Blockchain Tools

Blockchain tools for crypto & Web3. Generate wallets, validate addresses, decode transactions, and explore blockchain data securely.

21 tools available

Blockchain Tools 20

DCA Calculator

Simulate Dollar Cost Averaging for crypto investments. Compare DCA vs lump sum strategy with charts, average cost, ROI, and detailed schedule.

Crypto Profit/Loss Calculator

Calculate crypto trading profit, loss, and ROI instantly. Include buy/sell fees, break-even price, and net returns for any cryptocurrency trade.

Impermanent Loss Calculator

Calculate impermanent loss for Uniswap V2 V3 and Balancer liquidity pools. Compare HODL vs LP returns, weighted pools 80/20 supported. Free, instant.

ENS Resolver

Resolve ENS domains to Ethereum addresses or reverse lookup an address to its primary ENS name. Free instant tool for vitalik.eth, ens.eth and more.

Blockchain Timestamp Converter

Convert Unix timestamps to human dates and vice versa for Ethereum, Bitcoin, Solana and EVM chains. Solidity-friendly, smart contract debugging.

Keccak SHA3 Hasher

Generate Keccak-256, Keccak-512, SHA3-256, SHA3-512 hashes online. Free Ethereum-compatible hash tool for smart contracts and blockchain development.

ABI Encoder / Decoder

Encode function calls into calldata or decode raw transaction input data for Ethereum, Polygon, BSC and any EVM chain. Supports tuples, arrays, structs.

Checksum Address Converter

Convert Ethereum addresses to EIP-55 checksum format. Validate and format ETH, BSC, Polygon addresses with mixed-case checksums for error detection.

EVM Vanity Address Generator

Generate custom EVM vanity addresses with personalized prefix/suffix. Create unique Ethereum, BSC, Polygon addresses. Fast, secure, browser-based tool.

Lido Rewards Tracker

Track Lido stETH rewards across multiple Ethereum wallets in real time. View APR history, reward charts, export CSV in USD, EUR or GBP currency.

Bitcoin Unit Converter

Convert Bitcoin units instantly: BTC, satoshi, mBTC, bits and more. Free online converter with fiat currency support and precise calculations.

EVM Transaction Decoder

Decode EVM raw transaction hex for Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche. View transaction details, gas, value, data, and signatures.

Staking Rewards Calculator

Calculate ETH staking rewards with live APY from Lido, Rocket Pool, Ether.fi, Aave V3. Daily, weekly, monthly, yearly returns + compounding.

Tokenomics Chart Builder

Build pie and doughnut tokenomics charts for crypto whitepapers. Edit categories, percentages, colors and export 4K PNG ready for pitch decks.

BIP39 Mnemonic

Generate or validate BIP39 seed phrases of 12-24 words for crypto wallets. Verify checksum, derive seed hex, view entropy bits. Client-side and private.

Crypto Logo Library

Free library of 500+ cryptocurrency logos in transparent PNG. Search Bitcoin, Ethereum, Solana, SUI, top altcoins. Direct URL or download for devs.

Ethereum Unit Converter

Convert between Wei, Gwei, Ether, Szabo, Finney and all EVM units precisely. Calculate gas costs from transaction parameters. Free dev tool, instant.

Mnemonic to Address

Derive wallet addresses from BIP39 mnemonic for Bitcoin, Ethereum, Solana, XRP, TRON, Dogecoin, Cardano and more. 100% client-side, secure.

Solidity Function Selector

Generate Solidity function selectors and event Topic0 hashes from signatures. Encode 4-byte selectors, lookup common ERC20 and DeFi signatures.

Wallet Address Validator

Validate any wallet address offline: Bitcoin Base58Check + Bech32, Ethereum EIP-55, Solana, Tron, Litecoin, Dogecoin, Cardano, Stellar. No API, runs in your browser.

Calculators 1

Financial Calculators 1

Stablecoin Yield Comparator

Compare APY rates from Aave, Compound, Sky, Ethena, Pendle, Coinbase and more side by side, with risk-adjusted ranking, fees and inflation. Offline calc.