WhatsApp · OPUS · MP3 · M4A · 99% accuracy
Transcribe WhatsApp Voice Messages to Text
Convert WhatsApp voice messages to text in seconds. Supports OPUS, MP3, and M4A. Free for short audios — no installation needed.
🎙️ Transcreva gratuitamente
Faça upload do seu áudio ou vídeo e receba o texto em segundos.
30 minutes free per month. No credit card required.
Formatos suportados: .opus, .mp3, .m4a, .wav, .ogg (up to 5 GB)
Como funciona
Export the audio from WhatsApp
On your phone, tap and hold the voice message → "Forward" or "Share" → save the OPUS file. On iPhone, use iCloud or AirDrop. On Android, navigate to WhatsApp/Media/WhatsApp Voice Notes in your file manager.
Upload to VoxScriber
Drag the OPUS, MP3, or M4A file onto the upload area, or click "Select file". Files up to 5 GB are accepted. No account needed for short audio.
Receive your transcript in seconds
Our AI converts the audio to text with 99% accuracy. Copy the text, download in TXT, DOCX, or SRT, or create an account to save your history.
Why WhatsApp voice messages are hard to manage
WhatsApp is one of the world's most widely used messaging apps, and voice messages have become a primary communication format — especially in professional contexts. But audio is not searchable, not easily archivable, and cannot be read in silent environments.
At work, this means losing important information buried in a 4-minute voice note. In legal, medical, or academic contexts, audio needs to become text documents. And in everyday life, there's simply no time to listen to every voice message that arrives.
Automatic transcription solves all of this in seconds. And VoxScriber is the most accurate tool available for English and Portuguese audio.
What is the OPUS format? (WhatsApp audio explained)
When you record a voice message in WhatsApp, it is automatically saved in the .opus format — an open audio codec developed by the Xiph.Org Foundation, optimized for human voice. OPUS offers excellent voice quality with small file sizes, ideal for mobile data usage.
The problem with OPUS is that few apps and services support it directly. Most tools require you to convert to MP3 first — an unnecessary extra step.
VoxScriber accepts OPUS natively. Export the file from your phone and upload directly, no conversion needed.
Note: newer versions of WhatsApp on iOS may save audio as .m4a instead of .opus, depending on backup settings. VoxScriber accepts both formats.
Step-by-step: export and transcribe WhatsApp audio
On iPhone (iOS)
- Open the conversation and tap and hold the voice message
- In the menu, tap "Forward" or the share icon (box with arrow)
- Choose "Save to Files" → select iCloud Drive or local storage
- Open the Files app, find the .opus (or .m4a) file
- AirDrop to your Mac, send by email, or access via iCloud in your computer browser
- Upload the file to VoxScriber and wait for transcription
On Android
- Audio is automatically saved in:
Internal Storage → WhatsApp → Media → WhatsApp Voice Notes - Use a file manager (like Files by Google) to find and copy the .opus files
- Alternatively: tap and hold the message → share → Google Drive, Dropbox, or email to yourself
- Access the file from your computer or directly from your phone
- Upload to VoxScriber
From your computer (WhatsApp Web or Desktop)
- Open WhatsApp Web or the Desktop app
- On the voice message, click the three-dot menu (⋮)
- Select "Download" — the .opus file goes to your Downloads folder
- Upload directly to VoxScriber — with the file already on your computer, just drag and drop
VoxScriber vs. alternatives for transcribing WhatsApp
| Feature | VoxScriber | WhatsApp native transcription | Chrome extensions |
|---|---|---|---|
| Native OPUS support | ✓ | ✓ (limited) | ✓ |
| Accuracy | 99% | ~70% | Varies |
| Long audio (>10 min) | ✓ (up to 10h) | ✗ | ✗ |
| Speaker identification | ✓ | ✗ | ✗ |
| Export DOCX, SRT, TXT | ✓ (6 formats) | ✗ | Partial |
| No installation required | ✓ | ✓ | ✗ (extension) |
| Free tier | ✓ 30 min/month | ✓ (limited) | Some |
Use cases: when is transcribing WhatsApp audio worth it?
Corporate teams
Meeting notes sent as audio, manager instructions, client feedback. Turn into text to archive and share with the team.
Legal professionals
Client accounts, case guidance, informal testimony. Transcribe and document as the basis for briefs and reports.
Journalists and researchers
Sources who prefer sending voice messages. Transcribe immediately and quote accurately, without memory errors.
Healthcare professionals
Patient reports, symptom history, colleague instructions. Document securely and in compliance with privacy regulations.
Students
Teacher explanations, study groups, thesis guidance sent via audio. Turn into searchable study material.
Entrepreneurs
Client orders, partner feedback, own ideas recorded by voice. Never lose an important detail again.
Perguntas frequentes
Ready to transcribe your WhatsApp voice messages?
Try free — no credit card →30 minutes free per month. No credit card required.