Claude Desktop is Anthropic's native application for macOS and Windows. It is a dedicated chat interface for Claude -- similar in feel to ChatGPT or other AI assistants you may have used, but with a set of additional capabilities that make it meaningfully more powerful for day-to-day business use: Projects, persistent memory, file uploads, MCP server connections, and scheduled automation.
The simplest way to describe it: Claude Desktop is what most business owners and professionals use as their primary Claude tool. You install it once, it lives in your dock or taskbar like any other application, and you open it when you need Claude. No browser required.
If you have used ChatGPT
Claude Desktop will feel familiar -- it is a chat window where you type messages and Claude responds. The key differences: Projects let you maintain separate working contexts for different clients or topics; Memory means Claude carries facts forward between conversations rather than forgetting everything when you close the window; and MCP servers let Claude connect to your real business tools (calendar, email, databases) rather than just knowing things you tell it in the chat.
Desktop vs the web app
Claude at claude.ai in a browser is capable but stateless -- each session starts fresh. Claude Desktop adds Projects (persistent shared context), Memory (facts remembered across sessions), MCP connections (live tool access), and Cowork (scheduled automation). The underlying Claude model is identical; the infrastructure around it is fundamentally different.
Core features
Projects
Projects group related conversations under shared context. Attach files, instructions, or background documents to a project and every conversation inside it inherits them. Use projects to maintain separate working contexts -- one for client work, one for research, one for a recurring task -- without bleeding context between them.
Why you would use it: If you have three clients and you want Claude to know each client's background, tone, and preferences without you re-explaining them every time, create a Project for each client. Everything inside that project starts with that context pre-loaded.
Memory
When memory is enabled, Claude Desktop retains facts across conversations: your preferences, ongoing work state, names, conventions, and anything you explicitly ask it to remember. Unlike Projects (which you configure), memory is dynamic -- Claude updates it during conversations based on what you share.
Why you would use it: So Claude stops forgetting things you have told it before. Your preferred communication style, the fact that you work in UK English, key contacts, recurring tasks -- these build up over time and Claude stops needing prompting for them.
File uploads
Drag PDFs, images, spreadsheets, Word documents, and plain text files directly into the conversation window. Claude reads them in full. There are no hard per-file size constraints in the Desktop app that apply in the web interface.
Why you would use it: Drop a contract, a report, or a set of meeting notes into the window and ask Claude to summarise, extract key points, identify risks, or draft a response. No copy-pasting required.
MCP servers
Connect Claude Desktop to external tools via the Model Context Protocol (MCP) -- a standard way for Claude to communicate with other software. Once a server is configured, Claude can query your calendar, read emails, update a database, post to Slack, or interact with any MCP-compatible service -- all from within a conversation.
Why you would use it: Instead of manually copying information from your calendar into Claude, Claude connects directly and reads it. Instead of telling Claude what your current projects are, it reads from your project management tool. This is where Claude shifts from being a smart chat assistant to an actual business tool. See Connecting MCP Servers to Claude Desktop for setup instructions.
Cowork (scheduled tasks)
Cowork lets you define recurring tasks that run automatically -- a daily briefing, a weekly report, a pipeline that runs every morning while you work on something else. Tasks are configured once and triggered by schedule without any further input from you.
Why you would use it: Set Claude to generate a daily summary of your open tasks every morning at 8am, or compile a weekly report every Friday at 4pm. These run without you initiating anything.
Cowork limitation
Scheduled tasks only run while Claude Desktop is open and your machine is awake. For server-side, always-on automation that runs independently of your local machine, use the Anthropic API directly.
Claude Code tab
On Pro plans and above, Claude Desktop includes an embedded Claude Code tab -- the same file-editing, command-running capability as the CLI (command-line tool), accessible without leaving the Desktop app.
Why you would use it: If you want to use Claude Code's more powerful file and workspace capabilities but prefer to stay in the Desktop interface rather than the terminal, this gives you both in one place.
What can I actually do with it?
Here are six concrete business uses that Claude Desktop enables out of the box:
- Draft client-facing documents. Upload a brief or set of notes, ask Claude to draft a proposal, report, or email. Review and send. The Documents feature means you can attach a brand voice guide to a Project so every draft in that project matches the right tone automatically.
- Summarise research and reports. Drop in a PDF -- an industry report, a competitor's white paper, a lengthy contract -- and ask Claude for a summary, key points, or specific answers. Far faster than reading the whole document.
- Manage recurring workflows. Use Cowork to run a daily standup summary, a weekly digest of open items, or a monthly report template -- all on a schedule, without manual triggering.
- Connect to your tools. With MCP servers, Claude reads your calendar to help plan the week, checks your email for pending items, or queries your project management system for status updates -- all inside the chat window.
- Maintain context across clients. Create a Project per client with their background, preferences, and relevant files attached. Switch between clients without losing context or bleeding information between them.
- Research and synthesis. Ask Claude to research a topic, compare options, or synthesise information from multiple documents you provide. Get a structured output rather than a wall of text.
When to use Desktop vs Claude Code
Claude Desktop is the right choice for knowledge work: drafting documents, analysing files, managing information across tools, and running scheduled workflows. Claude Code (Anthropic's separate command-line tool) is the right choice when you need to work directly inside a codebase or file system -- reading source files, running tests, making multi-file edits. Many people use both: Desktop for research and general queries, Code for technical work inside a specific workspace.
If you are not sure which to start with: start with Claude Desktop. It is the lower-friction entry point and covers the majority of business use cases without any technical setup beyond installation.
Next steps
- Install Claude Desktop -- download and set up on macOS or Windows
- Setting up Projects -- organise your work into separate contexts
- Connecting MCP Servers -- link Claude to your calendar, email, and other tools
- Pricing and plans -- understand what is included in each tier