KaptionAI

KaptionAI efficiently transcribes WhatsApp voice messages, giving users an easy way to review audio content in text format.

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KaptionAI helps users stay on top of WhatsApp voice messages by transcribing them into text. Its AI-based transcription service is fast and reliable, with multi-language support. The extension also offers summarization and reply suggestions, making it an essential productivity tool for those who prefer written communication.

AI Voice

KaptionAI transcribes WhatsApp Web voice notes to text, adds live translation, summaries and AI reply suggestions.

for: WhatsApp users who want to read, translate or summarize voice messages quickly.
pricing: freemium

works withWhatsApp WebChromeMicrosoft EdgeChromium-based browsers

Key features

6 features of KaptionAI

Automatic transcription — Voice notes are converted to text instantly within WhatsApp Web.
Live translation — Translate incoming messages in real-time across 90+ languages.
AI summaries & reply suggestions — Get concise summaries of long voice notes and AI-generated reply drafts.
Scheduled messages & reminders — Compose messages now and send later, with optional follow-up reminders.
Privacy mode & screen lock — Blur chat content and protect WhatsApp Web with a PIN or password.
Export & search — Search transcripts, export contacts, groups or chats as CSV/JSON.

Use cases

Read a 3-minute voice note while driving by viewing the transcript.
Translate a foreign-language voice message instantly during a chat.
Create a summary of a long group voice discussion to catch up quickly.
Schedule a follow-up message after a meeting without leaving WhatsApp.

KaptionAI vs alternatives

all alternatives →

	KaptionAI	Voice Calling SDK by Dyte	Dify.AI	Langfuse	Icongen.io
Best for	In-browser voice note transcription for WhatsApp Web	Embedding voice calling features	Building AI-native apps	LLM monitoring	Icon creation
Pricing	Freemium	Subscription	Free	Subscription	One time fee
DevHunt upvotes	0	44	30	89	114
Launched	Jan 2024	May 2024	Jan 2023	Jan 2023	Jan 2023

KaptionAI vs Voice Calling SDK by Dyte: Provides voice call SDKs, not transcription or chat integration
KaptionAI vs Dify.AI: Open-source LLMOps platform, unrelated to WhatsApp transcription
KaptionAI vs Langfuse: Observability for LLM apps, no WhatsApp functionality
KaptionAI vs Icongen.io: Generates icons, not related to voice or messaging

KaptionAI FAQ

Is KaptionAI free?+

Yes, the extension is free to install and use for basic transcription; optional Basic and Pro plans add unlimited features.

Is it safe? What data does the extension access?+

The extension runs only in your browser; audio is sent for processing and discarded, and no message content is stored on Kaption’s servers.

Does it work with WhatsApp Business?+

It works with any account signed into web.whatsapp.com, but it does not integrate with the official WhatsApp Business API.

Does it work on Microsoft Edge?+

Yes, KaptionAI is available in the Edge Add-ons store and works on any Chromium-based browser.

Which languages does transcription support?+

Dozens of languages including English, Spanish, Portuguese, French, German, Italian, Turkish, Chinese, Japanese and many more; live translation covers over 90 languages.

Summarized by DevHunt from kaptionai.com · Sep 28, 2026. Details may change; check the official site.