The plug-in supports immersive translation, intelligent content extraction, comprehensive interpretation, situational learning, multi-AI models and other functions. A good open source alternative to immersive translation!
Open source browser extension project called Read Frog, the main functions are as follows:
Project overview
- full name：Read Frog – Open‑Source Immersive Translate
- developers: mengxi‑ream (First ByteDance Software Engineer)
- function: It is an AI-driven language learning aid that supports Chrome and Edge browsers
Core features
- Immersive translation (Inline Translation)
Display the translation directly next to the original paragraph to keep the reading context continuous - Intelligent content extraction
Automatically identify and extract the main content of web pages, reduce interference, and focus on learning - Detailed explanation and learning assistance
Support clicking or hovering to view CEFR-level definitions, example sentences, pronunciation and grammar descriptions of words, phrases, and sentences - Multiple model support
Currently, AI models such as OpenAI GPT‑ 4o and DeepSeek are supported, and the architecture supports access to more models in the future (open source models, local deployment, etc.) - Privacy first local operation
Translation requests are executed on the client, the API Key is provided by the user, and the project does not pass through the author server, protecting privacy - Offline support synchronization scheme
Data storage adopts IndexedDB (Dexie) to provide offline experience; Firebase synchronization will be supported in the future (not yet enabled)
Applicable population
- Users who want to learn language through real web content
- Readers who need in-depth understanding of foreign language articles (news, blogs, etc.)
- People who want to turn the browser into a language learning tool
📦 Download and use
- Extensions can be added directly on the Chrome Web Store and Edge Add‑ons
- Running environment: TypeScript + React + Tailwind + Vite + WebExtension API
🛠Community and development
- This project is licensed under the GPL‑3.0 open source license, and you are welcome to contribute code, submit Feature Requests or Bug reports
- There are 630+ stars and 40+ forks on GitHub. You can join communities such as Discord/WeChat Group to participate in discussions
summary
Read Frog is an AI language learning extension embedded in the browser。Through immersive translation, content extraction, detailed annotations and flexible access to AI models, it transforms reading web pages into an efficient learning process. It is especially suitable for users who want to “learn language from real content.”
GitHub：https://github.com/mengxi-ream/read-frog
Oil tubing: