Free · open source · no tracking
Free, Open Source
Utility Tools
No signup. No tracking. Nothing leaves your machine.
4 tools live·MIT licensed
Tools — 04
QR
QR Code Generator
Custom QR codes for URLs, WiFi, crypto wallets, and social profiles.
RC
Onchain Receipt Generator
Turn any blockchain transaction into a clean PDF receipt or shareable image. Supports Ethereum, Base, BSC, and Solana.
77NEW
EIP-7702 Delegation Checker
Is your EOA silently delegated to a smart contract? Paste any Ethereum address and find out — plus flag known phishing/sweeper delegates.
SVNEW
Ethereum Signature Verifier
Verify a signature against an address across all five mechanisms — EOA, ERC-1271, EIP-6492, EIP-7702, and Safe. When it fails, see exactly why.