Read Frog: Open Source AI-Powered Immersive Translate Extension

Read Frog: Open Source AI-Powered Immersive Translate Extension

Summary

Read Frog is an open-source, AI-powered browser extension designed for immersive language learning. It offers features like bilingual translation, context-aware AI, text-to-speech, and deep article analysis to help users master languages effortlessly. Available for Chrome, Edge, and Firefox, it supports over 20 AI providers and various translation modes.

Repository Info

Updated on March 15, 2026
View on GitHub

Introduction

Read Frog is an innovative open-source browser extension that transforms your web browsing into an immersive language learning experience. Powered by artificial intelligence, it aims to make language acquisition effortless and deep, right within your browser. This project envisions a world where language barriers are minimized through intelligent, personalized tools, reducing reliance on traditional language instructors.

Installation

Getting started with Read Frog is straightforward. The extension is available for major browsers, ensuring a wide reach for language learners.

For users in mainland China, a Chrome mirror is also available.

Examples

Read Frog offers a suite of features designed to enhance your language learning journey.

  • Bilingual / Translation Only: Seamlessly switch between displaying original text alongside its translation or replacing the original text entirely for a focused reading experience.
  • Selection Translation: Select any text on a webpage to instantly translate it, get explanations, or have it read aloud using the smart toolbar.
  • Context-Aware Translation: Leverage AI to understand the full context of an article, providing more accurate and nuanced translations for technical terms and literary expressions.
  • Subtitle Translation: Translate YouTube subtitles directly within the video player, making foreign language video content accessible for learning.

Why Use It

Read Frog stands out with its powerful AI integration and user-centric design, making it an indispensable tool for language learners.

  • Extensive AI Provider Support: Connects to over 20 AI providers via Vercel AI SDK, including OpenAI, DeepSeek, Anthropic Claude, Google Gemini, and more, offering flexible and powerful translation options. Free options like Google Translate and Microsoft Translate are also available.
  • Customization and Efficiency: Define your own translation prompts for domain-specific accuracy and utilize intelligent Batch Requests to save up to 70% on API costs.
  • Advanced Learning Tools: Benefit from high-quality Text-to-Speech (TTS) powered by Edge TTS, supporting 150+ voices across 80+ languages. The "Read Article" feature provides one-click deep article analysis, including summaries, introductions, and sentence-by-sentence translations with vocabulary and grammatical explanations tailored to your level.
  • Community-Driven: As an open-source project, Read Frog welcomes contributions and feedback, fostering a vibrant community dedicated to improving the language learning experience.

Links

Explore Read Frog further and join its growing community: