Free Bitcoin tools
Four small tools built on the same keyless public data as O Sinal Bitcoin. None of them requires an account, collects your data, or funnels you anywhere.
Tool
Calculadora de taxas
What a Bitcoin transaction costs right now, at each confirmation tier.
Open → ToolBTC / sat / fiat + DCA
Convert units at live rates and model a regular-buy schedule.
Open → ToolContagem para o halving
Blocks remaining, computed from chain height.
Open → ToolCalculadora de tamanho de posição
Turn a risk limit into a maximum position. Educational only.
Open →
Educational tools, not advice. These perform arithmetic on public data. They do not know your
circumstances, cannot account for fees, spread or slippage, and are not recommendations to take any position.
Bitcoin is volatile and you can lose money.
Continuar explorando
Live data
O Sinal Bitcoin
Price, fees, hashrate, halving and on-chain fundamentals — each with what it can and cannot tell you.
ReferenceBitcoin glossary
Every term this site uses, defined plainly, with no jargon and nothing to sell.
AnáliseA Análise por primeiros princípios
Claim, evidence, reasoning — and an explicit account of what the evidence does not prove.