Private voice cloning. Your recording never leaves your browser.

Think about what happens in a typical online voice cloner. You record a sample, the site uploads it, a server builds the clone and the server keeps it. You are trusting that company with a recording of your voice.

Clonylab skips the upload. The voice model runs inside your browser, on your graphics card when it passes a quick test and on your processor when it doesn’t. The clone is built there, and it is saved there. The Privacy policy says it in one line: if you clone a voice, the recording and the voice made from it are stored only in your browser, and we never receive them.

Private does not mean we know nothing about you. You have an account, so we keep some things. Here is the full list, in plain words.

• Your account. Your email and a password hash (not your password).
• Your plan. Whether you are on Trial, Pro or Team, from our payment provider.
• Simple usage numbers. For each voice-over: the voice, the language, how many characters, how long the audio is, and whether your graphics card or processor was used. This feeds your Usage page. The text itself is not in it.
• Your device details. When you are signed in: browser and system, processor cores, memory, the graphics-card maker and design (never a serial number), and whether the graphics-card test passed. We use this to find out why something does not work on a device.
• Support chats, if you write to us. Only what you send. Never your scripts, audio or recordings.

A privacy claim is worth more when you can test it. You do not need to be a developer. Your browser can show you what a page sends.

1. 1

   Open your browser’s developer tools

   In Chrome or Edge, press F12, then open the Network tab. Clear the list.

2. 2

   Make a clone or generate speech

   Record a sample, create the voice, or press Generate speech in the Studio. Watch the Network list while it works.

3. 3

   Look at what leaves your browser

   You will see requests for the page’s own files and the voice model files coming in. You should not see your recording or your script going out to Clonylab. If you ever do, please tell us.

The model files are the large downloads on first use. They come down to your browser once, and your browser keeps them.

Pro and Team include an optional connection that lets an AI app you choose, such as Claude or Cursor, send commands to your open Clonylab tab. This one needs a clear word. If you use it, the commands, including any text the AI asks to be spoken, pass through our server to your browser. We do not store them. The audio is still made in your browser. The AI app you connect has its own privacy terms.

If you never switch it on, none of this applies. You can switch the connection off or delete its access at any time.

A few honest limits, so you are not surprised.

• Your own computer. Your clone lives in your browser. Someone with access to your signed-in browser can use it. Lock your computer.
• Clearing your browser data. It removes your cloned voices and history. Keep your original recording.
• What you do with the audio. Once you download or share a voice-over, it is as public as you make it. The Terms ask you not to use a cloned voice to impersonate or deceive anyone.

Privacy is also about the people whose voices get cloned. Before every clone, Clonylab asks you to confirm that the voice is your own, or that you have the speaker’s clear permission. The Terms forbid using a cloned voice to impersonate anyone, to deceive people or to pass generated speech off as a real recording of a real person. Read how the whole flow works on the voice clone online page.

Clonylab keeps your voice in your browser. A few small habits keep it safe there too.

• Use a screen lock. Your clone lives in your signed-in browser.
• Sign out on shared computers. Use the sign-out button, and clear your site data afterwards.
• Keep your original recording safe. Store it where only you can reach it.
• Use a strong, unique password. The account holds your plan and your device details.
• Check what you connect. If you use the AI connection, you choose which AI app can send commands, and you can delete its access.

If you make voice-overs for other people, their scripts may be sensitive. Here is how Clonylab handles that, in a form you can pass on.

For client work, also see text to speech for commercial use.

• We do not receive your recording or your cloned voice.
• We do not store your scripts or your audio.
• We do not use advertising cookies. We use a sign-in cookie and a security cookie, both strictly necessary.
• We do not store the text an AI app asks to be spoken when you use the AI connection.

Read the Privacy policy for the exact wording. If anything here does not match what you see, tell us.

• Make a clone on the voice clone online page.
• Read the policy on the Privacy policy page.
• Ask us on the contact page.

Questions about voice cloning and privacy