Ninja Translate — Instant AI Translation

Highlight any text for an instant AI translation and explanation — no account, no API key. Your language tutor on every page.

😍 Free to use. No account. No API key. 🎉 Just install and go. Ever had a single word throw off your entire reading flow? Looked up a translation, only to still have no clue what it means? Tab over, copy, paste, search — and just like that, you've lost the thread. Ninja Translate keeps you in the flow. Highlight any text and get an instant AI-powered translation and explanation — right there, without leaving the page. Key features: - Instant translation for any highlighted text — words, sentences, or whole paragraphs - Ask the AI follow-up questions right in the sidebar - Deep context, nuance, and grammar explanations with the Explain feature - Hear any word or phrase read aloud with built-in TTS - Review your lookup history whenever you need a refresher - Supports English, Japanese, Korean, Chinese, Spanish, French, and more. Works with any language. Getting started: 1. Install the extension and click the icon to open the sidebar. 2. Choose your native language. 3. Highlight any foreign text on a webpage — the translation appears instantly.