Formatting Characters Client Support

Revision 0.01

Special characters are used to denote formatting on IRC. These are described on this page.

This table displays how clients handle each character, and (hopefully) give a sense of how widespread each one is.

This file is intended to be a useful resource for people implementing IRC software and is not an authoritative source.
It is kept up-to-date and correct on a best-effort basis. Feel free to check out the other files maintained here.

Updates? Corrections? Please submit an issue or a pull request on the Github repo or talk to us at #ircdocs on Freenode. Thank you!

Tested Clients:
AdiIRC 2.7, BitchX 1.2.1, Hexchat 2.12.4, IceChat 9.15, Instantbird 1.5, IRCCloud (2017-08-05), irssi 0.8.20, KiwiIRC (2017-07-09), Konversation 1.6 (#4910), KVIrc 4.9.2, The Lounge v2.7.0, mIRC 7.48, Quassel 0.12.4 (90183ee), WeeChat 1.7

Char Caret Feature Support from tested clients Supported Clients Comments
0x02 ^B Bold 100% AdiIRC, BitchX, Hexchat, IceChat, Instantbird, IRCCloud, irssi, KiwiIRC, Konversation, KVIrc, The Lounge, mIRC, Quassel, WeeChat
0x03 ^C mIRC Color 100% AdiIRC, BitchX, Hexchat, IceChat, Instantbird, IRCCloud, irssi, KiwiIRC, Konversation, KVIrc, The Lounge, mIRC, Quassel, WeeChat
0x04 ^D Hex Color ~20% AdiIRC, IRCCloud, The Lounge
0x11 ^Q Monospace IRCCloud, The Lounge
0x12 ^R Reverse Color 0%

Also see 0x16 (Reverse Color).

0x16 ^V Reverse Color 54% BitchX, Hexchat, IRCCloud, Irssi, Konversation, KVIrc, The Lounge, WeeChat mIRC doesn't do reverse color but forces the whole rest of the line to be dark-on-light, even if other color codes are given after this character.

Also see 0x12 (Reverse Color).

0x16 ^V Italics 0%

Also see 0x1D (Italics).

0x1E ^^ Strikethrough Textual, IRCCloud, The Lounge
0x0F ^O Reset
0x1D ^] Italics 92% AdiIRC, Hexchat, IceChat, Instantbird, IRCCloud, Irssi, KiwiIRC, Konversation, KVIrc, The Lounge, mIRC, Quassel, WeeChat

Also see 0x16 (Italics).

0x1F ^_ Underline 100% AdiIRC, BitchX, HexChat, IceChat, Instantbird, IRCCloud, Irssi, KiwiIRC, Konversation, KVIrc, The Lounge, mIRC, Quassel, WeeChat