Utilities

Word counter

Words, characters, sentences and reading time instantly.

Unit converter

Length, mass, temperature, volume, area, speed and time.

QR code generator

Create a QR code from a link or text and download it as SVG or PNG.

Password generator

Secure random passwords with a strength meter.

Number base converter

Binary, octal, decimal and hexadecimal instantly.

Slug generator

Turn a title into a clean slug for URLs.

Days between dates calculator

Days, weeks and working days between two dates.

Percentage calculator

Percentage of a number, proportion and change.

Color picker

Convert colors between HEX, RGB and HSL.

Text case converter

Uppercase, lowercase, title case and more.

Base64 encoder

Encode and decode text in Base64.

URL encoder / decoder

Encode and decode text for use in URLs.

UUID generator

Generate unique UUID v4 identifiers.

Hash generator

SHA-1, SHA-256, SHA-384 and SHA-512 hashes.

JSON formatter

Format, minify and validate JSON.

Lorem Ipsum generator

Placeholder text for your mockups.

BMI calculator

Body mass index and healthy weight range.

Age calculator

Your exact age and your next birthday.

Rule of three calculator

Solve direct and inverse proportions.

Roman numerals converter

Convert between Arabic numbers and Roman numerals.

Random number generator

Generate random whole numbers for draws and giveaways.

Add or subtract days calculator

What date it'll be in (or was) X days, months or years.

Decision wheel

Pick at random between your options by spinning the wheel.

Countdown timer

Live countdown to any date and time you choose.

Timer and stopwatch

Countdown timer with an alarm, plus a stopwatch.

Regex tester

Test regular expressions in real time.

JWT decoder

Read the header and payload of a JWT token.

Unix timestamp converter

Convert between a Unix timestamp and a date.

CSV to JSON converter

Convert between CSV and JSON in both directions.

Temperature converter

Celsius, Fahrenheit and Kelvin.

Color palette generator

Harmonious color palettes from a single base color.

Color contrast checker (WCAG)

Contrast ratio and AA/AAA levels.

CSS gradient generator

Build linear and radial CSS gradients and copy the code.

CSS box-shadow generator

Generate and preview CSS shadows.

Px to rem converter

Convert between pixels and rem/em.

CSS border-radius generator

Round corners visually and copy the CSS.

Cron expression generator

Build and describe cron expressions.

HTML entity encoder/decoder

Encode and decode named and numeric HTML entities.

Text diff checker

Differences between two texts, line by line.

Text to binary converter

Convert text to binary and back.

LCM and GCD calculator

Least common multiple and greatest common divisor.

Combinations and permutations calculator

nCr and nPr with exact results.

Mean, median and standard deviation calculator

Descriptive statistics for a list of numbers.

Emoji search

Search and copy emojis by name or keyword.

Image converter

PNG, JPG, WEBP and SVG in your browser.

Fraction to decimal calculator

Convert fractions and decimals.

ISO week number calculator

Week of the year for any date.

Timezone converter

Time in major cities around the world.

Sort list and remove duplicates

Sort lists and remove repeated lines.

Merge PDF

Combine several PDFs into one, in private.

Split PDF

Extract pages from a PDF into a new file.

Rotate PDF

Rotate the pages of a PDF and download it.

Mermaid editor

Diagrams with live preview and SVG download.

Passphrase generator

Secure, easy-to-remember passphrases.

Social media character counter

Check character and word counts against X, Instagram, LinkedIn and SEO limits.

Byte converter

Convert between bytes, KB, MB, GB and TB (base 1024 or 1000).

Kitchen measurements converter

Cups and spoons to grams and ml by ingredient.