Base32 to Text Converter
Decode Base32 encoded data to plain text/ASCII
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Base32 Decoding Principle
Base32 → 5 bits/char, pad to 40 bits
RFC 4648 alphabet A-Z, 2-7
Group 5-bit → 8-bit bytes
Decode Base32 (RFC 4648) to ASCII text. Base32 uses 5 bits per character, padding to 40 bits for 5-byte blocks.
⚠
Valid characters: A-Z, 2-7, padding = (optional). Ignore whitespace/whitespace case-insensitive.
What is Base32?
Base32 is a binary-to-text encoding using 32 characters (5 bits per character, RFC 4648.
5 Bits/Char
Each character 5 bits, 8 chars = 40 bits = 5 bytes.
Case Insensitive
A-Z and a-z are equivalent.
URL Safe
No special characters, safe for URLs.
Padding
Uses = for padding to 40-bit blocks.
💡 Teaching Example: JBSWY3DP → "Hello".
Applications
Data Encoding
URLs
Cryptography
DNS
Frequently Asked Questions
What is Base32 encoding?▼
Base32 is a binary-to-text encoding using 32 characters, typically A-Z and 2-7, with optional padding.
How to decode Base32?▼
Each Base32 characters map to 5-bit values, grouped into bytes for ASCII.
Base32 vs Base64?▼
Base32 uses 5 bits per character vs Base64 6 bits. Base32 is case-insensitive and URL-safe.
What characters are in Base32?▼
RFC 4648 Base32 uses A-Z and 2-7, padding with = characters.
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