| What it does | Free financial calculators for certificates of deposit, mortgages, retirement, and loans with charts and schedules
| Free online calculators, converters, and developer tools that run in your browser
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| Stage | Startup
| Startup
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| Founded | 2026
| 2025
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Certificate of deposit calculator with growth projections and tax-adjusted returns
- Mortgage and real estate calculators including refinancing analysis
- Retirement planning tools for 401(k), IRA, pension, and Social Security
- Loan and debt payoff calculators
- CSV export and print functionality
- Transparent formulas documented on every calculator page
- Over 70 calculators across six financial categories
| - 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
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| What makes it different | - All calculations run locally in your browser with no data stored on servers
- Completely free with no sign-up, account, or paywall required
- Independent with no product recommendations or paid placements
- Transparent formulas allow verification against spreadsheets or bank statements
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ▼ −1 (down) since last check | 4 ● no change since last check |
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| Trust Flow (Majestic) | 9 | 3 |
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| Citation Flow (Majestic) | 9 | 35 |
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| Referring domains (Majestic) | 27 | 6 |
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CDCalculator
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