diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 250a275704..7b97490f53 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -37,11 +37,6 @@ unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tokio_unstable)'] }
 name = "deno_runtime"
 path = "lib.rs"
 
-[[example]]
-name = "extension"
-path = "examples/extension/main.rs"
-required-features = ["transpile"]
-
 [dependencies]
 deno_ast = { workspace = true, optional = true }
 deno_broadcast_channel.workspace = true
diff --git a/runtime/examples/extension/bootstrap.js b/runtime/examples/extension/bootstrap.js
deleted file mode 100644
index 78e0cb999f..0000000000
--- a/runtime/examples/extension/bootstrap.js
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2018-2025 the Deno authors. MIT license.
-import { op_hello } from "ext:core/ops";
-function hello() {
-  op_hello("world");
-}
-
-globalThis.Extension = { hello };
diff --git a/runtime/examples/extension/main.js b/runtime/examples/extension/main.js
deleted file mode 100644
index 4a66aecf58..0000000000
--- a/runtime/examples/extension/main.js
+++ /dev/null
@@ -1,4 +0,0 @@
-// Copyright 2018-2025 the Deno authors. MIT license.
-console.log("Hello world from JS!");
-console.log(Deno.build);
-Extension.hello();
diff --git a/runtime/examples/extension/main.rs b/runtime/examples/extension/main.rs
deleted file mode 100644
index 6847bccd20..0000000000
--- a/runtime/examples/extension/main.rs
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2018-2025 the Deno authors. MIT license.
-
-#![allow(clippy::print_stdout)]
-#![allow(clippy::print_stderr)]
-
-use std::path::Path;
-use std::rc::Rc;
-use std::sync::Arc;
-
-use deno_core::FsModuleLoader;
-use deno_core::ModuleSpecifier;
-use deno_core::error::AnyError;
-use deno_core::op2;
-use deno_fs::RealFs;
-use deno_resolver::npm::DenoInNpmPackageChecker;
-use deno_resolver::npm::NpmResolver;
-use deno_runtime::deno_permissions::PermissionsContainer;
-use deno_runtime::permissions::RuntimePermissionDescriptorParser;
-use deno_runtime::worker::MainWorker;
-use deno_runtime::worker::WorkerOptions;
-use deno_runtime::worker::WorkerServiceOptions;
-
-#[op2(fast)]
-fn op_hello(#[string] text: &str) {
-  println!("Hello {} from an op!", text);
-}
-
-deno_core::extension!(
-  hello_runtime,
-  ops = [op_hello],
-  esm_entry_point = "ext:hello_runtime/bootstrap.js",
-  esm = [dir "examples/extension", "bootstrap.js"]
-);
-
-#[tokio::main]
-async fn main() -> Result<(), AnyError> {
-  let js_path =
-    Path::new(env!("CARGO_MANIFEST_DIR")).join("examples/extension/main.js");
-  let main_module = ModuleSpecifier::from_file_path(js_path).unwrap();
-  eprintln!("Running {main_module}...");
-  let fs = Arc::new(RealFs);
-  let permission_desc_parser = Arc::new(
-    RuntimePermissionDescriptorParser::new(sys_traits::impls::RealSys),
-  );
-  let mut worker = MainWorker::bootstrap_from_options(
-    &main_module,
-    WorkerServiceOptions::<
-      DenoInNpmPackageChecker,
-      NpmResolver<sys_traits::impls::RealSys>,
-      sys_traits::impls::RealSys,
-    > {
-      deno_rt_native_addon_loader: None,
-      module_loader: Rc::new(FsModuleLoader),
-      permissions: PermissionsContainer::allow_all(permission_desc_parser),
-      blob_store: Default::default(),
-      broadcast_channel: Default::default(),
-      feature_checker: Default::default(),
-      node_services: Default::default(),
-      npm_process_state_provider: Default::default(),
-      root_cert_store_provider: Default::default(),
-      fetch_dns_resolver: Default::default(),
-      shared_array_buffer_store: Default::default(),
-      compiled_wasm_module_store: Default::default(),
-      v8_code_cache: Default::default(),
-      fs,
-    },
-    WorkerOptions {
-      extensions: vec![hello_runtime::init()],
-      ..Default::default()
-    },
-  );
-  worker.execute_main_module(&main_module).await?;
-  worker.run_event_loop(false).await?;
-  Ok(())
-}