Check your current public IP address and network information.
Gauges breakup risk from messaging patterns and behavioural change on a psychological radar.
Find the bedtime or wake time that lands on the end of a 90-minute sleep cycle.
Your age, zodiac animal and star sign gathered into one card.
Profiles your spending personality across 48 types using delivery-fee and stress-purchase patterns.
Convert your dog's age into human years, adjusted for breed size.
A period and ovulation tracker that stores everything on your own device — no sign-up, nothing sent anywhere.
Connect five in a row against the computer.
Estimate the fuel cost of a trip from distance, efficiency and fuel price.
Measure your clicks per second.
Compute AND, OR, XOR, NOT and shifts with the binary result shown visually.
A twelve-stage assessment of your unconscious defence mechanisms and how you survive office politics.
Calculate the final payout on a savings or deposit product including interest.
Hide a short message inside an image-style pixel cipher.
Estimate how long a download takes from file size and connection speed.
A screen-time based diagnosis sorting your attention span into one of thirty prefrontal-cortex profiles.
A five-stage workplace survival game where your stats shift in real time and every decision shortens or extends your corporate lifespan.
Flip a coin with a 3D animation and keep the running statistics.
Put your options on a wheel and let momentum decide.
Virtual mosquitoes buzz in from every edge of the screen — swat as many as you can before time runs out.
Turn attendee salaries and meeting length into the real cost of that meeting.
Guide the snake, eat, grow and avoid your own tail.
Quick link to Binance, the world's largest cryptocurrency exchange.
Analyse the balance of your ego states through a transactional-analysis style test.
Turn any URL or text into a QR code instantly.
Read your innate disposition through the five elements of East Asian philosophy.
An idle delivery-rider simulator: accept live orders, upgrade your gear endlessly and watch the income compound.
Daily physical, emotional and intellectual cycles calculated from your birth date.
Compare level-payment and equal-principal schedules, total interest and monthly outgoings.
Work out percentages, increases, decreases and ratios.
When you just need a decision made for you.
Format, indent and validate JSON in the browser.
Generate strong random passwords with configurable length and character sets.
Visualises the decay curve of lingering attachment and predicts the date of full emotional release.
Measure how resistant a password is to guessing and brute force.
Runs the open IPIP Big Five inventory through a mechanical profiler interface, plotting your five personality vectors on a live radial chart.
See how much purchasing power inflation quietly takes from your money over time.
Enter your job, mental state, overtime and sleep to have them converted into an RPG-style awakened hero stat sheet.
Run your own life as a listed company and watch the share price react to your choices.
Analyses daily screen time and short-form viewing habits to diagnose your current brain-rot level and issue a cyber prescription.
Totals your late-night food, impulse taxis and stress purchases, then prints a verdict on your odds of financial ruin.
Convert between major world currencies quickly.
A simple browser to-do list that keeps your tasks between visits.
The classic logic puzzle — clear the field without hitting a mine.
Calculate your exact age in years, months and days from your birth date.
Generate random lottery number sets instantly.
Pick randomly from a list you enter — fair and unbiased.
Calculate pace from distance and time, with projected 5K, 10K, half and full marathon times.
Percent-encode text for URLs or decode it back, instantly.
Check whether a Korean business registration number passes the official checksum rule.
Live RSI scanner that highlights overbought and oversold coins in real time.
The crypto Fear & Greed index printed like a newspaper front page — read sentiment as contrarian signal.
Work out your average cost per share after averaging down or up, plus the breakeven price and the move needed to recover.
Estimate transaction tax, capital gains tax and net realised profit on domestic and overseas share sales.
A turn-based card-draft roguelike about running a ten-stage stock manipulation operation and managing its risk.
A neumorphic simulator that prices your life story as though it were going public.
A large-scale life simulator where a single choice branches you into an entirely different parallel universe.
An epic destiny simulator in which one lifetime slowly becomes an echo across the universe.
What were you in a previous life? A playful reading of your past-life trade.
A 100-question procedurally generated logic and numerical reasoning assessment.
A 100-stage dilemma-tracking assessment of emotional intelligence.
Count down or up to the dates that matter and share them easily.
Convert clothing and shoe sizes between Korean, US, European and Japanese systems.
Reads the hidden energy in your name, one character at a time.
A twelve-stage archetype assessment of the latent control and villainy hiding in your personality.
Derive lottery numbers from the entropy of your own mouse and touch movement.
The classic ladder draw for assigning outcomes at random.
Draw several numbers from a range with no duplicates, using a Fisher-Yates shuffle.
See what your average price becomes after buying more at a lower price.
Write Markdown with a live side-by-side preview.
Project how an investment grows over time under compounding.
Pass the phone and complete random missions on a hidden 30-to-90 second fuse — whoever holds it at detonation takes the forfeit.
One losing tooth is shuffled among a dozen or more — take turns pressing until the cannon sound and red flash pick the loser.
Build an itemised group settlement styled as a printed receipt, complete with barcode and witty forfeit assignments.
Design a witty digital business card on a retro-game pixel art layout.
Hold your finger on the screen as long as you can — the longer you last, the more satirically your dopamine habits are diagnosed.
A meme generator that turns a minor grievance into a solemn legal decree or traditional royal edict.
Structure focused work blocks and track what you completed.
Modern psychological archetypes revealed through lavish 3D card-flip animations.
Visualise how much of today is left as a battery gauge.
Enter your birth date for your exact legal age, total days lived and a live countdown to your next birthday.
Build and preview color palettes for your design.
Generate binaural tones designed as a background for focused work.
Thirty impossible dilemmas strip your unconscious bare and issue a sixteen-type personality report.
Forty questions across four axes — extraversion, sensing, thinking and judging — to map your natural disposition.
A brutal 1% pull rate under neon lights — burn your entire balance and receive a painfully itemised receipt.
A satirical simulator of trading by hope alone — for stocks and crypto alike.
Build daily routines and keep track of your streak.
Your neighbourhood's recycling collection day countdown, plus a one-second lookup for items you are unsure how to sort.
Blend ambient sounds to mask distraction and hold focus.
Suggests an appropriate wedding or funeral gift amount based on your relationship and circumstances.
Convert text to Base64 and back without leaving your browser.
If you quit right now, how long would your savings last? A second-by-second countdown of your runway.
A guided breathing pacer for calming down or resetting focus.
Look up Unicode characters and their code points.
Plots how long it has been since you last spoke to each person as orbital drift on a radar, alerting you when someone drifts too far.
Diagnoses your current workload and mental fuel reserves to compute the point of system shutdown and the days you have left.
The 2048 sliding puzzle rebuilt with neon beam graphics and satisfying block-fusion effects.
Tracks daily depression and anxiety scores using the established PHQ-9 and GAD-7 scales on a biometric-style dashboard.
A blunter take on spending profiling — 48 types derived from delivery fees and stress-purchase data.
A humorous dopamine meter that reads your social feed habits and appetite for attention.
Compare the opportunity cost of monthly rent against a lump-sum deposit.
Enter your age, hours worked and bank balance to see how brilliantly insignificant you are against 13.8 billion years of cosmic history.
Mixes solo meals, unanswered messages and late-night playlists into your personal cyberpunk loneliness score.
Pick your manager's traits to identify which dungeon boss they are — and get the strategy guide to beat them.
Enter your recent designer, sneaker and gadget purchases for a personal hype score and an asset-erosion report.
Choose the music, films and era you love to generate a custom retro cassette label and a reading of your nostalgia profile.
Chicken or pizza? Settle impossible everyday arguments through a one-on-one knockout tournament.
Scans your name and current emotional frequency to issue a unique neon barcode and an uncomfortably accurate report.
Measure your survival odds in an end-of-world scenario and print a high-resolution sci-fi boarding pass for the escape ship.
Sort the draining people around you into general waste, food waste or bulk disposal — with a clear prescription for each, in retro OS styling.
A tongue-in-cheek diagnosis of how much your portfolio has broken your mental composure.
Scans your stress and load-bearing factors through a structural-engineering lens, diagnoses the cracks and drafts a reinforcement blueprint.
Measures how far your soul has left the building from weekly overtime and manager type, then drafts a suitably drastic resignation letter.
Turn the villains and stress of your daily life into 16-bit dungeon bosses, then get issued the legendary gear and finishing move to beat them.
Analyses the gap between your social mask and inner self as a 1950s Cold War top-secret file, assigning a codename and survival protocol.
Reinterprets your stressful day as a French fine-dining recipe, served with elegant critic-style honesty and a healing order for the soul.
Refines the cheap lead of burnout and daily absurdity into a legendary elixir, complete with an ancient mind-transmutation formula.
Converts a chaotic day into fighter-jet flight logs and turbulence data, issuing a master caution level and an autopilot recovery protocol.
Translates daily pressure and workload into external water pressure and sonar contacts, diagnosing hull deformation and prescribing a silent running protocol.
Maps peak stress onto reactor thermal output and core temperature, diagnoses control rod friction and issues a meltdown-prevention protocol.
Quick link to Bithumb, a major Korean cryptocurrency exchange.
Count characters, words, sentences and bytes as you type.
A countdown timer and alarm that stays accurate even in a background tab.
Calculate body mass index from height and weight and see the standard ranges.
Split a list of people into balanced random teams.
Play rock paper scissors against the computer, with win-loss records and streaks saved locally.
Measure how fast you respond to a visual cue.
Measure your typing speed and accuracy.
Deduce the hidden number from strike and ball hints.
Flip cards and match the pairs from memory.
Guess the word from its Korean initial consonants alone — build a score and a correct-answer streak with hints.
Generate harmonious color schemes from a base color.
Calculate net monthly pay from gross annual salary after tax and insurance deductions.
Solve sudoku puzzles across multiple difficulty levels.
A light-hearted fortune for today, consistent for the whole day.
Hit the moles as fast as they appear.
Convert between a lump-sum housing deposit and an equivalent monthly rent.
Roll any number of dice with any number of sides.
Estimate daily calorie needs from your body metrics and activity level.
Play tic-tac-toe against an AI with selectable difficulty.
Convert colors between HEX, RGB, HSL and other formats.
Estimate the due date and current week of pregnancy.
Bounce the ball and clear every brick.
Calculate grade point average from course credits and grades.
A distraction-free notepad that saves to your browser automatically.
Find the greatest common divisor and least common multiple of any numbers.
Convert between Roman numerals and Arabic numbers.
Drill multiplication tables with instant feedback.
Work out hourly, daily, monthly and annual pay from any one of them.
See current times across major cities and the offset from your own.
Test regular expressions against sample text with live match highlighting.
Switch text between upper, lower, title, camel and snake case.
Find your zodiac animal and star sign from your birth date.
Solve as many arithmetic problems as you can against the clock.
Convert cups, tablespoons, teaspoons, millilitres and litres for recipes.
Play blackjack against the dealer — hit or stand to reach 21.
Repeat an ever-longer sequence of colors from memory.
Drop discs and connect four in a row before the computer does.
Paste text to see which words appear most often, ranked by count.
Find the precise age gap between two people from their birth dates.
Calculate change owed and break it into the fewest notes and coins.
Flip English text into upside-down Unicode characters.
Check instantly whether a phrase reads the same backwards.
Enter pins per frame and get the correct score including strikes and spares.
Add today's drinks to total your caffeine intake against daily guidance.
Convert between binary, octal, decimal and hexadecimal at once.
Convert instantly between Celsius, Fahrenheit and Kelvin.
Calculate area and perimeter for circles, squares, rectangles, triangles and trapezoids.
Convert bits, bytes, KB, MB, GB, TB and PB in one place.
Convert km/h, m/s, mph and knots in one place.
A short motivational line for today, plus more at the press of a button.
Enter who paid what and get the fewest transfers needed to settle up fairly.
A configurable prep, work and rest interval timer for circuit and Tabata training.
Shuffle entrants into a tournament bracket with byes assigned automatically.
Translate text to Morse code and back, with audio playback.
Compare two texts line by line and see exactly what was added or removed.
Total up work hours across days from clock-in, clock-out and break times, including overnight shifts.
Convert grams, kilograms, pounds and ounces alongside traditional Korean units.
Convert a numeric amount into the formal Korean written form used on contracts and cheques.
Track BTC, ETH and altcoin market dominance shifting in real time.
Watch live futures liquidations as they cascade, with a fear gauge.
Real-time candlestick pattern detection to catch entry and exit timing.
Live prices, charts and technical indicators in one large, readable analysis dashboard.
Which coin is moving right now? Live heatmap, breakout radar and capital flow on one screen.
Big, high-contrast charts with live whale flow signals — readable at a glance.
Live exchange API feed tracking large-capital moves on a neon signal board.
A medical-monitor interface diagnosing coin health via RSI, MACD and Bollinger Bands.
Live crypto vital signs — an ECG-style pulse chart for BTC, ETH and XRP with price, volume, RSI and MACD.
Hidden links between coins drawn as a nebula — spot portfolio risk through live correlation networks.
Live price gap between Korean and global exchanges, calculated as a premium or reverse premium.
Is buying or selling stronger right now? Live order book pressure, taker buy ratio and market depth.
Beyond price — volume, momentum, volatility and trend on a six-axis radar health scanner.
Accumulation or euphoria? Locate the current market phase using halving cycles and live indicators.
Track on-chain whale wallet movements to read where large capital is heading.
Live websocket candlestick charting with RSI, MACD, Bollinger Bands and volume in one pro station.
Calculate gross and after-tax dividend income, dividend yield and yield on cost from your holdings.
Estimate fair value from EPS, BPS, sector P/E and ROE, then compare it against the current market price.