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Kaiwa (XMPP client)

Developer(s) Digicoop
Initial release 2015 (2015)
Development status Active
Written in JavaScript
Platform Cross-platform
Available in English
Type XMPP Client
License MIT License
Website .comgetkaiwa

Kaiwa is a free and open-source XMPP client developed by Digicoop.[1]

It is a Web application that can operate with any server that supports the open protocol such as Prosody and Kaiwa servers but also proprietary services like Google Talk.

The source code of Kaiwa is available under the MIT License.[2]


  • History 1
  • Features 2
  • See also 3
  • External links 4
  • References 5


Kaiwa development started in February 2015 as a fork of the Otalk instant messaging client.[3] According to its creators, the purpose of Kaiwa is to offer a "modern, free and standardized alternative to commercial platforms" like Slack.[4]


Kaiwa provides functionalities for both individual and team communications:

  • Permanent multi-user chat rooms
  • Private Messages
  • User mentions
  • User management via a LDAP server
  • Avatars across rooms and private conversations
  • oEmbed integration to display media from external websites in rooms and conversations
  • Desktop sound and popup notifications

It adds multiple XMPP extension protocols (XEP) to the original Otalk prototype, including:

  • Conversation archiving and retrieval on the server, based on Message History Syncing (MAM, XEP-0313)
  • Active chat synchronization across devices, based on Message Carbons (XEP-0280)
  • Confirmation and auto-reconnection, based on Stream Management (XEP-0198),
  • Last message editing, based on Message Correction (XEP-0308)
  • Timezone indications, based on Entity Time (XEP-0202)

Kaiwa requires an XMPP server, an LDAP server and a database. It is provided with a Prosody-based XMPP server, which communicates to the Web client over WebSocket.

See also

External links

  • Official website
  • kaiwa on GitHub
  • Otalk website
  • XMPP Extensions


  1. ^ "Kaiwa, modern XMPP Web client". Retrieved 23 October 2015. 
  2. ^ Kaiwa license
  3. ^ Saint Peter A, XMPP Standards Foundation. "Kaiwa & Otalk: An open source love story". Retrieved 21 October 2015. 
  4. ^
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