¿Cómo estás? 😊
✦ Reply generated
מה שלומך?
Translate → English
Powered by Gemini 2.5 Flash

WhatsApp replies,
upgraded with AI

Draft smarter messages, translate any language, and match any tone — right inside WhatsApp Web. Your API key, your data, your control.

Add to Chrome — Free See how it works ↓
A Kaza-web product

Built on & works with

WhatsApp Web
Google Gemini API
Manifest V3
TypeScript + React

Everything you need to reply smarter

From quick suggestions to multilingual translation, all without leaving WhatsApp Web.

🧠

AI Reply Suggestions

Reads the last 10 messages, detects who said what, and drafts a contextually appropriate reply — or improves your draft if you've started one.

🌍

Inline Translation

Translate incoming messages right from the ⋯ menu — result appears under the bubble. Also translate from the popup preview and copy with one click.

🎭

6 Tone Personas

Professional, Casual, Friendly, Formal, Empathetic, or Concise. Switch in seconds to match the conversation's energy.

✍️

Draft Improvement

Already typed something? The main button shifts to "improve your draft" mode — refining your message while keeping your intent intact.

🗣️

Custom Persona

Beyond presets, describe your role, audience, and words to use or avoid. Saved locally so your voice is always consistent.

One-Click Insert

Generated text goes straight into the WhatsApp compose box. Or copy it manually. No switching between apps or tabs.

🌐

Response Language

Auto-match the conversation's language, or pin to a fixed language like English, Spanish, Hebrew, or Japanese.

🔄

Resilient Context Reading

Built to stay useful as WhatsApp Web's UI evolves — including paths through shadow DOM. Just hit Refresh if anything shifts.

🔔

Clearer Error Messaging

When something goes wrong with your API key or quota, you get actionable guidance — not a blank error screen.

Up and running in minutes

No account. No subscription. No backend. Just your own Gemini API key.

1

Install the extension

Add to Chrome from the Web Store. Open the popup with the extension icon.

2

Paste your Gemini API key

Get a free key at aistudio.google.com. It's stored locally on your device — never sent to our servers.

3

Open WhatsApp Web

Navigate to web.whatsapp.com, open any chat, and hit Refresh Conversation.

4

Generate, translate, insert

Pick a tone, hit Generate, and insert or copy the reply. Translate via the popup or the message ⋯ menu.

WA AI Response Helper
✦ Gemini 2.5 Flash
Hey! Are we still meeting tomorrow at 10?
Yes, see you then!
Great, should I bring anything? ☕
Friendly
Professional
Casual
Formal
Concise
No need to bring anything — just yourself! I'll have coffee ready for us. Looking forward to it! 😊

Sound like you, not a template

Six built-in personas plus your own custom description. Choose words to use, avoid, your role, your audience — saved locally.

Custom Persona Example

"I'm a project manager. Keep replies action-oriented and brief. Avoid corporate jargon. Always end with a clear next step."

💼

Professional

Clear, polished, business-ready

😎

Casual

Relaxed, natural, everyday

😊

Friendly

Warm, approachable, upbeat

📋

Formal

Proper, structured, respectful

🤝

Empathetic

Caring, understanding, supportive

Concise

Short, direct, no fluff

🌍

Inline Translation

Auto → English
¿Puedes enviarme el informe antes del viernes?
Translation

Can you send me the report before Friday?

Translate where you already work

No copy-pasting into Google Translate. See translations inline under the message bubble, or from the popup preview. Set your default target language in Settings.

From the message menu

Tap the ⋯ menu on any message and choose Translate — result appears right below the bubble.

🔢
From the popup preview

Translate any line in the recent messages preview. Copy the result directly from the popup.

⚙️
Configurable target language

Choose your default "translate into" language once in Settings. Switch anytime.

Your key. Your data. No middlemen.

🔑
API key stays on your device

Stored in Chrome's extension storage — never transmitted to any server operated by this extension.

Data sent only when you act

Chat text goes to Google's Gemini API only when you press Generate or Translate — not passively.

🚫
No extension backend

There is no server run by this extension author. Your messages go directly to Google's API — nowhere else.

🌐
Minimal host permissions

Access is limited to web.whatsapp.com and Google's Generative Language API. Nothing broader.

Data Flow
You WhatsApp Web
Extension Reads Chat
↓ Only when you click Generate or Translate
Sends to Google Gemini
Returns AI Response
↓ Extension inserts into WhatsApp
🚫  No extension author server ever involved
Your API key and chat data are governed by Google's Privacy Policy. Subject to your Gemini API quota and billing.

Smarter replies start now

Free to install. Bring your own Gemini API key. Works entirely in your browser.

Add to Chrome — It's Free

Requires a free Gemini API key from Google AI Studio and Google Chrome.