All Utilities

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• Open Auto Loan Calculator
  Auto Loan Calculator Finance

  Estimate a car loan payment with vehicle price, down payment, trade-in value, sales tax, fees, APR, and term.

• Open Base64 Decode and Encode
  Base64 Decode and Encode Developer

  Decode Base64 into text and encode text back to Base64 instantly in your browser.

• Open BMI Calculator
  BMI Calculator Health

  Calculate BMI with standard or metric measurements, adult category ranges, and age- and sex-aware guidance.

• Open Bread Calculator
  Bread Calculator Food

  Scale bread recipes with baker's percentages, ingredient weights, dough weight, and hydration.

• Open Break-Even Calculator
  Break-Even Calculator Business

  Calculate break-even units, break-even revenue, contribution margin, target profit sales, and margin of safety.

• Open Color Contrast Checker
  Color Contrast Checker Design

  Check foreground and background colors against WCAG contrast ratios for normal and large text.

• Open Color Converter
  Color Converter Design

  Convert CSS colors between hex, RGB, HSL, OKLCH, and Lab formats.

• Open Credit Card Payoff Calculator
  Credit Card Payoff Calculator Finance

  Compare snowball and avalanche payoff plans across one or more credit cards.

• Open Cron Expression Tool
  Cron Expression Tool Developer

  Explain cron expressions in plain English, preview upcoming runs, and generate Unix, seconds, or Quartz cron schedules.

• Open Email Subject Line Tester
  Email Subject Line Tester Marketing

  Preview your email subject line in various inbox sizes and score length, readability, punctuation, spam-risk words, and clear value.

• Open FIRE Monte Carlo Simulator
  FIRE Monte Carlo Simulator Finance

  Test your FIRE plan with Monte Carlo and rolling historical retirement simulations using stocks, bonds, cash, inflation, and withdrawals.

• Open Game Scorekeeper
  Game Scorekeeper Games

  Track player scores for board games, card games, party games, and casual competitions.