| Internationalized Domain Names (IDN) implementation | |
| https://www.gnu.org/software/libidn/ | |
| libidn-1.42 | GPL-2 GPL-3 LGPL-3 |
| download~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris | gentoo |
| libidn-1.29 | GPL-2 GPL-3 LGPL-3 java? ( Apache-2.0 ) |
| downloadamd64 x86 | argent-main |
| libidn-1.28 | GPL-2 GPL-3 LGPL-3 java? ( Apache-2.0 ) |
| downloadamd64 x86 | argent-main |