Count words, characters, sentences, and paragraphs in real-time.

Preview Markdown with live HTML rendering.

Convert text between uppercase, lowercase, title case, and more.

Compare two blocks of text and visualize line-by-line differences.

Remove duplicate lines, trim whitespace, and sort lines in bulk.

Generate strong, secure passwords with custom settings.

Prettify and validate your JSON data.

Convert JSON to YAML and YAML to JSON with formatting.

Convert JSON into PHP short array syntax.

Decode JWT headers and payloads without verifying signatures.

Encode text to Base64 or decode Base64 strings.

Visually create CSS box-shadows and copy the code.

Check color contrast ratios against WCAG accessibility standards.

Clean strings into URL-friendly slugs.

Convert between various units of length like meters, feet, inches, and miles.

Convert between weight units such as kilograms, pounds, ounces, and grams.

Convert temperatures between Celsius, Fahrenheit, and Kelvin.

Convert between sq ft, sq meters, acres, hectares, sq yards, and more.

Convert cooking measurements (volume vs weight) based on ingredients.

Convert between Bits, Bytes, KB, MB, GB, TB, PB.

Convert speed between MPH, KPH, Knots, Mach, and more.

Convert between liters, gallons, cups, tablespoons, and more.

Convert colors between Hex, RGB, and HSL formats.

Generate placeholder text for your designs.

Generate QR codes from text or URLs.

Generate UUIDs in bulk and validate existing UUID strings.

Calculate monthly payments, total interest, and amortization for loans and mortgages.

Visualize how your investments grow over time with compound interest.

Calculate the value of money over time using US CPI data.

Convert salary between hourly, daily, weekly, monthly, and yearly rates.

Calculate tips and split bills easily.

Calculate discount amounts, savings, and final prices from percentage discounts.

Calculate sales tax and final price, including reverse calculation for prices that include tax.

Calculate return on investment with profit/loss metrics and annualized returns.

Calculate Body Mass Index (BMI).

Calculate body fat percentage using the U.S. Navy method.

Estimate daily water intake needs based on your body.

Scale recipes up or down by adjusting serving sizes with fraction conversion.

Convert between Celsius, Fahrenheit, and Gas Mark for oven temperatures.

Convert recipes between different pan sizes and calculate scaling factors.

Calculate hydration and ingredient ratios for bread making using baker's percentages.

Calculate perfect water-to-rice ratios for different rice types.

Calculate the duration between two dates.

Calculate exact age in years, months, and days.

Convert Unix timestamps to human-readable dates and vice versa.

Convert time between different time zones.

Run focused pomodoro sessions with breaks and cycle tracking.