Tags
- Add-on
- Adium
- AMSN
- Aol instant messenger
- Backchannel
- Baidu
- Band
- BBM
- Betanews
- BIP
- BitlBee
- BNC
- Bombus
- Briar
- Cascading Style Sheets
- Chatbot
- Chat log
- ChatSecure
- ChatZilla
- Circuit
- Colloquy
- Comparison of Internet Relay Chat clients
- Comparison of mobile Internet Relay Chat clients
- Computing platform
- Contact list
- Conversations
- Cross-platform
- DALnet
- Denial-of-service attack
- Dingtalk
- Direct Client-to-Client
- Discord
- Distributed Data Protocol
- EFnet
- Element
- Emoticon
- Empathy
- ERC
- FaceTime
- Finch
- FirstClass
- Flock!
- Freenode
- Free software
- Fuze
- Gadu-Gadu
- Gajim
- GNU General Public License
- Google meet
- Google Talk
- GroupMe
- GroupWise
- HipChat
- Homer
- IBM Sametime
- IceChat
- IChat
- ICQ
- Ident protocol
- IMessage
- IMVU
- Infobot
- Instant messaging
- Instant Messaging and Presence Protocol
- Internet Relay Chat
- Internet Relay Chat flood
- Internet Relay Chat services
- IRC bot
- IRCd
- IRCnet
- IRC operator
- Irssi
- Jami
- Jarkko Oikarinen
- JavaScript
- Jingle
- Jitsi
- Jongla
- KakaoTalk
- Kik Messenger
- Konversation
- Kopete
- Lark
- Libon
- Lifehacker
- Line
- Linphone
- Linux
- LiveJournal
- MacOS
- Marco Polo
- Matrix
- Messages
- Messenger
- Mibbit
- Microsoft Comic Chat
- Microsoft Messenger service
- Microsoft Teams
- Microsoft Windows
- Miranda Ng
- MIRC
- MobileMe
- Mozilla
- Mozilla Application Suite
- Mozilla Thunderbird
- Naim
- Netsplit
- NETtalk
- Nimbuzz
- Odnoklassniki
- Off-the-Record Messaging
- OMEMO
- Open and Free Technology Community
- Open-source software
- Operating system
- Pidgin
- PIRCH
- Presence information
- Programmer
- Psi
- Quassel IRC
- Remove
- RetroShare
- Ricochet
- RingCentral
- Rizon
- RusNet
- Session
- Session Initiation Protocol
- Shareaza
- Signal
- Signal Protocol
- Simple
- Skype
- Skype for Business
- Slack
- SMS language
- Smuxi
- Snak
- Snapchat
- Snow
- Software categories
- Software license
- Software release life cycle
- Spark
- Status message
- Telegram
- Tencent QQ
- The Palace
- Threema
- Tkabber
- Tor
- Tox
- Trillian
- Undernet
- Viber
- Videotelephony
- Visual IRC
- VK
- Voice over IP
- Wayback Machine
- Webcam
- Web chat
- WeeChat
- Why
- Wickr
- Windows Messenger service
- Wire
- Xabber
- XChat
- XMPP
- XUL
- Yammer
- Zephyr
- ZNC
- Zoom Video Communications
- Zulip