Practical tools organized by what you want to accomplish
Stuck transaction? Lost access? Possible scam? Get immediate help for common Bitcoin emergencies.
Convert between BTC, satoshis, mBTC, bits, and USD instantly. Live pricing included.
Calculate your Bitcoin DCA strategy with historical backtesting. See how regular purchases compound over time.
Complete Bitcoin fee management: estimate costs, decide timing, track transactions in real-time.
Master UTXO management through 6 scenarios: consolidation, fee optimization, privacy protection.
Build Bitcoin transactions from scratch. Understand inputs, outputs, fees, and signatures in detail.
Interactive demo showing how 2-of-3 multisig with TBA eliminates single points of failure. See real attacks blocked, inheritance planning, and jurisdictional protection.
Master Bitcoin wallet security through hands-on scenarios. Learn seed phrase management, backup strategies, and threat defense.
Practice Bitcoin transactions safely on testnet. Get free test coins, send transactions, learn without risk.
Complete 21M supply visualization with halving timeline. Zoom from individual blocks to centuries.
Visualize Bitcoin's timechain with block time analysis and live block countdown.
Calculate mining difficulty, hashrate requirements, and predict difficulty adjustments.