Free tools that run in your browser
Length, weight, temperature, area and more
Moving, travel, interviews, camping, weddings
Social battery, stress, decisions, work style
Capitals, science, history, tech, film
Fantasy, sci-fi, superhero, villain names
Wheel, name picker, teams, dice, Secret Santa
One photo: smile score, symmetry, face reading
Star signs, Chinese zodiac, tarot, BaZi
All 78 cards, upright and reversed, major and minor arcana
Timer, stopwatch, world clock, date maths
Palette, shades, contrast, CSS gradient
Compress, resize, crop, blur faces
Metronome, tuner, white noise, tone
Cups to grams, oven temp, rice, coffee
Reaction, memory, typing, aim, mental maths
Keyboard, mouse, mic, webcam, dead pixels
Clean up, dedupe, case convert, count
Discounts, VAT, percent change, compound interest
BMI, body fat, BMR, running pace, one-rep max
Areas, volumes, Pythagoras, angles
Time difference, plugs, dialling codes, currency
Type the stations of 30 lines from Seoul to São Paulo
What opens .hwp, .webp, .mkv — 140 extensions and their MIME types
169 starting hands with combinations, odds and flop chances
174 openings with moves, board diagrams and FEN
All 118 elements with symbols, weights and electron configurations
133 tested expressions, each with matching and non-matching examples
Every sum from one to six dice, with the ways and the odds
All 119 F2L, OLL and PLL cases with diagrams
What 104 focal length and sensor pairs actually frame
What 404, 500 and 132 codes and headers mean
What 154 properties do, their values and whether they inherit
What 126 tags do, whether they close, and their attributes
Notes of 135 chords, scales and intervals, with sound
A hundred Korean idioms with meaning and origin
Everything here runs in your browser. Nothing is uploaded, nothing needs an account.