FlowReader

English

简体中文

English

简体中文

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FlowReaderTurn passive reading into active language learning with AI

Instant text analysis, smart simplification, and grammar visualization for English learners

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Instant Analysis

Select text on any webpage to trigger instant AI-powered analysis with streaming responses.

📉

Smart Simplification

Rewrites complex sentences into simple English (A1-A2 level) using a typewriter effect.

🔍

Grammar Visualization

Automatically highlights Subject, Predicate, and Object to help you understand sentence structures.

📚

Adaptive Vocabulary

Filters words based on your CEFR level (500~8000 words), provides definitions and translations, and remembers words you mark as "Known".

🤖

Multi-Model Support

Supports Zhipu AI (GLM-4.7), OpenAI, and custom API endpoints with BYOK (Bring Your Own Key).

🔒

Privacy First

Your API Keys and reading data are stored locally in your browser and never sent to our servers.

What is FlowReader? ​

FlowReader is an open-source browser extension designed for developers and English learners (A1-B2). It uses AI to instantly analyze selected text on any webpage, breaking down complex sentences, visualizing grammar structures, and explaining vocabulary based on your proficiency level.

How It Works ​

1. Select Text ​

Highlight any sentence or paragraph on a webpage

2. Click the Icon ​

A FlowReader icon appears near your selection

3. Learn & Understand ​

  • View simplified text streaming in
  • Check colored grammar highlights
  • Learn vocabulary with translations

Privacy Commitment ​

FlowReader is a pure frontend application. Your data stays on your device:

  • ✅ API Keys stored locally in chrome.storage.local
  • ✅ Reading history never leaves your browser
  • ✅ No server-side data collection
  • ✅ No analytics or tracking

Released under the AGPL v3.0 License.

Copyright © 2026-present FlowReader