diff --git a/atom/browser/api/lib/browser-window.coffee b/atom/browser/api/lib/browser-window.coffee
index bf90f4776473..d76bfbf4283c 100644
--- a/atom/browser/api/lib/browser-window.coffee
+++ b/atom/browser/api/lib/browser-window.coffee
@@ -35,6 +35,10 @@ BrowserWindow::openDevTools = ->
   @devToolsWebContents = @getDevToolsWebContents()
   @devToolsWebContents.once 'destroyed', => @devToolsWebContents = null
 
+  # Emit devtools events.
+  @emit 'dev-tools-opened'
+  @devToolsWebContents.once 'destroyed', => @emit 'dev-tools-closed'
+
 BrowserWindow::toggleDevTools = ->
   if @isDevToolsOpened() then @closeDevTools() else @openDevTools()
 
diff --git a/docs/api/browser-window.md b/docs/api/browser-window.md
index b7726b590a78..cc413abed241 100644
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
@@ -138,6 +138,14 @@ Emitted when window loses focus.
 
 Emitted when window gains focus.
 
+### Event: 'dev-tools-opened'
+
+Emitted when devtools is opened.
+
+### Event: 'dev-tools-closed'
+
+Emitted when devtools is closed.
+
 ### Class Method: BrowserWindow.getAllWindows()
 
 Returns an array of all opened browser windows.