diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..c45099766
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+app/bin/
+app/pde.jar
+build/macosx/work/
+core/bin/
+core/core.jar
\ No newline at end of file