| What it does | Free online calculators, converters, and developer tools that run in your browser
| Free source-checked paycheck and tax calculators with every rate linked to official sources
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| Stage | Startup
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| Founded | 2025
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| Based in | Not given
| IN
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| Pricing model | Free
| Free
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| Pricing | Not given
| The calculators are free to use and do not require an account.
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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
| - Paycheck and income tax calculators for US and 12 other countries
- Every rate linked to official tax agencies
- Calculations tested against official worked examples
- Source documentation with retrieval dates for every figure
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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
| - Every rate is sourced from official tax agencies with links to original documents
- All figures are dated and checked for accuracy against official methods
- Transparent about gaps where data is not yet verified
- Covers 15 countries with a unified approach to transparency
- Plain English explanations alongside all calculators
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 35 | 0 |
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| Referring domains (Majestic) | 6 | 0 |
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PlayTools
CalcBloc