Free Tools
Bitcoin Tools
Use the core tools before you spend money. Scenario tools are separated because hypothetical results are not forecasts. Free, no signup required.
Live reference tools
Live Bitcoin Tools
Network fee snapshots, withdrawal-cost comparisons, alerts, datasets and embeddable widgets. Use them as current references, not predictions.
Core decision tools
Check availability, costs, fees, wallets, network conditions and basic Bitcoin amounts before you act.
Bitcoin Real Cost Calculator
Model funding fees, trading fees, spread, withdrawal cost, and BTC received.
NewBitcoin Wallet Selector
Match a wallet to your device, balance, experience, Lightning, privacy, or multisig needs.
NewWhere to Buy Bitcoin
Choose a country to review availability, payment methods, KYC, and exchange guides.
LiveTransaction Checker
Explain confirmations, fee rate, priority, and RBF from a public Bitcoin TXID.
NewScam URL Checker
Review a crypto website for visible phishing and lookalike-domain signals.
Most popularBitcoin Calculator
Convert BTC to USD, EUR, GBP, JPY and 10+ currencies.
InteractiveExchange Finder
Answer 4 questions to find a suitable exchange.
EmbeddableHalving Countdown
Live countdown to the next Bitcoin halving — embeddable on your site.
Fee Comparison
Compare trading fees across major exchanges side by side.
Satoshi Converter
Convert sats to USD, KRW, CNY and more at the live price.
LiveFee Estimator
Live miner fees right now — fast vs economy, in your currency.
LiveFear & Greed Index
Live crypto sentiment: today vs yesterday vs last week.
Scenario tools
Explore historical or hypothetical outcomes. These tools illustrate assumptions; they are not forecasts or return promises.
Historical and hypothetical outputs depend on your inputs. They are not predictions, personalized financial advice, or promised returns.
Bitcoin ETF Fee Calculator
Model how an editable annual product fee compounds over a holding period.
DCA Calculator
Explore a historical or hypothetical DCA schedule under your chosen assumptions.
Profit Calculator
Calculate a hypothetical gain or loss from prices you enter; not a forecast.
Goal Calculator
Work backward from a BTC amount using assumptions you control.
Ownership Simulator
See your BTC holding as a share of the 21M supply.
Average Cost Calculator
Calculate your average buy price across multiple purchases.
Compound Interest
Illustrate compounding math under an editable hypothetical return assumption.
Inflation Calculator
Compare purchasing-power assumptions without treating Bitcoin performance as guaranteed.
Retirement Calculator
Explore retirement scenarios using editable assumptions; not a forecast.
FIRE Calculator
Explore a hypothetical FIRE scenario with editable assumptions; not financial advice.
What If Calculator
Explore a historical counterfactual; past price paths do not predict future returns.
Rainbow Chart
Log-regression bands from fire sale to maximum bubble.