How to transcribe WhatsApp voice notes to text
WhatsApp voice notes are convenient to send but a pain to receive: you can't search inside them, re-read them in a meeting, or copy a single line. Turning them into text fixes all of that.
WhatsApp saves its voice notes as .opus, a compressed audio format many tools won't accept. Dolcenota does: upload the .opus file exactly as it comes out of WhatsApp and get the transcript —with AI, in English or Spanish— in minutes.
Transcribe a WhatsApp voice note in 3 steps
- 1
Export the voice note from WhatsApp
Open the chat, press and hold the voice note, and tap Share or Forward. Save it to your files or email it to yourself. It downloads as an .opus (or .ogg) file — no conversion needed.
- 2
Upload it to Dolcenota
Open Dolcenota, tap “Upload file,” and pick the voice note. On mobile you can also use WhatsApp's share sheet to send it straight to the app. We accept .opus, .ogg, .m4a, mp3 and more.
- 3
Get the text, summary and Q&A
In minutes you'll have the full transcript, plus an automatic summary of the key points and the ability to ask the audio questions. Export to TXT or PDF in one tap.
Why WhatsApp uses .opus files — and why it matters
Opus is an audio codec built for voice: tiny files that still sound good, which is why WhatsApp uses it for voice notes. The catch is that many transcription tools only take mp3 or wav and reject .opus, forcing you to convert it first.
Dolcenota processes .opus directly, with no extra steps and no quality loss. Upload the file just as you received it.
Works with long notes and multiple speakers
- Forward several voice notes and transcribe them one by one.
- If more than one person speaks, Dolcenota identifies who said what and you can rename each speaker.
- The summary pulls out decisions and action items — ideal for work voice-note threads.
Frequently asked questions
Can I transcribe WhatsApp voice notes for free?
Yes. Dolcenota's free plan includes transcription minutes every month, enough to get started with your voice notes. Upgrade when you need more.
Do I have to convert the .opus file to mp3 first?
No. Dolcenota accepts WhatsApp's .opus (and .ogg) directly. Upload the file as it comes out of the chat.
Which languages does it support?
English and Spanish, even when both are mixed in the same note. The transcription detects the language automatically.
Is it private?
Your content is stored encrypted and is never used to train AI models.
Can I do it from my phone?
Yes. With the app you can share the voice note straight from WhatsApp using the share sheet — no manual download needed.
Transcribe your first voice note today
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