WhatsApp Translator

WhatsApp Translator is a Chrome extension built for people who chat across languages on WhatsApp Web. It brings real-time translation directly into the conversation: received messages are automatically rendered in your native language, and you can also trigger translation on a single message with the built-in translate button, which is handy in busy threads where auto-translation is off.

It also works in the other direction. Before you send a message, the extension can translate your draft so the recipient reads it in their language rather than having to decode your original. Setup is quick: install the extension, pin it, set your native language from the extension icon, and the translate controls appear inside WhatsApp Web.

Access is free for limited use, with a paid Premium plan for unlimited translation. The developer states that data remains on your local device and does not pass through their servers. It is published by the team behind codecode.me, which has a good record on the Chrome Web Store, and the extension supports sixteen interface languages.