diff --git a/.gitignore b/.gitignore
index 3d50d91379..a18f203605 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,16 @@
 /logs/
-.idea/
\ No newline at end of file
+.idea/
+
+# Netbeans project files
+nbproject
+tools/MapleCouponInstaller/nbproject
+tools/MapleIdRetriever/nbproject
+tools/MobBookIndexer/nbproject
+tools/MobBookUpdate/nbproject
+
+# build files
+build
+tools/MapleCouponInstaller/build
+tools/MapleIdRetriever/build
+tools/MobBookIndexer/build
+tools/MobBookUpdate/build