Category:インスタントメッセンジャー

Discord

Skype

Mumble (software)

WhatsApp

Mattermost

Instant messaging#Review of products

Zimbra

KakaoTalk

Jami (software)

Telepathy (software)

Zalo

Instant messaging

Gadu-Gadu

Pidgin (software)

IMessage

Trillian (software)

EncroChat

Adium

Meebo

Coccinella (software)