170 Free Crypto Tools — Convert, Hash & Track
Essential utilities for crypto conversion, hashing, and blockchain tracking. No signup required.
Wallet & Address (18)
Ethereum Address Validator
Validate ETH addresses & checksums
Bitcoin Address Validator
Validate BTC addresses (P2PKH, P2SH, Bech32)
Solana Address Validator
Validate Solana Base58 addresses
SoonMulti-Chain Address Formatter
Format addresses across chains
Address Checksum Tool EIP-55
Apply EIP-55 mixed-case checksum
SoonWallet Address QR Code Generator
Generate QR codes for addresses
SoonVanity Address Pattern Checker
Check vanity address patterns locally
SoonHD Wallet Path BIP-44 Explorer
Explore BIP-44 derivation paths
SoonMnemonic Seed Phrase Word List Reference
Browse BIP-39 wordlist
SoonSeed Phrase Validator BIP-39
Validate BIP-39 mnemonics
SoonPrivate Key to Address Converter
Educational private key → address
SoonPublic Key Compressor Decompressor
Compress/decompress secp256k1 keys
SoonAddress Balance Log Manual
Log balances manually
SoonMulti-Wallet Organizer
Organize wallets locally
SoonCold Wallet Checklist Builder
Build cold-storage checklists
SoonWallet Activity Snapshot
Coming soon
SoonMulti-Sig Setup Reference
Coming soon
SoonWallet Recovery Drill Planner
Coming soon
Transaction (14)
Transaction Hash Decoder
Decode tx hashes manually
SoonRaw Transaction Inspector Hex
Inspect raw tx hex
SoonGas Price Reference Tool
Gas price reference
SoonGas Limit Estimator Reference
Gas limit reference
Gas Fee Calculator
Calculate gas fees manually
SoonTransaction Nonce Tracker
Track tx nonces locally
SoonEIP-1559 Fee Structure Visualizer
Visualize EIP-1559 fees
SoonBase Fee Plus Priority Fee Explainer
Explain base + priority fees
SoonTransaction Finality Reference
Finality concepts reference
SoonTransaction Receipt Decoder
Decode receipts manually
SoonMempool Concept Explainer
Coming soon
SoonReplace-By-Fee (RBF) Reference
Coming soon
SoonTransaction Type Identifier
Coming soon
SoonCross-Chain Tx Mapping Tool
Coming soon
Smart Contract (20)
ABI Encoder
Encode function calls (ABI)
SoonABI Decoder
Decode ABI-encoded data
Function Signature Generator
Generate 4-byte selectors
Event Topic Hash Generator
Generate event topic0 hashes
Keccak-256 Hash Tool
Compute keccak-256 hashes
SoonEVM Opcode Reference Browser
Browse EVM opcodes
SoonSolidity Function Selector Database
Lookup function selectors
SoonContract ABI Formatter
Pretty-print JSON ABIs
SoonABI to TypeScript Type Generator
Generate TS types from ABI
SoonSmart Contract Event Log Decoder
Decode event logs manually
SoonERC-20 Token Spec Reference
ERC-20 reference
SoonERC-721 Token Spec Reference
ERC-721 reference
SoonERC-1155 Token Spec Reference
ERC-1155 reference
SoonEIP Reference Browser
Browse EIPs
SoonContract Bytecode Inspector
Inspect bytecode basics
SoonStorage Slot Calculator
Coming soon
SoonProxy Pattern Reference
Coming soon
SoonReentrancy Pattern Checker
Coming soon
SoonConstructor Argument Decoder
Coming soon
SoonSolidity Version Compatibility Matrix
Coming soon
Cryptography (15)
secp256k1 Key Generator
Generate secp256k1 keys locally
SoonECDSA Signature Verifier
Verify ECDSA signatures
SHA-256 Blockchain Hash Tool
Compute SHA-256 hashes
SoonRIPEMD-160 Address Hash Tool
Compute RIPEMD-160 hashes
SoonMerkle Tree Visualizer
Visualize merkle trees
SoonMerkle Proof Verifier
Verify merkle proofs
SoonPBKDF2 Key Derivation Tool
Derive keys with PBKDF2
SoonBIP-39 Wordlist Browser
Browse BIP-39 words
SoonBIP-32 Path Visualizer
Visualize BIP-32 paths
SoonBIP-44 Derivation Path Builder
Build BIP-44 paths
SoonSchnorr Signature Reference
Coming soon
SoonBLS Signature Reference
Coming soon
SoonZero-Knowledge Proof Concept Tool
Coming soon
SoonCommitment Scheme Visualizer
Coming soon
SoonBloom Filter Visualizer
Coming soon
DeFi (15)
Liquidity Pool Share Calculator
Calculate LP share %
SoonImpermanent Loss Visualizer
Visualize impermanent loss
APR vs APY Converter DeFi
Convert APR ↔ APY
SoonYield Farming Strategy Template
Yield farming planner
SoonLP Token Estimator
Estimate LP tokens
SoonSlippage Impact Tool
Estimate slippage impact
SoonDeFi Risk Assessment Checklist
Assess DeFi risk
SoonRug Pull Red Flag Checklist
Spot rug-pull signals
SoonProtocol Comparison Matrix
Compare protocols
SoonDeFi Glossary Reference Browser
Browse DeFi terms
SoonStablecoin Comparison Matrix
Coming soon
SoonLending Protocol Calculator
Coming soon
SoonBorrow Health Factor Estimator
Coming soon
SoonVault Strategy Planner
Coming soon
SoonPerp Funding Rate Reference
Coming soon
NFT (15)
NFT Metadata Formatter JSON
Format NFT metadata JSON
SoonNFT Attribute Rarity Estimator
Estimate trait rarity
SoonNFT Collection Planning Template
Plan NFT collections
SoonNFT Trait Combination Counter
Count trait combinations
SoonIPFS URI Formatter
Format ipfs:// URIs
SoonNFT Royalty Calculator
Calculate royalties
SoonNFT Gas Cost Estimator
Estimate mint gas costs
SoonERC-721 Metadata Schema Builder
Build ERC-721 schema
SoonNFT Whitelist Organizer
Organize whitelists
SoonNFT Launch Checklist Builder
Build launch checklist
SoonNFT Floor Tracking Log
Coming soon
SoonGenerative Art Trait Planner
Coming soon
SoonNFT Marketplace Comparison
Coming soon
SoonMint Phase Planner
Coming soon
SoonMetadata Reveal Scheduler
Coming soon
Portfolio (15)
Crypto Portfolio Tracker
Local CSV portfolio tracker
SoonMulti-Coin Holdings Log
Log multi-coin holdings
SoonAcquisition Price Log
Log acquisition prices
SoonCost Basis Calculator FIFO LIFO
FIFO/LIFO cost basis
SoonRealized vs Unrealized PnL Tracker
Track realized/unrealized P&L
SoonStaking Rewards Log
Log staking rewards
SoonAirdrop Log
Log airdrops
SoonDCA Investment Log
Log DCA buys
SoonTax Event Identifier
Identify taxable events
SoonTax Summary Builder
Build offline tax summaries
SoonWallet Cohort Tracker
Coming soon
SoonStablecoin Allocation Log
Coming soon
SoonRebalancing Planner
Coming soon
SoonRealized Yield Log
Coming soon
SoonWash Sale Concept Reference
Coming soon
Education (17)
Blockchain Block Structure Visualizer
Visualize block structure
SoonProof of Work Concept Demonstrator
Demo proof-of-work
SoonProof of Stake Concept Explainer
Visual PoS explainer
SoonConsensus Mechanism Comparison Tool
Compare consensus mechanisms
SoonHash Rate Reference Tool
Hash rate reference
SoonBlockchain Fork Explainer
Visual fork explainer
SoonLayer 1 vs Layer 2 Comparison Matrix
Compare L1/L2
SoonCross-Chain Bridge Reference
Bridge reference
SoonGas Optimization Reference
Gas optimization tips
SoonNetwork Fee Comparison Tool
Compare network fees
SoonMining Difficulty Reference
Coming soon
SoonBitcoin Halving Reference
Coming soon
SoonEthereum Upgrade History
Coming soon
SoonRollup Reference (Optimistic vs ZK)
Coming soon
SoonMEV Concept Explainer
Coming soon
SoonWallet Security 101
Coming soon
SoonPhishing Pattern Reference
Coming soon
Utilities (41)
Hex to Decimal Converter Ethereum
Convert hex ↔ decimal
Wei to ETH Unit Converter
Convert wei ↔ ETH
Gwei to ETH Converter
Convert gwei ↔ ETH
Satoshi to Bitcoin Converter
Convert sats ↔ BTC
Token Decimal Normalizer
Normalize token decimals
SoonUnix Timestamp to Block Reference
Timestamp → block reference
SoonBlockchain Unit Reference Browser
Browse blockchain units
SoonToken Supply Dilution Estimator
Estimate supply dilution
SoonBlock Reward Reference
Block reward reference
SoonCrypto Glossary Browser
Browse crypto glossary
SoonLovelace to ADA Converter
Coming soon
SoonLamport to SOL Converter
Coming soon
SoonPlank to DOT Converter
Coming soon
SoonDrop to XRP Converter
Coming soon
SoonAtom Micro Unit Converter
Coming soon
SoonStroop to XLM Converter
Coming soon
SoonCosmos Unit Reference
Coming soon
SoonAddress Length Reference Browser
Coming soon
SoonBIP Number Lookup
Coming soon
SoonChain ID Reference
Coming soon
SoonRPC Method Reference Browser
Coming soon
SoonWebSocket Subscription Reference
Coming soon
SoonBlock Time Reference Tool
Coming soon
SoonNetwork Status Page Reference
Coming soon
SoonGenesis Block Reference
Coming soon
SoonAddress Format Identifier
Coming soon
SoonHash Length Identifier
Coming soon
SoonToken Symbol Lookup Sheet
Coming soon
SoonWallet Naming Convention Tool
Coming soon
SoonHardware Wallet Comparison
Coming soon
SoonBackup Strategy Checklist
Coming soon
SoonRecovery Phrase Storage Planner
Coming soon
SoonPassphrase Strength Reference
Coming soon
SoonOPSEC Checklist for Crypto
Coming soon
SoonCold Storage Migration Planner
Coming soon
SoonCrypto Travel Checklist
Coming soon
SoonCrypto Tax Region Reference
Coming soon
SoonBlock Explorer Comparison
Coming soon
SoonBridge Safety Checklist
Coming soon
SoonExchange Withdrawal Checklist
Coming soon
SoonApproval Revocation Reminder
Coming soon