Why transcribe WhatsApp voice messages?
Voice notes are fast to send but slow to skim in busy inboxes. Transcription turns them into searchable text you can quote, forward, copy to CRM, or translate. Support agents, sales reps, journalists, and multilingual teams use voice message transcription daily on WhatsApp Web.
WhatSender Pro runs OpenAI Whisper locally in your Chrome browser — not on OpenAI's cloud API. That means no API key, no per-minute billing, and audio stays on your device during processing.
No Google Translate, OpenAI, or Whisper API keys required. Buy one Chrome extension license (or start the free 24-hour trial) and use every included feature until expiry — translation, recording, transcripts, export, and analytics run inside your browser.
How to transcribe a voice note on WhatsApp Web
- 01
Install WhatSender Pro extension
Add to Chrome and activate your full license (transcription is not in the 24-hour trial).
- 02
First run: download Whisper model
The first transcription downloads the Whisper model (~75 MB) to your browser. Wait for completion — later transcriptions are faster.
- 03
Open a chat with a voice message
On web.whatsapp.com, find a voice note in the thread. The extension adds a transcribe action on supported voice messages.
- 04
Click Transcribe
Wait a few seconds while Whisper processes audio locally. Text appears below or beside the voice note.
- 05
Copy or translate the transcript
Copy text to clipboard, or enable Auto Translate to read the transcript in your language.
- 06
Combine with real-time translate
Use alongside real-time chat translation for a complete multilingual workflow on WhatsApp Web.
Local Whisper vs OpenAI API
| Aspect | WhatSender extension | OpenAI Whisper API |
|---|---|---|
| API key required | No | Yes |
| Per-minute billing | No — license covers use | Yes |
| Audio uploaded to cloud | No — local in Chrome | Yes |
| Works on WhatsApp Web | ✓ | — |
Voice transcription feature guide
Screenshots, settings, and FAQ: WhatsApp voice message transcription extension guide.
Privacy: where your data stays
The Chrome extension is designed for local-first privacy. WhatsApp message content, call recordings, voice-note audio, and exported chat files are processed and stored in your browser on your computer. License activation and trial email verification contact WhatSender servers — but we do not host your WhatsApp conversations or recordings in the cloud.
Translation and Whisper transcription run in your browser session. Analytics (message counts, chat time, call logs) are calculated locally and shown in the extension popup — not synced to a WhatSender dashboard unless you export files yourself.
Frequently asked questions
Do I need an OpenAI API key for Whisper transcription?
No. Whisper runs locally in Chrome through the extension. Your license includes transcription — no OpenAI billing or API setup.
Is my voice note audio uploaded?
Transcription processes audio in your browser session. WhatSender does not store voice note content on its servers.
Which languages does voice transcription support?
Whisper supports dozens of languages. Pair with the extension translator to convert transcripts into your preferred language.
How big is the Whisper download?
Approximately 75 MB on first use. Stored in your browser for faster future transcriptions.
Is transcription in the free trial?
The 24-hour trial covers translation only. Full license unlocks Whisper transcription with the same key after purchase.