diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..886ddd1
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,7 @@
+node_modules
+dist
+build
+*.min.js
+**/*.gen.ts
+internal/replay/dist
+replay-ui/dist
diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 0000000..1c5e966
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1,3 @@
+{
+  "printWidth": 80
+}