All Tools (890) · Page 3 of 19

Convert text to all lowercase.

Capitalize the first letter of each word.

Find hidden Unicode characters in text.

Count total and non-empty lines.

Compare two text blocks line-by-line.

Count how often each word appears.

Reverse the order of words in text.

Bulk replace strings or regex patterns.

Convert ASCII codes back to characters.

Convert each character to its ASCII code.

Decode hexadecimal back to text.

Convert each character to hexadecimal.

Convert base-2 numbers to base-10.

Convert base-10 numbers to binary.

Convert decimal numbers to hexadecimal.

Convert hexadecimal back to decimal.

Convert base-8 numbers to base-10.

Convert base-10 numbers to base-8.

Convert numbers into English words.

Convert numbers to Roman numerals.

Check if a number is prime.

Compute n! for any positive integer.

Generate the Fibonacci sequence.

Greatest common divisor of two numbers.

Least common multiple of two numbers.

Solve ax² + bx + c = 0.

Compute simple interest and totals.

Compute compounded growth over time.

Find savings and final price after discount.

Split bills and calculate tips fast.

Compute sales tax and grand total.

Mean, median, sum, and count of numbers.

Simplify A:B ratios automatically.

Days, weeks, months between two dates.

Add or subtract days from a date.

Countdown days from today to a target.

Find the ISO week number for a date.

Live countdown to any date and time.

Precise stopwatch with millisecond display.

Convert a time across major time zones.

Explain what a cron schedule means.

Generate 10 darker shades of a color.

Generate 10 lighter tints of a color.

Get the perfect opposite color on the wheel.

Browse all 140 named CSS colors.

Convert RGB values into HSL.

Convert HSL values into RGB.

Convert HEX colors to print-friendly CMYK.