Gas fee estimators, DeFi yield calculators, wallet analyzers, token converters — all free, all instant, no signup needed.
Every tool runs in your browser — private, instant, and completely free. No account, no wallet, no data stored.
Estimate ETH, BNB, Polygon & L2 transaction costs instantly.
Calculate APY, compound returns, and projected earnings from any DeFi position.
Convert between ETH, Gwei, Wei, USDC, BTC, SOL, and 10+ tokens.
See exactly how much IL you'd suffer on any AMM liquidity position.
Calculate profit, loss, ROI, and break-even on any crypto trade.
Project staking returns for ETH 2.0, SOL, ADA, DOT and more.
Validate any public Ethereum wallet address and open it on Etherscan or DeBank.
Validate Ethereum, Bitcoin, and Solana wallet addresses before sending.
Generate deterministic hex hashes for any string — useful for dev & verification.
Calculate rarity scores for NFT traits and rank your collection.
Stop overpaying on transaction fees. Our estimator supports Ethereum mainnet, all major L2s, BNB Chain, Polygon, and Avalanche.
A complete beginner guide to Ethereum gas, EIP-1559, and tips to pay less.
Learn how compounding works in DeFi and why APY can be misleading.
What is impermanent loss, when does it happen, and how do you minimize it?
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