Callstrike
Free Tool · AI Voice Cloning Test

Free AI Voice Cloning Test

Can AI steal your voice in 5 seconds? Say a few words and hear a vishing call in your own voice.

Live mic only, no uploads
Nothing is downloadable
Deleted when the session ends

Works on your computer or your phone. No account, no install, nothing stored.

How the AI voice cloning test works

Four steps, about a minute end to end. The whole thing happens inside one browser session.

You start the conversation

Press start and allow the microphone. The AI answers in a stock voice and asks you an ordinary question.

It collects 5 seconds of you

A meter fills while you talk. Only your own speech counts, and one answer usually fills it.

It clones your voice

The model is built in a few seconds from that short sample, and it lives only inside this session.

It calls you back as you

The AI chats with you in your own voice for half a minute, then switches back to its own voice and explains how you would have caught it.

How voice cloning powers voice phishing (vishing)

Voice cloning stopped being a research demo some time ago. A current model needs around 5 seconds of clear speech to produce a voice that holds up over a phone line, where the audio is already compressed and nobody is listening for artefacts.

Attackers do not need to record you. Five seconds of you is usually public already: a conference talk, a podcast appearance, a webinar, a product video, a social clip, or the greeting on your voicemail.

Then they call an employee, normally in finance or on the IT helpdesk, and ask for a payment, a password reset, or an MFA code. The voice is doing the authentication, and it is the one credential nobody was asked to protect.

Where the 5 seconds comes from5 seconds is all a clone needs
Zoom or Teams recording
1 hour
YouTube talk or webinar
45 min
Podcast episode
30 min
SoundCloud audio
10 min
WhatsApp voice note
2 min
Social video clip
60 sec
Voicemail greeting
Enough on its own

Lengths are typical, on a log scale so the short clips stay readable. Anything past the dashed line is already more audio than a clone needs.

How to spot a vishing call

You will not hear the clone. Three habits catch the call anyway, and none of them depend on noticing anything about the audio.

Call back on a known number

Hang up and dial the number you already hold for that person. Never the number you were just given, and never one read out to you on the call.

Agree a code phrase

A short phrase shared with your finance team, and separately with your family, ends a cloned voice call in one question. Rotate it the way you rotate a password.

Treat urgency as the signal

Pressure plus secrecy is the attack pattern itself. A genuine request survives a five minute delay and a check on a second channel.

Try our other free tools

Voice Phishing Simulator

Hear your own voice turned into a boss, a colleague, or an unknown caller, live in the browser.

Voice Phishing Accent Simulator

Hear the same scam script in a different accent, and see how much accent alone changes who your employees trust.

Frequently asked questions

Yes. There is no account, no card, and nothing to install. The test runs in your browser on a live microphone and ends when the demonstration finishes or when you end it.

Train your employees against vishing

One test shows you what a clone sounds like. Callstrike runs controlled AI voice phishing simulations across your whole workforce, then trains the employees who fall for them. No GPUs, no installs, no per seat pricing.