diff --git a/actions-expressions/.prettierignore b/actions-expressions/.prettierignore
new file mode 100644
index 0000000..ce98533
--- /dev/null
+++ b/actions-expressions/.prettierignore
@@ -0,0 +1,5 @@
+node_modules
+dist
+*.md
+*.js
+*.json
diff --git a/actions-languageserver/.prettierignore b/actions-languageserver/.prettierignore
new file mode 100644
index 0000000..ce98533
--- /dev/null
+++ b/actions-languageserver/.prettierignore
@@ -0,0 +1,5 @@
+node_modules
+dist
+*.md
+*.js
+*.json
diff --git a/actions-workflow-parser/.prettierignore b/actions-workflow-parser/.prettierignore
new file mode 100644
index 0000000..ce98533
--- /dev/null
+++ b/actions-workflow-parser/.prettierignore
@@ -0,0 +1,5 @@
+node_modules
+dist
+*.md
+*.js
+*.json
diff --git a/browser-playground/.prettierignore b/browser-playground/.prettierignore
new file mode 100644
index 0000000..ce98533
--- /dev/null
+++ b/browser-playground/.prettierignore
@@ -0,0 +1,5 @@
+node_modules
+dist
+*.md
+*.js
+*.json