Web3 & Crypto Tools

Convert Crypto Price accurately, with results updating as you type.

Convert Crypto Currency accurately, with results updating as you type.

Work out Crypto Profit in seconds with a clear, step-by-step breakdown.

Work out Crypto Percentage in seconds with a clear, step-by-step breakdown.

Work out Crypto ROI in seconds with a clear, step-by-step breakdown.

Work out Crypto DCA in seconds with a clear, step-by-step breakdown.

Work out Crypto Market Cap in seconds with a clear, step-by-step breakdown.

Check Wallet Address for errors and see exactly where the problem is.

Format and beautify Wallet Address into clean, readable output in one click.

Generate Wallet QR instantly with sensible, copy-ready defaults.

Work out Gas Fee in seconds with a clear, step-by-step breakdown.

Convert Gas Fee accurately, with results updating as you type.

Convert Block Time accurately, with results updating as you type.

Check Ethereum Address for errors and see exactly where the problem is.

ERC-20 Token Information — a free ethereum tool in the Tools4U Web3 & Crypto Tools collection.

Check Bitcoin Address for errors and see exactly where the problem is.

Work out Bitcoin Fee in seconds with a clear, step-by-step breakdown.

Generate Bitcoin QR instantly with sensible, copy-ready defaults.

Check Solana Address for errors and see exactly where the problem is.

Solana Token Information — a free solana tool in the Tools4U Web3 & Crypto Tools collection.

Decode ABI safely in your browser — nothing is uploaded.

Format and beautify ABI into clean, readable output in one click.

Encode ABI correctly for safe use in code and URLs.

Decode Hex safely in your browser — nothing is uploaded.

Encode Hex correctly for safe use in code and URLs.

Convert Ethereum Unit accurately, with results updating as you type.

Convert Wei to ETH accurately, with results updating as you type.

Convert Gwei to ETH accurately, with results updating as you type.

Format and beautify Solidity into clean, readable output in one click.

Solidity Function Selector — a free web3 developer tool in the Tools4U Web3 & Crypto Tools collection.

Keccak-256 Hash — a free web3 developer tool in the Tools4U Web3 & Crypto Tools collection.

Contract Address Checksum — a free web3 developer tool in the Tools4U Web3 & Crypto Tools collection.

Decode Ethereum Calldata safely in your browser — nothing is uploaded.