Every tool, explained
Eighty-three panels, what each one measures, and how to read it. Free, no account, nothing stored on our servers.
Preflight is a workspace, not a dashboard. You open only the panels you need and arrange them how you like; the layout is remembered on your next visit. Press Ctrl+K to search all panels, double-click any window header to expand it, and drag a window to the edge of the screen to snap it to half or full size.
This page explains every panel in order. Where a number is easy to misread, we have said how traders actually use it rather than only defining it.
Only here — thirty-three tools built for this site
These do not exist on any other platform. Each was built from a complaint traders keep repeating, and each is explained in full on the Only here page.
★ Squeeze radar
Scores eight markets from 0–100 by combining funding, open-interest growth and crowd positioning, and names which side is exposed. Above 70 reads fragile.
How to use it: it measures how violent the next move could be, not its direction. Treat a high score as a reason to size down, not a reason to enter.
★ Wick guard
Flags candles whose wick stretched more than twice the average body, then tells you how often that pair gets hunted.
How to use it: if a market shows frequent hunts, a tight stop there is a donation. Widen it and size down instead.
★ Stop-hunt map
Every swing high and low across 200 candles, grouped into eighteen price bands. Red is sell stops above, green is buy stops below.
How to use it: check it before placing a stop. Inside a thick band means queueing behind everyone else.
★ Exchange spread
Bitcoin priced simultaneously on five venues, with each one's distance from the average.
How to use it: when a violent candle appears, look here first. If one venue disagrees, the move was local, not real.
★ Move alarm
Scans ten markets on five-minute candles and flags anything breaking out of its own volume and volatility pattern.
How to use it: it tells you something is moving before an article explains why. That gap is the point.
★ Gap magnet
Finds price zones the market jumped over and has not yet traded back through, with their distance from spot.
How to use it: unfilled gaps act as targets more often than chance suggests. Useful for placing take-profits.
★ Best hours
A thousand hourly candles studied to show the average range in every hour of the day and day of the week.
How to use it: stop trading dead hours. You pay full risk there for half the opportunity.
★ True cost
Live funding plus both sides of the fee for your size and holding period, as one number and as a percentage of the position.
How to use it: run it before any multi-day hold. Above one percent, your target has to clear that first.
★ Feed health
Pings six data sources and reports which respond and how fast.
How to use it: if a panel is empty, check here — it distinguishes a bug from a regional block in three seconds.
★ Backtester
Test EMA cross, RSI reversion or breakout rules on a thousand candles of real history. Returns win rate, profit factor, expectancy, max drawdown and an equity curve — with both sides of the fee included, and buy-and-hold shown beside it.
How to use it: no code and no account. If the rule loses to buy-and-hold, the trading added risk without adding return.
★ Monte Carlo
Takes your win rate, reward ratio and risk per trade, then plays the next 200 trades a thousand times in random order. Reports the median outcome, the bad case, typical drawdown and how often the account gets halved.
How to use it: lower risk per trade until the 5th percentile is a result you could actually live through.
★ Portfolio X-ray
Reads your own holdings, pulls thirty days of daily returns for each, and calculates how many genuinely independent bets you hold.
How to use it: under 1.6 means your positions move as one. That can be deliberate — it should not be a surprise.
★ Custom screener
Filter the whole market by 24-hour change, weekly change, minimum volume and distance from all-time high.
How to use it: distance from the all-time high is the fastest way to separate a pullback from a collapse.
★ Network guard
Pick an asset and network, paste the destination address, and it validates the format, flags when an address shape is shared across several chains, and shows the typical fee for that route.
How to use it: run it before every first-time transfer. Wrong-network sends cannot be reversed by anyone.
★ Exit test
Walks the live order book with your position size and reports the slippage, the cost of exiting, how much of the book you would consume and your share of daily volume.
How to use it: test the exit before entering. Market cap says what a position is worth; this says what you would receive.
★ Send timing
Reads the Bitcoin mempool and shows the four fee tiers in sat/vB and in dollars, with a verdict on whether waiting saves meaningful money.
How to use it: unless the transfer is urgent, a quiet hour costs a fraction of a congested one.
★ Loss cooler
Shows the exact gain needed to recover a loss, how many normal winning trades that takes, and starts a thirty-minute entry pause.
How to use it: open it immediately after a loss, before opening anything else.
★ Tax export
Builds a clean CSV of your journal and holdings in the browser, ready for an accountant or a tax tool.
How to use it: export quarterly while your memory of the trades is fresh, not at the deadline.
★ Airdrop farm tracker
Log every protocol you farm with a target interaction count. Shows progress, days since last touch, and warns when a protocol has gone quiet.
How to use it: allocations often have hard cutoffs. Track the count rather than trusting memory — missing a tier by one transaction pays nothing extra for months of effort.
★ Sybil self-check
Scores your farming pattern against the six documented filtering signals: shared funding, identical amounts, same-day batches, single-protocol history, empty wallets and single bursts.
How to use it: fix the funding path and the timing before adding volume. Volume cannot rescue a detectable pattern.
★ Gas across chains
Live gas on Ethereum, Arbitrum, Base, Optimism, Polygon and BNB Chain, read directly from each network's public node, with the cost of a transfer and a swap in dollars.
How to use it: farm on whichever chain is cheapest at that moment. The gap between the most and least expensive is often a hundredfold.
★ Claim safety
Inspects a claim page address for punycode lookalikes, hyphenated imitations, reward-themed domains, deep subdomains and raw IPs.
How to use it: run it before connecting anything. No genuine airdrop ever asks for a seed phrase.
★ Health factor
Enter collateral, debt and the liquidation threshold to get your health factor, current LTV, how far collateral can fall, and the exact liquidation price of the asset.
How to use it: below 1.5 a single bad day ends the position. Over a billion dollars of DeFi positions were liquidated in twenty-four hours during the May 2021 crash.
★ Impermanent loss
Compares a liquidity position against simply holding the two tokens, with your fee income and holding period included, for 50/50 and 80/20 pools.
How to use it: run it before depositing. Most liquidity providers never calculate whether the fees actually covered the divergence.
★ Depeg watch
Nine major stablecoins monitored live against a dollar, with the deviation shown as a bar and a warning when any drifts.
How to use it: even temporary deviations create real losses if you must exit or repay during them.
★ Yield reality
Takes an advertised APY and subtracts gas for every transaction the position needs, then shows the real APY, how many days it takes just to repay gas, and what happens if emissions halve.
How to use it: on small accounts gas frequently exceeds the entire yield. This is the check that saves beginners the most money.
Liquidation map
Estimated liquidation clusters modelled from open interest across five leverage tiers, drawn as price bands above and below the market.
How to use it: thick bands are where forced closing would accelerate a move. Built the same way every paid heatmap is — from a model, not from the exchange's engine.
Rekt totals
Forced closes split between longs and shorts across 1, 4, 12 and 24-hour windows, counted from the live stream while your tab is open.
How to use it: a burst of long liquidations often marks a local capitulation rather than the start of a deeper fall.
All exchanges
Funding and open interest aggregated from Binance, Bybit and OKX, with the total and the average.
How to use it: funding gaps between venues are where basis trades live.
Options (Deribit)
Put/call ratio and open interest for Bitcoin options, straight from the public Deribit feed.
How to use it: below 1 means calls dominate — bullish positioning. Above 1 means hedging or bearish bets. Institutional data, rarely offered free.
RSI screener
Daily RSI for ten major markets, each classified as overbought, oversold or neutral.
How to use it: read it across the basket. If everything is stretched, the market is stretched — not that one coin.
Market cycle
The Mayer multiple (price divided by the 200-day average), distance from that average, and the Pi Cycle top signal.
How to use it: readings above 2.4 historically marked cycle tops, below 0.8 accumulation zones. History is not a promise.
Correlation vs BTC
Thirty-day correlation of ten major coins against Bitcoin, each labelled from "follows BTC" to "independent".
How to use it: near 1 means the coin is a Bitcoin proxy. Buying five of those is one bet, not five.
Volatility ranking
Thirty-day daily volatility for eleven markets, classified from calm to extreme.
How to use it: the same stop distance means a very different survival rate on a calm coin and an extreme one. Size accordingly.
Mood 30 days
The Fear and Greed index charted over the past month with its high and low.
How to use it: direction matters more than the value. A reading of 25 rising from 12 is a different market than 25 falling from 60.
BTC network
Live Bitcoin fees across four confirmation speeds, in sat/vB.
How to use it: check before moving coins. The gap between fastest and economy is often several multiples for an hour of patience.
Halving countdown
Days and blocks remaining until the next Bitcoin halving, with the current block height.
How to use it: a long-horizon marker, not a trading signal.
Community
Real discussion pulled live from r/CryptoCurrency, r/Bitcoin, r/CryptoMarkets and r/ethtrader, ranked by engagement, plus one-tap live searches on X.
How to use it: sentiment arrives here before it reaches articles. Treat it as mood, never as research.
☕ Coffee
A tip jar with a card link and crypto addresses.
How to use it: entirely optional. The site has no paywall and never will.
★ Whale watch
Reads large on-chain movements for ten known wallets — Binance cold and hot storage, Coinbase, Kraken, OKX, Bitfinex, the Ethereum Foundation and Vitalik — with inflow and outflow totals and every transfer above a threshold you set.
How to use it: coins moving onto an exchange often precede selling; coins leaving usually mean accumulation or custody. Read live from a public block explorer with no key, while this is sold elsewhere for around $150 a month.
★ Coinbase premium
The gap between the Bitcoin price on Coinbase and on Binance, for BTC and ETH.
How to use it: Coinbase serves US institutions and Binance serves the global market. A persistent positive gap means Western institutional money is buying. Sold as a paid index elsewhere; here it is two public prices and a subtraction.
★ Cycle models
The Mayer multiple, the golden ratio multiplier against the doubled 350-day average, and price relative to the 200-week average, each with its historical band.
How to use it: readings in top territory are a reason to reduce risk, never a prediction. Below the 200-week average has historically been a generational accumulation zone.
★ Mint & burn
Net stablecoin minting across the eight largest issuers, for the last day and the last week, with total supply.
How to use it: expanding supply is new capital entering the system and has historically been a tailwind. Contracting supply removes buying power. Minting alerts are a paid feature elsewhere.
★ New launches
Pools created in the last hours across Solana, Ethereum, Base, BNB Chain and Arbitrum, with age, liquidity, volume, buy/sell counts and hourly change. A warning marks any pool whose volume exceeds twenty times its liquidity.
How to use it: discovery is the easy part. Around 85% of new launches are rug pulls or fail entirely, so run every candidate through the safety scan before buying.
★ Token safety scan
Paste any contract address and it scores the token against eight documented rug patterns: thin liquidity, extreme youth, almost no trades, volume far above liquidity, sellers outnumbering buyers, fully diluted value far above market cap and a collapsing hourly price.
How to use it: it reads market data only. It cannot see the contract, so it will not catch a hidden sell tax or a honeypot — always test with a tiny amount and sell part of it immediately.
★ 30-second check
The ten checks professionals run before a launch entry: liquidity above $150,000, liquidity not falling, buy tax under 5%, sell tax under 10%, real trades happening, many distinct buyers, volume not far above liquidity, verified contract, renounced ownership or locked liquidity, and reasonable holder distribution.
How to use it: each unchecked box moves you toward the 85% that fail. Ten out of ten lowers the odds; it never removes them.
Market
Chart
Candlestick charts drawn by our own engine rather than an embedded widget, so nothing breaks when a third party blocks iframes. Five timeframes from 15 minutes to weekly, EMA 20 and EMA 50 overlaid, volume bars beneath, and a live price line that updates tick by tick over a websocket. If the exchange feed is unreachable on your network it falls back automatically to a line chart from a second provider.
How to use it: set the timeframe you actually trade, not the one that looks best. If the two moving averages are tangled together, the market has no trend and breakout entries will chop you up.
Prices & Screener
The top coins with price, 24-hour and 7-day change, volume and market cap, sorted by size. The screener view widens this to 250 coins in a sortable table.
How to use it: scan the 7-day column, not the 24-hour one. Daily moves are noise; a week of consistent direction is a trend worth examining.
Movers & Heatmap
The strongest and weakest names of the session, plus a colour grid where intensity reflects the size of the move.
How to use it: when almost every tile is the same colour, you are looking at a market-wide move rather than anything specific to one coin. Individual analysis matters less on those days than position size does.
News
Headlines merged from eight publishers — CoinDesk, Cointelegraph, Decrypt, CryptoSlate, Bitcoin Magazine, The Defiant, BeInCrypto and CryptoBriefing — sorted newest first with the source and age of each item.
How to use it: check it before entering, not after. A position opened ten minutes before a scheduled announcement is a coin flip, however good the chart looked.
Mood & 30-day history
The Fear and Greed index with total market cap and volume, plus a thirty-day line of the same index with its high and low.
How to use it: the value matters less than its direction. A reading of 25 that has climbed from 12 tells a very different story than 25 falling from 60.
Dominance & Altseason
How the total market splits between Bitcoin, Ethereum and everything else, and a gauge counting how many of the top fifty coins outperformed Bitcoin over the past week.
How to use it: a high altseason score means capital is rotating outward and alt positions have a tailwind. A low score means Bitcoin is absorbing the flow and alt longs are swimming upstream.
Trending & Coin profile
The most-searched coins right now, and a profile panel with rank, market cap, volume, all-time high, distance from that high, weekly performance and the share of supply already issued.
How to use it: distance from all-time high is the fastest sanity check there is. A coin 95% below its peak needs a twentyfold move just to return there.
Economic calendar & Sessions clock
Scheduled macro releases, and which of the four trading sessions — Sydney, Tokyo, London, New York — is currently open, with the UTC time.
How to use it: the London and New York overlap carries the deepest liquidity of the day. Thin hours produce wicks that take out stops which would have survived at any other time.
Derivatives — free, from the exchange itself
Every panel in this group shows data that other platforms charge a monthly fee for. Exchanges publish it openly and without an API key. We read the same public source directly and pass it on.
Liquidations live
A live stream of every position forcibly closed across all pairs, with the coin, the side and the dollar size, plus a running total for the last hour.
How to use it: a burst of long liquidations often marks a local capitulation low rather than the start of a further collapse. Watch whether price stabilises within minutes of a large cluster.
Open interest
The total value of open futures positions, its 24-hour change, and a chart of the last day.
How to use it: price up with open interest up means new money is entering and the move has fuel. Price up with open interest falling means shorts are covering, and those moves tend to fade.
Long / short and Top traders
The share of accounts positioned long versus short, shown for retail accounts and separately for the largest accounts on the venue.
How to use it: the interesting signal is disagreement. When retail is heavily long while the largest accounts lean short, one group is about to be proven wrong — and it is usually not the one with the bigger balance.
Funding rates
Current funding for major pairs with the annualised equivalent, updated continuously. Positive means longs pay shorts.
How to use it: a rate that looks trivial at 0.05% per period is roughly 55% a year. On a multi-day hold that cost is not a rounding error, it is part of your entry decision.
Taker flow, Book pressure, Futures premium
Who is hitting the book aggressively right now, the balance of resting bids against asks in the top twenty levels, and how far futures trade above or below spot.
How to use it: a large premium with heavy long positioning is a crowded trade. Crowded trades unwind quickly.
Whale prints
A live feed of individual trades above a size threshold you set, defaulting to a quarter of a million dollars.
How to use it: single prints mean little. A cluster of same-direction prints at one level is worth marking on the chart.
On-chain
Chain TVL & Stablecoins
Value locked across the major chains, and the total circulating supply of stablecoins broken down by issuer.
How to use it: expanding stablecoin supply is dry powder arriving. It has historically preceded broader strength, because that capital is already inside the system waiting to be deployed.
Bitcoin network, Halving, Hashrate
Current fee levels in sat/vB across four confirmation speeds, a countdown to the next halving in days and blocks, and network hashrate with mining difficulty.
How to use it: check fees before you move coins. The gap between the fast and economy tier is often several multiples for a difference of an hour.
Exchange volume
The leading exchanges ranked by 24-hour volume with their logos.
How to use it: if you trade a smaller coin, check that meaningful volume exists somewhere before you size up. Thin books turn a normal stop into a bad fill.
Tools
Position size calculator
Enter your account size, the percentage you are willing to risk, your entry, your stop and any leverage. It returns the position size, the number of units, the cash at risk, the stop distance as a percentage, an estimated liquidation price and — most importantly — the ratio between liquidation distance and stop distance.
How to use it: it warns you when liquidation sits closer than twice your stop, and when you are risking more than 2% of the account. Those two warnings prevent the majority of blown accounts. Read the full guide.
Risk / reward
Enter entry, stop and target to get the R multiple and the win rate you need simply to break even.
How to use it: at 1:1 you need to be right 50% of the time before fees. At 3:1 you need 25%. This single number explains why patient traders with mediocre accuracy still finish ahead.
DCA calculator
Model a series of periodic purchases across a price range and see the amount invested, the average price achieved, the current value and the return.
How to use it: run it before committing to a schedule rather than after. Seeing the average price a falling market produces is the best preparation for staying with the plan.
Converter
Convert between any listed coin and the dollar, or between two coins, at live prices.
Preflight check
Six questions answered before every entry, with a circular gauge that fills from red to green as you complete them.
How to use it: the questions are deliberately uncomfortable — particularly the last one, which asks whether boredom or revenge is driving the trade. Traders with the steadiest results all keep a written list and complete it even when the setup looks obvious.
Yours — stored only on your device
Watchlist, Portfolio, Alerts
Track chosen coins, enter holdings to see total value and daily change, and set price alerts that fire as browser notifications while the tab is open.
How to use it: the portfolio needs no wallet connection and never will. You type quantities; nothing signs anything.
Trade journal
Log each trade with coin, direction, entry, exit and whether you completed the preflight check. It calculates your win rate, average win and average loss — and compares the trades where you followed your checklist against the ones where you did not.
How to use it: that comparison is the most valuable number on this site, and it is the feature others charge twenty to thirty dollars a month for. Log twenty trades honestly and it will tell you something about yourself that no indicator can.
Notes
A free-text pad saved as you type. Levels, plans, observations — it is there when you return.
Everything described above, free, with no account and nothing sent to our servers.
Launch Preflight