diff --git a/spec/app/root-view-spec.coffee b/spec/app/root-view-spec.coffee
index aa9a881ae..d28ea4d07 100644
--- a/spec/app/root-view-spec.coffee
+++ b/spec/app/root-view-spec.coffee
@@ -625,3 +625,34 @@ describe "RootView", ->
                 expect(rootView.getActiveEditor()).toBe editor1
                 expect(editor1.getPath()).toBe path
                 expect(editSession).toBe rootView.getActiveEditor().activeEditSession
+
+  describe "save-all", ->
+    it "saves all open editors", ->
+      rootView.remove()
+      file1 = '/tmp/atom-temp1.txt'
+      file2 = '/tmp/atom-temp2.txt'
+      fs.write(file1, "file1")
+      fs.write(file2, "file2")
+      rootView = new RootView(file1)
+
+      editor1 = rootView.getActiveEditor()
+      buffer1 = editor1.activeEditSession.buffer
+      expect(buffer1.getText()).toBe("file1")
+      expect(buffer1.isModified()).toBe(false)
+      buffer1.setText('edited1')
+      expect(buffer1.isModified()).toBe(true)
+
+      editor2 = editor1.splitRight()
+      editor2.edit(rootView.project.buildEditSessionForPath('atom-temp2.txt'))
+      buffer2 = editor2.activeEditSession.buffer
+      expect(buffer2.getText()).toBe("file2")
+      expect(buffer2.isModified()).toBe(false)
+      buffer2.setText('edited2')
+      expect(buffer2.isModified()).toBe(true)
+
+      rootView.saveAll()
+
+      expect(buffer1.isModified()).toBe(false)
+      expect(fs.read(buffer1.getPath())).toBe("edited1")
+      expect(buffer2.isModified()).toBe(false)
+      expect(fs.read(buffer2.getPath())).toBe("edited2")
diff --git a/src/app/keymaps/atom.coffee b/src/app/keymaps/atom.coffee
index 1949c4c0f..bfe0f2306 100644
--- a/src/app/keymaps/atom.coffee
+++ b/src/app/keymaps/atom.coffee
@@ -7,3 +7,4 @@ window.keymap.bindKeys '*'
   up: 'move-up'
   pagedown: 'page-down'
   pageup: 'page-up'
+  'meta-S' : 'save-all'
diff --git a/src/app/root-view.coffee b/src/app/root-view.coffee
index a1a0cfba3..316f69fc3 100644
--- a/src/app/root-view.coffee
+++ b/src/app/root-view.coffee
@@ -64,6 +64,7 @@ class RootView extends View
     @on 'increase-font-size', => @setFontSize(@getFontSize() + 1)
     @on 'decrease-font-size', => @setFontSize(@getFontSize() - 1)
     @on 'focus-next-pane', => @focusNextPane()
+    @on 'save-all', => @saveAll()
 
   afterAttach: (onDom) ->
     @focus() if onDom
@@ -217,3 +218,5 @@ class RootView extends View
     catch error
       console.error "Failed to load `#{atom.configFilePath}`", error.stack, error
 
+  saveAll: ->
+    editor.save() for editor in @getEditors()