Claude Desktop explained: chat, Cowork and Code, and what changed in 2026

Most people use Claude as a chatbox in the browser. They ask a question, get an answer, and close the tab. That is one of the ways to use Claude, and far from the most powerful.

Claude Desktop is the downloadable app for macOS, Windows and, in beta, Linux. It gives access to three ways of working: regular chat, Claude Cowork and Claude Code. Since September 2026, chat and Cowork are merging into a single conversation for some users. This article explains what each of the three does, what changed in 2026, and which paid subscription you need.

In short: Claude Desktop is Anthropic’s app for macOS, Windows and Linux (beta) with chat, Cowork (an agent that completes tasks and works through files on its own) and Code (agentic programming). Chat works on any plan, Cowork and Code require a paid subscription. Since 16 September 2026 Anthropic has been merging chat and Cowork into one conversation, starting with Pro and Max; the Code tab stays separate.

What is Claude Desktop and what can you do with it?

Claude Desktop is Anthropic’s desktop application for macOS, Windows and Linux (beta), downloadable via claude.com/download. In the app you work in chat, in Cowork (an agent for knowledge work) or in Code (agentic coding at project level). In the new experience rolling out since 16 September 2026, you no longer pick a mode between chat and Cowork: one conversation does both. The Code tab stays where it was.

The chat mode: the entry point

The chat mode in Claude Desktop works almost identically to claude.ai in the browser. You ask a question, Claude answers. Available on all plans, including the free plan, and also via browser and mobile. The free plan now also searches the web, creates files and remembers earlier conversations.

It is the entry point everyone knows. But if you only use Claude this way, you miss what Cowork and Code do for professionals and entrepreneurs. Both require a paid subscription. Cowork also works in beta on web and mobile, and Claude Code also via the terminal, VS Code, the browser and mobile.

What is the Cowork mode in short?

Claude Cowork is Claude’s agent: you state an end goal, and Claude completes it on its own, executes multi-step tasks and runs recurring assignments on a schedule. Think of a folder with 40 quotations turning into an Excel analysis with working formulas. Since 16 September 2026 Cowork has gradually been moving into the regular conversation on Pro and Max, and from 6 October 2026 new Cowork tasks on Pro and Max run in the cloud; the option to work only on your computer disappears.

“Cowork makes it possible for Claude to deliver polished, near final work.”

— Scott White, Head of Product for Claude Enterprise at Anthropic, at the February 2026 keynote

Cowork also runs in beta on web and mobile for Pro, Max and Team. For the folders on your own computer, Cowork’s built-in browser (since late August 2026) and computer use (in beta) you need the desktop app. Your local folders stay on your computer: Claude only reaches the folders you connect, only while the app is open, and only fetches a copy of the file a task needs, although that copy is processed on Anthropic’s servers. Scheduled tasks run in the cloud, so your computer does not need to be on for them.

Everything about Cowork, from pricing and availability to safety and limitations, is covered in our separate guide Claude Cowork explained. Want to know how marketing automation fits into your marketing processes? That is exactly the kind of question an introductory call with ClickForest answers.

What is Claude Code and what do you use it for?

Claude Code is an agentic coding system that reads your entire codebase, makes changes across multiple files, runs tests and delivers committed code. It works at project level. Accessible via the terminal (CLI), the VS Code extension, a plugin for JetBrains IDEs, the desktop app, the browser via claude.ai/code and the mobile apps.

Claude Code executes on its own: it understands the full structure of a project, plans an approach across multiple files, executes it, runs tests and fixes errors. Since 14 August 2026 new sessions on Pro, Max and Team start in auto mode by default: Claude keeps working without asking about every step, and a classifier is aimed at blocking actions that are irreversible, destructive or reach outside your own environment.

For entrepreneurs without a technical background, that is the big shift: you describe in plain language what you want, and Claude Code writes the code. That is how ClickForest built the projects further on in this article.

Terminal and VS Code

Via the terminal (CLI). You install Claude Code via a one-time command and then launch it from any project folder. Claude reads the entire codebase, modifies files, runs tests, makes commits and resolves issues across multiple files simultaneously. This is the most powerful and complete form, but requires basic comfort with the command line.

Via the VS Code extension. The same capabilities, but directly in your code editor. You open Claude Code as a panel next to your code and give an instruction in plain language. By default the extension works in Auto; switch it to Manual and it shows every change next to the original and asks for permission. The same extension works in Cursor; for JetBrains IDEs there is a separate plugin, which requires the command-line version of Claude Code. The extension has more than 26 million installs (Visual Studio Marketplace, October 2026).

The distinction is practical: the terminal gives more control and more automation at scale, the VS Code extension is the lowest barrier for entrepreneurs who want to learn to build.

ClickForest guides Flemish SMEs in building with AI: from first idea to working custom tool, without needing a full development team.

What has ClickForest built with Claude Code?

ClickForest uses Claude Code as its primary build partner, and the list of projects keeps growing. It shows that custom software is no longer reserved for large budgets.

ClickForest built a complete Astro website (clickforest.com itself) with Claude Code: multilingual in NL, FR and EN, built on Cloudflare Workers, including contact form, AI chatbot and an admin panel. Then came a custom CRM system (crm.clickforest.com), Claude Token Tracker (an in-house extension for Chrome and VS Code), the AI news site Kunstbrein, which reads sources and publishes articles on its own every morning, Veesie, a tool that measures how often brands appear in AI answers, and Nog Eentje, a personal platform for keeping track of series, with AI recommendations. Client projects have also been delivered with Claude Code as the central build environment.

ClickForest guides Flemish SMEs and scale-ups in Mechelen and the surrounding area in deploying AI for growth: from AI chatbots for customer service to building custom software with AI. See what ClickForest built via the projects page.

Which subscription do you need for Claude Desktop?

Claude Cowork is included in all paid plans. Claude Code works on the same plans, but also via API billing for developers working directly with the Anthropic API. The desktop app is free to download; the subscription determines what you can do with it. Everything you do in chat, Cowork and Claude Code counts towards the same usage limit.

When do you choose Cowork and when Claude Code?

The rule of thumb: if the task takes time and requires no code, Cowork is the right choice, and for your local files you need the desktop app. If you already have the new experience, you simply ask for it in the conversation. If it is about building or modifying software, Claude Code is the starting point. Chat remains the fastest route for conversational questions and one-off tasks.

Conclusion

Claude Desktop offers three ways of working, but most users only know one, and since September 2026 the line between chat and Cowork has started to disappear. For professionals with time-consuming knowledge work, Cowork is the biggest undiscovered time saver. It takes a paid subscription and no technical background; you need the desktop app when Claude has to work on your own computer. For entrepreneurs who want to build or have software built, Claude Code is the lowest-barrier path to custom solutions without the associated cost.

Kate Jensen, Head of Americas at Anthropic, put it like this in February 2026: “Engineers think about Claude Code as a tool that they just couldn’t live without anymore.” And: “We expect that every knowledge worker will feel that way about Cowork.”

The investment in a paid Anthropic subscription pays off once you look beyond the chatbox. Want to know how Claude Code or Cowork fits your organisation? See how ClickForest approaches building with AI for Flemish SMEs, or book a discovery call to discuss the possibilities. Prefer to get in touch first? That works too.

Want to read more about the broader AI toolkit? Read the comparison of AI tools by category, the practical guide on AI agents in marketing or the article on writing better prompts. For a broader picture of what AI means today for online marketing or Shopify e-commerce, you will find the latest insights at clickforest.com.