AI & content
AI Hook Generator
Punchy opening hooks for any topic.
50 tools · free to use · no account needed
All One Calculators
All calculators. One place. Free calculators, formatters, generators, and converters for your everyday tasks.
The toolbox 50 tools
AI & content
AI YouTube Title Generator
High-CTR titles in seconds.
Developer
JSON Formatter
Beautify, validate and minify JSON.
Everyday
Password Generator
Strong, customizable passwords.
Everyday
QR Code Generator
Turn any text or URL into a QR.
Text & writing
Text Case Converter
UPPER, lower, Title, camelCase…
Text & writing
Word Counter
Words, characters & read time.
Everyday
Age Calculator
Years, months, days & more.
Developer
Base64 Encoder
Encode and decode Base64.
Converters
Timestamp Converter
Unix ↔ human readable date.
Text & writing
Lorem Ipsum
Generate placeholder text.
Converters
Unit Converter
Length, weight, temperature.
Converters
Color Converter
HEX ↔ RGB ↔ HSL preview.
Everyday
Percentage Calculator
Percent of, percent change & more.
Everyday
BMI Calculator
Body mass index, metric or imperial.
Everyday
Tip Calculator
Tip, total & split the bill.
Everyday
Loan Calculator
Monthly payments & total interest.
Everyday
Random Number Generator
Random numbers in any range.
Everyday
Dice Roller
Roll d4 to d20 dice online.
Everyday
Stopwatch
Precise stopwatch with laps.
Everyday
Countdown Timer
Set minutes and count down.
Text & writing
Markdown Preview
Write markdown, see it rendered.
Text & writing
Slug Generator
URL-friendly slugs from titles.
Developer
UUID Generator
Bulk v4 UUIDs, one click.
Developer
URL Encoder
Percent-encode & decode URLs.
Everyday
Discount Calculator
Sale price & savings from a % off.
Everyday
Date Difference
Days, weeks & months between dates.
Everyday
Fuel Cost Calculator
Trip fuel use and total cost.
Converters
Roman Numerals
Convert numbers ↔ Roman numerals.
Converters
Number Base Converter
Decimal, binary, octal & hex.
Converters
Data Size Converter
Bytes, KB, MB, GB & TB.
Developer
Hash Generator
SHA-1, SHA-256 & SHA-512 hashes.
Developer
HTML Encoder
Escape & unescape HTML entities.
Developer
JSON ↔ CSV
Convert between JSON and CSV.
Text & writing
Remove Duplicate Lines
Deduplicate lists line by line.
Text & writing
Text Reverser
Reverse characters, words or lines.
Text & writing
Palindrome Checker
Does it read the same backwards?
Everyday
Compound Interest Calculator
Annual growth and interest earned.
Everyday
Savings Goal Calculator
Months needed to reach your target.
Everyday
Sales Tax Calculator
Tax amount and price including tax.
Everyday
Profit Margin Calculator
Profit, margin and markup compared.
Everyday
Break-Even Calculator
Units needed to cover your costs.
Everyday
Speed Calculator
Average speed from distance and time.
Everyday
Running Pace Calculator
Minutes per kilometer and speed.
Everyday
Rectangle Area Calculator
Area and perimeter from dimensions.
Everyday
Box Volume Calculator
Cubic meters and capacity in liters.
Everyday
Fraction Calculator
Add two fractions and simplify.
Everyday
GCD & LCM Calculator
Common divisors and multiples.
Text & writing
Text Line Sorter
Sort lists alphabetically or in reverse.
Text & writing
Whitespace Cleaner
Trim spaces and tidy blank lines.