Simple Online Tools
Free, fast utilities — no sign-up, no ads (yet). Each tool does one thing well.
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Sleep Cycle Calculator
What time should I go to bed? Calculates optimal bedtimes based on 90-minute sleep cycles.
Days Until Calculator
Count days until (or since) any date. Perfect for countdowns to birthdays, holidays, or events.
Percentage Calculator
Three modes: X% of Y, X is what % of Y, and percentage change between two numbers.
Tip Calculator
Split the bill with friends. Enter the total, tip %, and number of people.
Word Counter
Count words, characters, sentences, and paragraphs in any text. Free and instant.