Heart
female voice · A · Kokoro
warm · natural
Offline Text to Speech for Windows
Free offline AI text to speech for Windows 10 and 11. Run WebGPU and WASM neural voice synthesis in Chrome and Edge with zero cloud API costs.
Try it now — no signup or per-character charge
Browser audio synthesis; text handling and network needs depend on the selected engine and language.
Available English Voices
Compare 28 Kokoro voices + 9 Kyutai/Pocket for english with a fixed sample. Voice type, grade, and traits are catalog cues rather than a quality guarantee—use the same part of your real script before choosing one.
Kyutai voices run on Pocket TTS only (voice-cloning via hf://kyutai/tts-voices/…), not Kokoro.
Kokoro TTS — 28 voices
| Voice | Type | Catalog cues | Preview |
|---|---|---|---|
| female · A | warm · natural | ||
| female · A- | expressive | ||
| female · B- | professional | ||
| female · C | neutral | ||
| female · C+ | melodic | ||
| female · D | Compare with your script | ||
| female · C+ | clear | ||
| female · C | modern | ||
| female · D | Compare with your script | ||
| female · C+ | warm | ||
| female · C- | bright | ||
| male · F+ | Compare with your script | ||
| male · D | resonant | ||
| male · D | Compare with your script | ||
| male · C+ | deep | ||
| male · D | Compare with your script | ||
| male · C+ | professional | ||
| male · D | Compare with your script | ||
| male · C+ | playful | ||
| male · D- | Compare with your script | ||
| female · B- | professional | ||
| female · D | Compare with your script | ||
| female · C | Compare with your script | ||
| female · D | Compare with your script | ||
| male · D | Compare with your script | ||
| male · C | Compare with your script | ||
| male · C | Compare with your script | ||
| male · D+ | Compare with your script |
Bella
female voice · A- · Kokoro
expressive
Nicole
female voice · B- · Kokoro
professional
Alloy
female voice · C · Kokoro
neutral
Aoede
female voice · C+ · Kokoro
melodic
Jessica
female voice · D · Kokoro
Compare this voice with your own script
Kore
female voice · C+ · Kokoro
clear
Nova
female voice · C · Kokoro
modern
River
female voice · D · Kokoro
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Sarah
female voice · C+ · Kokoro
warm
Sky
female voice · C- · Kokoro
bright
Adam
male voice · F+ · Kokoro
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Echo
male voice · D · Kokoro
resonant
Eric
male voice · D · Kokoro
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Fenrir
male voice · C+ · Kokoro
deep
Liam
male voice · D · Kokoro
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Michael
male voice · C+ · Kokoro
professional
Onyx
male voice · D · Kokoro
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Puck
male voice · C+ · Kokoro
playful
Santa
male voice · D- · Kokoro
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Emma
female voice · B- · Kokoro
professional
Alice
female voice · D · Kokoro
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Isabella
female voice · C · Kokoro
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Lily
female voice · D · Kokoro
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Daniel
male voice · D · Kokoro
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Fable
male voice · C · Kokoro
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George
male voice · C · Kokoro
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Lewis
male voice · D+ · Kokoro
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Kyutai / Pocket TTS — 9 voices (Pocket only)
| Voice | Type | Preview |
|---|---|---|
| male · B+ · calm · steady | ||
| male · B · youthful · energetic | ||
| female · B · clear · professional | ||
| female · B+ · casual · character | ||
| female · B · gentle · narrative | ||
| male · B · audiobook · warm | ||
| male · B · narrator · classic | ||
| male · B · classic · steady | ||
| female · B · british · deep |
calm · steady
youthful · energetic
clear · professional
casual · character
gentle · narrative
audiobook · warm
narrator · classic
classic · steady
british · deep
Enhanced wav via ai-coustics where available. NC datasets (expresso/ears) excluded. Use Pocket TTS to generate.
Experience fast, private, and unlimited AI speech synthesis on Windows 10 and Windows 11. OfflineTTS runs neural text-to-speech models entirely in your web browser, taking advantage of WebGPU acceleration on NVIDIA, AMD, and Intel GPUs.
Key benefits for Windows users:
- GPU acceleration: utilizes Direct3D 12 and Vulkan via WebGPU in Google Chrome and Microsoft Edge for rapid voice generation
- Lightweight CPU fallback: runs seamlessly on laptops and desktops using multi-threaded WebAssembly
- Zero software installation: no Python, CUDA drivers, or command-line wrappers needed — just open the browser and synthesize
- Complete privacy: sensitive documents, client reports, and creative manuscripts never leave your PC
- Flexible export: download 24kHz studio-quality WAV or lightweight MP3 files compatible with Premiere Pro, Audacity, and CapCut
Recommended Windows configuration:
- Browser: Microsoft Edge or Google Chrome with hardware acceleration enabled for WebGPU support
- Storage: approximately 300MB of browser cache for initial model download; subsequent runs require zero internet connection
Accelerated Neural Speech Synthesis on Windows 10 and 11
On modern Windows PCs, OfflineTTS takes full advantage of WebGPU acceleration via Direct3D 12 in Microsoft Edge and Google Chrome. Neural inference runs directly on NVIDIA, AMD, or Intel GPUs, delivering sub-second voice generation without cloud latency.
For older hardware or portable laptops, a lightweight WebAssembly CPU pipeline ensures broad compatibility across all Windows devices without requiring CUDA toolkit installations or administrative privileges.
Production Guidelines for Windows Video and Audio Creators
Exported audio files in WAV or MP3 format integrate smoothly into Windows production tools including Premiere Pro, Audacity, CapCut PC, and OBS Studio. Use the built-in subtitle timing feature to export synchronized SRT captions alongside your audio.
Because generation happens entirely on-device, proprietary business scripts and unreleased creator videos remain fully protected against cloud data retention or third-party training scraping.
Why Use Our English Text to Speech
🪟
Windows 10 & 11 Optimized
Designed for modern Windows PCs with full support for Microsoft Edge and Google Chrome WebGPU pipelines.
⚡
NVIDIA / AMD / Intel Acceleration
Takes advantage of dedicated and integrated graphics cards for sub-second neural speech rendering.
🔒
Local Data Security
Text processing and voice synthesis remain on your PC. Compliant with strict enterprise data confidentiality.
🎵
WAV & MP3 Export
Save generated speech as WAV or MP3 files for easy import into Audacity, Premiere Pro, or CapCut PC.
Popular Use Cases
🎬 YouTube & Content Creation
Generate professional voice-overs for Windows video editors without subscription paywalls or watermarks.
🎮 Game Development & Prototyping
Create placeholder and production character dialogue for Unity and Unreal Engine projects on Windows.
💼 Corporate & Enterprise Training
Produce training modules and employee onboarding audio without exposing internal company data.
📚 Document Reading & Proofing
Listen to Word documents, PDF reports, and technical manuals read aloud with natural neural voices.
How It Works
1
Paste Text
Enter your english text (up to 50,000 chars)
2
Choose Voice
Pick from english voices
3
Generate
AI creates speech on your device
4
Download
Save as WAV or MP3
English Text to Speech — FAQ
Is English text to speech free?
Yes. OfflineTTS does not charge per character and requires no signup or API key. Audio synthesis runs in your browser with the engine you select.
Does English text to speech work offline?
Offline behavior depends on the selected engine and language. Supertonic, Piper, Kitten, Pocket TTS, and English Kokoro can synthesize locally after their model files download. Non-English Kokoro uses the OfflineTTS phonemization service before audio is generated on your device.
Is my English text data private?
Audio synthesis runs locally in your browser. Fully local-capable engine and language combinations keep the input on your device after model download. Non-English Kokoro sends plain text to the OfflineTTS phonemization service and receives pronunciation data before local synthesis.
Start Generating English Speech Now
No signup, no per-character fee, and browser-based audio synthesis.
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