Every IsCoinLegit tool is free and runs directly in your browser — no account, no sign-up, and nothing you type is saved. Calculators, converters, a live halving countdown and a token safety checker — 17 free helpers built to answer one question before you risk money: is this legit?
Our motto is simple: check before you trust.
All free tools
- Profit / Loss Calculator — Calculate your crypto return, fees and break-even price.
- Ethereum Gas Fee Calculator — Estimate a transaction fee from gas price and gas limit.
- DCA Calculator — Model fixed investments made weekly or monthly.
- Staking Calculator — Estimate rewards with simple or compound growth.
- Crypto Unit Converter — Convert ETH, Bitcoin and Solana units exactly.
- Satoshi to BTC Converter — Convert satoshi, mBTC and BTC with exact unit values.
- Bitcoin What-If Calculator — Estimate what an old Bitcoin purchase could be worth today.
- What-If Crypto Calculator — See what a past purchase of Bitcoin, Ethereum, Solana and more could be worth today.
- Bitcoin Halving Countdown — Count down to the estimated 2028 halving and review past rewards.
- Crypto Tax Estimator — Get a rough educational estimate from simplified country rules.
- Crypto QR Code Generator — Turn a wallet address into a downloadable QR code in your browser.
- Crypto Break-Even Calculator — See the price and percentage move needed to recover your cost.
- Liquidation Price Calculator — Estimate a leveraged position’s liquidation level and adverse move.
- Crypto Arbitrage Calculator — Compare two exchange prices after a simple fee estimate.
- Crypto Slang Decoder — Search 24 common crypto terms and read plain-English examples.
- Mining Profitability Calculator — Estimate revenue, electricity cost and profit from your own figures.
- Token Safety Checker — Scan a token contract for honeypot, tax, and rug-pull warning signs.