vixutil — free everyday tools

Calculators

Health, money, dates and developer tools

Unit Converter

Length, weight, temperature, area and more

Checklists

Moving, travel, interviews, camping, weddings

Personality Tests

Social battery, stress, decisions, work style

Quizzes

Capitals, science, history, tech, film

Name Generators

Fantasy, sci-fi, superhero, villain names

Random Pickers

Wheel, name picker, teams, dice, Secret Santa

Snap Tests

One photo: smile score, symmetry, face reading

Horoscopes

Star signs, Chinese zodiac, tarot, BaZi

Tarot Card Meanings

All 78 cards, upright and reversed, major and minor arcana

Time Tools

Timer, stopwatch, world clock, date maths

Colour Tools

Palette, shades, contrast, CSS gradient

Image Tools

Compress, resize, crop, blur faces

Sound Tools

Metronome, tuner, white noise, tone

Cooking Tools

Cups to grams, oven temp, rice, coffee

Brain Games

Reaction, memory, typing, aim, mental maths

Device Tests

Keyboard, mouse, mic, webcam, dead pixels

Text Tools

Clean up, dedupe, case convert, count

Percent & Rate

Discounts, VAT, percent change, compound interest

Body Metrics

BMI, body fat, BMR, running pace, one-rep max

Craft Calculators

Yarn, fabric, candle wax, soap lye, resin quantities

Geometry

Areas, volumes, Pythagoras, angles

File Extensions

What opens .hwp, .webp, .mkv — 140 extensions and their MIME types

Hold'em Starting Hands

169 starting hands with combinations, odds and flop chances

Chess Openings

174 openings with moves, board diagrams and FEN

Times Tables

Every multiplication fact to 20×20, with divisions and neighbours

Percentages

What X% of Y is, what X% off leaves, and what percent one is of the other

Square Roots

Roots of 1–200 as rounded decimals and exact surds

Roman Numeral Years

Every year from 1900 to 2100, broken into its letters

Year Reference

Leap years, weekdays, week counts and zodiac signs, 1900–2100

px to rem Chart

CSS units for 1–120 px: rem, pt, pc, inches and millimetres

Password Strength

How it is stored changes the answer more than length does

Morse, NATO, Braille

52 characters in three codes, plus all 64 braille cells

CIDR Subnet Table

Mask, address count and usable hosts for every prefix

JavaScript Key Codes

code, key, keyCode and location for 120 keyboard keys

Fraction to Decimal

127 fractions with exact decimals, percentages and equivalents

chmod Permissions

125 modes with rwx, ls -l, umask and who can do what

Public holidays by country

Holiday dates for 71 countries, worked out from the rules rather than copied from a table — so future years are right too.

Country Facts

Capital, currency, plug type, voltage, driving side and emergency numbers for 71 countries.

Port Numbers

127 ports with service, protocol, range and encrypted twin

ASCII Table

All 128 codes with hex, binary, HTML entities and Ctrl keys

Number Reference

Factors, divisors, bases and Roman numerals for every number to 200

Regex Patterns

133 tested expressions, each with matching and non-matching examples

Dice Odds

Every sum from one to six dice, with the ways and the odds

Rubik’s Cube Algorithms

All 119 F2L, OLL and PLL cases with diagrams

Lens Angle of View

What 104 focal length and sensor pairs actually frame

Keyboard Shortcuts

Excel, VS Code, Chrome, Figma — Windows and Mac side by side

Emoji Meanings

What 💀 🙏 😤 actually mean when someone sends them

Terminal Commands

ls, grep, tar, chmod, git reset — flags and examples

HTTP Codes and Headers

What 404, 500 and 132 codes and headers mean

Four-Character Idioms

A hundred Korean idioms with meaning and origin

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