diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000..e5c939f43b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,39 @@
+.DS_STORE
+node_modules
+scripts/flow/*/.flowconfig
+.flowconfig
+*~
+*.pyc
+.grunt
+_SpecRunner.html
+__benchmarks__
+build/
+remote-repo/
+coverage/
+.module-cache
+fixtures/dom/public/react-dom.js
+fixtures/dom/public/react.js
+test/the-files-to-test.generated.js
+*.log*
+chrome-user-data
+*.sublime-project
+*.sublime-workspace
+.idea
+*.iml
+.vscode
+*.swp
+*.swo
+
+packages/react-devtools-core/dist
+packages/react-devtools-extensions/chrome/build
+packages/react-devtools-extensions/chrome/*.crx
+packages/react-devtools-extensions/chrome/*.pem
+packages/react-devtools-extensions/firefox/build
+packages/react-devtools-extensions/firefox/*.xpi
+packages/react-devtools-extensions/firefox/*.pem
+packages/react-devtools-extensions/shared/build
+packages/react-devtools-extensions/.tempUserDataDir
+packages/react-devtools-fusebox/dist
+packages/react-devtools-inline/dist
+packages/react-devtools-shell/dist
+packages/react-devtools-timeline/dist
\ No newline at end of file