Free crypto tools — no login, no sign-up

Free crypto tools — no login, no email, no KYC

This is a growing collection of free crypto calculators and converters that you can use straight away, with nothing to sign up for. Most calculators elsewhere put a number behind a login wall or an email form first; ours don't. There's no account, no email capture, no ID check, and nothing is saved against your name — you type a number, you get an answer, you close the tab. That's the same privacy-first principle behind the AceChange swap itself, which is non-custodial and no-KYC, and it's why every tool here runs in your browser instead of profiling you.

Which tool do I need?

Every tool answers one plain question. Pick the one that matches what you’re actually trying to work out — all of them are live and free.

• Crypto Converter — “What is X worth in Y right now?” Type an amount, pick two coins, and see the live conversion at the real market rate. Best for a quick, accurate price check before you swap.
• DCA Calculator — “What if I’d bought a fixed amount every week or month?” It replays real historical prices to show how much you’d have invested, how many coins you’d hold, today’s value and your return — and how that compares to one lump-sum buy. Best for planning a steady, no-timing strategy.
• Profit / Loss Calculator — “Did I actually make money on that trade?” Enter your buy price, amount and sell price (or pull the live price) and it shows profit in dollars and percent, your ROI and your true break-even after fees. Best before you sell, or to mark an open position to market.
• Percentage-Change Calculator — “How big was that move, as a percentage?” Enter two prices and get the exact percent change, the difference, and the multiple. Best for sizing a move or sanity-checking a screenshot.
• Satoshi / Unit Converter — “How many sats is that, and what’s it worth?” Converts BTC ⟷ satoshi ⟷ USD (and ETH ⟷ gwei ⟷ wei). Best for stacking sats or making sense of gas units.
• Ethereum Gas Tracker — “Is now a cheap time to transact on Ethereum?” Live slow/average/fast gas in gwei, plus the real dollar cost of a transfer, token send, swap or NFT mint. Best for timing an on-chain action — or deciding to use a cheaper network.
• USDT/USDC Network Comparator — “Which network should I send my stablecoin on?” Compares TRC-20, ERC-20, BEP-20, Solana and Polygon on fee, speed and support — with the live ERC-20 cost. Best before sending USDT/USDC so you pick the cheapest correct chain (and never lose funds to the wrong one).
• What If I Had Bought — “What would a past purchase be worth today?” Enter an amount, a coin and a date and it uses real historical prices to show today’s value, your multiple, and the peak along the way. Best for understanding how much timing really mattered.
• Fear & Greed Index — “Is the market fearful or greedy, and what has that meant?” Shows the live 0–100 sentiment reading with the contrarian historical guide: extreme fear has often been a better time to buy, extreme greed a better time to sell. Best for a calm second opinion on timing.
• Price Alerts — “Tell me when it hits my number.” Set a target price, a ±% move or a recurring DCA reminder and we’ll message you on Telegram or email — so you don’t have to watch a chart. Best for acting at the right moment without staring at screens.

Why you can trust these numbers

The rates here come from the same live price engine that powers our swaps, so the figure a tool shows you lines up with what you'd actually get when you trade — not a stale third-party feed. Fee and network estimates use real on-chain costs rather than round-number guesses, and every result comes with a plain-English explanation of how it was worked out, so you can sanity-check it yourself. When you're ready to act on a number, you can swap right here in about five minutes — non-custodial, no account, fees from 0.5%, across 70+ coins, 20+ networks and 4,000+ pairs.

General information, not financial advice. Crypto prices are volatile, calculators model scenarios rather than predict them, and on-chain transactions are irreversible — always double-check the network and address, and do your own research before you trade.