Is MestreZap safe?

Clean risk

MestreZap adds WhatsApp Web tools and sends voice messages to hc-stt.hiperchat.com.br when you press transcribe.

On web.whatsapp.com the extension injects a transcribe button next to voice messages. When the user presses it, the audio is downloaded from WhatsApp, base64-encoded and posted to a speech-to-text service, and the returned text is shown under the message. The audio is only sent after that button press.

sasdacv3.1.7Chrome Web Store
0Risk
Who publishes it

sasdac - 4 other listings from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
sasdac

Same store account

4 other listings published from this account, 43 users between them, none of them carrying a finding.

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed MestreZap contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • hc-stt.hiperchat.com.brwidely used

    MestreZap sends data to hc-stt.hiperchat.com.br. A widely used service: 68 other extensions we have analysed send data here.

Updated 15 October 2026nmeanacecjaeehhnllemepiamnnjjnai