Free ETH Tools.
Model fees, staking, DCA, taxes, and portfolio scenarios without an account or wallet connection. Outputs are estimates, not promises.
ETH Gas Fee Estimator
Estimate gas costs for common Ethereum actions using current network gas data and typical transaction units.
ETH Wealth Simulator
Model long-term ETH targets with live or user-entered starting ETH/USD, editable staking yield, and bear, base, and bull scenarios.
ETH Investment Calculator
Estimate lump-sum, monthly DCA, and date-comparison ETH outcomes with Coinbase daily candles, request timeouts, and fail-closed live valuation.
ETH DCA Simulator
Model recurring ETH purchases with Coinbase Exchange daily candles, live fail-closed valuation, and transparent source timestamps.
Staking APY Comparator
Model editable staking-rate scenarios, liquidity trade-offs, and custody risk. USD yield estimates pause unless live ETH/USD is available.
Bot vs HODL Simulator
Model whether a trading bot or simply holding ETH would have performed better over any historical period.
Crypto Tax Estimator
Get a rough estimate of your crypto tax liability before you talk to an accountant. Fast, free, no data stored.
ETH Gas Tracker + Best-Time Heatmap
Live gas price in gwei and USD, a 56-day heatmap of the cheapest hours to transact, and a fee calculator for transfers, tokens and swaps.
ETH Price Target Probability
Will ETH reach $6,000 or $10,000 by Dec 31? Model the odds of hitting any price target by any date using live price and volatility.
Ethereum Address Checker
Validate 0x format and EIP-55 checksums in your browser, then compare two addresses character-by-character for classic address-poisoning lookalikes. No wallet connection.
ETH Portfolio Tracker
Look up the native ETH balance of a public address. Snapshot only: no wallet connection, tokens, NFTs, history, or alerts.
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We build these based on what the community actually needs. If you have an idea for a calculator or simulator that should exist, let us know.
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