Your computer first
Where the hardware allows it, transcription and translation run on your own device. Cloud processing is a choice you can see.
About Kaption AI
Kaption AI builds tools for people who run their work and life on WhatsApp. We started with a browser extension that turns voice notes into text on WhatsApp Web. Today Kaption also comes as a desktop app, a phone app and a connection for AI assistants.
What we make
Browser extension
For WhatsApp Web in Chrome and Edge: voice-note transcripts, summaries, AI replies, translation, reminders, scheduled messages and privacy tools.
Desktop app
Kaption for Mac and Windows: several WhatsApp numbers in one app, call recording with transcripts, App Lock and every extension tool built in.
Kaption Transcriber
An iPhone and Android app that turns voice messages into text.
MCP server
Connects WhatsApp to Claude, ChatGPT, Cursor and other AI assistants, with sign-in you control.
WhatsApp chat widget
A free builder that makes a WhatsApp chat button for any website.
How we work
Off until you turn it on
Features that reach outside WhatsApp, like the AI assistant connection, start switched off.
Claims we can back up
Our pages describe what the shipped app does. If a feature has limits, the page says so.
The company
Kaption AI is published by Kaption AI, LLC, a company in the United States. Our terms are governed by the laws of the State of Texas.
Kaption AI is an independent product. It is not affiliated with, authorized or endorsed by Meta Platforms, Inc. or WhatsApp.