This article's factual accuracy may be compromised due to out-of-date information.(August 2012) |
This article may need to be rewritten to comply with Wikipedia's quality standards.(November 2022) |
The following tables compare general and technical information between a number of notable IRC client programs which have been discussed in independent, reliable prior published sources.
Basic general information about the notableclients: creator/company, license, etc. Clients listed on a light purple background are no longer in active development.
A brief overview of the release history.
| First public release | First stable release | Latest stable release | |||
|---|---|---|---|---|---|
| Client | Date | Version | Date | Version | |
| AmIRC | 1995 | ||||
| Bersirc | 1999 | 2.2.14 (12 August 2005) [±] | |||
| BitchX | 1996 | 1.2.1 (November 14, 2014) [±] | |||
| ChatZilla | 2001 | 0.9.93 (November 8, 2016 [6] ) [±] | |||
| Colloquy | 2005 | 2.4.3 (6011) (March 22, 2014) [±] | |||
| DMDirc | 2007 | 0.7 (January 5, 2013 [7] ) [±] | |||
| ERC | 1999? | ERC improvements are now released as part of Emacs. [±] | |||
| HexChat | 2009-10-04 | r249 | 2009-10-09 | 2.86.0 | 2.16.2 [8] [9] |
| ircII | 1989 | 2.0.0 | 1989 | 2.0.0 | 20240918 (September 18, 2024) [±] |
| Ircle | 1995 | 3.5a6 (November 17, 2007) [±] | |||
| Irssi | 1999 | 1.4.4 (March 31, 2023) [±] [10] | |||
| KVIrc | 1998 | 0.6.0 | 1999-12-21 | 1.0.0 | 5.2.0 (January 14, 2024 [11] ) [±] |
| Konversation | 2002 | 1.10.24083 [12] | |||
| LeafChat | ? | 1.0 | 2.5 (July 29, 2012) [±] | ||
| Linkinus | 2007 | 2.4.3 (August 23, 2011 [13] ) [±] | |||
| Mibbit | 2008 | web application, no version | |||
| mIRC | 1995 | 7.81 (9 April 2025 [14] ) [±] | |||
| Nettalk | 2004 | 6.7.16 (October 30, 2012 [15] ) [±] | |||
| PIRCH | 1995 | 1.0.1.1190 (January 1, 2001) [±] | |||
| PJIRC | 2002 | 2.2.1 (November 29, 2004) [±] | |||
| Quassel | 2008-08-27 | 0.3.0 | 0.14.0 (January 1, 2022) [±] | ||
| rcirc | ? | ? | rcirc improvements are now released as part of Emacs. [±] | ||
| Smuxi | 2008-07-29 | 0.6 | 2010-09-03 | 0.8 | 1.2.1 (April 23, 2023) [±] |
| Snak | 1997 | 5.3.4 (March 11, 2012 [16] ) [±] | |||
| Visual IRC | 1995 | 2.0pl2 (December 30, 2007) [±] [17] | |||
| WeeChat | 2003 | 4.7.0 (July 19, 2025 [18] ) [±] | |||
| Client | Date | Version | Date | Version | Latest stable release |
| First public release | First stable release | ||||
The operating systems on which the clients can run natively (without emulation).
| Client | Windows 7, Vista | XP, 2000 | NT 4.0 | NT 3.x | Me, 98 | 95 | 3.1x | ReactOS | macOS (Intel/PPC) | OS 9 | OS 8 | System 7 (PPC/68k) | BeOS, Haiku | OS/2, eCS, ArcaOS | AmigaOS (68k) | AmigaOS 4, MorphOS (PPC) | DOS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AmIRC | No | No | No | No | No | No | No | No | No | No | No | No | No | No | Yes | Yes | No |
| Bersirc | Yes | Yes | ? | No | ? | ? | No | ? | ? | No | No | No | No | No | No | No | No |
| BitchX | Yes [Note 1] | Yes [Note 1] | Yes [Note 1] | No | Yes [Note 1] | Yes [Note 1] | No | ? | Yes | No | No | No | ? | Yes | Yes | Yes | No |
| ChatZilla | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ? | Yes | No |
| Colloquy | No | No | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No |
| ERC | Yes | Yes [21] | Yes | Yes | Yes | Yes | Yes | ? | Yes | No | No | No | Yes [22] | Yes [23] | ? | ? | Yes [24] |
| HexChat | Yes | Dropped (2.9.5) | No | No | No | No | No | No | No | No | No | No | ? | No | No | No | No |
| ircII | Yes [Note 1] | Yes [Note 1] | Yes [Note 1] | No | Yes [Note 1] | Yes [Note 1] | No | ? | Yes | No | No | No | No | No | No | ? | No |
| Ircle | No | No | No | No | No | No | No | No | Yes [Note 2] | Yes | Yes | Yes | No | No | No | No | No |
| Irssi | Yes | Yes | Yes | No | Yes | Yes | No | ? | Yes | No | No | No | Yes | Yes | ? | Yes | No |
| Konversation | Partial | Partial | Partial | No | Partial | Partial | No | ? | Partial | No | No | No | No | No | No | No | No |
| KVIrc | Yes | Yes | Yes | No | Yes | No | No | Yes [25] | Yes | Yes | No | No | No | Yes [26] | No | No | No |
| LeafChat | Yes | Yes | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No |
| Linkinus | No | No | No | No | No | No | No | No | Yes [Note 2] | No | No | No | No | No | No | No | No |
| Mibbit | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
| mIRC | Yes | Yes | Yes | Partial | Yes | Yes | Partial | ? | No | No | No | No | No | No | No | No | No |
| Nettalk | Yes | Yes | ? | No | Yes | No | No | ? | No | No | No | No | No | No | No | No | No |
| PIRCH | Yes | Yes | Yes | ? | Yes | Yes | Yes | ? | No | No | No | No | No | No | No | No | No |
| PJIRC | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | Yes | Yes | No | No | No | No |
| Quassel | Yes | Yes | No | No | No | No | No | No | Yes | No | No | No | No | Yes | No | No | No |
| rcirc | Yes | Yes | ? | ? | No | No | No | No | Yes | No | No | No | No | No | No | No | No |
| Smuxi | Yes | Yes | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No |
| Snak | No | No | No | No | No | No | No | No | Yes | Yes | Yes | ? | No | No | No | No | No |
| Visual IRC | Yes | Yes | Yes | No | Yes | Yes | No | ? | No | No | No | No | No | No | No | No | No |
| WeeChat | Partial [Note 1] | Partial [Note 1] | Partial [Note 1] | No | Partial [Note 1] | Partial [Note 1] | No | ? | Yes | No | No | No | Partial | No | No | No | No |
| Client | Windows 7, Vista | XP, 2000 | NT 4.0 | NT 3.x | Me, 98 | 95 | 3.1x | ReactOS | OS X (Intel/PPC) | OS 9 | OS 8 | System 7 (PPC/68k) | BeOS, Haiku | OS/2, eCS | AmigaOS (68k) | AmigaOS 4, MorphOS (PPC) | DOS |
Unix and Unix-like operating systems:
| Client | 386BSD | BSD/OS (BSD/386, BSDI) | FreeBSD, NetBSD, OpenBSD | SunOS | ULTRIX | AIX | A/UX | HP-UX | IRIX | SCO OpenServer | Solaris | UnixWare | Linux | NeXTSTEP | OpenVMS | OSF/1 | QNX | Tru64 UNIX |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bersirc | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | Yes | ? | No | ? | ? | ? |
| BitchX | ? | Yes [Note 1] | Yes [Note 1] | Yes [Note 1] | Yes [Note 1] | Yes [Note 1] | ? | Yes [Note 1] | Yes [Note 1] | ? | Yes [Note 1] | Yes | Yes [Note 1] | Yes | ? | Yes [Note 1] | Yes [Note 1] | ? |
| ChatZilla | No | No | Yes | Yes | No | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | No | Yes | Yes |
| Colloquy | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| ERC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| HexChat | ? | ? | Yes | Yes | ? | Yes | ? | Yes | Yes | ? | Yes | ? | Yes | ? | ? | ? | ? | Yes |
| ircII | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ? | Yes | Yes | ? | Yes | Yes | Yes |
| Ircle | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Irssi | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
| Konversation | ? | ? | Yes | ? | ? | ? | ? | ? | ? | ? | Yes | ? | Yes | ? | ? | ? | ? | Yes |
| KVIrc | ? | ? | Yes | ? | ? | ? | ? | ? | ? | ? | Yes | ? | Yes | ? | ? | ? | ? | ? |
| LeafChat | No | No | No | No | No | No | No | No | No | No | No | No | Yes | No | No | No | No | No |
| Linkinus | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Mibbit | ? | ? | Yes | Yes | Yes | Yes | ? | Yes | Yes | Yes | Yes | Yes | Yes | ? | Yes | ? | ? | Yes |
| mIRC | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Nettalk | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| PIRCH | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| PJIRC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Quassel | ? | ? | Yes | ? | ? | ? | ? | ? | ? | ? | Yes | ? | Yes | ? | ? | ? | ? | ? |
| rcirc | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Smuxi | ? | ? | Yes | ? | ? | ? | ? | ? | ? | ? | Yes | ? | Yes | ? | ? | ? | ? | ? |
| Snak | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Visual IRC | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| WeeChat | ? | ? | Yes [Note 2] | ? | ? | ? | ? | Yes | Partial [Note 3] | ? | Yes [Note 2] | ? | Yes | ? | ? | ? | Yes [Note 2] | ? |
| Client | 386BSD | BSD/OS (BSD/386, BSDI) | FreeBSD, NetBSD, OpenBSD | SunOS | ULTRIX | AIX | A/UX | HP-UX | IRIX | SCO OpenServer | Solaris | UnixWare | Linux | NeXTSTEP | OpenVMS | OSF/1 | QNX | Tru64 UNIX |
What IRC related protocols and standards are supported by each client.
| Client | IPv6 | SSL | TLS | DANE | OCSP | CRL | SASL | OTR |
|---|---|---|---|---|---|---|---|---|
| Bersirc | No | No | ? | ? | ? | ? | ? | No |
| BitchX | Yes | Yes | Yes | ? | ? | ? | ? | No |
| ChatZilla | Yes | Yes | Yes | ? | Yes | Yes | script | No |
| Colloquy | Yes | Yes | ? | ? | ? | ? | Yes | No [28] |
| ERC | Yes | Yes | Yes | ? | ? | ? | Yes [Note 1] | No |
| HexChat | Yes | Yes | Yes | No | No | No | Yes | Yes [Note 2] |
| ircII | Yes | Yes | Yes | ? | ? | ? | ? | No |
| Ircle | ? | Yes | ? | ? | ? | ? | ? | No |
| Irssi | Yes | Yes | Yes | Yes | No | ? | Yes | Yes [29] |
| Konversation | Yes | Yes | Yes | ? | ? | ? | Yes | No |
| KVIrc | Yes | Yes | Yes | ? | No | No | Yes | No |
| Linkinus | No | Yes | ? | ? | ? | ? | No | No |
| Mibbit | No | Yes | ? | ? | ? | ? | Yes | No |
| mIRC | Yes | Yes | Yes | ? | ? | ? | Yes | No |
| Nettalk | No | No | ? | ? | ? | ? | ? | No |
| PIRCH | No | No | ? | ? | ? | ? | ? | No |
| PJIRC | No | No | ? | ? | ? | ? | ? | No |
| Quassel | Yes | Yes | Yes | ? | No | No | Yes | No [30] |
| rcirc | No | Yes | Yes | ? | ? | ? | ? | No |
| Smuxi | Yes | Yes | ? | ? | ? | ? | No | No [31] |
| Snak | Yes | Yes | ? | ? | ? | ? | ? | No |
| Visual IRC | No | No | ? | ? | ? | ? | ? | No |
| WeeChat | Yes | Yes | Yes | ? | ? | ? | Yes | Yes [32] [33] [Note 2] |
| Client | IPv6 | SSL | TLS | DANE | OCSP | CRL | SASL | OTR |
The Direct Client-to-Client Protocol (DCC) has been the primary method of establishing connections directly between IRC clients for a long time now. Once established, DCC connections bypass the IRC network and servers, allowing for all sorts of data to be transferred between clients including files and direct chat sessions.
| Client | CHAT | SEND | RESUME | TSEND | SEND T | XMIT | Passive DCC | Server | RDCC | REVERSE | RSEND | Reverse / Firewall DCC | File servers (FSERVs) | XDCC | VOICE | Whiteboard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bersirc | ? | ? | ? | ? | ? | ? | No | No | ? | ? | ? | ? | ? | ? | ? | ? |
| BitchX | Yes | Yes | Yes | Yes | Yes | ? | No | No | ? | ? | ? | ? | ? | Yes | ? | No |
| ChatZilla | Yes | Yes | No [34] | ? | ? | No | No [Note 1] | No | No | No | No | No | No | ? | ? | No |
| Colloquy | Yes | Yes | Yes | ? | ? | ? | Yes | No | ? | ? | ? | ? | ? | Yes | ? | ? |
| ERC | Yes | Yes | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? |
| HexChat | Yes | Yes | Yes | ? | ? | ? | Yes | ? | ? | ? | ? | ? | ? | Yes | ? | No |
| ircII | Yes | Yes | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Ircle | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? |
| Irssi | Yes | Yes | Yes | ? | ? | ? | Yes | Yes | ? | ? | ? | ? | ? | ? | ? | No |
| Konversation | Yes | Yes | Yes | ? | ? | ? | Yes | No | ? | ? | ? | Yes | ? | Yes | ? | Yes |
| KVIrc | Yes | Yes | Yes | Yes | No | No | Yes | No | No | Yes | Yes | Yes | Yes [Note 2] | Yes [Note 2] | Yes [Note 3] | No |
| Linkinus | ? | ? | ? | ? | ? | ? | Yes | No | ? | ? | ? | ? | ? | ? | ? | ? |
| Mibbit | No | ? | ? | ? | ? | ? | No | No | ? | ? | ? | ? | ? | ? | ? | ? |
| mIRC | Yes | Yes | Yes [Note 4] | ? | ? | ? | Yes | Yes | Yes [Note 5] | ? | ? | Yes | Yes | Yes [Note 5] | ? | ? |
| Nettalk | Yes | Yes | Yes | No | No | No | No | Partial | No | No | No | No | ? | ? | ? | No |
| PIRCH | Yes | Yes | Yes [Note 4] | ? | ? | No | No | No | No | No | No | No | No | No | ? | No |
| PJIRC | Yes | Yes | Yes | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | No |
| Quassel | No | No | No | No | No | No | No | No | No | No | No | No | No | No | ? | No |
| rcirc | No | No | No | No | No | No | No | No | No | No | No | No | No | No | ? | No |
| Smuxi | ? | ? | ? | ? | ? | ? | No | No | ? | ? | ? | ? | ? | ? | ? | ? |
| Snak | Yes | Yes | Yes | ? | Yes | ? | No | No | ? | ? | ? | ? | ? | ? | ? | ? |
| Visual IRC | ? | ? | Yes [Note 4] | ? | ? | ? | Yes | No | ? | ? | ? | Yes | ? | ? | Yes [Note 3] | Yes |
| WeeChat | Yes | Yes | ? | ? | ? | ? | No | No | ? | ? | ? | ? | ? | Yes | ? | ? |
| Client | CHAT | SEND | RESUME | TSEND | SEND T | XMIT | Passive DCC | Server | RDCC | REVERSE | RSEND | Reverse / Firewall DCC | File servers (FSERVs) | XDCC | VOICE | Whiteboard |
This software is compliant natively; other software may be compliant with extensions. [38] [39]
| Clients | CAP | CAP 302 | Cap-notify | Account-notify | account-tag | Away-notify | batch | Bot Mode | chghost | echo-message | extended-join | Invite-notify | labeled-response | message-tags | Monitor | msgid | multi-prefix | SASL v3.1 | SASL v3.2 | server-time | setname | sts | userhost-in-names | UTF8ONLY | WHOX | +typing | draft/ chathistory | WebIRC | draft/ account-registration | draft/ extended-monitor | draft/ multiline | +draft/ react | +draft/ reply |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BitchX | Yes | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No | No | ? | ? | ? | ? | ? | ? |
| Colloquy | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | No | Yes | No | Yes | Yes | No | Yes | No | No | Yes | No | Yes | No | No | ? | ? | No | No | No | No |
| HexChat | Yes | Yes | Yes | Yes | 2.16 | Yes | No | No | Yes | No | Yes | 2.16 | No | No | Yes | No | Yes | Yes | Yes | Yes | 2.16 | No | Yes | 2.16 | Yes | No | No | ? | ? | ? | ? | ? | ? |
| Irssi | Yes | Git | Git | Git | No | Git | No | No | Git | No | Git | Git | No | Git | No | No | Yes | Yes | No | No | Git | No | No | No | Yes | No | No | ? | ? | ? | ? | ? | ? |
| KVIrc | Yes | No | No | Git | No | Git | No | No | Git | No | Git | No | No | No | No | No | Git | Yes | No | Git | No | No | Git | No | No | No | No | ? | ? | ? | ? | ? | ? |
| Konversation | Yes | v20.11.80+ | v21.03.80+ | Yes | No | Yes | No | No | v21.03.80+ | No | Yes | No | No | No | No | No | Yes | Yes | v21.04.0+ | Yes | No | No | Yes | No | Yes | No | No | ? | ? | ? | ? | ? | ? |
| Mibbit | Yes | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | Yes | No | No | No | No | No | ? | No | No | ? | No | No | No | No | No | No |
| Mozilla Thunderbird | Yes | 72.0+ | 72.0+ | No | No | No | No | No | No | 73.0+ | No | No | No | No | Yes | No | Yes | Yes | 72.0+ | 60.0+ | No | No | No | No | No | No | No | ? | ? | ? | ? | ? | ? |
| Quassel IRC | Yes | Yes | Yes | Yes | 0.14+ | Yes | No | No | Yes | 0.14+ (opt in) | Yes | 0.14+ | No | 0.14+ | No | No | Yes | Yes | Yes | 0.14+ | 0.14+ | No | Yes | No | Yes | No | No | ? | ? | ? | ? | ? | ? |
| WeeChat | Yes | 2.2+ | Yes | Yes | No | Yes | No | No | 2.2+ | No | Yes | 2.2+ | No | 3.3+ | Yes | No | Yes | Yes | 3.3+ | Yes | 3.3+ | No | Yes | No | Yes | 3.3+ | No | ? | ? | ? | ? | ? | ? |
| mIRC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | No | Yes | Yes | 7.62+ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 7.62+ | Yes | Yes | No | Yes | No | No | ? | ? | ? | ? | ? | ? |
IRC SASL authentication primarily uses the same mechanisms as SASL in other protocols. Most commonly:
| Client | EXTERNAL | PLAIN | SCRAM-SHA-256 |
|---|---|---|---|
| BitchX | No | Yes | No |
| Colloquy | No | Yes | No |
| HexChat | Yes | Yes | No |
| Irssi | Yes | Yes | No |
| KVIrc | Yes | Yes | No |
| Konversation | Yes | Yes | No |
| Mozilla Thunderbird | No | Yes | No |
| WeeChat | Yes | Yes | 3.2+ |
| catgirl | Yes | Yes | No |
| mIRC | Yes | Yes | 7.68+ |
| pydle(lib.) | No | Yes | No |
| senpai | No | Yes | No |
| zIRC(lib.) | Yes | Yes | No |
Information on what features each of the clients support.
| Client | Multi-server | UTF-8 | Proxy server | irc:// URI scheme | Automatic updates | Scripting language |
|---|---|---|---|---|---|---|
| Bersirc | Yes | No | ? | ? | ? | — |
| BitchX | Yes | No | ? | ? | ? | Enhanced IrcII script |
| ChatZilla | Yes | Yes | Yes | Yes | Yes | JavaScript |
| Colloquy | Yes | Yes | ? | Yes | Yes [Note 1] | AppleScript, Cocoa, F-Script, JavaScript, Python |
| ERC | Yes | Yes | Yes [Note 2] | Yes [40] | Yes [Note 3] | Emacs Lisp |
| HexChat | Yes | Yes | Yes | Yes | Yes | Perl, Python, Tcl, Lua [Note 4] , JavaScript, C, C++, and via D-Bus. |
| ircII | Yes | Yes [Note 5] | ? | ? | ? | IrcII script |
| Ircle | Yes | No | ? | ? | ? | AppleScript |
| Irssi | Yes | Yes | Yes | No | No | Perl |
| Konversation | Yes | Yes | Yes | Yes | ? | Shell script, Ruby, Python, Perl, Java, C++, C#, JavaScript [Note 6] |
| KVIrc | Yes | Yes | Yes | Yes | No | KVS (custom), Perl, Python, C++ |
| LeafChat | Yes | Yes | ? | — | Yes | Java |
| Linkinus | Yes | Yes | Yes | Yes | Yes | AppleScript, Cocoa |
| Mibbit | Yes | Yes | ? | Yes | — | — |
| mIRC | Yes | Yes | Yes | Yes | Yes [Note 7] | mIRC script |
| Nettalk | Yes | Yes | SOCKS | Yes | Yes | VBScript, custom |
| PIRCH | Yes | No | ? | ? | No | Yes |
| PJIRC | Yes | Yes | ? | ? | No | Partial, JavaScript |
| Quassel | Yes | Yes | Yes | ? | No | No |
| rcirc | Yes | Yes | ? | ? | No | Emacs Lisp |
| Smuxi | Yes | Yes | Yes | ? | ? | Yes (language agnostic) |
| Snak | Yes | Yes | ? | ? | ? | AppleScript, IrcII script |
| Visual IRC | Yes | No | ? | ? | ? | Versus |
| WeeChat | Yes | Yes | Yes | Yes | ? | C, Perl, Python, Ruby, Lua, Tcl, Scheme (Guile) |
| Client | Multi-server | UTF-8 | Proxy server | irc:// URI scheme | Automatic updates | Scripting language |