Answer me with HTML
Turns your agent's long answers into one readable web page with diagrams and tables
by Cyan
Read Frog
by MengXiAppLearn a topic
Translates web pages and video subtitles side by side and saves new words as flashcards
The problem it solves
You open an article in the language you're learning, hit three unknown words in the first line, and give up.
For Language learnersPeople reading in a second languageStudents
- Before
- You paste sentences into a translator tab, lose your place, and forget the new words by tomorrow.
- After
- Translations appear beside the original on the page and in subtitles, and the words you save come back as flashcards when they are due.
- Stars
- ★ 10k
- License
- GPL-3.0
- Cost
- Free
- Platforms
- Mac · Win · Linux
- Runs
- Local
Overview
Read Frog is an open-source browser extension for learning languages while you read. It shows translations next to the original text on web pages and in YouTube, X and Netflix subtitles, explains or reads aloud the text you select, and saves words to flashcards for spaced review. You can use free Google or Microsoft translation, or connect one of more than 20 AI providers. It suits language learners and anyone who reads in a second language.
It is an open-source alternative to Immersive Translate that adds flashcard review, so the words you meet while reading become study material.
Try these first
Start with the first one: it is a small task you can check easily.
- Open a short news article in [language you are learning], turn on bilingual mode and compare three paragraphs with the original.First try
- Select a sentence you don't understand and choose Explain to get it at your level.
- Turn on subtitle translation for a YouTube video in [language] and watch with both lines.
- Save five new words while reading, then review them as flashcards the next day.needs an account
Example prompts written by Agent Flows Hub.
Features
From the creator's documentation.
| Feature | What it does | Runs |
|---|---|---|
| Bilingual pages | Shows the translation beside the original, or translation only | Web pages you open |
| Selection toolbar | Translate, explain or read aloud the text you select | Web pages you open |
| Subtitle translation | Bilingual subtitles on YouTube, X and Netflix | Video sites |
| Text-to-speech | 300+ voices in 70+ languages, free | Online voices |
| Flashcards | Save words and notes, then review them on a spaced schedule | Read Frog account |
| AI providers | Free Google or Microsoft translation, or 20+ AI providers with your own key | Translation service |
Good to know
You read articles or watch videos in a language you are learning. Read Frog shows the translation beside each paragraph or subtitle line and lets you save unfamiliar words as flashcards for later review.
Limits
- Free translation uses Google, Microsoft or DeepLX; AI translation, explanations and context-aware translation need your own provider key or a paid Read Frog plan.
- The free plan limits saved notes and flashcard review; the pricing page lists the current limits.
Notes by Agent Flows Hub (original project name: Read Frog), written from the creator's documentation, not from running it ourselves. Read Frog README · Read Frog pricing
Stuck setting it up?
Tell us what happened. We take a look first; if it needs paid work, you get an estimate before anything starts.
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