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Science & Engineering
Open tool Angular Velocity Calculator
Create a bounded, browser-local angular velocity calculator with visible assumptions, review guidance, and downloadable output.
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File Converters
Open tool BibTeX to CSV
Convert BibTeX into CSV locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.
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Web & Social
Open tool Browser User-Agent Parser
Create a bounded, browser-local browser user-agent parser with visible assumptions, review guidance, and downloadable output.
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Analytics & Research
Open tool Codebook Template
Create a bounded, browser-local codebook template with visible assumptions, review guidance, and downloadable output.
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Design, Color & Branding
Open tool Color Contrast Checker
Create a bounded, browser-local color contrast checker with visible assumptions, review guidance, and downloadable output.
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Construction & Manufacturing
Open tool Concrete Volume Calculator
Create a bounded, editable concrete volume calculator from supplied project data with transparent assumptions and professional safeguards.
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Finance & Business
Open tool Contribution Margin Planner
Create a bounded, browser-local contribution margin planner with visible assumptions, review guidance, and downloadable output.
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Analytics & Research
Open tool Conversion Rate Calculator
Create a bounded, browser-local conversion rate calculator with visible assumptions, review guidance, and downloadable output.
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Agriculture & Gardening
Open tool Crop Rotation Planner
Create a bounded, browser-local crop rotation planner with visible assumptions, review guidance, and downloadable output.
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File Converters
Open tool CSV to EPUB
Convert CSV into EPUB locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.
Ready to use
Finance & Business
Open tool Customer Acquisition Cost Calculator
Calculate blended acquisition cost from aligned sales and marketing spend.
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Productivity & Business Ops
Open tool Duplicate Ticket Incidence Rate Calculator
Measure reviewed tickets linked as duplicates under one rule.