| Nonzas | [XEP-0360](https://xmpp.org/extensions/xep-0360.html) | n/a | Defines the term "Nonza", describing every top level stream element that is not a Stanza. |
| [Stream Management](streammanagement.md) | [XEP-0198](https://xmpp.org/extensions/xep-0198.html) | n/a | Allows active management of an XML Stream between two XMPP entities (stanza acknowledgement, stream resumption). |
| [Data Forms](dataforms.md) | [XEP-0004](https://xmpp.org/extensions/xep-0004.html) | n/a | Allows to gather data using Forms. |
| Last Activity | [XEP-0012](https://xmpp.org/extensions/xep-0012.html) | n/a | Communicating information about the last activity associated with an XMPP entity. |
| Flexible Offline Message Retrieval | [XEP-0013](https://xmpp.org/extensions/xep-0013.html) | n/a | Extension for flexible, POP3-like handling of offline messages. |
| [Privacy Lists](privacy.md) | [XEP-0016](https://xmpp.org/extensions/xep-0016.html) | n/a | Enabling or disabling communication with other entities. |
| [Service Discovery](disco.md) | [XEP-0030](https://xmpp.org/extensions/xep-0030.html) | n/a | Allows to discover services in XMPP entities. |
| Extended Stanza Addressing | [XEP-0033](https://xmpp.org/extensions/xep-0033.html) | n/a | Allows to include headers in stanzas in order to specifiy multiple recipients or sub-addresses. |
| [Multi User Chat](muc.md) | [XEP-0045](https://xmpp.org/extensions/xep-0045.html) | n/a | Allows configuration of, participation in, and administration of individual text-based conference rooms. |
| In-Band Bytestreams | [XEP-0047](https://xmpp.org/extensions/xep-0047.html) | n/a | Enables any two entities to establish a one-to-one bytestream between themselves using plain XMPP. |
| Bookmarks | [XEP-0048](https://xmpp.org/extensions/xep-0048.html) | n/a | Bookmarks, for e.g. MUC and web pages. |
| vcard-temp | [XEP-0054](https://xmpp.org/extensions/xep-0054.html) | n/a | The vCard-XML format currently in use. |
| Jabber Search | [XEP-0055](https://xmpp.org/extensions/xep-0055.html) | n/a | Search information repositories on the XMPP network. |
| Result Set Management | [XEP-0059](https://xmpp.org/extensions/xep-0059.html) | n/a | Page through and otherwise manage the receipt of large result sets |
| Field Standardization for Data Forms | [XEP-0068](https://xmpp.org/extensions/xep-0068.html) | n/a | Standardized field variables used in the context of jabber:x:data forms. |
| Advanced Message Processing | [XEP-0079](https://xmpp.org/extensions/xep-0079.html) | n/a | Enables entities to request, and servers to perform, advanced processing of XMPP message stanzas. |
| User Location | [XEP-0080](https://xmpp.org/extensions/xep-0080.html) | n/a | Enabled communicating information about the current geographical or physical location of an entity. |
| XMPP Date Time Profiles | [XEP-0082](https://xmpp.org/extensions/xep-0082.html) | n/a | Standardization of Date and Time representation in XMPP. |
| Chat State Notifications | [XEP-0085](https://xmpp.org/extensions/xep-0085.html) | n/a | Communicating the status of a user in a chat session. |
| [Time Exchange](time.md) | [XEP-0090](https://xmpp.org/extensions/xep-0090.html) | n/a | Allows local time information to be shared between users. |
| Software Version | [XEP-0092](https://xmpp.org/extensions/xep-0092.html) | n/a | Retrieve and announce the software application of an XMPP entity. |
| User Tune | [XEP-0118](https://xmpp.org/extensions/xep-0118.html) | n/a | Defines a payload format for communicating information about music to which a user is listening. |
| Data Forms Validation | [XEP-0122](https://xmpp.org/extensions/xep-0122.html) | n/a | Enables an application to specify additional validation guidelines . |
| Service Administration | [XEP-0133](https://xmpp.org/extensions/xep-0133.html) | n/a | Recommended best practices for service-level administration of servers and components using Ad-Hoc Commands. |
| Stream Compression | [XEP-0138](https://xmpp.org/extensions/xep-0138.html) | n/a | Support for optional compression of the XMPP stream.
| Data Forms Layout | [XEP-0141](https://xmpp.org/extensions/xep-0141.html) | n/a | Enables an application to specify form layouts. |
| Personal Eventing Protocol | [XEP-0163](https://xmpp.org/extensions/xep-0163.html) | n/a | Using the XMPP publish-subscribe protocol to broadcast state change events associated with an XMPP account. |
| Message Delivery Receipts | [XEP-0184](https://xmpp.org/extensions/xep-0184.html) | n/a | Extension for message delivery receipts. The sender can request notification that the message has been delivered. |
| [Blocking Command](blockingcommand.md) | [XEP-0191](https://xmpp.org/extensions/xep-0191.html) | n/a | Communications blocking that is intended to be simpler than privacy lists (XEP-0016). |
| XMPP Ping | [XEP-0199](https://xmpp.org/extensions/xep-0199.html) | n/a | Sending application-level pings over XML streams.
| Entity Time | [XEP-0202](https://xmpp.org/extensions/xep-0202.html) | n/a | Allows entities to communicate their local time |
| Delayed Delivery | [XEP-0203](https://xmpp.org/extensions/xep-0203.html) | n/a | Extension for communicating the fact that an XML stanza has been delivered with a delay. |
| XMPP Over BOSH | [XEP-0206](https://xmpp.org/extensions/xep-0206.html) | n/a | Use Bidirectional-streams Over Synchronous HTTP (BOSH) to transport XMPP stanzas. |
| Attention | [XEP-0224](https://xmpp.org/extensions/xep-0224.html) | n/a | Getting attention of another user. |
| Bits of Binary | [XEP-0231](https://xmpp.org/extensions/xep-0231.html) | n/a | Including or referring to small bits of binary data in an XML stanza. |
| Software Information | [XEP-0232](https://xmpp.org/extensions/xep-0232.html) | 0.3 | Allows an entity to provide detailed data about itself in Service Discovery responses. |
| Best Practices for Resource Locking | [XEP-0296](https://xmpp.org/extensions/xep-0296.html) | n/a | Specifies best practices to be followed by Jabber/XMPP clients about when to lock into, and unlock away from, resources. |
| Last Message Correction | [XEP-0308](https://xmpp.org/extensions/xep-0308.html) | n/a | Provides a method for indicating that a message is a correction of the last sent message. |
| Last User Interaction in Presence | [XEP-0319](https://xmpp.org/extensions/xep-0319.html) | n/a | Communicate time of last user interaction via XMPP presence notifications. |
| Data Forms Geolocation Element | [XEP-0350](https://xmpp.org/extensions/xep-0350.html) | n/a | Allows to include XEP-0080 gelocation data in XEP-0004 data forms. |
| Message Carbons | [XEP-0280](https://xmpp.org/extensions/xep-0280.html) | n/a | Keep all IM clients for a user engaged in a conversation, by carbon-copy outbound messages to all interested resources. |
| [Message Archive Management](mam.md) | [XEP-0313](https://xmpp.org/extensions/xep-0313.html) | n/a | Query and control an archive of messages stored on a server. |
| [Internet of Things - Sensor Data](iot.md) | [XEP-0323](https://xmpp.org/extensions/xep-0323.html) | n/a | Sensor data interchange over XMPP. |
| [Internet of Things - Provisioning](iot.md) | [XEP-0324](https://xmpp.org/extensions/xep-0324.html) | n/a | Provisioning, access rights and user privileges for the Internet of Things. |
| [Internet of Things - Control](iot.md) | [XEP-0325](https://xmpp.org/extensions/xep-0325.html) | n/a | Describes how to control devices or actuators in an XMPP-based sensor network. |
| Jid Prep | [XEP-0328](https://xmpp.org/extensions/xep-0328.html) | 0.1 | Describes a way for an XMPP client to request an XMPP server to prep and normalize a given JID. |
| [HTTP over XMPP transport](hoxt.md) | [XEP-0332](https://xmpp.org/extensions/xep-0332.html) | n/a | Allows to transport HTTP communication over XMPP peer-to-peer networks. |
| Chat Markers | [XEP-0333](https://xmpp.org/extensions/xep-0333.html) | n/a | A solution of marking the last received, displayed and acknowledged message in a chat. |
| Message Processing Hints | [XEP-0334](https://xmpp.org/extensions/xep-0334.html) | n/a | Hints to entities routing or receiving a message. |
| JSON Containers | [XEP-0335](https://xmpp.org/extensions/xep-0335.html) | n/a | Encapsulation of JSON data within XMPP Stanzas. |
| [Internet of Things - Discovery](iot.md) | [XEP-0347](https://xmpp.org/extensions/xep-0347.html) | n/a | Describes how Things can be installed and discovered by their owners. |
| Client State Indication | [XEP-0352](https://xmpp.org/extensions/xep-0352.html) | n/a | A way for the client to indicate its active/inactive state. |
| [Push Notifications](pushnotifications.md) | [XEP-0357](https://xmpp.org/extensions/xep-0357.html) | n/a | Defines a way to manage push notifications from an XMPP Server. |
| Stable and Unique Stanza IDs | [XEP-0359](https://xmpp.org/extensions/xep-0359.html) | 0.5.0 | This specification describes unique and stable IDs for messages. |
| HTTP File Upload | [XEP-0363](https://xmpp.org/extensions/xep-0363.html) | 0.3.1 | Protocol to request permissions to upload a file to an HTTP server and get a shareable URL. |
| References | [XEP-0372](https://xmpp.org/extensions/xep-0363.html) | 0.2.0 | Add references like mentions or external data to stanzas. |
| [OpenPGP for XMPP](ox.md) | [XEP-0373](https://xmpp.org/extensions/xep-0373.html) | 0.3.2 | Utilize OpenPGP to exchange encrypted and signed content. |
| [Spoiler Messages](spoiler.md) | [XEP-0382](https://xmpp.org/extensions/xep-0382.html) | 0.2.0 | Indicate that the body of a message should be treated as a spoiler. |
| [OMEMO Multi End Message and Object Encryption](omemo.md) | [XEP-0384](https://xmpp.org/extensions/xep-0384.html) | n/a | Encrypt messages using OMEMO encryption (currently only with smack-omemo-signal -> GPLv3). |
| [Consistent Color Generation](consistent_colors.md) | [XEP-0392](https://xmpp.org/extensions/xep-0392.html) | 0.6.0 | Generate consistent colors for identifiers like usernames to provide a consistent user experience. |
| [Message Markup](messagemarkup.md) | [XEP-0394](https://xmpp.org/extensions/xep-0394.html) | 0.1.0 | Style message bodies while keeping body and markup information separated. |
| Message Fastening | [XEP-0422](https://xmpp.org/extensions/xep-0422.html) | 0.1.1 | Mark payloads on a message to be logistically fastened to a previous message. |
| Fallback Indication | [XEP-0428](https://xmpp.org/extensions/xep-0428.html) | 0.1.0 | Declare body elements of a message as ignorable fallback for naive legacy clients. |
| [Multi-User Chat Light](muclight.md) | [XEP-xxxx](https://mongooseim.readthedocs.io/en/latest/open-extensions/xeps/xep-muc-light.html) | n/a | Multi-User Chats for mobile XMPP applications and specific environment. |
| Google GCM JSON payload | n/a | n/a | Semantically the same as XEP-0335: JSON Containers. |
| [Message Events](messageevents.md) | [XEP-0022](https://xmpp.org/extensions/xep-0022.html) | n/a | Requests and responds to message events. |
| [Roster Item Exchange](rosterexchange.md) | [XEP-0093](https://xmpp.org/extensions/xep-0093.html) | n/a | Allows roster data to be shared between users. |
