diff --git a/.changeset/sharp-cheetahs-perform.md b/.changeset/sharp-cheetahs-perform.md
new file mode 100644
index 000000000000..98593c2a71ad
--- /dev/null
+++ b/.changeset/sharp-cheetahs-perform.md
@@ -0,0 +1,5 @@
+---
+"create-cloudflare": patch
+---
+
+Enable nodejs_compat by default for templates generated by C3
diff --git a/fixtures/vitest-pool-workers-examples/basics-integration-auxiliary/wrangler.toml b/fixtures/vitest-pool-workers-examples/basics-integration-auxiliary/wrangler.toml
index cbc5a55606e6..c4d2d5338619 100644
--- a/fixtures/vitest-pool-workers-examples/basics-integration-auxiliary/wrangler.toml
+++ b/fixtures/vitest-pool-workers-examples/basics-integration-auxiliary/wrangler.toml
@@ -1,3 +1,3 @@
 name = "basics-integration-auxiliary"
 main = "src/index.ts"
-compatibility_date = "2024-01-01"
+compatibility_date = "2024-01-01"
\ No newline at end of file
diff --git a/packages/create-cloudflare/templates-experimental/hello-world-assets-only/templates/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/hello-world-assets-only/templates/wrangler.jsonc
index 9a612e6a142b..8f7829ec2c3f 100644
--- a/packages/create-cloudflare/templates-experimental/hello-world-assets-only/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/hello-world-assets-only/templates/wrangler.jsonc
@@ -1,6 +1,7 @@
 {
   "name": "<TBD>",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "directory": "./public"
   },
diff --git a/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/js/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/js/wrangler.jsonc
index c739da50d09e..ae57810c9983 100644
--- a/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/js/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/js/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.js",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "binding": "ASSETS",
     "directory": "./public"
diff --git a/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/ts/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/ts/wrangler.jsonc
index a7142528c33c..e9fef1bec614 100644
--- a/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/hello-world-durable-object-with-assets/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "migrations": [
     {
       "new_classes": [
diff --git a/packages/create-cloudflare/templates-experimental/hono/templates/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/hono/templates/wrangler.jsonc
index 5b93fb6f101b..1c82b67b7f45 100644
--- a/packages/create-cloudflare/templates-experimental/hono/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/hono/templates/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "binding": "ASSETS",
     "directory": "./public"
diff --git a/packages/create-cloudflare/templates-experimental/nuxt/templates/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/nuxt/templates/wrangler.jsonc
index 58d5befda8b1..83ff05abcd75 100644
--- a/packages/create-cloudflare/templates-experimental/nuxt/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/nuxt/templates/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "./.output/server/index.mjs",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "binding": "ASSETS",
     "directory": "./.output/public/"
diff --git a/packages/create-cloudflare/templates-experimental/remix/templates/wrangler.toml b/packages/create-cloudflare/templates-experimental/remix/templates/wrangler.toml
index d518046f90fe..16997e22cc05 100644
--- a/packages/create-cloudflare/templates-experimental/remix/templates/wrangler.toml
+++ b/packages/create-cloudflare/templates-experimental/remix/templates/wrangler.toml
@@ -1,6 +1,7 @@
 #:schema node_modules/wrangler/config-schema.json
 name = "<TBD>"
 compatibility_date = "<TBD>"
+compatibility_flags = ["nodejs_compat"]
 main = "./server.ts"
 assets = { directory = "./build/client" }
 
diff --git a/packages/create-cloudflare/templates-experimental/svelte/templates/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/svelte/templates/wrangler.jsonc
index 66983a658b5a..8c6599fa0075 100644
--- a/packages/create-cloudflare/templates-experimental/svelte/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/svelte/templates/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": ".svelte-kit/cloudflare/_worker.js",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "binding": "ASSETS",
     "directory": ".svelte-kit/cloudflare"
diff --git a/packages/create-cloudflare/templates-experimental/vue/templates/wrangler.jsonc b/packages/create-cloudflare/templates-experimental/vue/templates/wrangler.jsonc
index 5658ab40237d..6c60219aa0b5 100644
--- a/packages/create-cloudflare/templates-experimental/vue/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates-experimental/vue/templates/wrangler.jsonc
@@ -1,6 +1,7 @@
 {
   "name": "<TBD>",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "assets": {
     "directory": "./dist"
   },
diff --git a/packages/create-cloudflare/templates/hello-world-durable-object/js/wrangler.jsonc b/packages/create-cloudflare/templates/hello-world-durable-object/js/wrangler.jsonc
index 1474cae0b0a6..374a82d4af81 100644
--- a/packages/create-cloudflare/templates/hello-world-durable-object/js/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/hello-world-durable-object/js/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.js",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "migrations": [
     {
       "new_classes": [
diff --git a/packages/create-cloudflare/templates/hello-world-durable-object/ts/wrangler.jsonc b/packages/create-cloudflare/templates/hello-world-durable-object/ts/wrangler.jsonc
index fcdde6080bb1..355b9924d625 100644
--- a/packages/create-cloudflare/templates/hello-world-durable-object/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/hello-world-durable-object/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "migrations": [
     {
       "new_classes": [
diff --git a/packages/create-cloudflare/templates/hello-world/js/wrangler.jsonc b/packages/create-cloudflare/templates/hello-world/js/wrangler.jsonc
index 168bc0dd9a0a..50262da76862 100644
--- a/packages/create-cloudflare/templates/hello-world/js/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/hello-world/js/wrangler.jsonc
@@ -2,6 +2,7 @@
 	"name": "<TBD>",
 	"main": "src/index.js",
 	"compatibility_date": "<TBD>",
+	"compatibility_flags": ["nodejs_compat"],
 	"observability": {
 		"enabled": true,
 	},
diff --git a/packages/create-cloudflare/templates/hello-world/ts/wrangler.jsonc b/packages/create-cloudflare/templates/hello-world/ts/wrangler.jsonc
index 435aed249941..863439ba0cf3 100644
--- a/packages/create-cloudflare/templates/hello-world/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/hello-world/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
 	"name": "<TBD>",
 	"main": "src/index.ts",
 	"compatibility_date": "<TBD>",
+	"compatibility_flags": ["nodejs_compat"],
 	"observability": {
 		"enabled": true,
 	},
diff --git a/packages/create-cloudflare/templates/hono/templates/wrangler.jsonc b/packages/create-cloudflare/templates/hono/templates/wrangler.jsonc
index 0d4b76dc198a..f44df429028c 100644
--- a/packages/create-cloudflare/templates/hono/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/hono/templates/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   }
diff --git a/packages/create-cloudflare/templates/openapi/ts/wrangler.jsonc b/packages/create-cloudflare/templates/openapi/ts/wrangler.jsonc
index 0d4b76dc198a..f44df429028c 100644
--- a/packages/create-cloudflare/templates/openapi/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/openapi/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   }
diff --git a/packages/create-cloudflare/templates/pre-existing/js/wrangler.jsonc b/packages/create-cloudflare/templates/pre-existing/js/wrangler.jsonc
new file mode 100644
index 000000000000..434c2f6d203d
--- /dev/null
+++ b/packages/create-cloudflare/templates/pre-existing/js/wrangler.jsonc
@@ -0,0 +1,6 @@
+{
+  "name": "<TBD>",
+  "main": "src/index.js",
+  "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"]
+}
diff --git a/packages/create-cloudflare/templates/queues/js/wrangler.jsonc b/packages/create-cloudflare/templates/queues/js/wrangler.jsonc
index d58eba397a9d..6e271afab006 100644
--- a/packages/create-cloudflare/templates/queues/js/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/queues/js/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.js",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   },
diff --git a/packages/create-cloudflare/templates/queues/ts/wrangler.jsonc b/packages/create-cloudflare/templates/queues/ts/wrangler.jsonc
index 04e682d14c83..fe1883b89fc1 100644
--- a/packages/create-cloudflare/templates/queues/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/queues/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   },
diff --git a/packages/create-cloudflare/templates/remix/templates/wrangler.jsonc b/packages/create-cloudflare/templates/remix/templates/wrangler.jsonc
index 5f45f8a36842..beb1b440faf6 100644
--- a/packages/create-cloudflare/templates/remix/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/remix/templates/wrangler.jsonc
@@ -1,5 +1,6 @@
 {
   "name": "<TBD>",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "pages_build_output_dir": "./build/client"
 }
diff --git a/packages/create-cloudflare/templates/scheduled/js/wrangler.jsonc b/packages/create-cloudflare/templates/scheduled/js/wrangler.jsonc
index 246b0a6e9ad6..d715b6e2e086 100644
--- a/packages/create-cloudflare/templates/scheduled/js/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/scheduled/js/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.js",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   },
diff --git a/packages/create-cloudflare/templates/scheduled/ts/wrangler.jsonc b/packages/create-cloudflare/templates/scheduled/ts/wrangler.jsonc
index f551a128e046..a128ffb74070 100644
--- a/packages/create-cloudflare/templates/scheduled/ts/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/scheduled/ts/wrangler.jsonc
@@ -2,6 +2,7 @@
   "name": "<TBD>",
   "main": "src/index.ts",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "observability": {
     "enabled": true
   },
diff --git a/packages/create-cloudflare/templates/svelte/templates/wrangler.jsonc b/packages/create-cloudflare/templates/svelte/templates/wrangler.jsonc
index 08aa7f1a27a1..66dfbef49259 100644
--- a/packages/create-cloudflare/templates/svelte/templates/wrangler.jsonc
+++ b/packages/create-cloudflare/templates/svelte/templates/wrangler.jsonc
@@ -1,5 +1,6 @@
 {
   "name": "<TBD>",
   "compatibility_date": "<TBD>",
+  "compatibility_flags": ["nodejs_compat"],
   "pages_build_output_dir": ".svelte-kit/cloudflare"
 }