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
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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
ElevenLabs is the category leader in AI voice cloning — its quality is outstanding and it supports many languages and advanced features. But voice cloning on ElevenLabs requires a paid account and uploads your voice to their servers. Speechify, Murf, and Resemble.ai follow the same model: server-side processing, account required, usage caps on free tiers. SoundTools runs the F5-TTS model entirely in your browser. Your voice recording, your text, and your output never leave your device. The tradeoffs are real: a one-time 380 MB model download, desktop-only generation (Chrome, Edge, or Firefox — not Safari), and slower generation speed than server APIs. For anyone working with sensitive recordings, cloning their own voice for personal projects, or simply not wanting to create another account, the browser-based approach is the right call.
| Feature | SoundTools | ElevenLabs | Speechify | Resemble.ai |
|---|---|---|---|---|
| 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 | ✅ Very Good |
| Reference audio needed | 5–15 seconds | 30+ seconds | 20+ seconds | 10–60 seconds |
| Download audio | ✅ WAV + MP3 | ✅ | ⚠️ Premium | ⚠️ Paid plans |
| No watermark | ✅ | ✅ | ❌ | ⚠️ Paid plans |
| Desktop & mobile | ⚠️ Desktop only | ✅ | ✅ | ✅ |
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.
Is this an ElevenLabs voice cloning alternative?
Yes, for free unlimited use with full privacy. ElevenLabs is the best voice cloning platform available — the quality of its cloned voices is genuinely exceptional, it supports many languages, and it offers advanced features like voice design and dubbing. But voice cloning on ElevenLabs requires a paid plan, an account, and uploading your voice recordings to their servers. SoundTools Voice Cloning is free with no limits, no account, and no upload — the F5-TTS model runs in your browser. The honest quality gap: ElevenLabs produces more expressive, natural-sounding clones, especially for long-form content. SoundTools produces good-quality clones that work well for most use cases. If quality is your top priority and privacy isn't a concern, ElevenLabs is worth the cost. If you need free, private, unlimited voice cloning, SoundTools is the only browser-based option at this quality level.
Is this a Speechify voice cloning alternative?
Yes. Speechify is a text-to-speech and voice cloning platform primarily designed for reading documents aloud — it clones your voice and uses it to narrate any text you paste or upload. It requires an account, uploads voice data to Speechify's servers, and gates cloning behind a paid subscription. SoundTools Voice Cloning does the same core thing — provide a voice sample, type text, get audio in that voice — for free, with no account, and entirely in your browser. Generation is slower than a cloud API (30–90 seconds per sentence on desktop), and it requires Chrome, Edge, or Firefox. For content creators, audiobook authors, and anyone who wants to generate speech in their own voice privately and for free, SoundTools is the capable alternative.