| What it does | Free online tools that run entirely in your browser with no uploads, signup, or tracking
| Free AI BaZi calculator with astronomical precision and plain-English life readings
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - PDF editing with original fonts preserved
- Image compression to exact KB target
- PDF tools including merge, split and OCR
- Over 100 calculators for math, finance and home projects
- Unit converters and data format converters
- Document and code generators
- Text processing and analysis tools
- Developer utilities including UUID and Base64 tools
- Fancy text and invisible character generators
- All tools run locally in browser with no server uploads
| - Four Pillars natal chart calculation with True Solar Time calibration
- Day Master personality archetypes and core element analysis
- 10-Year Da Yun luck cycle forecasting
- 78-pair Synastry matrix for relationship compatibility
- Daily Tong Shu Almanac with auspicious activities and taboos
- Birth-time rectification engine for unknown birth hours
- AI prompts for ChatGPT and Claude interpretation
- Zi Wei Dou Shu (Purple Star Astrology) cross-verification
- Deterministic solar-longitude ephemeris from 1900 to 2100
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| What makes it different | - All tools run entirely in your browser with no file uploads to servers
- No signup or account creation required
- No watermarks or paywalls on any tool
- Each tool tested before launch and automatically re-tested regularly
| - Astronomical precision using True Solar Time and Equation of Time, not standard clock time
- Zero birth-data monetization and privacy-first browser-based computation
- 100% free with no signup, paywall or feature locks
- 24-hour human response SLA for technical and archival inquiries
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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) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 12 | 12 |
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| Referring domains (Majestic) | 1 | 3 |
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ToolVaultly
BaziTools