---
title: Letta Agent on web and mobile | Letta Docs
description: Use chat.letta.com to work with your Letta agents from any browser
---

You can use Letta Agent from the web or your phone at [chat.letta.com](https://chat.letta.com). Your agents, memory, conversations, and tools carry over from the desktop app and CLI, so you can start a task on one device and continue it somewhere else.

## Web / mobile setup

To get setup visit [chat.letta.com](https://chat.letta.com) and create an account or login. Agents that you create on web / mobile are managed through [Constellation](/letta-agent/constellation/index.md), so you can access them from any device (including the [CLI](/letta-agent/cli/index.md) and [desktop app](/letta-agent/desktop-app/index.md)) as long as you use the same login.

## Execution environments

On web and mobile you can change the execution environment with the click of a button. Use execution environments to teleport the same agent with the same memories and context from one computer to another.

### Cloud sandboxes

By default, when you interact with an agent on `chat.letta.com` it deploys the agent into a cloud sandbox. Sandboxes are useful for quick tasks because they work without any setup and keep execution separate from your laptop.

### Self-hosted remote environments

If you want the agent to work on a specific machine instead — for example your laptop, workstation, or a cloud VM — deploy a [remote environment](/letta-agent/remote/index.md). Once it is connected, you can select it from the environment picker in `chat.letta.com`, and the agent’s shell, file, and tool calls will run there instead of in the sandbox.

You can even click on the filesystem icon and edit code / files manually in the remote environment your agent is connected to.

To make any machine accessible as a remote environment to [chat.letta.com](https://chat.letta.com), simply install the Letta Code CLI on that machine, then run `letta server` to register the machine with Constellation. For more information, see our [remote environments](/letta-agent/remote/index.md) docs.

![Letta Agent running in chat.letta.com with a cloud sandbox selected](/images/letta-code-remote.jpg) ![Letta Agent running in chat.letta.com with a cloud sandbox selected](/images/letta-code-remote.jpg)

### Using your personal computer as an environment

There simplest way to make a machine available from web and mobile is to download the [Letta desktop app](/letta-agent/desktop-app/index.md), then toggle “Allow remote access” from the settings page.

Alternatively, you can also download the CLI and run `letta server` in a terminal window.