Crypto/Txid
Comparator
Compare addresses or transaction IDs — 100% offline
Security info
100% offline. This page makes zero network calls after loading. No external fonts, no analytics, no telemetry. All comparisons are done client-side.
Constant-time comparison. Uses
crypto.subtle.timingSafeEqual with XOR fallback to prevent timing attacks.
Checksum validation. Ethereum addresses are validated against EIP-55 (Keccak-256). Bitcoin addresses are validated against Base58Check (double SHA-256).
Unicode normalization. Inputs are normalized via NFKC to prevent homoglyph attacks (e.g. Cyrillic characters disguised as Latin).
Crypto Address / Txid Comparator
Compare addresses or transaction IDs character by character. Supports Bitcoin, Ethereum, Monero addresses and txids.
Both fields must be non-empty to compare.