Interactive instruments for Bitcoiners.
20 tools live · all run in your browser · no telemetry beyond GA4.
Calculators
10 liveConversions, projections, accumulation plans.
- calculator
Bitcoin Fee Estimator
Estimate on-chain Bitcoin transaction fees for any wallet type and priority — with live mempool rates and USD conversion. No tracking.
- calculator
Bitcoin Mining Profitability Calculator
Estimate daily BTC mining revenue and profit from your hashrate, ASIC efficiency, and electricity cost. Live BTC price, current network parameters.
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DCA Calculator
Backtest dollar-cost-averaging into Bitcoin. Set your weekly or monthly amount and date range — see total sats stacked and value today.
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HODL Calculator
See what a past Bitcoin purchase would be worth today — yearly USD averages 2010-2025, client-side math, live price from coingecko.
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Inflation vs Bitcoin
See how much US dollar purchasing power has eroded since a chosen year — and what the same money would be worth today if held in Bitcoin instead.
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Lightning Fee Calculator
Estimate Lightning Network routing fees for any payment size. Adjustable hops, base fee, and ppm for realistic channel-policy scenarios.
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RBF Fee Bumper
Replace-by-fee calculator for stuck Bitcoin transactions. Enter original fee and desired rate — see the minimum valid replacement per BIP 125.
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Retirement in Sats
Estimate the sats you'd need to retire in cities worldwide — Bangkok, Lisbon, Tokyo, and more. Adjustable withdrawal rate, multiple price scenarios.
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Sats Converter
Convert sats, BTC, and fiat with live Bitcoin prices. All math runs client-side in your browser — no tracking. Permalinks for easy sharing.
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Stacking Plan
Plan your sats accumulation. Set a goal and deadline; see exactly how much to stack daily, weekly, or monthly at the current Bitcoin price.
Decoders
2 liveRead what an invoice, address, or script actually contains.
- decoder
BOLT 12 Offer Decoder
Decode BOLT 12 Lightning offers, invoices, and invoice-requests. The successor to BOLT 11 — supports static reusable offers and onion messages.
- decoder
Lightning Invoice Decoder (BOLT 11)
Paste a BOLT 11 Lightning invoice and see the amount, network, description, and expiry at a glance. Runs in your browser — no keys ever sent.
Validators
6 liveVerify checksums and formats — never trust, verify.
- validator
BIP-39 Validator
Paste a 12/15/18/21/24-word seed phrase. We check every word against the BIP-39 list and SHA-256-verify the checksum. Runs in your browser.
- validator
Bitcoin Address Validator
Paste any Bitcoin address and instantly see its type — Legacy, SegWit, or Taproot — with checksum verification. Runs client-side in your browser.
- validator
Exchange legit checker
Search 30+ major exchanges. See verified licenses, proof-of-reserves status, documented incidents, and warning flags for collapsed or fraudulent exchanges.
- validator
Lightning address verifier
Paste a Lightning address (alice@domain), fetch the LNURL-pay endpoint, validate the response, and cross-check against known providers. Catches typosquats.
- validator
Vanity Bitcoin Address Generator
Generate a Bitcoin Native SegWit address with a chosen short prefix. 100% client-side — your private key never leaves the browser.
- validator
Wallet installer SHA-256 verifier (Ledger, Trezor, Sparrow)
Drag any wallet installer to compute its SHA-256 in your browser, then compare against the vendor's official hash. Catch tampered or fake downloads.
Visualizers
2 liveSee on-chain and network data at a glance.
- visualizer
Bitcoin Mining Pool Comparison 2026
Compare Bitcoin mining pools side-by-side: payout schemes (FPPS, PPLNS, TIDES), fees, Stratum V2 support, and decentralization signals.
- visualizer
Bitcoin Power Law Projection
Visualize the Bitcoin power law model — support, fair value, and resistance bands projected through 2050. Educational, open-methodology, not a prediction.