Voice Cloning Software That Runs in Your Browser
Most voice cloning software asks you to install a desktop app, rent a GPU, or wait hours for training. Musely does it in a browser tab: upload a consented sample, confirm permission, name the voice, and generate speech in 39 languages. The voice stays in your library and works across every Musely text-to-speech tool.
Add a voice sample
MP3, M4A or WAV · 10 seconds to 5 minutes · up to 20MB
Upload audio
MP3, M4A or WAV · 10 seconds to 5 minutes · up to 20MB
Best results: one person speaking clearly and naturally — no background music or noise.
Advanced (Optional)
Name your voice
Your cloned voice
Your cloned voice will preview here
Musely Voice Cloning Software is a hosted tool for building a reusable synthetic voice from a short recording. You upload 10 seconds to 5 minutes of clean speech (MP3, M4A or WAV, up to 20MB), confirm you have the speaker's consent, and the voice becomes available to type into. There is nothing to download and no model to train yourself — the cloning runs server-side and the result is ready in about 30 seconds.
What the software actually supports
Input
Output
⚡Platform
Plan and limits
From sample to usable voice in three steps
Upload a consented sample
Drop in 10 seconds to 5 minutes of clean speech as MP3, M4A or WAV, up to 20MB. One speaker, minimal background noise, no music underneath. Longer is not better — a clean 30 seconds beats a noisy five minutes.
Confirm consent and name it
Tick the consent confirmation to say you have the speaker's permission, then give the voice a name you will still recognise in three months. Names that match well-known public figures are refused.
Type and generate
Paste a script and generate audio in any of 39 languages. The cloned voice is saved to your library and can be picked from any Musely text-to-speech tool without re-uploading.
Who reaches for cloning software
Re-record a lesson without re-recording
I clone my own voice once and fix script errors by retyping the line instead of setting the mic back up.
Keep one narrator across a campaign
The same narrator voice carries every cutdown, so the client never hears a mismatch between versions.
Ship the same voice in more languages
One cloned voice reads the script in 39 languages, so our regional videos still sound like us.
Patch a line without a pickup session
A mispronounced name used to mean booking the host again. Now I retype the sentence.
Bank a voice before it changes
Clients facing voice loss record a sample early so they keep something that sounds like them.
Prototype dialogue before casting
I block out every NPC line in a placeholder voice, then hire actors once the script is locked.
How the software compares
| Feature | Musely | ElevenLabs | Resemble AI | PlayHT |
|---|---|---|---|---|
| Runs in the browser with no install | ✓ Yes, no install and no local GPU | ✓ Yes | ✓ Yes | ✓ Yes |
| Minimum sample length stated by the vendor | ✓ 10 seconds | ⚠ Varies by tier | ⚠ Varies by tier | ⚠ Varies by tier |
| Accepted upload formats | ✓ MP3, M4A, WAV | ✓ Common audio formats | ✓ Common audio formats | ✓ Common audio formats |
| Cloned voice reusable across the vendor's other tools on one account | ✓ Yes, every Musely TTS tool | ⚠ Within that vendor's own products | ⚠ Within that vendor's own products | ⚠ Within that vendor's own products |
| Output languages from one cloned voice | ✓ 39 | ⚠ Check vendor | ⚠ Check vendor | ⚠ Check vendor |
| Active cloned voices stated up front | ✓ 5 on Creator, 20 on Business | ⚠ Varies by tier | ⚠ Varies by tier | ⚠ Varies by tier |
| Cloning included in a flat monthly plan | ✓ Yes, Creator $19.9/mo | ⚠ Tiered plans | ⚠ Usage-based billing | ⚠ Tiered plans |
Questions about the software
No. Cloning and generation both run server-side, so everything happens in a browser tab. There is no desktop app, no plugin and no local GPU requirement — it works the same on a laptop, a ChromeOS device or a tablet. The trade-off is that it will not work offline.
Between 10 seconds and 5 minutes of clean speech, as MP3, M4A or WAV, up to 20MB. One speaker, as little background noise as possible, and no music underneath. A clean 30-second sample generally produces a better clone than a noisy five-minute one.
Creating a voice costs 100 credits, charged once when the voice is created. Cloning is available on the Creator plan ($19.9/mo, up to 5 active voices) and the Business plan ($99.9/mo, up to 20). The Free and Professional plans include text-to-speech with the system voice library but do not include cloning.
Yes. One cloned voice can read a script in any of 39 languages. The accent carries over from the original sample, so a voice cloned from English speech will sound like an English speaker reading Spanish rather than a native Spanish speaker.
It depends on whose voice it is and where you are. You need the speaker's permission, and Musely asks you to confirm you have it before the clone is created. Cloning someone without consent — a colleague, a celebrity, a public figure — can breach publicity, biometric and fraud laws depending on your jurisdiction. Get consent in writing if the voice is not yours.
There is a consent confirmation at upload and a name-based deny-list that refuses clones named after high-risk public figures. Be aware of the limit: the deny-list only reacts to the name you type, so it will not catch someone who uploads a public figure's voice and calls it something ordinary. It is a deterrent, not voiceprint verification.