# Debug tool window > **TL;DR** > Show/hide: `View | Tool Windows | Debug` or `Alt+5` (Windows), `⌘ 5` (macOS), `⌘ 5` (IntelliJ IDEA Classic (macOS)), `⌘ 5` (macOS System Shortcuts), `Alt+5` (XWin), `Alt+5` (GNOME), `Alt+5` (KDE), `Alt+5` (Emacs), `Alt+5` (Sublime Text), `⌘ 5` (Sublime Text (macOS)), `⌘ 7` (Xcode), `Alt+5` (Visual Studio), `⌘ 5` (Visual Studio (macOS)), `Alt+5` (ReSharper), `⌘ 5` (ReSharper (macOS)), `Alt+5` (QtCreator), `⌘ 5` (QtCreator (macOS)), `Alt+5` (NetBeans), `Alt+5` (Eclipse), `⌘ 5` (Eclipse (macOS)) > > > > Configure: `Settings | Build, Execution, Deployment | Debugger` The Debug tool window opens when you [start](starting-the-debugger-session.html#start-debugging) a debug session. With this window, you can perform various debugger actions and analyze the program data (frames, threads, variables, and so on). > **Note:** > This is an overview of the Debug tool window. For general instructions on using tool windows, refer to [Tool windows](tool-windows.html). By default, the Debug tool window opens when your program hits a breakpoint and is not hidden when the session is terminated. To change this behavior, go to the Build, Execution, Deployment | Debugger settings page `Ctrl+Alt+S` (Windows), `⌘ Comma` (macOS), `⌘ Comma` (IntelliJ IDEA Classic (macOS)), `⌘ Comma` (macOS System Shortcuts), `Ctrl+Alt+S` (XWin), `Ctrl+Alt+S` (GNOME), `Ctrl+Alt+S` (KDE), `Ctrl+Alt+S` (Emacs), `Ctrl+Alt+S` (Sublime Text), `⌘ Comma` (Sublime Text (macOS)), `⌘ Comma` (Xcode), `Ctrl+Alt+S` (Visual Studio), `⌘ Comma` (Visual Studio (macOS)), `Ctrl+Alt+S` (ReSharper), `⌘ Comma` (ReSharper (macOS)), `Ctrl+Alt+S` (QtCreator), `⌘ Comma` (QtCreator (macOS)), `Ctrl+Alt+S` (NetBeans), `Ctrl+Alt+S` (Eclipse), `⌘ Comma` (Eclipse (macOS)) and clear the Show debug window on breakpoint checkbox. ![Debug tool window overview](https://resources.jetbrains.com/help/img/idea/2026.2/cl_debugtoolwindow_overview.png) ## Sessions The available debug sessions are separated into tabs in the top part of the Debug tool window. ![Session tabs](https://resources.jetbrains.com/help/img/idea/2026.2/cl_debugtoolwindow_sessions.png) If you [enable the Services tool window](using-services-tool-window.html) for specific run/debug configurations, the entire view of the Debug tool window will be displayed inside the Services tool window when you debug any of these configurations. All the information in the editor, like [inline variable values](examining-suspended-program.html#inline-view) and execution point, is shown for the selected session tab. This is important if you are running several debug sessions in parallel that use the same code. When you close a tab, the corresponding debug session terminates. ## Tabs The Debug tool window shows the following tabs for each session: * [Frames](examining-suspended-program.html#examine-frames): lets you navigate in the call stacks of the threads. * [Variables](examining-suspended-program.html#variables): lists the variables available in the current context and lets you analyze and modify the program state. * [Watches](examining-suspended-program.html#watches): lets you manage watches. By default, watches are shown on the Variables tab for more efficient use of the screen space. If you have a lot of watches, consider viewing them in a separate tab. * [Debugger console](debugger-console.html): displays the GDB/LLDB output and error streams, and lets you run debugger commands. * [Threads](examining-suspended-program.html#examine-frames): displays the list of live threads, lets you switch between them, and export a thread dump. * [Memory View](memory-view.html) : shows raw memory of the running process. * [Parallel Stacks](parallel-stacks-view.html): shows thread call stack information for all the threads in your application. Procedure: Switch tabs * To cycle through the tool window tabs, press `Alt+Right` (Windows), `⌘ ⇧ ]` (macOS), `⌃ →` (IntelliJ IDEA Classic (macOS)), `⌘ ⌥ →` (macOS System Shortcuts), `Alt+Right` (XWin), `Alt+Right` (GNOME), `Alt+Right` (KDE), `Alt+Right` (Emacs), `Ctrl+Page Down` (Sublime Text), `⌘ ⇧ ]` (Sublime Text (macOS)), `⌘ ⇧ ]` (Xcode), `Alt+Right` (Visual Studio), `⌘ ⇧ ]` (Visual Studio (macOS)), `Alt+Right` (ReSharper), `⌘ ⇧ ]` (ReSharper (macOS)), `Alt+Right` (QtCreator), `Alt+Right` (QtCreator (macOS)), `Ctrl+Page Down` (NetBeans), `Ctrl+F6` (Eclipse), `⌘ F6` (Eclipse (macOS)) and `Alt+Left` (Windows), `⌘ ⇧ [` (macOS), `⌃ ←` (IntelliJ IDEA Classic (macOS)), `⌘ ⌥ ←` (macOS System Shortcuts), `Alt+Left` (XWin), `Alt+Left` (GNOME), `Alt+Left` (KDE), `Alt+Left` (Emacs), `Ctrl+Page Up` (Sublime Text), `⌘ ⇧ [` (Sublime Text (macOS)), `⌘ ⇧ [` (Xcode), `Alt+Left` (Visual Studio), `⌘ ⇧ [` (Visual Studio (macOS)), `Alt+Left` (ReSharper), `⌘ ⇧ [` (ReSharper (macOS)), `Alt+Left` (QtCreator), `Alt+Left` (QtCreator (macOS)), `Ctrl+Page Up` (NetBeans), `Ctrl+Shift+F6` (Eclipse), `⌘ ⇧ F6` (Eclipse (macOS)). Procedure: Show/hide tabs * Click ![Layout options button](https://resources.jetbrains.com/help/img/idea/2026.2/app.debugger.restoreLayout.svg) and select which tabs you want to see. ![Debugger tool window tabs menu](https://resources.jetbrains.com/help/img/idea/2026.2/cl_debugtoolwindow_tabslayout.png) Procedure: Move tabs You can arrange the tabs to fit your preference. You can move a tab to another location or group a tab with another tab, so that they share the same space on the screen. * Drag the tab header to the desired location. The blue frame indicates the destination. Procedure: Restore default layout If you changed the layout of the Debug tool window and don't like the new arrangement, you can revert it to the default state. * Click ![Layout options button](https://resources.jetbrains.com/help/img/idea/2026.2/app.debugger.restoreLayout.svg) in the top-right corner of the Debug tool window, then click Restore Default Layout. ## See also ### How tos [Working with Tool Windows](tool-windows.html) ### External Links [Webinar Recording: CLion Ask Me Anything Session: Debugger](https://www.youtube.com/watch?v=Kz5NQiji9YU5&t=244s) [CLion Debugging Beyond the Basics - Part 1 - Suspended](https://blog.jetbrains.com/clion/2021/03/clion-debugging-beyond-the-basics-part-1-suspended) [Video playlist: CLion Debugger](https://www.youtube.com/playlist?list=PLQ176FUIyIUawCufBKmmWkRq2t5sl1xsM)