Base32 Encoder/Decoder Online | RFC 4648 Base32 Tool
Online Base32 encoding and decoding tool. Convert data to Base32 format following RFC 4648 standard. Support standard and hex variants.
Base32 Encoder/Decoder
Instructions
- Encode text to Base32 format
- Decode Base32 strings back to text
- Supports Standard (A-Z, 2-7) and Hex (0-9, A-V) variants
Base32 Knowledge
What is Base32?
Base32 is a transfer encoding using a 32-character set, often A-Z and 2-7.
Comparison with Base64
Base32 is case-insensitive and avoids ambiguous characters (like 1, l, I, 0, O), making it safer for human use.
Key Features
- Case-insensitive
- Human-readable and robust against transcription errors
- ~20% less efficient than Base64
Common Applications
- TOTP (Two-Factor Authentication) secrets
- File systems requiring case-insensitive names
- Tor onion addresses
- Legacy systems