by Kokoro, which is released under an open-source license allowing commercial use.
Onyx uses Kokoro's advanced neural TTS technology to produce highly natural speech with proper intonation and rhythm.
Yes! After generating speech with Onyx, you can download the audio as an MP3 or WAV file.
Onyx generates speech in real-time on our GPU servers. Most text is converted to audio in under 3 seconds.
Kokoro is the open-source TTS engine that powers the Onyx voice. It delivers high-quality speech synthesis.
Onyx suits audiobooks, podcasts, videos, presentations and any content that needs a male American English voice.
Free users get a daily token allowance. Sign up for a free account to get 3x more usage, or upgrade for unlimited.
You can control speed and pitch when using Onyx. Advanced SSML support depends on the Kokoro engine capabilities.
Onyx on Rewind.ai provides comparable quality to ElevenLabs but is completely free. No subscription needed.