The Perl Toolchain Summit needs more sponsors. If your company depends on Perl, please support this very important event.


Convert::Base32 - Encoding and decoding of base32 strings


  use Convert::Base32;

  $encoded = encode_base32("\x3a\x27\x0f\x93");
  $decoded = decode_base32($encoded);


This module provides functions to convert string from / to Base32 encoding, specified in RACE internet-draft. The Base32 encoding is designed to encode non-ASCII characters in DNS-compatible host name parts.

See for more details.


Following functions are provided; like MIME::Base64, they are in @EXPORT array. See Exporter for details.


Encode data by calling the encode_base32() function. This function takes a string to encode and returns the encoded base32 string.


Decode a base32 string by calling the decode_base32() function. This function takes a string to decode and returns the decoded string.

This function might throw the exceptions such as "Data contains non-base32 characters", "Length of data invalid" and "PADDING number of bits at the end of output buffer are not all zero".


Tatsuhiko Miyagawa <>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO, MIME::Base64, Convert::RACE.

1 POD Error

The following errors were encountered while parsing the POD:

Around line 147:

You forgot a '=back' before '=head1'