Base32 Encoder and Decoder [2025]

What is Base32?

Base32 is an encoding scheme that converts binary data into a text representation using a 32-character alphabet. It is often used when case-insensitivity is required.

What are the different Base32 variants?

This tool supports:

• RFC 4648: The standard Base32 alphabet (A-Z, 2-7).
• RFC 4648 (Hex): Uses 0-9 and A-V, often used for hexadecimal representations.
• z-base-32: Designed for human readability, avoiding similar-looking characters.
• Crockford's Base32: Also designed for human readability, excluding I, L, O, and U.

Why use Base32 instead of Base64?

Base32 is useful in situations where case-insensitivity is required or where the larger character set of Base64 is undesirable. Some Base32 variants are also designed for better human readability.

How does padding work in Base32?

Base32 often uses '=' characters for padding to ensure the output length is a multiple of 8. This tool allows you to include or omit padding during encoding.

How are invalid characters handled during decode?

If preserve is enabled, the converter will skip over characters that aren't part of the expected base32 alphabet and attempt to decode the rest. If it is disabled, it will raise an exception.

Is Base32 encryption?

No, Base32 is an encoding scheme, not encryption. It provides no security.

Is my data secure?

All processing is done client-side within your browser. No data is sent to any server.