| What it does | Free online calculators, converters, and developer tools that run in your browser
| Free financial calculators for loans, investments, savings and unit conversion
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| Stage | Startup
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| Founded | 2025
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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 | - 68 free tools across finance, development, and utilities
- Loan repayment and affordability calculators with total interest calculations
- Currency converter with 30 world currencies and live exchange rates
- JSON formatter, validator, and minifier with syntax highlighting
- Date and time tools including age calculator and timezone converter
- Runs entirely in browser with no server uploads
- Works offline after initial page load
| - Year-by-year schedule tables for long-term projections
- Chart.js visualizations to understand trends
- AI-generated insights and actionable suggestions
- Pre-filled example inputs for instant results
- 50+ calculators covering investing, loans, savings and business
- Mobile-friendly interface with compact navigation
- Lightweight site designed for speed
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| What makes it different | - No account or sign-up required
- Runs entirely client-side in your browser with no data sent to servers
- All tools are completely free with no usage limits
- Works offline after initial page load
- Privacy-first approach with no data collection or transmission
| - No paywalls, sign-ups or personal information required
- Uses standard financial formulas consistent with professional institutions
- Clear results with plain-language insights and visual breakdowns
- Unified toolkit instead of jumping across disconnected tools
- Decision-grade outputs with key metrics and detailed breakdowns
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ▼ −1 (down) since last check | 11 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 4 |
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| Citation Flow (Majestic) | 35 | 23 |
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| Referring domains (Majestic) | 6 | 15 |
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PlayTools
TheCalculatorWorld