Base32, Base58 & Base85 Encoder / Decoder

Encode and decode text with Base32, Base58 (Bitcoin), Ascii85, Base36, Base64URL or hex.

What is the difference between Base32, Base58 and Base64?

They are ways to write binary data as text. Base32 uses A–Z and 2–7 and is case-insensitive (used for 2FA secrets); Base58 drops look-alike characters 0, O, I and l (used for Bitcoin addresses); Base64 is the most compact common one; Base85 (Ascii85) is about 25% shorter than Base64.

Size overhead

Encoding	Output size vs input
Hex	200%
Base32	160%
Base58	≈137%
Base64 / Base64URL	≈133%
Base85	125%

For standard Base64, use the Base64 Encoder / Decoder.

Frequently asked questions

Is Base32 encryption?

No, any encoding can be decoded by anyone.

Which Base58 alphabet is used?

The Bitcoin alphabet.

Is my text uploaded?

No.