The Base58 Encoder / Decoder converts text and bytes to and from Base58 using the Bitcoin alphabet (123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz), which drops the easily-confused characters 0, O, I and l.

Base58 is used by Bitcoin addresses, crypto wallets and other systems that need compact, copy-friendly encodings. Leading zero bytes are preserved with the 1 character, matching the standard implementation. All conversion happens locally in your browser - no data is ever uploaded.