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vanitasvitae c46bc6d6dd
Remove annotations
2 years ago
config Add CustomImportOrder checkstyle rule 3 years ago
documentation Smack 4.2.1 2 years ago
resources Smack 4.2.1 2 years ago
smack-android Rework Smack debugger. 2 years ago
smack-android-extensions Enfore spaces for indentation 3 years ago
smack-bosh Rework Smack debugger. 2 years ago
smack-compression-jzlib Add JavadocPackage checkstyle 5 years ago
smack-core Merge upstream 2 years ago
smack-debug Rework Smack debugger. 2 years ago
smack-debug-slf4j Rework Smack debugger. 2 years ago
smack-experimental Remove annotations 2 years ago
smack-extensions Cancel declines file offers 2 years ago
smack-im Deprecate old async API 2 years ago
smack-integration-test Simplify file API, allow sending hash with file 2 years ago
smack-java7 Bump "Error Prone" to 2.0.15 3 years ago
smack-jingle-old Heavy reworking in progress 3 years ago
smack-legacy Merge branch '4.2' 3 years ago
smack-omemo Refactor JET in order to match spec 2 years ago
smack-omemo-signal Add CustomImportOrder checkstyle rule 3 years ago
smack-omemo-signal-integration-test Add first JET test 2 years ago
smack-repl Rework Smack debugger. 2 years ago
smack-resolver-dnsjava Add CustomImportOrder checkstyle rule 3 years ago
smack-resolver-javax Handle NameNotFoundException in smack-resolver-javax 3 years ago
smack-resolver-minidns More checkstyle whitespace related checks 3 years ago
smack-sasl-javax Add CustomImportOrder checkstyle rule 3 years ago
smack-sasl-provided Add CustomImportOrder checkstyle rule 3 years ago
smack-tcp Smack 4.2.1 2 years ago
.gitignore Add OMEMO support 3 years ago
.travis.yml Travis-CI: Re-enable coveralls 3 years ago
LICENSE Add Appendix to LICENSE 3 years ago Update Bitcoin Donation address 2 years ago
build.gradle Smack 4.2.1 2 years ago
repl Bump Ammonite REPL to 0.8.0 3 years ago
settings.gradle Add OMEMO support 3 years ago
version.gradle Smack 4.3.0-alpha1-SNAPSHOT 3 years ago


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Smack is an open source, highly modular, easy to use, XMPP client library written in Java for Java SE compatible JVMs and Android.

A pure Java library, it can be embedded into your applications to create anything from a full XMPP instant messaging client to simple XMPP integrations such as sending notification messages and presence-enabling devices. Smack and XMPP allows you to easily exchange data, in various ways e.g. fire-and-forget, publish-subscribe, between human and non-human endpoints (M2M, IoT, …).

More information are provided by the Overview.

Getting started

Start with having a look at the Docmentation and the Javadoc.

Instructions how to use Smack in your Java or Android project are provided in the Smack 4.2 Readme and Upgrade Guide.

Bug Reporting

Only a few users have access for for filling bugs in the tracker. New users should:

  1. Read “How to ask for help or report an issue”
  2. Create a forums account (only e-mail is a requirement, you can skip all the other fields).
  3. Login to the forum account
  4. Press New in your toolbar and choose Discussion
  5. Choose the Smack Developers Forum of Smack and add the tag ‘bug_report’ to your new post

Please search for your issues in the bug tracker before reporting.


The developers hang around in #smack (freenode, IRC) and (XMPP MUC room). Remember that it may take some time (~hours) to get a response.

You can also reach us via the Smack Users Forum if you have questions or need support, or the Smack Developers Forum if you want to discuss Smack development.


If you want to start developing for Smack and eventually contribute code back, then please have a look at the Guidelines for Smack Developers and Contributors. The guidelines also contain development quickstart instructions.



If you find Smack useful and feel like donating, then you can use one of the following systems:

Ignite Realtime

Ignite Realtime is an Open Source community composed of end-users and developers around the world who are interested in applying innovative, open-standards-based Real Time Collaboration to their businesses and organizations. We're aimed at disrupting proprietary, non-open standards-based systems and invite you to participate in what's already one of the biggest and most active Open Source communities.

Smack - an Ignite Realtime community project.