Claude Desktop app features in 2026: chat, notes and writing beyond the browser

In 2026, the Claude Desktop app features the same chat you use in the browser, so notes, drafts and other writing work there just as they do on claude.ai, and Anthropic says your conversations, projects and memory sync between the devices you sign in on. What the desktop app adds needs your computer: desktop extensions that connect Claude to local files and apps through MCP, a quick entry shortcut on the Mac, and computer use, a beta on the Pro and Max plans. We found no notes library of its own on Anthropic's pages, which is where a notes app comes in.

This guide is built from Anthropic's own help center and download page as we read them in October 2026, and each fact links to its page. We ran no tests and took no screenshots, and apps change, so trust the linked page when it differs from this one. We make Barside, a free desktop app for notes, tasks and bookmarks on Windows, Linux and Mac. The second half of this guide shows how Barside connects to Claude Desktop in one click, and where that connection stops.

What the Claude Desktop app features in 2026, next to the browser

The Claude Desktop app features in 2026 start with the same chat as the browser, and Anthropic's install guide lists the app for macOS and Windows, and for Linux as a beta. It needs macOS 13 (Ventura) or later, Windows 10 or later, or on Linux, Ubuntu 22.04 LTS or later or Debian 12 or later. Chat is included on every plan, Free among them, while Claude Code and Cowork are listed for the Pro, Max, Team and Enterprise plans. The download page offers a universal Mac installer, x64 and ARM64 installers for Windows, and a Microsoft Store listing.

The table sums up what Anthropic's pages say about each surface, as of October 2026.

Desktop extensions connect Claude to your computer through MCP

MCP, the Model Context Protocol, is an open protocol that links AI apps with outside tools and data. Anthropic's guide to local MCP servers on Claude Desktop describes desktop extensions as packages that install a local MCP server in one click, with no JSON file to edit by hand. You find them under Settings → Extensions, where Browse extensions opens a directory of tools Anthropic has reviewed. A custom .mcpb file goes in through Advanced settings and the Install Extension… button in its Extension Developer section. The app carries its own Node.js, and extensions can be Node.js, Python or binary servers.

The install guide says extensions can connect Claude to local files, calendars, email and messaging apps. Settings an extension marks as sensitive, such as API keys, are encrypted with your system's secure storage, and Team and Enterprise owners can turn public extensions on or off and upload their own.

The deciding split is in Anthropic's article on when to use desktop and web connectors. Remote connectors, for services you sign in to such as Slack, Notion, Linear and GitHub, are the default and work everywhere you use Claude. Desktop extensions run on your computer and only in Claude Desktop and Claude Code, and they are the kind that reaches local files, folders and apps. That makes the desktop app the place to connect Claude to notes stored on your own drive.

Quick entry, screenshots and dictation on the Mac

Anthropic's quick entry guide is written for the Mac, and it says quick entry is currently only available to macOS users, on every plan. Double-tap the Option key in any app and a box opens for your question. You can switch the shortcut to Option + Space, or one of your own, in Settings → General.

• Screenshots. After you open quick entry, drag across part of the screen and the capture is attached to your message.
• App windows. Click an application window and its contents are attached, so you can ask about what you're looking at.
• Dictation. Caps Lock starts and stops voice input. It's off by default because it takes over the Caps Lock key, and it needs macOS 14 or later with the Speech recognition permission.

On a Mac, quick entry needs the Accessibility permission, and screenshots and window sharing need Screen Recording, both under System Settings → Privacy & Security. Anthropic's desktop app tutorial adds that on Windows and Linux a shortcut you set in Settings brings up Claude, while screenshots from quick entry and Caps Lock dictation are Mac-only. On Linux, the install guide says the Quick Entry hotkey works on X11 and, on native Wayland, depends on the desktop's GlobalShortcuts portal. Dictation and computer use aren't available on Linux.

Computer use and Cowork

Anthropic's article Let Claude use your computer in Cowork describes computer use as a beta for the Pro and Max plans, in Cowork and Claude Code in the desktop app for macOS and Windows. Team and Enterprise plans don't have it at this time. When no connector fits a task, Claude can click, type and open apps on your screen, and it asks for your permission before it uses each app. You turn it on with Enable computer use in Settings → General, and the computer has to stay awake with the app open. Anthropic warns that there is no sandbox between Claude and your applications, and it advises keeping Claude away from sensitive apps such as banking.

Cowork itself now runs on the web and on mobile as well. Anthropic's page on Cowork on web, desktop and mobile still calls the desktop the full experience, because there Claude can also use your local files and browser, and local connectors and plugins with local MCP servers work through the desktop app only. The download page adds Claude in Chrome, a connector that lets Claude navigate pages, click and fill in forms in your browser from the desktop app, and it says Claude Code runs directly in the desktop app for software work.

What stays the same in the browser and the desktop app

The desktop app is another window onto the same account. Anthropic's download page says conversations, projects, memory and preferences sync across the devices you sign in on, and that web-based connectors such as Google Drive and Slack work on the web, the desktop and mobile. The Cowork page adds that projects are available on every surface. For example, a chat you start at your desk to outline an article, or a project that holds your style notes, is waiting when you open claude.ai on another computer.

For writing, the choice comes down to the extras. If you chat, draft and revise, the browser handles that on any computer. The desktop app earns its place when you want a shortcut from any app on the Mac, local tools through extensions, or computer use on Pro or Max.

Benefits of a desktop app over the web browser version, for ChatGPT too

When you weigh the benefits of a desktop app against the web browser version, for ChatGPT or for Claude, three questions settle it: whether the app opens from anywhere on your computer, whether it reaches files and tools that live there, and whether anything you rely on stays behind in the browser. For Claude, Anthropic's pages answer all three, as the sections above show.

For ChatGPT, we could not confirm the details. OpenAI's download page and help center refused our page reader when we checked in October 2026, so this guide lists no ChatGPT desktop features. OpenAI's own download page and help center are the places to check what its desktop apps add today. Barside's guides do name ChatGPT among the AI apps that can use Barside's AI connections, next to Claude Desktop and Cursor.

A simple test helps with either app. Write down what you would want the AI to reach on your computer, such as a folder of drafts or a notes app that keeps its files there. If the list is empty, a browser tab covers your needs. If it isn't, check that the desktop app's own documentation covers those things; for Claude, that is the desktop extensions above.

How Claude Desktop reaches your notes with Barside

If you came looking for Claude Desktop app features for notes and writing, the useful one is the connection to the place your notes already live. Barside is a free desktop app for Windows, Linux and Mac that keeps notes, tasks, reminders, bookmarks and Reading in a library on your computer. Its Use Barside in your AI app settings give Claude Desktop, ChatGPT, Cursor and other MCP apps tools for that library, in the workspaces you choose. The one-click Add to Claude Desktop button makes a connection that covers every workspace and can read and add, but never delete.

1. Download Barside for Windows, Linux or Mac, and install Claude Desktop from Anthropic's download page.
2. In Barside, open Settings and go to Use Barside in your AI app. A quicker route is to press Alt+Shift+Space in any app and type mcp in the search bar.
3. Choose Add to Claude Desktop. Barside makes the connection for every workspace, with permission to read and add.
4. To share fewer workspaces, open More apps and options, pick the connection Add to Claude Desktop made, and choose its workspaces in its Permissions tab. New connection makes a separate connection, and new connections start read-only.
5. Open Claude Desktop and ask about your notes. If Barside's tools don't show up there, the AI connections page has the troubleshooting steps.

What Claude can read and add

Barside's guides name the tools Claude gets through the connection:

• Notes. search_notes and get_note search and read note text in the shared workspaces, as the AI search guide explains. Claude reads linked notes as the titles they show, the columns and cards of kanban boards in notes, and the words in drawings.
• Tasks and reminders. list_tasks lists your checklist tasks. With permission, add_task adds one and update_task changes its text, done state, due date or reminder, and the result shows on the task board. With permission, Claude can also set a reminder on a note.
• Bookmarks. Claude can list your bookmarks for each project, and add them when you allow it.
• Reading. list_reading returns the articles you saved with their highlights, read-only, from your read-it-later inbox.

Barside also offers ready-made prompts. Plan my day and Weekly review start from your tasks, and Meeting follow-up turns a meeting note into decisions and action items, then asks you before it adds any task. The meeting follow-up guide walks through it.

Example requests to try

These are made-up examples with made-up people, to show the kind of request that works:

• Example: Maya, a freelance copywriter, asks Claude Desktop to "find the Harbor Bakery brief in my Clients workspace and draft three headlines in its tone." Claude searches and reads the brief, writes the headlines in the chat, and can add them to her notes if she asks.
• Example: Dev, a graduate student, asks "What tasks are due this week? Add one to email my advisor." Claude uses list_tasks, then add_task, and can set the due date with update_task. The new task appears on Barside's task board.
• Example: Priya, a product manager, picks the Meeting follow-up prompt after a call and approves only the action items she agrees with.
• Example: "Summarize the highlights from the articles I saved to Reading" lets Claude work from list_reading.

Limits of the Barside connection

Know these before you connect, so nothing surprises you later:

• It never deletes. No AI connection deletes anything in Barside. The one-click Claude Desktop connection reads and adds. A connection you make yourself starts read-only, and adding needs the permission Allow adding and updating notes, bookmarks, tasks and reminders.
• Only the workspaces you share. Each connection covers the workspaces you pick, and Claude sees nothing outside them.
• Some things are never shared. The password vault, the Barside assistant's memory and Spaces stay out of every connection. The account labels on bookmarks reach an AI app only when you turn that permission on.
• Claude Desktop does the thinking. Barside has no AI of its own here, and your Claude plan applies to what Claude Desktop uses.
• One click is for the desktop app. Add to Claude Desktop sets up Claude Desktop on your computer. For ChatGPT, Cursor or another AI app, the AI connections page shows the other ways to connect.

Privacy: where your notes live and what Claude sees

Your Barside library lives on your computer, and the privacy guide explains where. Through the connection, the notes Claude reads from the workspaces you share go to Anthropic as part of your conversation, and Anthropic's terms for your plan apply. If a workspace holds client work you can't send to an AI company, leave it out of the connection.

Barside's own AI features are separate from this. The account you connect in Settings → AI runs Barside's assistant and agents, and Barside keeps that key encrypted on your computer. Barside also counts which features are used: it sends barside.space the names of the features used that day, with the system and the Barside version, never notes, files or who you are. It's on by default, and a switch in Settings turns it off. Read how the AI you connect uses your data for the details.

On Claude's side, Anthropic's guides say sensitive extension settings are kept in your system's secure storage, and they ask you to keep computer use away from apps such as banking.

How it compares with Barside's own assistant

You can bring AI to your Barside notes in two ways, and you can use both.

Choose Claude Desktop when you already work there, with its projects and extensions. Choose the AI assistant for your computer and notes when you want edits in place with a before and after, and Undo for every reply. The guide to AI notes apps where you bring your own key covers switching models without moving your notes. If you're still choosing a notes app to pair with Claude, compare the best second brain apps and the Obsidian alternative with the AI you choose.

Works well with