Huadong
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Highlight a passage, understand it in a floating conversation, and keep reading. Huadong is a free, client-side Chrome extension with English/Chinese support, screenshot questions and interactive charts. Bring an OpenAI API key or configure the Mac helper for an eligible ChatGPT account. AI usage is subject to your provider’s charges and limits.
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More like this: all 215 launches in browser extensions →
PH · launched Oct 23, 2026 · 1 upvote (top 67%)
- Horizontal
- Agent / copilot
- Prosumer
- AI-native
- Commercial product
- Chrome Extensions
- Productivity
Similar launches
See all 69 similar launches →Could you build this?
Yes A Chrome extension that captures highlighted text and opens a floating chat powered by the OpenAI API is a common pattern, and the screenshot and chart features are additional API calls.
Competitors
Other products that read as similar to this one : 69 launches clear the similarity bar, closest 8 shown.
Attention rank: #30 of 70 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 170 days after the earliest competitor.
- Lingo Bear · ph · 2026-09-16 · 1 upvotes · similarity 0.43
- SparkleChinese · hn · 2026-08-19 · 5 upvotes · similarity 0.43
- Chinese Text to Speech · ph · 2026-10-06 · 1 upvotes · similarity 0.42
- Yiging (I Ching) · ph · 2026-10-09 · 1 upvotes · similarity 0.42
- Zhenzhu · ph · 2026-09-18 · 2 upvotes · similarity 0.41
- Enhance ChatGPT · ph · 2026-11-02 · 1 upvotes · similarity 0.40
- Fluendly · ph · 2026-09-09 · 2 upvotes · similarity 0.39
- LumenRead · ph · 2026-09-15 · 1 upvotes · similarity 0.39
Other launches for this product
- No other launches for this product.