| What it does | Free tournament bracket generator for printing and sharing
| Free power station runtime calculator for portable battery systems
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| Stage | Not given
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| Founded | Not given
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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 | - Single elimination, double elimination, and round robin tournament formats
- Support for 3 to 128 teams
- Automatic bye placement for non-power-of-two team counts
- Print-ready output on letter, A4, and poster sizes
- Shareable links that preserve bracket and team names
- No account or registration required
- Browser-based generation with no server storage
| - Runtime calculator for 52 power station models across 6 brands
- Device power consumption presets with 20+ common appliances
- Transparent assumptions with every specification linked to source
- Cautious, typical and optimistic runtime range estimates
- Output compatibility checking against power station ratings
- Solar recharge duration calculator
- Power station comparison tool
- Capacity calculator for determining required battery size
- Scenario planners for CPAP overnight and home outage situations
- Free embeddable widgets for blogs and review sites
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| What makes it different | - No database, no server storage—data stays entirely in your browser
- Prints correctly on one page on first try without watermarks or subscriptions
| - Every specification sourced directly from manufacturer pages and manuals, not retailer listings or forums
- All formulas and assumptions transparently shown with labeled defaults and sources
- Independent verification requiring specs confirmed from manuals rather than marketing copy
- Continuously updated specs checked between 180-day intervals with automated verification scripts
- No guesswork; empty fields stay empty when manufacturers do not publish data
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 9 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 5 |
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| Citation Flow (Majestic) | 18 | 17 |
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| Referring domains (Majestic) | 11 | 4 |
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Bracketree
Kilohour