Voice note received
Speak aloud
ืžื” ืฉืœื•ืžืš?
AI reply ready
Basic & Pro โ€” cloud credits, optional BYOK on Pro

Write better
WhatsApp Web replies

Powered by Google Gemini 2.5 Flash. Generate responses, improve drafts, translate, hear messages aloud, and on Pro turn voice into text โ€” right inside WhatsApp Web.

Add to Chrome See how it works โ†“
A Kaza-Web product

Built for the latest Chrome extension generation

WhatsApp Web
Gemini 2.5 Flash
Firebase Cloud Functions
Google Sign-In + MV3

A complete AI layer for WhatsApp Web

The extension now combines cloud AI, local advanced mode, inline controls, translation, speech, voice input, and clearer setup guidance.

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Cloud AI Mode

Sign in with Google, use monthly cloud credits, and see your plan and remaining credits in the popup.

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Advanced API Key Mode

Prefer direct Gemini access? Save your own Google AI Studio API key locally on your device.

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Inline AI Reply Button

Generate a suggested reply inside WhatsApp, review it in a preview window, then copy or insert it into the compose box.

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Smarter Draft Improvement

If you have already typed, the main AI action improves your draft. If the box is empty, it writes a full reply from chat context.

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Translate In Place

Translate from the popup preview or WhatsApp message menus. Show results inline under messages or in a popover with copy and dismiss controls.

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Speak Messages Aloud

Use the added Speak action from a message menu to hear a message with your browser's text-to-speech support.

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Voice To Text

Choose normal WhatsApp recording or voice-to-text, preview the transcript, and insert the written message before sending.

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Language, Tone, And Persona

Auto-match the conversation or choose a fixed response and translation language, six tone presets, and an optional custom writing persona.

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Clearer, More Resilient Support

Better messages for sign-in, credits, Firebase, API keys, sessions, and Gemini failures, plus multiple WhatsApp DOM strategies.

Start simple, upgrade when you need more control

Basic covers everyday AI help in WhatsApp Web. Pro adds your own Gemini key, deeper personalization, and premium voice tools.

First month free
Basic plan

Basic

$5
$15 /Monthly
30 30 Day Free Trial Included
  • โœ“๐Ÿค– AI reply suggestions
  • โœ“โœ๏ธ Improve your drafts
  • โœ“๐ŸŒ Translate messages
  • โœ“๐Ÿ”Š Speak messages aloud
  • โœ“๐ŸŽญ Writing personas
Get Started

Start with cloud credits or your own key

Use the simple Google sign-in path, or switch to advanced mode if you want Gemini requests to use your own API key directly.

1

Install and open the popup

Add the extension to Chrome, then open the popup from the toolbar to choose how AI requests should run.

2

Choose cloud or advanced mode

Sign in with Google to use monthly cloud credits, or save your own Gemini API key locally in advanced mode.

3

Open a WhatsApp Web chat

Go to web.whatsapp.com, select a chat, and refresh context from the popup when needed.

4

Reply, translate, speak, or dictate

Use the popup or inline WhatsApp controls to generate replies, improve drafts, translate messages, speak text aloud, or insert voice-to-text transcripts.

WA AI Response Helper
Cloud mode
Can you send me the updated quote before Friday?
Working on it now.
Thanks. Please keep it concise.
Friendly
Professional
Casual
Formal
Concise
Translate
Speak
Voice to text
Absolutely. I am updating the quote now and will send a concise version before Friday.

Match the chat, your voice, and the language

Set response language to Auto so replies match the conversation, or choose a fixed language. Add a separate translation language, tone preset, and optional persona description.

Persona Example

"Write as a project manager. Keep replies brief, action-oriented, and warm. Avoid corporate jargon and always include a clear next step."

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Professional

Clear, polished, business-ready

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Casual

Relaxed, natural, everyday

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Friendly

Warm, approachable, upbeat

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Formal

Proper, structured, respectful

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Empathetic

Caring, understanding, supportive

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Concise

Short, direct, no fluff

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Message Actions

Auto โ†’ English
ยฟPuedes enviarme el informe antes del viernes?
Translation

Can you send me the report before Friday?

Translate, listen, and dictate without leaving the chat

Message menus and the popup give you translation, Speak, AI replies, and voice-to-text where the conversation already happens.

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Message menu controls

Use Translate or Speak from WhatsApp message menus. Translations can appear inline under the message or in a popover.

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Voice-to-text before sending

Tap the WhatsApp voice-message button, choose Voice to text, review the transcript, and insert it into the compose box.

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Language defaults

Set response language to Auto or choose a fixed language, then set a separate default language for translations.

You choose how AI requests are handled

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Only runs when you trigger it

The extension reads the currently open WhatsApp conversation only when you use AI features or refresh context.

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Cloud mode uses Firebase

Message text needed for the request is sent to this extension's Firebase Cloud Functions, which call Gemini and enforce account credits.

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Advanced mode is direct

With your own API key, message text is sent directly from your browser to Google's Generative Language API.

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Local settings stay local

Your API key, persona, language choices, and recent extension state are stored in Chrome extension storage.

AI Request Paths
You WhatsApp Web
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Extension Current Chat
โ†“ Only when you trigger reply, improve, translate, speak, or refresh context
Cloud mode Firebase โ†’ Gemini
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Advanced mode Browser โ†’ Gemini
โ†“ You review, copy, insert, or dismiss the result
๐Ÿšซ  The extension does not send WhatsApp messages automatically
Cloud mode uses Google sign-in for account access, credits, and subscription status. Advanced mode uses your saved Gemini API key.

Bring AI into your WhatsApp workflow

Install the extension, sign in with Google for cloud credits, or switch to advanced mode with your own Gemini API key.

Requires WhatsApp Web, a selected chat, and either Google sign-in with available cloud credits or a Gemini API key from Google AI Studio.

WhatsApp Webโ€™s interface changes often. Replies and translations depend on Gemini availability, your credits, quota, and API access. Speak and voice-to-text need browser support and permissions. Voice-to-text, BYOK, and encrypted key backup to your account are Pro features.

Manage plans, subscriptions, billing, and support in Kaza-Web Hub.