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[JS_DISABLED]This tool draws its charts and data in the browser, so the page below stays empty. /dca and /how-much-i-fucked-up still show real numbers without JavaScript.

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Tools

Top 100 cryptocurrency browser powered by CoinGecko API

Global wealth block visualization - see all the money in the world

Dollar Cost Averaging calculator with Bitcoin historical data

Inflation-adjusted asset charts with D3.js visualizations

Bitcoin halvings against the price, with the 500-day window around each one

Bitcoin against a log regression fitted to our own data, with bands at multiples of the residual

Big Mac Index vs Bitcoin price history comparison

"What if I invested X on date Y?" calculator with historical data

Build Bitcoin Core from source and run a pruned node, with both wallet formats

Source

MNMNCS on GitHub [C]
BIP-39 in C — generates entropy and mnemonics, derives the seed with PBKDF2 and keys with BIP-32, and exports xprv and WIF for Electrum and Bitcoin Core.
BTC_DESCRIPTORS_PARSER on GitHub [C]
Bitcoin output descriptor parser and address generator in C — derives keys along BIP-32/44 paths and emits addresses across the common formats. Built on OpenSSL and json-c.