| What it does | Free online calculators, converters, and developer tools that run in your browser
| 200+ free online calculators for finance, health, math, and more with no sign-up required
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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
| - Finance calculators including loans, taxes, investments, and budgeting
- Health calculators for BMI, calories, pregnancy, and wellness
- Education and GPA calculators for university graders and exam scores
- Construction and materials calculators for concrete, lumber, and costs
- No sign-up required to use any calculator
- Clear inputs and results with estimates labeled
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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
| - Over 200 free calculators in one place
- Always free with no account or sign-up needed
- Organized by category for easy navigation
- Built and maintained by one person with AI assistance
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ▲ +1 (up) since last check | 8 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 5 |
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| Citation Flow (Majestic) | 35 | 20 |
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| Referring domains (Majestic) | 6 | 7 |
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PlayTools