| What it does | Immersive bilingual web translation and YouTube dual subtitles powered by DeepSeek, Claude, and Gemini
| Open, read, annotate and export local and web Markdown files in Chrome or Edge
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| Pricing model | Freemium
| Freemium
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| Pricing | Free plan: $0 forever with built-in Google and Edge translation engines and custom API key support. Pro plan: $2.99 USD per month or $24.99 USD per year (Save 33% with annual billing), includes official Cloud AI models (DeepSeek V3, Claude 3.5, Gemini 1.5), 10,000,000 AI tokens per month, YouTube du
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| Key features | - Immersive bilingual alignment with zero layout breakage
- YouTube and video dual subtitles with synchronized real-time display
- Instant selection lookup with floating quick-action ball
- Six translation display styles (None, Dotted Underline, Marker, Quote Block, Subtle, Hover Learn)
- Support for DeepSeek, Gemini, Claude, and OpenAI AI models
- Bring Your Own Key (BYO-Key) with local privacy
- Support for custom API endpoints and local Ollama models
- Access to Google Translate and Microsoft Edge Neural Translate
- Seamless cloud member synchronization across devices
- 7-day money-back guarantee
| - Folder browsing and file navigation with reading position memory
- Document outline and search across folder or document
- Highlights, underlines, and comments linked to source
- Diagram rendering including Mermaid, Graphviz, PlantUML and Vega-Lite
- Math rendering with KaTeX and syntax-highlighted code
- Multiple views as document, mind map, or presentation
- Export to HTML, Word, PDF, PNG, SVG and JPEG
- Customizable document themes and background skins
- Localized interface in 15 languages
- All processing and data stored locally on device
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| What makes it different | - Preserves 100% of webpage structure and code without layout breakage
- Native dual-line synchronized subtitles for YouTube videos
- Absolute local privacy with client-side encryption of API keys and browsing data
- Powered by cutting-edge LLMs with deep contextual understanding
- Zero-config Pro Cloud AI with no overseas API key registration required
| - Works offline with no account required
- Renders technical Markdown inline including diagrams, math and code
- Multiple connected views of the same file as document, mind map or presentation
- Export to multiple formats without modifying the original Markdown
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 21 ▲ +1 (up) since last check | 8 ● no change since last check |
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| Trust Flow (Majestic) | 5 | 5 |
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| Citation Flow (Majestic) | 18 | 22 |
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| Referring domains (Majestic) | 8 | 39 |
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Markdown Viewer