Our free AI voice cloning tool reproduces any voice from just 10 seconds of audio. Powered by F5-TTS (open source, Apache 2.0) running entirely in your browser via ONNX Runtime Web — your voice recording and text are never uploaded to any server. Record via microphone or upload an audio file, type the text you want spoken, and generate speech in the cloned voice. Download as WAV or MP3.
🎧 Reference Audio
What Is AI Voice Cloning?
AI voice cloning uses machine learning to reproduce a specific person's voice from a short recording. Unlike traditional text-to-speech which uses preset voices, voice cloning captures the unique characteristics of a real voice — pitch, timbre, accent, rhythm, and speaking style — and generates new speech that sounds like that person. SoundTools uses F5-TTS, a state-of-the-art diffusion transformer model that produces remarkably faithful voice clones from just 5–15 seconds of reference audio. The entire process runs in your browser via ONNX Runtime Web, so your voice data is never uploaded to any server.
How to Clone a Voice Online — Step by Step
- Record or Upload a Voice Sample: Click "Record" and read the provided script aloud (about 15 seconds). Or upload a WAV, MP3, or M4A file containing 5–15 seconds of clear speech. Record in a quiet environment for best results. The AI automatically transcribes the reference audio — edit the transcription if it's incorrect.
- Enter Your Target Text: Type or paste the text you want the cloned voice to say. Adjust the speaking speed slider if desired. There is no character limit.
- Clone & Generate: Click the button. The first time, two AI models download (~380 MB total) — this is a one-time download, cached for future visits. Generation takes roughly 30–90 seconds on desktop. Download as WAV or MP3.
Voice Cloning Use Cases
Content Creation — Voiceovers in Your Own Voice
Record yourself once, then generate unlimited voiceovers by typing scripts. Perfect for YouTube, TikTok, Instagram Reels, and podcasts. No need to re-record each time — just type and your AI voice does the rest.
Podcasting — Fix Lines Without Re-Recording
Made a mistake? Need to add a segment? Clone your voice and generate corrected audio. It matches your tone and blends naturally with existing recordings.
Accessibility — Personalized TTS Voice
Create a text-to-speech voice that sounds like you or a family member. People who may lose their voice due to medical conditions can preserve it digitally. Completely private — nothing uploads.
Audiobooks and Long-Form Narration
Self-publishing authors can generate audiobook narrations in a consistent voice. Type or paste chapters and generate narration section by section.
How SoundTools Compares to Other Voice Cloning Tools
| Feature | SoundTools | ElevenLabs | Speechify | Others |
|---|---|---|---|---|
| Free voice cloning | ✅ Unlimited | ❌ Paid only | ⚠️ Limited | ⚠️ Limited |
| No account required | ✅ | ❌ | ❌ | ❌ |
| Privacy (no upload) | ✅ Browser-only | ❌ Server | ❌ Server | ❌ Server |
| Clone quality | ✅ Good | ✅ Excellent | ✅ Very Good | ✅ Good |
| Reference audio needed | 5–15s | 30+s | 20+s | 10–60s |
| Download audio | ✅ WAV+MP3 | ✅ | ⚠️ Premium | Varies |
| No watermark | ✅ | ✅ | ❌ | Varies |
Every major voice cloning tool requires an account and uploads your voice to their servers. SoundTools is different: F5-TTS runs entirely in your browser. The tradeoff is a one-time 380 MB download and slower generation. After the first download, models are cached and load instantly.
Frequently Asked Questions
Is this voice cloning tool really free with no limits?
Yes. No usage limits, no character caps, no account, no watermarks. The AI models run entirely in your browser.
Does this upload my voice to a server?
No. AI models download to your browser (~1.3 GB, cached after first visit). All processing happens locally. Your voice recording and text never leave your browser.
How much audio do I need to clone a voice?
5–15 seconds of clear speech. 10 seconds is ideal. Record in a quiet environment. A script is provided for best results.
How long does voice generation take?
On a modern desktop, 30–90 seconds for 10 seconds of output. The AI runs on your CPU via WebAssembly. Mobile devices are significantly slower.
Does this work on iPhone and mobile?
Voice recording works on all devices. Speech generation requires a desktop browser — Chrome, Edge, or Firefox. Safari (desktop and iOS) is not supported for generation because its WebAssembly engine is too slow for the AI model. You can record your voice in Safari, then switch to Chrome to generate.
What audio formats can I download?
WAV (lossless) and MP3 (192 kbps). Both are watermark-free.
Can I clone someone else's voice?
Technically yes, but only clone voices with explicit permission. Unauthorized cloning may violate privacy laws.
What's the difference between this and SoundTools Text to Speech?
Our Text to Speech tool uses 20+ preset AI voices. Voice Cloning lets you use YOUR voice or any voice from a short audio sample.