Web3 & Crypto

12 free tools

Bitcoin validators, APY/APR, DCA, staking rewards, seed phrase & portfolio calculators -- DeFi made simple.

5

Crypto Calculators

DCA, crypto tax, staking rewards, APY/APR and portfolio rebalancer.

APY ↔ APR ConverterDCA CalculatorStaking Rewards Calculator
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4

Crypto Converters

Satoshi to BTC, ETH units, crypto denomination and payment QR.

Satoshi ↔ BTC ConverterETH Unit ConverterCrypto Payment QR Generator
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3

Validators & Security

Ethereum, Bitcoin address validators and BIP39 seed phrase checker.

Ethereum Address ValidatorBitcoin Address ValidatorBIP39 Seed Phrase Validator
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Why Use Our DeFi and Crypto Calculators?

Cryptocurrency calculations involve wallet addresses, seed phrases, and portfolio data that should never be exposed to third-party servers. Our crypto tools process everything client-side for maximum security.

From validating Bitcoin and Ethereum addresses to calculating staking rewards and DCA strategies, each tool is built for the DeFi community's privacy-first mindset. Your seed phrase checker runs entirely in your browser.

These tools are designed for quick reference and calculation, not for storing or managing assets. They complement hardware wallets and portfolio trackers by providing instant, private computations.

Frequently Asked Questions