diff --git a/pkg/window/messages.go b/pkg/window/messages.go
index b999e07..f663b4b 100644
--- a/pkg/window/messages.go
+++ b/pkg/window/messages.go
@@ -72,3 +72,9 @@ type ActionWindowResized struct {
 
 type ActionWindowFocused struct{ Name string }
 type ActionWindowBlurred struct{ Name string }
+
+type ActionFilesDropped struct {
+	Name     string   `json:"name"`     // window name
+	Paths    []string `json:"paths"`
+	TargetID string   `json:"targetId,omitempty"`
+}
diff --git a/pkg/window/mock_platform.go b/pkg/window/mock_platform.go
index 3317ada..f460d77 100644
--- a/pkg/window/mock_platform.go
+++ b/pkg/window/mock_platform.go
@@ -35,6 +35,7 @@ type MockWindow struct {
 	visible, alwaysOnTop bool
 	closed               bool
 	eventHandlers        []func(WindowEvent)
+	fileDropHandlers     []func(paths []string, targetID string)
 }
 
 func (w *MockWindow) Name() string                            { return w.name }
@@ -58,3 +59,6 @@ func (w *MockWindow) Hide()                                   { w.visible = fals
 func (w *MockWindow) Fullscreen()                             {}
 func (w *MockWindow) UnFullscreen()                           {}
 func (w *MockWindow) OnWindowEvent(handler func(WindowEvent)) { w.eventHandlers = append(w.eventHandlers, handler) }
+func (w *MockWindow) OnFileDrop(handler func(paths []string, targetID string)) {
+	w.fileDropHandlers = append(w.fileDropHandlers, handler)
+}
diff --git a/pkg/window/mock_test.go b/pkg/window/mock_test.go
index 1329772..4b989ef 100644
--- a/pkg/window/mock_test.go
+++ b/pkg/window/mock_test.go
@@ -34,6 +34,7 @@ type mockWindow struct {
 	visible, alwaysOnTop bool
 	closed               bool
 	eventHandlers        []func(WindowEvent)
+	fileDropHandlers     []func(paths []string, targetID string)
 }
 
 func (w *mockWindow) Name() string                            { return w.name }
@@ -57,6 +58,9 @@ func (w *mockWindow) Hide()                                   { w.visible = fals
 func (w *mockWindow) Fullscreen()                             {}
 func (w *mockWindow) UnFullscreen()                           {}
 func (w *mockWindow) OnWindowEvent(handler func(WindowEvent)) { w.eventHandlers = append(w.eventHandlers, handler) }
+func (w *mockWindow) OnFileDrop(handler func(paths []string, targetID string)) {
+	w.fileDropHandlers = append(w.fileDropHandlers, handler)
+}
 
 // emit fires a test event to all registered handlers.
 func (w *mockWindow) emit(e WindowEvent) {
@@ -64,3 +68,10 @@ func (w *mockWindow) emit(e WindowEvent) {
 		h(e)
 	}
 }
+
+// emitFileDrop simulates a file drop on the window.
+func (w *mockWindow) emitFileDrop(paths []string, targetID string) {
+	for _, h := range w.fileDropHandlers {
+		h(paths, targetID)
+	}
+}
diff --git a/pkg/window/platform.go b/pkg/window/platform.go
index 7db1319..f8e62ee 100644
--- a/pkg/window/platform.go
+++ b/pkg/window/platform.go
@@ -56,6 +56,9 @@ type PlatformWindow interface {
 
 	// Events
 	OnWindowEvent(handler func(event WindowEvent))
+
+	// File drop
+	OnFileDrop(handler func(paths []string, targetID string))
 }
 
 // WindowEvent is emitted by the backend for window state changes.
diff --git a/pkg/window/service.go b/pkg/window/service.go
index d038400..85286e5 100644
--- a/pkg/window/service.go
+++ b/pkg/window/service.go
@@ -168,6 +168,13 @@ func (s *Service) trackWindow(pw PlatformWindow) {
 			_ = s.Core().ACTION(ActionWindowClosed{Name: e.Name})
 		}
 	})
+	pw.OnFileDrop(func(paths []string, targetID string) {
+		_ = s.Core().ACTION(ActionFilesDropped{
+			Name:     pw.Name(),
+			Paths:    paths,
+			TargetID: targetID,
+		})
+	})
 }
 
 func (s *Service) taskCloseWindow(name string) error {
diff --git a/pkg/window/service_test.go b/pkg/window/service_test.go
index 05997ac..1911044 100644
--- a/pkg/window/service_test.go
+++ b/pkg/window/service_test.go
@@ -2,6 +2,7 @@ package window
 
 import (
 	"context"
+	"sync"
 	"testing"
 
 	"forge.lthn.ai/core/go/pkg/core"
@@ -137,3 +138,39 @@ func TestTaskMaximise_Good(t *testing.T) {
 	info := result.(*WindowInfo)
 	assert.True(t, info.Maximized)
 }
+
+func TestFileDrop_Good(t *testing.T) {
+	_, c := newTestWindowService(t)
+
+	// Open a window
+	result, _, _ := c.PERFORM(TaskOpenWindow{
+		Opts: []WindowOption{WithName("drop-test")},
+	})
+	info := result.(WindowInfo)
+	assert.Equal(t, "drop-test", info.Name)
+
+	// Capture broadcast actions
+	var dropped ActionFilesDropped
+	var mu sync.Mutex
+	c.RegisterAction(func(_ *core.Core, msg core.Message) error {
+		if a, ok := msg.(ActionFilesDropped); ok {
+			mu.Lock()
+			dropped = a
+			mu.Unlock()
+		}
+		return nil
+	})
+
+	// Get the mock window and simulate file drop
+	svc := core.MustServiceFor[*Service](c, "window")
+	pw, ok := svc.Manager().Get("drop-test")
+	require.True(t, ok)
+	mw := pw.(*mockWindow)
+	mw.emitFileDrop([]string{"/tmp/file1.txt", "/tmp/file2.txt"}, "upload-zone")
+
+	mu.Lock()
+	assert.Equal(t, "drop-test", dropped.Name)
+	assert.Equal(t, []string{"/tmp/file1.txt", "/tmp/file2.txt"}, dropped.Paths)
+	assert.Equal(t, "upload-zone", dropped.TargetID)
+	mu.Unlock()
+}
diff --git a/pkg/window/wails.go b/pkg/window/wails.go
index ef2ac51..7d9fbb1 100644
--- a/pkg/window/wails.go
+++ b/pkg/window/wails.go
@@ -120,6 +120,18 @@ func (ww *wailsWindow) OnWindowEvent(handler func(event WindowEvent)) {
 	}
 }
 
+func (ww *wailsWindow) OnFileDrop(handler func(paths []string, targetID string)) {
+	ww.w.OnWindowEvent(events.Common.WindowFilesDropped, func(event *application.WindowEvent) {
+		files := event.Context().DroppedFiles()
+		details := event.Context().DropTargetDetails()
+		targetID := ""
+		if details != nil {
+			targetID = details.ElementID
+		}
+		handler(files, targetID)
+	})
+}
+
 // Ensure wailsWindow satisfies PlatformWindow at compile time.
 var _ PlatformWindow = (*wailsWindow)(nil)