| What it does | Free online calculators, converters, and developer tools that run in your browser
| Free construction, trades and industrial calculators that work offline
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| Stage | Startup
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| Founded | 2025
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| Based in | Not given
| AE
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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
| - 130+ specialized calculators for construction and trades
- Instant imperial and metric unit toggling
- Calculations aligned to verified industry standards
- Zero tracking and complete privacy on calculations
- Real-time material pricing index for concrete, lumber, and rebar
- Custom B2B calculator embedding and white-label licensing
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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
| - Engineering-grade accuracy citing primary standards like ASTM and ISO
- Dual-market architectural support for US and GCC specifications
- Complete client-side processing with zero external data transmission
- No setup, registration, or login requirements
- Transparent calculation methodology with published test vectors
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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 | 13 |
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| Referring domains (Majestic) | 6 | 1 |
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PlayTools
buildercalc