diff --git a/docs/IPC.md b/docs/IPC.md
index 8d7751e0..88d37e91 100644
--- a/docs/IPC.md
+++ b/docs/IPC.md
@@ -532,6 +532,54 @@ dms ipc call systemupdater close
 dms ipc call systemupdater updatestatus
 ```
 
+## Target: `defaultApp`
+
+Launch applications configured in Settings > Default Apps.
+
+### Functions
+
+**`browser`**
+- Launch the configured default web browser
+- Returns: Launch request confirmation
+
+**`fileManager`**
+- Launch the configured default file manager
+- Returns: Launch request confirmation
+
+**`textEditor`**
+- Launch the configured default text editor
+- Returns: Launch request confirmation
+
+**`pdfReader`**
+- Launch the configured default PDF reader
+- Returns: Launch request confirmation
+
+**`imageViewer`**
+- Launch the configured default image viewer
+- Returns: Launch request confirmation
+
+**`videoPlayer`**
+- Launch the configured default video player
+- Returns: Launch request confirmation
+
+**`musicPlayer`**
+- Launch the configured default music player
+- Returns: Launch request confirmation
+
+**`mail`**
+- Launch the configured default mail client
+- Returns: Launch request confirmation
+
+**`calendar`**
+- Launch the configured default calendar application
+- Returns: Launch request confirmation
+
+### Examples
+```bash
+dms ipc call defaultApp browser
+dms ipc call defaultApp fileManager
+```
+
 ## Modal Controls
 
 These targets control various modal windows and overlays.
diff --git a/quickshell/Common/KeybindActions.js b/quickshell/Common/KeybindActions.js
index 401ee4e4..f5a3a34b 100644
--- a/quickshell/Common/KeybindActions.js
+++ b/quickshell/Common/KeybindActions.js
@@ -11,6 +11,15 @@ const DMS_ACTIONS = [
     { id: "spawn dms ipc call spotlight toggle", label: "Default Launcher: Toggle" },
     { id: "spawn dms ipc call spotlight open", label: "Default Launcher: Open" },
     { id: "spawn dms ipc call spotlight close", label: "Default Launcher: Close" },
+    { id: "spawn dms ipc call defaultApp browser", label: "Default Web Browser: Open" },
+    { id: "spawn dms ipc call defaultApp fileManager", label: "Default File Manager: Open" },
+    { id: "spawn dms ipc call defaultApp mail", label: "Default Mail: Open" },
+    { id: "spawn dms ipc call defaultApp calendar", label: "Default Calendar: Open" },
+    { id: "spawn dms ipc call defaultApp textEditor", label: "Default Text Editor: Open" },
+    { id: "spawn dms ipc call defaultApp pdfReader", label: "Default PDF Reader: Open" },
+    { id: "spawn dms ipc call defaultApp imageViewer", label: "Default Image Viewer: Open" },
+    { id: "spawn dms ipc call defaultApp videoPlayer", label: "Default Video Player: Open" },
+    { id: "spawn dms ipc call defaultApp musicPlayer", label: "Default Music Player: Open" },
     { id: "spawn dms ipc call spotlight-bar toggle", label: "Spotlight Bar: Toggle" },
     { id: "spawn dms ipc call spotlight-bar open", label: "Spotlight Bar: Open" },
     { id: "spawn dms ipc call spotlight-bar close", label: "Spotlight Bar: Close" },
diff --git a/quickshell/DMSShellIPC.qml b/quickshell/DMSShellIPC.qml
index da15628d..8ef1af36 100644
--- a/quickshell/DMSShellIPC.qml
+++ b/quickshell/DMSShellIPC.qml
@@ -1,4 +1,5 @@
 import QtQuick
+import Quickshell
 import Quickshell.Io
 import Quickshell.Hyprland
 import Quickshell.Wayland
@@ -56,6 +57,93 @@ Item {
         return currentBar;
     }
 
+    readonly property var defaultAppMimeTypes: ({
+            browser: "x-scheme-handler/https",
+            fileManager: "inode/directory",
+            textEditor: "text/plain",
+            imageViewer: "image/png",
+            videoPlayer: "video/mp4",
+            musicPlayer: "audio/mpeg",
+            pdfReader: "application/pdf",
+            mail: "x-scheme-handler/mailto",
+            calendar: "x-scheme-handler/calendar"
+        })
+
+    function launchDesktopId(desktopId, appName) {
+        if (!desktopId || desktopId.length === 0) {
+            log.warn("No default app configured for:", appName);
+            return false;
+        }
+
+        let entry = DesktopEntries.heuristicLookup(desktopId);
+        if (!entry && desktopId.endsWith(".desktop")) {
+            entry = DesktopEntries.heuristicLookup(desktopId.slice(0, -8));
+        }
+        if (!entry) {
+            log.warn("Default app desktop entry not found:", desktopId, "for:", appName);
+            return false;
+        }
+
+        SessionService.launchDesktopEntry(entry);
+        AppUsageHistoryData.addAppUsage(entry);
+        return true;
+    }
+
+    function launchDefaultMimeApp(appName, mimeType) {
+        DMSService.sendRequest("mime.getDefault", {
+            "mimeType": mimeType
+        }, response => {
+            if (response.error) {
+                log.warn("Failed to resolve default app:", appName, response.error);
+                return;
+            }
+            const result = response.result || {};
+            root.launchDesktopId(result.desktopId || "", appName);
+        });
+
+        return `DEFAULTAPP_LAUNCH_REQUESTED: ${appName}`;
+    }
+
+    IpcHandler {
+        function browser(): string {
+            return root.launchDefaultMimeApp("browser", root.defaultAppMimeTypes.browser);
+        }
+
+        function fileManager(): string {
+            return root.launchDefaultMimeApp("fileManager", root.defaultAppMimeTypes.fileManager);
+        }
+
+        function textEditor(): string {
+            return root.launchDefaultMimeApp("textEditor", root.defaultAppMimeTypes.textEditor);
+        }
+
+        function imageViewer(): string {
+            return root.launchDefaultMimeApp("imageViewer", root.defaultAppMimeTypes.imageViewer);
+        }
+
+        function videoPlayer(): string {
+            return root.launchDefaultMimeApp("videoPlayer", root.defaultAppMimeTypes.videoPlayer);
+        }
+
+        function musicPlayer(): string {
+            return root.launchDefaultMimeApp("musicPlayer", root.defaultAppMimeTypes.musicPlayer);
+        }
+
+        function pdfReader(): string {
+            return root.launchDefaultMimeApp("pdfReader", root.defaultAppMimeTypes.pdfReader);
+        }
+
+        function mail(): string {
+            return root.launchDefaultMimeApp("mail", root.defaultAppMimeTypes.mail);
+        }
+
+        function calendar(): string {
+            return root.launchDefaultMimeApp("calendar", root.defaultAppMimeTypes.calendar);
+        }
+
+        target: "defaultApp"
+    }
+
     IpcHandler {
         function open() {
             root.powerMenuModalLoader.active = true;