Tools overview

Nine free calculators and trackers: what each one does and where its data comes from.

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All tools are free, work without an account and store nothing about you. The data comes from public sources, named on each tool's page and below.

Which tool for what

• Converter: what any top-50 coin is worth in dollars, euros and other currencies.
• Gas tracker: what a transfer or a swap costs right now on Ethereum and six other networks.
• Fear & Greed Index: market mood as a number from 0 to 100.
• Heatmap: the whole top 50 on one screen, sized by market cap and colored by price change.
• DCA calculator: what regular buys over the last 3, 6 or 12 months would be worth.
• Liquidation calculator: the price at which an exchange closes a leveraged position.
• Halving countdown: when the bitcoin block reward is cut in half.
• Sanctions check: whether a wallet address is on the OFAC sanctions list.
• Funding rates: perpetual futures funding on Bybit and OKX.

Data sources

• Coin and currency prices: CoinGecko, refreshed every few minutes.
• Gas: public network nodes (publicnode.com), every 15 seconds.
• Fear & Greed Index: alternative.me, once a day.
• Bitcoin blocks: mempool.space, every minute.
• Sanctions list: OFAC SDN as parsed by 0xB10C, refreshed every 12 hours.
• Funding: the public Bybit and OKX APIs, every 5 minutes.

Tool results are estimates, not financial advice. Check with your exchange or wallet before you trade.