Tools that do one thing well
37 free utilities, no signup and nothing to install. Most run entirely in your browser — when the processing is local, your files never leave your computer.
Calculators
Charts
Color
Comparisons
Converters
Developer
Finance
- Currency Converter Any currency, crypto and stablecoins — with an advanced spread and fee mode.
- CD Calculator See what a certificate of deposit actually earns, with APY and early-withdrawal penalties.
- eBay Fee Calculator What eBay actually takes, what you keep, and the price you break even at.
- NPS Calculator Net Promoter Score with the margin of error most calculators leave out.
- PTO Accrual Calculator Project your paid-time-off balance, and see what the accrual cap is costing you.
- Cap Rate Calculator NOI, cap rate and the price a target yield implies — financing kept out, on purpose.
- Customer Lifetime Value Calculator LTV two ways — simple and discounted — with LTV:CAC and CAC payback.
- DSCR Loan Calculator Debt service coverage on all three lender conventions — and the largest loan your rent clears.
Gaming
Generators
health
Image
Other
- Asphalt Calculator Tons, truck loads and cost from area and thickness — with compaction handled correctly.
- Fence Calculator Posts, rails, boards and concrete for any run — with the off-by-one handled.
- Stair Calculator Risers, treads, stringer and pitch — drawn in profile, checked against Blondel.
- Drywall Calculator Sheets, screws, mud and framing — with small openings correctly left in.
Network
Random
Text
- Convert Case Fix Caps Lock, switch to Title Case, sentence case, camelCase and more.
- Word Unscrambler Unscramble letters into every valid word, in English and Portuguese.
- Name Combination Generator Blend two or more names into pronounceable combinations.
- Text Sorter and Alphabetizer Sort lines alphabetically, numerically, by length — and remove duplicates.
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