25 third-party IM clients

Now there are many third-party IM clients that allow you to chat with IM conveniently. With so many IM clients, do you think it is difficult to make a choice?

The following is a list of third-party IM clients, including online clients and offline clients. They also pointed out their supported IM protocols and platforms. I believe it will be helpful for your selection. ()

Online Client

Meebo
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber

FlickIM
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber

Kool IM
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Gadu-Gadu, Xfire

EBuddy
Supports: AIM, Yahoo !, MSN, GTalk, MySpace

ILoveIM
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber, webcams/video chat

RadiusIM
Supports: AIM, Yahoo !, MSN, GTalk

Imo. im
Supports: AIM, Yahoo !, MSN, GTalk

Mabber
Supports:ProprietaryJabber-based (aimed at mobiles)

IMUnitive
Supports: AIM, Yahoo !, MSN, gim (proprietary)

Snimmer
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber

EasyMessenger
Supports: AIM, Yahoo !, MSN, ICQ, Jabber

MessengerFX
Supports: MSN

IMhaha
Supports: AIM, Yahoo !, MSN, QQ

Google Talk
Supports: GTalk, Jabber

Yahoo! Web Messenger (web. im)
Supports: Yahoo !, MSN

MSN Web Messenger
Supports: Yahoo !, MSN

AIM Express
Supports: AIM

ICQ2Go
Supports: ICQ

WeChat Chat-Jabber Web Chat
Supports: Jabber

Trillian Astra (closed alpha)
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber, MySpace, iChat

Offline client

Trillian
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, IRC
Platforms: Windows

Pidgin
Supports: AIM, Yahoo !, MSN, GTalk, ICQ, Jabber, Gadu-Gadu, QQ, MySpace, iChat, IRC, Lotus, Novell
Platforms: Windows, Unix

Adium
Supports: Aim, Yahoo !, MSN, Gtalk, ICQ, jabber, Gadu-Gadu, QQ, iChat, Lotus, Novell, livejournal
Platforms: Mac OS X

Airtalker
Supports: Aim, Yahoo !, MSN, Gtalk, ICQ, jabber, MySpace, Friendster, Flickr, YouTube, Twitter, blogging
Platforms: Windows, Mac OS X (via Adobe AIR), also has web version

Miranda IM
Supports: AOL, Yahoo !, MSN, ICQ, jabber, Gadu-Gadu, IRC, IAX, tlen, netsend
Platforms: Windows