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Key facts about the Binance exchange, how the sign-up flow works, and what to check before you start.

Analyse the balance of your ego states through a transactional-analysis style test.

An independent guide to the OKX exchange: key facts, how the sign-up flow works, and what to watch for with deposits and security.

Turn a URL or short text into a QR code in your browser and download it as PNG. No sign-up, and nothing you type is sent to a server.

See the IP address and network details you are connecting from — IPv4, IPv6 and connection info, instantly and free.

Thirty questions measure three five-element energies, Wood-Fire, Earth-Metal and Water, and place you in one of 27 destiny types.

A screen-time based diagnosis sorting your attention span into one of thirty prefrontal-cortex profiles.

Enter monthly income and spending to get a cash-flow report that diagnoses how stretched your finances really are.

A five-stage workplace survival game where your stats shift in real time and every decision shortens or extends your corporate lifespan.

An idle delivery-rider simulator: accept live orders, upgrade your gear endlessly and watch the income compound.

Run a pump syndicate for 10 turns: draft dirty-trick cards to lift a fictional stock and cash out before regulator risk hits 100. A market manipulation satire.

Take 'you' public: answer four questions on learning, crisis, money and strengths as made-up institutions trade on your answers. Starts at $5M; three grades.

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? Twenty-four questions on two axes assign you one of nine playful past-life trades.

A 100-question puzzle game of number sequences and operation rules, generated on the fly. It shows your correct answers and accuracy, not a real IQ.

Pick your reaction to 100 situations and get one of 16 emotional styles from two axes, emotion regulation and empathy. A game, not a validated EQ test.

A period and ovulation tracker that stores everything on your own device — no sign-up, nothing sent anywhere.

Enter a target or start date to see D-N, D-Day or D+N, today's day count and milestone dates such as day 100, day 1,000 and anniversaries.

Convert centimetres and inches both ways. Read inch sizes on screens, overseas shop size charts, furniture and tyres straight in cm.

Enter your birth date and get your legal age, Chinese zodiac animal and star sign on one card. Quick to check for profiles or family birthdays.

The classic Korean schoolyard name-compatibility game: write two names syllable by syllable, add up the strokes and boil them down to a two-digit number. It also shows the sound-based Five Elements of each name, following the 1446 Hunminjeongeum Haerye. Every step of the pyramid is on screen, and you can send friends a link that carries only the numbers.

A twelve-stage archetype assessment of the latent control and villainy hiding in your personality.

Pick your reaction to 12 office situations — meetings, overtime, reviews, gossip — and get one of 16 four-letter office survival archetypes. A playful test to compare with coworkers.

Move your mouse or finger over a pad and 120 points of your own movement seed the shuffle that draws six lotto numbers from 1 to 45, instead of a computer's random generator.

Daily physical, emotional and intellectual cycles calculated from your birth date.

Enter 2 to 6 names and outcomes, generate a random ladder and tap a name to watch the line drop to its result. For coffee bets, lunch picks and chore duty.

Press the button and a coin spins in 3D before landing heads or tails at exactly 50:50. Running counts and percentages show how the odds play out over time.

Draw several numbers from a range with no duplicates, using a Fisher-Yates shuffle.

See what a fixed deposit or installment savings account pays at maturity: pre-tax interest, interest income tax and the after-tax payout, with standard, tax-favoured or tax-free options.

Enter your current average price and quantity plus the price and size of an extra buy to see the new average cost, total position, total invested and how much the average moves — for stocks and crypto.

Type Markdown on the left and see it rendered live on the right, with tables, checkboxes and highlighted code. Export the result as a styled HTML file.

Compare level-payment and equal-principal schedules, total interest and monthly outgoings.

Enter a starting amount, regular contributions, expected return and years to see how compounding grows your money, with principal and gains charted.

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.

Type your options separated by commas, flick the wheel and let it spin down under friction until the pointer picks one. For menus, penalties and turn order.

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.

Virtual mosquitoes buzz in from every edge of the screen — swat as many as you can before time runs out.

Pick your first reaction to twelve stressful situations and get one of sixteen unconscious defence-mechanism types. No sign-up, about a minute.

Pick today, love, work or yes/no and draw one or three cards (past, present, future) from the 22 Major Arcana for upright and reversed readings. Share the link.

Answer 21 A-or-B dating scenarios and get one of 8 love styles on three axes: expression (direct or subtle), closeness (together or independent) and conflict (talk now or cool down). Send the link to your partner or a friend and see how many answers you share.

See what percentage of today has already passed and how many hours remain, drawn as a big phone-style battery gauge that updates in real time.

What is B% of A, what percent of B is A, and the percent change from A to B, shown in large type as you type. For discounts, shares and growth rates.

Enter your birth date for your exact legal age, total days lived and a live countdown to your next birthday.

Tap anywhere on the color wheel to read that color's HEX and RGB codes and copy them with one click. Handy for web and app design and CSS colors.

Press the button, watch the display spin for 0.6 seconds and land on YES or NO at 50:50 with a one-line comment. For small decisions you keep putting off.

Paste minified JSON to indent it instantly, and get the exact location of any syntax error. A quick check for API responses and config files.

Generate strong random passwords with configurable length and character sets.

Estimate the fuel cost of a trip from distance, efficiency and fuel price.

Plays 200 Hz in one ear and 200 + 1 to 30 Hz in the other so you hear the difference as a binaural beat. Pick delta, theta, alpha or beta. Headphones needed.

Answer 30 either-or questions on travel, love, money and food to get one of 8 types on two axes, plus best and worst matches. Dare a friend to compare answers.

Forty questions on four axes give one of 16 personality types, with a profile page for each, a compatibility checker and a link to test your friends.

A brutal 1% pull rate under neon lights — burn your entire balance and receive a painfully itemised receipt.

A satire game: your 100× long slides toward liquidation on a made-up chart. Spam prayers, average down and cry to see how many seconds you can survive.

Tick off daily supplements and habits on a calendar and keep your streak going. Everything is stored in your browser, with no account required.

Your neighbourhood's recycling collection day countdown, plus a one-second lookup for items you are unsure how to sort.

Blend rain, café chatter, wind and keyboard sounds with sliders into your own white noise. The browser synthesises the audio, so it never loops or cuts out.

Step-by-step removal for 47 stains on clothes and around the home (sofas, mattresses, sneakers…) plus fixes for 10 laundry problems (dye transfer, smelly towels, yellowed whites) — coffee, wine, blood, ink, lipstick, yellow sweat, sunscreen, rust, mildew and more — with methods for whites, colors and wool/silk, what not to do, and how to treat dried stains.

Suggests an appropriate wedding or funeral gift amount based on your relationship and circumstances.

Encode text to Base64 or decode a Base64 string back to text, with full UTF-8 support. Results and byte counts update as you type, entirely in your browser.

If you quit right now, how long would your savings last? A second-by-second countdown of your runway.

Guided box breathing: inhale 4 s, hold 4 s, exhale 4 s, hold 4 s, traced by a neon path with a countdown. One to three minutes before a talk or before sleep.

Visualises the decay curve of lingering attachment and predicts the date of full emotional release.

Pick and copy special symbols for social profiles and gamer tags, and convert letters and digits into Unicode math styles such as sans-serif and Fraktur.

Hide a secret message inside an ordinary-looking sentence using zero-width Unicode characters, then reveal it with the decoder. Text steganography for fun.

See a password's entropy from its length and character mix, how long a brute-force attack would take, and a strength grade. Nothing leaves your browser.

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.

Twenty items written in the style of the open IPIP item pool score the Big Five traits and plot them on a live radar chart. A self-check, not a validated test.

Tracks daily depression and anxiety scores using the established PHQ-9 and GAD-7 scales on a biometric-style dashboard.

Rate five spending habits such as delivery, taxis and impulse buys from 0 to 10, and get a satirical spending type and risk % from the total and your top habit.

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.

See how much purchasing power inflation quietly takes from your money over time.

Turn attendee salaries and meeting length into the real cost of that meeting.

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.

Enter your job, mental state, overtime and sleep to have them converted into an RPG-style awakened hero stat sheet.

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.

Take your life public: age, job, housing and six life stats set your share price, then 10 rounds of random life-event cards move the chart and market cap.

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, printed as a disposal sticker.

Pick your trading style, asset and current return to get a satirical terminal report on your hopium rate, mental grade and a joke prescription. Not advice.

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.

Analyses daily screen time and short-form viewing habits to diagnose your current brain-rot level and issue a cyber prescription.

Reinterprets your stressful day as a French fine-dining recipe, served with elegant critic-style honesty and a healing order for the soul.

Totals your late-night food, impulse taxis and stress purchases, then prints a verdict on your odds of financial ruin.

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.

Key facts about the Bithumb exchange, the sign-up flow including the verified bank account requirement, and what to check first.

Count characters with and without spaces, words, sentences and bytes as you type. Useful for essays, social posts and forms with strict length limits.

A countdown timer and alarm that stays accurate even in a background tab.

Enter height and weight to get your BMI, the weight category it falls in, your standard weight and how far you are from it — on a gauge from BMI 15 to 40.

Enter names and the number of teams, and get a fair random split. Made for classes, meetups and company dinners where nobody wants to pick sides.

Play rock paper scissors against the computer, with win-loss records and streaks saved locally.

Wait for the screen to change color, click as fast as you can, and see your reaction time in milliseconds. Your best result is saved to compare with friends.

Measure your typing speed and accuracy in the browser with no installation. Results show characters per minute and error rate so you can track progress.

Convert Korean won, US dollars, yen, euros, yuan and other major currencies at live exchange rates. Useful for trip budgets and checking overseas payments.

Guess the computer's secret 4-digit number with distinct digits using strike and ball hints. The game counts attempts and keeps a log of every guess.

A simple to-do list that saves to your browser, so your tasks are still there next visit. No account, no sync, just a quick place to manage today.

The classic logic puzzle in your browser: clear every safe cell without hitting a mine. Choose a difficulty, race the timer and flag suspected mines.

Flip cards two at a time and match the pairs from memory. Try to finish in the fewest moves and the shortest time, right in your browser.

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, including complementary, analogous and triadic sets, and copy any HEX code with a click.

Enter a date of birth to get international age, Korean counting age and year age at once, plus days since birth and days to your next birthday.

Generate fully random Korean lotto number sets from 1 to 45, as many games as you want at once. Free, instant and unbiased.

Enter names or items and draw one or several winners at random with equal odds. Good for picking teams, prize winners or who goes first.

Korean take-home pay from your annual salary: national pension, health, long-term care and employment insurance plus income tax are deducted at 2026 rates, item by item.

Play sudoku in your browser with several difficulty levels, automatic mistake checking and a timer. No installation needed, free to play.

Enter your birth date for today's reading by Korean zodiac animal and star sign: overall, love, money, work, health, lucky color and number. Send a friend a link to compare your zodiac and star sign compatibility.

Click as fast as you can for a fixed time and see your CPS (clicks per second). Beat your personal best and compare with friends.

Whack as many moles as you can before the timer runs out. A quick browser arcade game with no installation and a high score to chase.

Convert between a lump-sum housing deposit and an equivalent monthly rent.

Roll any number of dice with any number of sides, from a single six-sided die to a handful of d20s. Ready for board games and tabletop RPGs.

Estimate your basal metabolic rate and daily calorie needs from age, sex, height, weight and activity level, with targets for losing, keeping or gaining weight.

Steer the snake, eat to grow and avoid your own tail. Control it with arrow keys or touch and chase your high score in the browser.

Play tic-tac-toe against the computer on easy, normal or hard. Hard uses minimax search, so it never loses. Free, with no installation.

Convert color codes between HEX, RGB and HSL and copy the result with one click. Handy for CSS work and design handoffs.

Enter the first day of your last period to see your current week of pregnancy and estimated due date, calculated instantly in your browser.

Move the paddle with mouse or touch, bounce the ball and clear every brick. A free arcade classic that runs in the browser with no installation.

Enter credits and grades for each course to get your grade point average on a 4.5, 4.3 or 4.0 scale, with pass courses left out of the average.

A distraction-free notepad that autosaves to your browser. Counts characters and lets you download your text as a file. No account needed.

Enter two whole numbers to get their greatest common divisor (GCD) and least common multiple (LCM), with each step of the Euclidean algorithm shown — handy for fractions and homework checks.

Convert Arabic numbers from 1 to 3999 into Roman numerals and back. Useful for clock faces, film copyright years and chapter numbers.

Practise multiplication tables with instant feedback. Choose which tables to drill and keep score with a streak counter.

Enter an hourly wage, hours per day and days per month to get daily, weekly and monthly pay. A quick estimate for part-time and hourly work.

See the current time in Seoul, New York, London, Tokyo and other major cities with each city's offset from Seoul, updated automatically for daylight saving.

Test regular expressions against sample text with live match highlighting.

Switch English text between UPPER, lower, Title, camelCase and snake_case instantly. Useful for code identifiers and headlines.

Enter your birth year and birthday to find your Chinese zodiac animal on the Lunar New Year basis, the year's sexagenary name and the next year that shares your sign.

Solve as many arithmetic problems as you can before the clock runs out. Pick the difficulty and operations you want to practise.

Convert cups, tablespoons, teaspoons, millilitres and litres for recipes.

Play blackjack against the dealer: hit or stand to get as close to 21 as you can without going bust. Free and in the browser.

Watch the color sequence, repeat it, and see how long a pattern you can hold in memory as it grows each round.

Drop discs into the grid and connect four in a row horizontally, vertically or diagonally before the computer does.

Calculate pace from distance and time, with projected 5K, 10K, half and full marathon times.

Paste any text to see which words appear most often, ranked by count. Useful for editing, keyword checks and language study.

Enter two birth dates to get the exact age gap in years, months and days, and whether you share a Chinese zodiac sign.

Enter the amount due and the cash received to get the change owed, broken down into the fewest notes and coins.

Flip English text into upside-down Unicode characters you can paste anywhere. A fun trick for social profiles and messages.

Check instantly whether a phrase reads the same backwards, ignoring spaces and punctuation, and find the longest palindrome inside it.

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 in one place. Handy for programming and computer science homework.

Convert between Celsius, Fahrenheit and Kelvin: enter one value and see all three at once. For weather abroad, cooking and science.

Play free-style gomoku against the computer on a 13×13 board. Connect five in a row horizontally, vertically or diagonally to win.

Compute AND, OR, XOR, NOT and shifts with the binary result shown visually.

Percent-encode text for use in URLs, or decode an encoded string back to readable text, instantly in your browser.

Calculate area and perimeter for circles, squares, rectangles, triangles and trapezoids.

Convert bits, bytes, KB, MB, GB, TB and PB in one place, so you can read download sizes and storage specs in the unit you want.

Convert km/h, m/s, mph and knots in one place. Read foreign road signs, ship and aircraft speeds or physics problems in a familiar unit.

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.

Estimate how long a download takes from file size and connection speed.

Translate text to Morse code and back, then play it as audio. Useful for learning Morse or decoding a message.

Compare two texts line by line and see exactly what was added or removed.

Find the bedtime or wake time that lands on the end of a 90-minute sleep cycle.

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 your dog's age into human years with a size-based estimate and the DNA-methylation research formula for Labradors, instead of the 'times seven' myth.

Convert a numeric amount into the formal Korean written form used on contracts and cheques.

Check whether a Korean business registration number passes the official checksum rule.

Live RSI scanner for Binance's top 20 or 40 coins, from 1-minute to daily candles, with a radar, heatmap, multi-timeframe RSI and a per-coin track record.

Bitcoin, Ethereum and altcoin market-cap dominance from CoinGecko as a donut, bars and treemap, plus BTC dominance ex-stablecoins, alts beating BTC and ETH/BTC.

Live Binance and OKX futures liquidations: 5-minute intensity, a heatmap by coin, per-minute flow, ranking, log and liquidation points on any coin chart.

Scans Bithumb KRW and Binance USDT candles for 15 candlestick patterns on closed bars, shows each rule and compares what price did next with a baseline.

Live Bithumb KRW-market dashboard in large type: price, 1-minute to weekly candles, order book, trades, RSI, MACD and a five-rule summary with its track record.

Every coin on Bithumb's KRW market, refreshed every 6 seconds: a turnover-sized heatmap, a movement radar, breadth, spike alerts and watchlist sparklines.

Replay real past Samsung, Bitcoin and Ethereum prices one bar per second in large type, with a plain note on each bar about moving averages, RSI and volume.

Live Upbit KRW prices for BTC, ETH, XRP and SOL in large type, with 1m–1W charts (MAs, Bollinger Bands, RSI), real large trades, trade flow and order book.

RSI, MACD, Bollinger width and 24h change for six coins in one 0–100 health index, with Bithumb KRW price, order book, a live trade ECG and a track record.

The crypto Fear & Greed Index as a newspaper: today's reading, its history since 2018, how Bitcoin moved after each band, live prices, RSI and MACD.

Live Bithumb trades for BTC, ETH, XRP, SOL and DOGE swept like an ECG, with KRW price, RSI, MACD, Bollinger Bands, order book, trade list and price alarms.

Live constellation of how closely Binance coins move together: return correlations over 1–90 days, change vs the prior window and effective diversification.

Live Kimchi premium per coin on Bithumb and Upbit vs Binance, at the USD/KRW rate or USDT/KRW, with 24H–200D history, Tether premium and transfer status.

Binance order book and trades as a live auction: bid vs ask pressure (10–500 levels), taker buy share, depth chart, order walls and large fills in USDT or KRW.

Live six-axis health scanner for top coins: volume, momentum, volatility, trend strength, RSI health and activity, with radar, heatmap and 3-day history.

Accumulation or euphoria? Locate the current market phase using halving cycles and live indicators.

Collects large Binance futures and spot trades ($200K+ by default) live and shows whale buy/sell counts, amounts, net buying and volume share for six coins.

Live Binance candles with MAs, Bollinger Bands, Supertrend, RSI, MACD and Stoch RSI, a top-20 order book, and RSI-Bollinger signals with their track record.

Work out your average cost per share after averaging down or up, plus the breakeven price and the move needed to recover.

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 price.

Estimate securities transaction tax and capital gains tax when selling Korean and overseas shares. Rates show their basis year and can be edited; dividend tax is in the separate dividend calculator.

Resize photos and shrink file size entirely in your browser, then save as JPEG, PNG or WebP. Nothing is uploaded.

Estimate severance pay from employment dates and recent wages using the standard average-wage formula.

Work out how many paid leave days you have earned, year by year, from your start date.

Estimate a Korean residential electricity bill from monthly kWh, including progressive tiers, climate levy, VAT and the power industry fund.

Convert Unix epoch timestamps to human-readable dates and back. Seconds or milliseconds, UTC and local time, ISO 8601 — all at once, in your browser.

Check the contrast ratio between text and background against WCAG AA and AAA, preview it on real text, and nudge the colour until it passes.

Estimate Korea's jobseeker's allowance from your pre-departure wage, age and insured employment period — daily benefit, eligible days and total payout.

Calculate Korea's apartment subscription priority score (out of 84) from years without owning a home, dependants and subscription account tenure.

Calculate your Debt Service Ratio (DSR) from annual income and existing plus new loan terms, and see how it sits against common Korean bank lending limits.

Enter a lottery prize to see the withholding tax (tax-free under 2M KRW, 22% up to 300M, 33% on the excess) and your actual take-home amount.

Paste your text or enter a word/character count to estimate reading time and speaking time based on average reading speeds.

Enter the weight you lifted and the reps to estimate your one-rep max with several standard formulas, plus a percentage-based training weight table.

Pick your body weight, activity level and goal to get a daily protein range based on published sports-nutrition guidance, split across meals.

Enter your enlistment date and branch to get the discharge date, days remaining and how far through the service period you are.

One hundred cards on first aid, money, safety, psychology, health and rights, one idea each, half a minute to read. Swipe through them like shorts.

Sixty long-form pieces on the scientific method, probability, cooperation, institutions and evolution. Written to be read slowly, one at a time.

Finds the recent swing high and low on a Binance chart, draws the 23.6-78.6% retracements and 127.2/161.8% extensions, and shows which zone price sits in.

Live Ichimoku Cloud on Binance candles with Sanyaku Kouten and Gyakuten checks, the cloud 25 bars ahead, cloud twists and a scanner of the top 30 coins.

Pick a coin, timeframe and range to see a live volume profile from Binance candles: POC, value area (VAH/VAL), nearest volume nodes and low-volume gaps.

Finds support and resistance zones where swing highs and lows cluster on Binance charts, with daily, weekly and monthly pivots and the nearest levels.

Scans the top 40 Binance coins for Bollinger Band squeezes (15m–1D): TTM ON or fired, 120-bar bandwidth percentile, squeeze length and momentum.

Find recent golden and death crosses across the top 50 Binance coins. Choose 50/200 SMA, 20/60 EMA, 9/21 EMA or MACD to see cross dates, gaps and charts.

Pick a coin and timeframe to see confirmed regular and hidden RSI divergences on live Binance charts, plus a scanner of the top 30 coins for new signals.

Trend scores from −3 to +3 (EMA20/EMA50) for the top 20 Binance coins on 15m, 1H, 4H, daily and weekly charts in one table. Click any cell for its chart.

Live Supertrend (ATR 10, factor 3 by default) on Binance candles: bullish and bearish flips, stop distance, flip history, stats and a top-30 flip scanner.

Scans the top 80 Binance coins on 5m, 15m or 1H and ranks them by last closed bar volume vs the 20-bar average, with taker buy share and spike alerts.

Live funding rates for the top 100 Binance perpetuals in 8h, daily and APR terms, with crowded-long flags, countdowns, history and a payment calculator.

Chart Binance futures long/short ratios, top-trader positioning, open interest and taker flow against price, read as new longs or short covering.

Exact Binance isolated liquidation price from entry, leverage and margin, plus its distance, break-even with fees, ROE at target and risk-based sizing.

Replay dollar-cost averaging on real Binance daily prices: invested, average cost, value, return, max drawdown, IRR and DCA vs lump sum for any coin.

Pick a coin, timeframe and period to backtest six rules (MA cross, RSI, Bollinger, MACD, Supertrend, Donchian) on real Binance candles vs buy and hold.

Pick BTC, ETH or any Binance coin for a year-by-month returns heatmap with mean, median and % up, this month vs past years, and weekday and hourly stats.

Live Binance BTCUSDT data: 200-week moving average, Mayer Multiple, Pi Cycle Top and drawdown on a log chart, plus days since halving vs the 2020 cycle.

See 80 bars of a real historical Binance chart with the coin and dates hidden, guess higher or lower 10 bars later, and compare your streak with luck.

Live buy and sell signals from 26 indicators on Binance data, each with its rule and value, plus the rating's past track record. Not investment advice.

Buy, neutral and sell signals from 26 indicators on Korean, US and Japanese stocks, each with its rule, value and track record. Yahoo Finance data. Not advice.

36 markets at once: KOSPI, S&P 500 and other indices, FX, gold, oil, US yields, VIX and Bitcoin, with returns and 52-week range. Yahoo Finance data. Not advice.

Compare up to 5 stocks, ETFs or indices: returns rebased to 100, CAGR, volatility, drawdown, Sharpe, beta, correlation. Yahoo Finance data, not advice.

Pick an index or stock for a year-by-month returns heatmap, how often each month rose, weekday effects and a Sell in May check. Yahoo Finance data, not advice.

Pick a stock and backtest MA cross, RSI, MACD and 3 more rules on real Korean, US and Japanese prices (Yahoo Finance), dividends and tax included. Not advice.

Replay monthly or weekly buys of a stock or ETF on real Yahoo Finance prices: total invested, value, return, IRR and max drawdown vs a lump sum. Not advice.

Scans 50 Korean and 50 US large caps: day change, 1M return, RSI, MA stack, 52-week high gap, volume and crosses. Yahoo Finance data, not investment advice.

Drawdowns of the S&P 500, KOSPI, Nikkei or any stock from full daily data: past declines, recovery times and returns a year later. Yahoo Finance, not advice.

1D to 1Y returns of 11 US and 14 Korean sector ETFs on a color grid, with excess return vs the S&P 500 or KOSPI. Yahoo Finance data; not investment advice.

Up to 9 live Binance candle charts on one screen, each with its own coin, timeframe, EMA, Bollinger, volume and RSI(14), via WebSocket. Not investment advice.

Up to 9 stock and index candle charts on one screen, each with its own timeframe, EMA, Bollinger, volume and RSI(14). Delayed Yahoo Finance data. Not advice.

Live prices, change and RSI(14) for up to 20 coins from Binance, Upbit or Bithumb, with price, fast-move and RSI alerts. Browser-only, nothing sent to a server. Not advice.

Read the Korean Revised Version and the King James Version side by side, verse by verse, with Hangul pronunciation for every English word. Sequential audio in both languages, repeat and A-B loops, and spaced-repetition memory cards. Russian, French and Arabic versions to compare too.

Enter your child's birth date to see their age in months, upcoming vaccines and health checkups, and what matters now for growth, feeding, sleep and safety. Stage guides from pregnancy to age 12, plus fever and emergency basics.

Read all 114 surahs and 6,236 verses of the Quran with the Arabic text beside English and Korean, verse by verse. The translation is an unofficial meaning translation made afresh from the Arabic (Tanzil text). Search in English, Korean or Arabic.

Prepare for Korea's driver's license written test with original practice questions and explanations, plus guides to license types, the full process, the skills and road tests, penalty points, drunk-driving rules, school zones and what to do after an accident.

Read and search the full current text of Korean statutes (Civil Act, Criminal Act, Labor Standards Act…), one article per page, in the original Korean.

Trade a virtual 10,000 USDT on live Binance prices: spot and futures with leverage and liquidation price, market, limit, stop-loss and take-profit orders, and fees. Your trades and equity curve stay on this device. No real money. Not investment advice.

Pin the coins you follow and see live prices from Binance, Upbit or Bithumb, change, mini charts and RSI badges on one screen. Full-screen TV mode for a second monitor; your list is saved on this device. Not investment advice.

Pick a random stretch of real Binance history, hide the future, and step forward one candle at a time while you buy and sell. At the end, compare your result with simply holding; your records stay on this device. Not investment advice.

Log real trades with your reason, stop, target and emotions. Open positions are valued at live prices, and closed trades build your win rate, payoff ratio and mistake-type stats. Data stays on this device. Not investment advice.

Pin the stocks you follow — US stocks and indices, plus Korean names like Samsung Electronics and SK hynix — and see prices, changes and mini charts on one screen. Full-screen TV mode; your list stays on this device. Prices may be delayed. Not investment advice.

Buy and sell US stocks and Korean names like Samsung Electronics and SK hynix with virtual KRW and USD. Orders fill only during market hours, with fees and taxes applied; your trades and equity curve stay on this device. Prices may be delayed. No real money. Not investment advice.

A live thermometer for the whole Binance USDT market: advancing vs declining coins, the share above their moving averages, 24h new highs and lows, and the RSI distribution. See whether the market as a whole is strong, not just Bitcoin. Not investment advice.

See which trading session is active (Asia, Europe, US) and the time to the US stock market open, then a heatmap of average range and volume by hour and weekday measured from real Binance data. Not investment advice.

Set price-cross, % change and RSI conditions on the stocks you follow; while the page is open you get a sound and browser notification when one is met. US stocks plus Korean names like Samsung Electronics and SK hynix. Prices may be delayed. Not investment advice.

Long and short, funding rate, kimchi premium, RSI, MACD, Bollinger Bands, P/E, short selling and market cap: common crypto, stock and charting terms explained simply with examples, each linked to a live tool.

Heatmap of daily-return correlations between the coins you pick over 30, 90 or 180 days, plus each coin's correlation and beta to BTC, 30-day performance vs BTC, most and least correlated pairs and rolling 30-day correlation. Computed from Binance daily candles. Not a forecast or advice.

How Bitcoin and Ether moved with the Nasdaq, S&P 500, KOSPI, gold, the dollar, US 10Y yield, oil and USD/KRW: correlation bars, matrix, rolling chart. Yahoo Finance data, not advice.

Call UP or DOWN on BTC and more over 5 min, 15 min or 1 hour. Entry is the live Binance price, settled on the real 1-second candle close. No money, not advice.

Enter KO, SCHD, O or any ticker: each dividend, annual totals, 5/10-year dividend CAGR, frequency, TTM yield, growth streak. Yahoo Finance data, not advice.

Free lessons in math, science, AI, money and coding, with worked examples, quizzes and prompts; the coding lab runs and checks your code in the browser.

Price, home count, regulated area, floor area and first-time relief in; Korea's acquisition, education and rural taxes and the total out. 2026 rules, editable.

Deal type, property and price or deposit and rent in; Korea's maximum brokerage rate, cap, legal fee and VAT out. 2026 Seoul ordinance rates, editable.

Enter the donor relationship, gift and earlier gifts to estimate Korean gift tax under 2026 rules, with deductions and surcharge. Rates are editable.

Convert net and VAT-inclusive amounts and estimate Korean VAT due for general and simplified taxpayers from sales and purchases. 2026 rules, editable rates.

Enter salary, global income and rent paid to get the Korean rent tax credit for 2025-2026 (17% or 15%), the credit and total saving. Rates are editable.

Engine size, registration date and use in; Korea's annual car tax, age reduction, education tax, June/Dec bills and prepay discount out. 2026 rules, editable.

Enter salary, dependants, card spending and credits to estimate your Korean year-end tax refund or extra payment for the 2025 tax year. Rates are editable.

Enter sale and purchase prices, expenses and holding period to estimate Korean capital gains tax on a home under 2026 rules, with exemptions and deductions.

Enter freelance or business revenue, expense rate or actual expenses and deductions to estimate Korean income tax for 2025 against the 3.3% withheld.

Gold and silver in won, yen or dollars, refreshed every 60s: per gram, don (3.75 g), ounce or kg, 18K/14K value, daily move split, 10-year chart. Not advice.

USD/KRW, EUR/USD, USD/JPY and 13 more FX rates from Yahoo Finance: daily change, intraday to all-time charts, returns and a converter. Not bank rates or advice.

Live list of coins Upbit has flagged for review or caution: price swings, volume or deposit surges, global price gaps and account concentration. Prices, first-seen times, plain explanations. Not advice.

KOSPI, KOSDAQ, S&P 500, Nasdaq, Dow, Nikkei, USD/KRW, gold, WTI, US 10Y and BTC/ETH: closes, daily changes, 52-week position and large-cap movers from live quotes, every 5 min. Not advice.

This site's server checks Upbit and Bithumb market lists every 3 minutes and records new listings and delistings with the time it first confirmed them. Price, change since first-day open, alerts, filters. Not advice.