browser extension / language learning and translation
Read Frog is an AI-powered browser extension for language learning and immersive translation, offering interactive article analysis and multilingual support for reading foreign-language web content.
Same problem, same approach. Swapping one for another is a config change, not a rewrite.
Prefer it when you want a mature, widely adopted bilingual whole-page translator with broad document support and no AI language-learning analysis.
沉浸式双语网页翻译扩展 , 支持输入框翻译， 鼠标悬停翻译， PDF, Epub, 字幕文件, TXT 文件翻译 - Immersive Dual Web Page Translation Extension
Prefer it for a minimalist bilingual translation extension or userscript with no LLM dependencies, ideal for quick low-setup page translation.
A simple, open source bilingual translation extension & Greasemonkey script (一个简约、开源的 双语对照翻译扩展 & 油猴脚本)
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
Prefer it when your main need is mouseover/hover translation, OCR, subtitles, and image/PDF translation, rather than whole-page AI reading assistance.
Mouseover Translate Any Language At Once - Chrome Extension: PDF Translator, EBOOK, EPUB, OCR, TTS, NETFLIX, YOUTUBE DUAL SUBTITLES, GOOGLE DOCS, AI, VIEWER, GMAIL, WRITING, IMAGE, DUAL SUBS, MANGA, HOVER, DICTIONARY, WEBTOON, EDGE, JAPANESE, ENGLISH
Prefer it for offline personal dictionary learning, subtitle translation, and highlighted-text translation without the AI article-analysis layer.
Translate web pages, highlighted text, Netflix subtitles, private messages, speak the translated text, and save important translations to your personal dictionary to learn words even offline
Prefer it when you want a professional pop-up dictionary with new-word notebook plus page translation, avoiding LLM dependencies.
🥗 All-in-one professional pop-up dictionary and page translator which supports multiple search modes, page translations, new word notebook and PDF selection searching.
These projects were analysed and named read-frog among their alternatives. The relationship is not symmetric — how read-frog rates them is a separate judgement, made when read-frog is analysed in its own right.
calls read-frog “Use it for bilingual reading integrated with language-learning tools, if your focus is on learning rather than generic page translation.”
An open-source browser extension for bilingual webpages, instant selection translation, and flexible translation services. 一款开源浏览器翻译插件，提供网页双语阅读、即时划词翻译和灵活的翻译服务配置。