Extension Setup

The current Jan Desktop Client has some default extensions built on top of this framework to enhance the user experience. In this guide, we will show you the list of default extensions and how to configure extension settings.

Default Extensions

You can find the default extensions in the Settings > Extensions.

List of Default Extensions

Extension Name	Version	Description	Source Code Link
Assistant Extension	v1.0.0	This extension enables assistants, including Jan, a default assistant that can call all downloaded models.	Link to Source
Conversational Extension	v1.0.0	This extension enables conversations and state persistence via your filesystem.	Link to Source
Inference Nitro Extension	v1.0.0	This extension embeds Nitro, a lightweight (3 MB) inference engine in C++. See nitro.jan.ai.	Link to Source
Inference Openai Extension	v1.0.0	This extension enables OpenAI chat completion API calls.	Link to Source
Inference Triton Trt Llm Extension	v1.0.0	This extension enables Nvidia's TensorRT-LLM as an inference engine option.	Link to Source
Model Extension	v1.0.22	Model Management Extension provides model exploration and seamless downloads.	Link to Source
Monitoring Extension	v1.0.9	This extension offers system health and OS-level data.	Link to Source

Configure Extension Settings

To configure extension settings:

1. Navigate to the ~/jan/extensions.
2. Open the extensions.json file
3. Edit the file with options including:

Option	Description
_active	Enable/disable the extension.
listeners	Default listener setting.
origin	Extension file path.
installOptions	Version and metadata configuration.
name	Extension name.
version	Extension version.
main	Main file path.
description	Extension description.
url	Extension URL.

~/jan/extensions/extensions.json

{
  "@janhq/assistant-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-assistant-extension-1.0.0.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/assistant-extension",
    "version": "1.0.0",
    "main": "dist/index.js",
    "description": "This extension enables assistants, including Jan, a default assistant that can call all downloaded models",
    "url": "extension://@janhq/assistant-extension/dist/index.js"
  },
  "@janhq/conversational-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-conversational-extension-1.0.0.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/conversational-extension",
    "version": "1.0.0",
    "main": "dist/index.js",
    "description": "This extension enables conversations and state persistence via your filesystem",
    "url": "extension://@janhq/conversational-extension/dist/index.js"
  },
  "@janhq/inference-nitro-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-inference-nitro-extension-1.0.0.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/inference-nitro-extension",
    "version": "1.0.0",
    "main": "dist/index.js",
    "description": "This extension embeds Nitro, a lightweight (3mb) inference engine written in C++. See nitro.jan.ai",
    "url": "extension://@janhq/inference-nitro-extension/dist/index.js"
  },
  "@janhq/inference-openai-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-inference-openai-extension-1.0.0.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/inference-openai-extension",
    "version": "1.0.0",
    "main": "dist/index.js",
    "description": "This extension enables OpenAI chat completion API calls",
    "url": "extension://@janhq/inference-openai-extension/dist/index.js"
  },
  "@janhq/inference-triton-trt-llm-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-inference-triton-trt-llm-extension-1.0.0.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/inference-triton-trt-llm-extension",
    "version": "1.0.0",
    "main": "dist/index.js",
    "description": "This extension enables Nvidia's TensorRT-LLM as an inference engine option",
    "url": "extension://@janhq/inference-triton-trt-llm-extension/dist/index.js"
  },
  "@janhq/model-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-model-extension-1.0.22.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/model-extension",
    "version": "1.0.22",
    "main": "dist/index.js",
    "description": "Model Management Extension provides model exploration and seamless downloads",
    "url": "extension://@janhq/model-extension/dist/index.js"
  },
  "@janhq/monitoring-extension": {
    "_active": true,
    "listeners": {},
    "origin": "/Applications/Jan.app/Contents/Resources/app.asar.unpacked/pre-install/janhq-monitoring-extension-1.0.9.tgz",
    "installOptions": { "version": false, "fullMetadata": false },
    "name": "@janhq/monitoring-extension",
    "version": "1.0.9",
    "main": "dist/index.js",
    "description": "This extension provides system health and OS level data",
    "url": "extension://@janhq/monitoring-extension/dist/index.js"
  }
}

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