Lewis
Grade D+ Kokoro🇬🇧 British English · ♂ Male Voice
About the Lewis Voice
Lewis is a male British English AI voice rated D+ on the OfflineTTS quality scale. Speech synthesis runs in your browser with no signup or per-character fees.
Best for: General purpose
How to use the Lewis voice:
- Open the [TTS tool](/app/?voice=bm_lewis)
- "Lewis" 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: D+ indicates this voice provides clear, intelligible output suitable for drafts and rapid prototyping.
The Lewis voice uses Kokoro's browser phonemizer and local WebGPU or WebAssembly synthesis. After the initial model download, English generation works completely offline.
Explore other British English voices or browse the [complete voice library](/voice/) for your project.
Best For: General purpose
Lewis is a reliable male British English voice suitable for general voice-over, narration, and content creation.
Generate speech with Lewis now →Related Voices
Lewis Voice — Frequently Asked Questions
Is the Lewis voice free to use?
Yes. The Lewis 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 Lewis voice work offline?
Yes. After the initial model download is cached in your browser, the Lewis voice can generate speech completely offline without internet connectivity.
What quality rating does the Lewis voice have?
The Lewis voice is rated D+ 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 Lewis?
Yes. After generating speech with Lewis, you can download uncompressed 24kHz WAV files for studio editing or compressed MP3 files for sharing and publishing.
Can I use the Lewis 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 Lewis?
Experience natural British English speech synthesis in your browser with zero setup or character fees.
Open Lewis Voice in TTS Studio →