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/units/Tier 0Unit convertersLength, mass, temperature, capacitance and more. Defaults follow your region.cm-to-inches · kg-to-lbs · mm-to-inches/codes/Tier 0Code lookupsResistor and capacitor markings, SMD codes, decoded instantly.morse-code-translator · roman-numeral-converter · resistor-color-code/dev/Tier 0Developer toolsEncoders, hashes, token decoders, formatters — all client-side, nothing logged.password-generator · json-formatter · base64-encode/sizes/Tier 0Size chartsShoes and clothing across regions, your region as the source column.us-to-eu/calculators/Tier 0–1CalculatorsFinance, taxes by country, math, geometry, dates. Every formula is documented and sourced.bmi-calculator · currency-converter · mortgage-calculator/tools/Tier 0ToolsText tools, QR codes and file tools that run in your browser: counters, sorting, cleanup and generators.word-counter · qr-code-generator · character-counter
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Paycheck calculatorTables reviewed Oct 17, 2026401(k) calculatorTables reviewed Oct 17, 2026Roth IRA calculatorTables reviewed Oct 17, 2026Sales tax calculatorTables reviewed Oct 17, 2026Overtime calculatorTables reviewed Oct 17, 2026Capital gains tax calculatorTables reviewed Oct 17, 2026Self-employment tax calculatorTables reviewed Oct 17, 2026
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