On iPhone
Press and hold the voice message in the chat and tap Forward. Tap the share icon, then pick KolWrite to import the recording for transcription.
WhatsApp voice messages
Read the voice message instead of listening to it.
Share a WhatsApp voice message to KolWrite from your iPhone or Android, and it arrives ready to transcribe.
Live demo
Runs in your browser.
That gives you written text you can read during a meeting, search later, copy into a reply, or translate into another language.
- Sharedirectly from WhatsApp to KolWrite
- .opusreads WhatsApp's native voice format directly
- 100+languages, including Hebrew and Arabic
- Translateread messages in another language
How to send a voice message to KolWrite
WhatsApp keeps voice messages inside the chat, so you use the share menu to send one to another app.
On Android
Press and hold the voice message to select it, then tap the share icon at the top of the screen and choose KolWrite. The file opens in KolWrite the same way.
On a computer
Save the voice message as a file, or export the chat with media from your phone. Then upload the audio file to KolWrite in your browser or the desktop app.
When it helps to have a voice message in writing
Listening to a two-minute voice note always takes two minutes. Reading the text takes seconds, and you can search for it later.
When you can't play audio
Read the message right away when you are in a meeting, on a train, or up late at night, instead of waiting until you can listen.
Long voice notes
It is easier to act on instructions, addresses, numbers, and names when you can see and copy them.
Another language
Transcribe a message from a relative or client in their own language, then translate it into a language you read.
From voice message to text
Share the voice message
Share the voice message from your WhatsApp chat and select KolWrite.
Transcribe
Choose the spoken language or let KolWrite detect it automatically, then start the transcription.
Read and correct
Read through the text. If a name or number looks off, tap that line to hear the audio again.
Copy, translate, or save
Copy the text into a reply or note, translate it, or leave it in KolWrite so you can search for it later.
For developers and AI agents
You can also run everything KolWrite does with a recording through our API. Send the address of an audio or video file from your own code or an AI coding agent, and you'll get back the transcript with word timings, speaker labels, and an SRT file if you request one.
Word timings and speakers
The JSON output gives you the start and end time for every segment, plus individual word timings on models that support alignment. Turn on speaker separation to include a speaker label on each segment.
SRT and translation
Pass output_format as srt if you want subtitles directly from the API. If you are using the Oracle models, you can also set translate_to to get the text back in another language.
Built for agents
The API console publishes plain-text instructions for an agent to read before writing code. This includes agent-instructions.md, along with llms.txt, which links to the full reference.
Questions
How do I transcribe a WhatsApp voice message?
Share the voice message from your WhatsApp chat to KolWrite on iPhone or Android and transcribe it there. On iPhone, press and hold the message, choose Forward, and tap the share icon. On Android, select the message and tap share.
Doesn't WhatsApp already transcribe voice messages?
WhatsApp offers built-in transcripts on some devices and in certain languages. KolWrite is useful when you need support for Hebrew, Arabic, or long recordings, or when you want speaker labels, translation, export options, and a way to search across your messages.
What file format are WhatsApp voice messages?
WhatsApp uses Opus audio, usually saved with an .opus or .ogg extension. KolWrite takes these files directly from WhatsApp without needing conversion.
Can it transcribe voice messages in Hebrew or Arabic?
Yes. KolWrite transcribes over 100 languages, including Hebrew and Arabic, with proper right-to-left text alignment.
Can I translate a voice message into another language?
Yes. First transcribe the message in the original spoken language, then translate the text into any language KolWrite supports.
Are the voice messages I share kept private?
The message goes only to your KolWrite account, where your recordings and transcripts are encrypted. We never use your content to train AI models. Please ask the sender for permission before transcribing someone else's message.
Try it with one voice message.
Find the longest voice note in your chats, share it to KolWrite, and read it in a few seconds.