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IDN2(1)				 User Commands			       IDN2(1)

NAME
       idn2 - Libidn2 Internationalized	Domain Names conversion	tool

SYNOPSIS
       idn2 [OPTION]...	[STRINGS]...

DESCRIPTION
       The  idn2  tool converts	DNS domains from UTF-8 to ASCII	compatible en-
       coding (ACE) form, as used in the DNS protocol. The encoding format  is
       the Internationalized Domain Name (IDNA2008/TR46) format.

       Internationalized  Domain  Name (IDNA2008) convert STRINGS, or standard
       input.

       Command line interface to the Libidn2 implementation of IDNA2008.

       All strings are expected	to be encoded in the locale charset.

       To process a string that	starts with `-', for example `-foo', use  `--'
       to signal the end of parameters,	as in `idn2 --quiet -- -foo'.

       Mandatory  arguments  to	 long  options are mandatory for short options
       too.

       -h, --help
	      Print help and exit

       -V, --version
	      Print version and	exit

       -d, --decode
	      Decode (punycode)	domain name

       -l, --lookup
	      Lookup domain name (default)

       -r, --register
	      Register label

       -T, --tr46t
	      Enable TR46 transitional processing

       -N, --tr46nt
	      Enable TR46 non-transitional processing

       --no-tr46
	      Disable TR46 processing

       --usestd3asciirules
	      Enable STD3 ASCII	rules

       --no-alabelroundtrip
	      Disable A-label roundtrip	for lookups

       --debug
	      Print debugging information

       --quiet
	      Silent operation

AUTHOR
       Written by Simon	Josefsson, Tim Ruehsen.

REPORTING BUGS
       Report bugs to: help-libidn@gnu.org
       Libidn2 home page: <https://www.gnu.org/software/libidn/#libidn2>
       General help using GNU software:	<https://www.gnu.org/gethelp/>

COPYRIGHT
       Copyright (C) 2011-2025 Simon Josefsson,	Tim Ruehsen.  License  GPLv3+:
       GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
       This  is	 free  software:  you  are free	to change and redistribute it.
       There is	NO WARRANTY, to	the extent permitted by	law.

SEE ALSO
       idn(1)

       The full	documentation for idn2 is maintained as	a Texinfo manual.   If
       the  info  and  idn2  programs are properly installed at	your site, the
       command

	      info idn2

       should give you access to the complete manual.

Libidn2	2.3.8			  March	2025			       IDN2(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=idn2&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

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