---
title:  Installing Letta Desktop
subtitle: Install Letta Desktop on your MacOS, Windows, or Linux machine
slug: guides/ade/desktop
---

<Note>
Letta Desktop is currently in **beta**.
For a more stable development experience, we recommend using the [cloud ADE](/guides/ade/browser) with [Docker](/guides/selfhosting), or [Letta Cloud](/guides/cloud/overview).

For support, join our community [Discord server](https://discord.gg/letta).
</Note>


<img className="w-full light" src="/images/letta_desktop_screenshot.png" />
<img className="w-full dark" src="/images/letta_desktop_screenshot_dark.png" />

**Letta Desktop** allows you to run the ADE (Agent Development Environment) as a local application.
Letta Desktop also bundles a built-in Letta server, so can run Letta Desktop standalone, or you can connect it to a self-hosted Letta server.

## Download Letta Desktop

<CardGroup>
<Card
    title="Download Letta Desktop for Mac (Apple Silicon)"
    icon="fa-brands fa-apple"
    iconPosition="left"
    href="https://downloads.letta.com/mac/dmg/arm64"
>
</Card>
<Card
    title="Download Letta Desktop for Windows (x64)"
    icon="fa-brands fa-windows"
    iconPosition="left"
    href="https://downloads.letta.com/windows/nsis/x64"
>
</Card>
<Card
    title="Download Letta Desktop for Linux (x64)"
    icon="fa-brands fa-linux"
    iconPosition="left"
    href="https://downloads.letta.com/linux/appImage/x64"
>
</Card>
</CardGroup>


## Adding LLM backends

<Note>
The integrations page is only available when using the embedded Letta server.
If you are using a self-hosted Letta server, you can add LLM backends by editing the environment variables when you launch your server.
See [self-hosting](/guides/selfhosting) for more information.
</Note>

The Letta server can be connected to various LLM API backends.
You can add additional LLM API backends by opening the integrations panel (clicking the <Icon icon="square-rss" /> icon).
When you configure a new integration (by setting the environment variable in the dialog), the Letta server will be restarted to load the new LLM API backend.

<img className="block w-300" src="/images/letta_desktop_integrations.png" />

You can also edit the environment variable file directly, located at `~/.letta/env`.

For this quickstart demo, we'll add an OpenAI API key (once we enter our key and **click confirm**, the Letta server will automatically restart):
<img className="w-300" src="/images/letta_desktop_openai.png" />


## Configuration Modes

Letta Desktop can run in two primary modes, which can be configured from the settings menu in the app, or by manually editing the `~/.letta/desktop_config.json` file.

<AccordionGroup>
  <Accordion title="Embedded server mode" icon="database">
    In this mode Letta Desktop runs its own embedded Letta server with a SQLite database.
    No additional setup is required - just install Letta Desktop and start creating stateful agents!

    <Tabs>
      <Tab title="Configuration">
        To manually configure embedded mode, create or edit `~/.letta/desktop_config.json`:
        ```json
        {
          "version": "1",
          "databaseConfig": {
            "type": "embedded",
            "embeddedType": "sqlite"
          }
        }
        ```
      </Tab>
    </Tabs>
  </Accordion>

  <Accordion title="Self-Hosted server mode (recommended)" icon="server">
    Connect Letta Desktop to your own self-hosted Letta server.
    You can use this mode to connect to a Letta server running locally (e.g. on `localhost:8283` via Docker), or to a Letta server running on a remote machine.

    <Tabs>
      <Tab title="Local Server">
        For a Letta server running locally on your machine:
        ```json
        {
          "version": "1",
          "databaseConfig": {
            "type": "local",
            "url": "http://localhost:8283"
          }
        }
        ```
      </Tab>
      <Tab title="Remote Server">
        For a password-protected Letta server on a remote machine:
        ```json
        {
          "version": "1",
          "databaseConfig": {
            "type": "local",
            "url": "https://remote-machine.com",
            "token": "your-password"
          }
        }
        ```
        <Note>
        If your server is [password protected](/guides/selfhosting), include the `token` field. Otherwise, omit it.
        </Note>
      </Tab>
    </Tabs>
  </Accordion>

  <Accordion title="Embedded PostgreSQL (deprecated)" icon="triangle-exclamation">
    <Warning>
    This mode is deprecated and will be removed in a future release. See our migration guide if you have existing data in PostgreSQL from Letta Desktop you want to preserve.
    </Warning>

    <Tabs>
      <Tab title="Configuration">
        For backwards compatibility, you can still run the embedded server with PostgreSQL:

        ```json
        {
          "version": "1",
          "databaseConfig": {
            "type": "embedded",
            "embeddedType": "pgserver"
          }
        }
        ```
      </Tab>
      <Tab title="Migration Guide">
        If you have existing data in the embedded PostgreSQL database, you can migrate to a Docker-based Letta server that reads from your existing data:

        1. First, locate your PostgreSQL data directory (by default for old versions of Letta Desktop this is `~/.letta/desktop_data`)

        2. Launch a Docker Letta server with your existing data mounted:

        ```bash
        # Mount your existing Desktop PostgreSQL data to the Docker container
        docker run \
          -v ~/.letta/desktop_data:/var/lib/postgresql/data \
          -p 8283:8283 \
          -e OPENAI_API_KEY="your_openai_api_key" \
          -e ANTHROPIC_API_KEY="your_anthropic_api_key" \
          letta/letta:latest
        ```

        3. Update your Letta Desktop configuration to connect to this self-hosted server:

        ```json
        {
          "version": "1",
          "databaseConfig": {
            "type": "local",
            "url": "http://localhost:8283"
          }
        }
        ```

        Your agents and data will be preserved and accessible through the Docker-based server.
      </Tab>
    </Tabs>
  </Accordion>
</AccordionGroup>

## Support

For bug reports and feature requests, contact us on [Discord](https://discord.gg/letta).