Alloy
Grade C Kokoro🇺🇸 American English · ♀ Female Voice
About the Alloy Voice
Alloy is a female American English AI voice rated C on the OfflineTTS quality scale. Speech synthesis runs in your browser with no signup or per-character fees.
Voice character: Neutral
Best for: General voice-over
How to use the Alloy voice:
- Open the [TTS tool](/app/?voice=af_alloy)
- "Alloy" will be automatically selected in the voice picker
- Type or paste your text (up to 50,000 characters per batch)
- Click generate — speech is created locally on your device
- Download as studio-quality WAV or compact MP3
Quality rating explained: C indicates this voice provides clear, intelligible output suitable for drafts and rapid prototyping.
The Alloy voice uses Kokoro's browser phonemizer and local WebGPU or WebAssembly synthesis. After the initial model download, English generation works completely offline.
Explore other American English voices or browse the [complete voice library](/voice/) for your project.
Best For: General voice-over
Alloy is a reliable female American English voice suitable for general voice-over, narration, and content creation.
Generate speech with Alloy now →Related Voices
Alloy Voice — Frequently Asked Questions
Is the Alloy voice free to use?
Yes. The Alloy voice is completely free. It runs in your browser with no API key, no signup, and no subscription limits. Generate as much speech as you need at zero cost.
Does the Alloy voice work offline?
Yes. After the initial model download is cached in your browser, the Alloy voice can generate speech completely offline without internet connectivity.
What quality rating does the Alloy voice have?
The Alloy voice is rated C on our quality scale. This is a solid, clear voice that produces intelligible and natural speech for content creation.
Can I export WAV and MP3 with Alloy?
Yes. After generating speech with Alloy, you can download uncompressed 24kHz WAV files for studio editing or compressed MP3 files for sharing and publishing.
Can I use the Alloy voice for commercial projects?
Yes. The models used on OfflineTTS support commercial content creation. You can use generated audio in YouTube videos, podcasts, audiobooks, and commercial voice-overs.
Ready to use Alloy?
Experience natural American English speech synthesis in your browser with zero setup or character fees.
Open Alloy Voice in TTS Studio →