diff --git a/.changeset/young-doors-think.md b/.changeset/young-doors-think.md
new file mode 100644
index 000000000000..ec3bb130a485
--- /dev/null
+++ b/.changeset/young-doors-think.md
@@ -0,0 +1,5 @@
+---
+"wrangler": minor
+---
+
+feat: implements the `--experimental-dev-env` (shorthand: `--x-dev-env`) flag for `wrangler pages dev`
diff --git a/packages/wrangler/e2e/__snapshots__/pages-dev.test.ts.snap b/packages/wrangler/e2e/__snapshots__/pages-dev.test.ts.snap
new file mode 100644
index 000000000000..0d5afdc7a27d
--- /dev/null
+++ b/packages/wrangler/e2e/__snapshots__/pages-dev.test.ts.snap
@@ -0,0 +1,80 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`Pages 'wrangler pages dev --x-dev-env' > should merge (with override) \`wrangler.toml\` configuration with configuration provided via the command line, with command line args taking precedence 1`] = `
+"✨ Compiled Worker successfully
+▲ [WARNING] WARNING: You have Durable Object bindings that are not defined locally in the worker being developed.
+  Be aware that changes to the data stored in these Durable Objects will be permanent and affect the live instances.
+  Remote Durable Objects that are affected:
+  - {"name":"DO_BINDING_1_TOML","class_name":"DO_1_TOML","script_name":"DO_SCRIPT_1_TOML"}
+  - {"name":"DO_BINDING_2_TOML","class_name":"DO_2_TOML","script_name":"DO_SCRIPT_2_TOML"}
+Your worker has access to the following bindings:
+- Durable Objects:
+  - DO_BINDING_1_TOML: NEW_DO_1 (defined in NEW_DO_SCRIPT_1)
+  - DO_BINDING_2_TOML: DO_2_TOML (defined in DO_SCRIPT_2_TOML)
+  - DO_BINDING_3_ARGS: DO_3_ARGS (defined in DO_SCRIPT_3_ARGS)
+- KV Namespaces:
+  - KV_BINDING_1_TOML: NEW_KV_ID_1
+  - KV_BINDING_2_TOML: KV_ID_2_TOML
+  - KV_BINDING_3_ARGS: KV_ID_3_ARGS
+- D1 Databases:
+  - D1_BINDING_1_TOML: local-D1_BINDING_1_TOML=NEW_D1_NAME_1 (NEW_D1_NAME_1)
+  - D1_BINDING_2_TOML: D1_NAME_2_TOML (D1_ID_2_TOML)
+  - D1_BINDING_3_ARGS: local-D1_BINDING_3_ARGS=D1_NAME_3_ARGS (D1_NAME_3_ARGS)
+- R2 Buckets:
+  - R2_BINDING_1_TOML: NEW_R2_BUCKET_1
+  - R2_BINDING_2_TOML: R2_BUCKET_2_TOML
+  - R2_BINDING_3_TOML: R2_BUCKET_3_ARGS
+- Services:
+  - SERVICE_BINDING_1_TOML: NEW_SERVICE_NAME_1
+  - SERVICE_BINDING_2_TOML: SERVICE_NAME_2_TOML
+  - SERVICE_BINDING_3_TOML: SERVICE_NAME_3_ARGS
+- AI:
+  - Name: AI_BINDING_2_TOML
+- Vars:
+  - VAR1: "(hidden)"
+  - VAR2: "VAR_2_TOML"
+  - VAR3: "(hidden)"
+▲ [WARNING] This worker is bound to live services: SERVICE_BINDING_1_TOML (NEW_SERVICE_NAME_1), SERVICE_BINDING_3_TOML (SERVICE_NAME_3_ARGS), SERVICE_BINDING_2_TOML (SERVICE_NAME_2_TOML)
+▲ [WARNING] Using Workers AI always accesses your Cloudflare account in order to run AI models, and so will incur usage charges even in local development.
+"
+`;
+
+exports[`Pages 'wrangler pages dev' > should merge (with override) \`wrangler.toml\` configuration with configuration provided via the command line, with command line args taking precedence 1`] = `
+"✨ Compiled Worker successfully
+▲ [WARNING] WARNING: You have Durable Object bindings that are not defined locally in the worker being developed.
+  Be aware that changes to the data stored in these Durable Objects will be permanent and affect the live instances.
+  Remote Durable Objects that are affected:
+  - {"name":"DO_BINDING_1_TOML","class_name":"DO_1_TOML","script_name":"DO_SCRIPT_1_TOML"}
+  - {"name":"DO_BINDING_2_TOML","class_name":"DO_2_TOML","script_name":"DO_SCRIPT_2_TOML"}
+▲ [WARNING] This worker is bound to live services: SERVICE_BINDING_1_TOML (SERVICE_NAME_1_TOML), SERVICE_BINDING_2_TOML (SERVICE_NAME_2_TOML)
+Your worker has access to the following bindings:
+- Durable Objects:
+  - DO_BINDING_1_TOML: NEW_DO_1 (defined in NEW_DO_SCRIPT_1)
+  - DO_BINDING_2_TOML: DO_2_TOML (defined in DO_SCRIPT_2_TOML)
+  - DO_BINDING_3_ARGS: DO_3_ARGS (defined in DO_SCRIPT_3_ARGS)
+- KV Namespaces:
+  - KV_BINDING_1_TOML: NEW_KV_ID_1
+  - KV_BINDING_2_TOML: KV_ID_2_TOML
+  - KV_BINDING_3_ARGS: KV_ID_3_ARGS
+- D1 Databases:
+  - D1_BINDING_1_TOML: local-D1_BINDING_1_TOML=NEW_D1_NAME_1 (NEW_D1_NAME_1)
+  - D1_BINDING_2_TOML: D1_NAME_2_TOML (D1_ID_2_TOML)
+  - D1_BINDING_3_ARGS: local-D1_BINDING_3_ARGS=D1_NAME_3_ARGS (D1_NAME_3_ARGS)
+- R2 Buckets:
+  - R2_BINDING_1_TOML: NEW_R2_BUCKET_1
+  - R2_BINDING_2_TOML: R2_BUCKET_2_TOML
+  - R2_BINDING_3_TOML: R2_BUCKET_3_ARGS
+- Services:
+  - SERVICE_BINDING_1_TOML: NEW_SERVICE_NAME_1
+  - SERVICE_BINDING_2_TOML: SERVICE_NAME_2_TOML
+  - SERVICE_BINDING_3_TOML: SERVICE_NAME_3_ARGS
+- AI:
+  - Name: AI_BINDING_2_TOML
+- Vars:
+  - VAR1: "(hidden)"
+  - VAR2: "VAR_2_TOML"
+  - VAR3: "(hidden)"
+▲ [WARNING] ⎔ Support for service bindings in local mode is experimental and may change.
+▲ [WARNING] ⎔ Support for external Durable Objects in local mode is experimental and may change.
+"
+`;
diff --git a/packages/wrangler/e2e/pages-dev.test.ts b/packages/wrangler/e2e/pages-dev.test.ts
index caea65fa4cb9..e4bc859263d5 100644
--- a/packages/wrangler/e2e/pages-dev.test.ts
+++ b/packages/wrangler/e2e/pages-dev.test.ts
@@ -7,7 +7,10 @@ import { WranglerE2ETestHelper } from "./helpers/e2e-wrangler-test";
 import { fetchText } from "./helpers/fetch-text";
 import { normalizeOutput } from "./helpers/normalize";
 
-describe("pages dev", () => {
+describe.each([
+	{ cmd: "wrangler pages dev" },
+	{ cmd: "wrangler pages dev --x-dev-env" },
+])("Pages $cmd", ({ cmd }) => {
 	it("should warn if no [--compatibility_date] command line arg was specified", async () => {
 		const helper = new WranglerE2ETestHelper();
 		await helper.seed({
@@ -19,7 +22,7 @@ describe("pages dev", () => {
 					}`,
 		});
 		const port = await getPort();
-		const worker = helper.runLongLived(`wrangler pages dev --port ${port} .`);
+		const worker = helper.runLongLived(`${cmd} --port ${port} .`);
 		const { url } = await worker.waitForReady();
 
 		const currentDate = new Date().toISOString().substring(0, 10);
@@ -38,14 +41,14 @@ describe("pages dev", () => {
 		);
 
 		const text = await fetchText(url);
-		expect(text).toMatchInlineSnapshot('"Testing [--compatibility_date]"');
+		expect(text).toBe("Testing [--compatibility_date]");
 	});
 
 	it("should warn that [--experimental-local] is no longer required, if specified", async () => {
 		const helper = new WranglerE2ETestHelper();
 		const port = await getPort();
 		const worker = helper.runLongLived(
-			`wrangler pages dev --port ${port} . --experimental-local`
+			`${cmd} --port ${port} . --experimental-local`
 		);
 		await helper.seed({
 			"_worker.js": dedent`
@@ -57,7 +60,7 @@ describe("pages dev", () => {
 		});
 		const { url } = await worker.waitForReady();
 		const text = await fetchText(url);
-		expect(text).toMatchInlineSnapshot(`"Testing [--experimental-local]"`);
+		expect(text).toBe("Testing [--experimental-local]");
 		expect(await worker.currentOutput).toContain(
 			`--experimental-local is no longer required and will be removed in a future version`
 		);
@@ -67,22 +70,19 @@ describe("pages dev", () => {
 		const helper = new WranglerE2ETestHelper();
 		const port = await getPort();
 		const worker = helper.runLongLived(
-			`wrangler pages dev --port ${port} . --service STAGING_SERVICE=test-worker@staging`
+			`${cmd} --port ${port} . --service STAGING_SERVICE=test-worker@staging`
 		);
 
 		await worker.readUntil(
 			/Support for service binding environments is experimental/
 		);
-		await worker.readUntil(
-			/Support for service bindings in local mode is experimental and may change/
-		);
 	});
 
 	it("should warn if bindings specified as args in the command line are invalid", async () => {
 		const helper = new WranglerE2ETestHelper();
 		const port = await getPort();
 		const worker = helper.runLongLived(
-			`wrangler pages dev . --port ${port} --service test --kv = --do test --d1 = --r2 =`
+			`${cmd} . --port ${port} --service test --kv = --do test --d1 = --r2 =`
 		);
 		await worker.waitForReady();
 		expect(await worker.currentOutput).toContain(
@@ -114,7 +114,7 @@ describe("pages dev", () => {
 		});
 		const port = await getPort();
 		const worker = helper.runLongLived(
-			`wrangler pages dev . --port ${port} --service TEST_SERVICE=test-worker --kv TEST_KV --do TEST_DO=TestDurableObject@a --d1 TEST_D1 --r2 TEST_R2`
+			`${cmd} . --port ${port} --service TEST_SERVICE=test-worker --kv TEST_KV --do TEST_DO=TestDurableObject@a --d1 TEST_D1 --r2 TEST_R2`
 		);
 		await worker.waitForReady();
 		expect(normalizeOutput(worker.currentOutput).replace(/\s/g, "")).toContain(
@@ -150,16 +150,16 @@ describe("pages dev", () => {
 				`,
 		});
 		const port = await getPort();
-		const worker = helper.runLongLived(`wrangler pages dev --port ${port}`);
+		const worker = helper.runLongLived(`${cmd} --port ${port}`);
 		const { url } = await worker.waitForReady();
 
 		const text = await fetchText(url);
-		expect(text).toMatchInlineSnapshot('"Pages supports wrangler.toml ⚡️⚡️"');
+		expect(text).toBe("Pages supports wrangler.toml ⚡️⚡️");
 	});
 
 	it("should recover from syntax error during dev session (_worker)", async () => {
 		const helper = new WranglerE2ETestHelper();
-		const worker = helper.runLongLived("wrangler pages dev .");
+		const worker = helper.runLongLived(`${cmd} .`);
 
 		await helper.seed({
 			"_worker.js": dedent`
@@ -172,9 +172,9 @@ describe("pages dev", () => {
 
 		const { url } = await worker.waitForReady();
 
-		await expect(
-			fetch(url).then((r) => r.text())
-		).resolves.toMatchInlineSnapshot('"Hello World!"');
+		await expect(fetch(url).then((r) => r.text())).resolves.toBe(
+			"Hello World!"
+		);
 
 		await helper.seed({
 			"_worker.js": dedent`
@@ -201,15 +201,15 @@ describe("pages dev", () => {
 		});
 		await worker.waitForReload();
 
-		await expect(
-			fetch(url).then((r) => r.text())
-		).resolves.toMatchInlineSnapshot('"Updated Worker!"');
+		await expect(fetch(url).then((r) => r.text())).resolves.toBe(
+			"Updated Worker!"
+		);
 	});
 
 	it("should recover from syntax error during dev session (Functions)", async () => {
 		const helper = new WranglerE2ETestHelper();
 		const port = await getPort();
-		const worker = helper.runLongLived(`wrangler pages dev --port ${port} .`);
+		const worker = helper.runLongLived(`${cmd} --port ${port} .`);
 
 		await helper.seed({
 			"functions/_middleware.js": dedent`
@@ -220,9 +220,9 @@ describe("pages dev", () => {
 
 		const { url } = await worker.waitForReady();
 
-		await expect(
-			fetch(url).then((r) => r.text())
-		).resolves.toMatchInlineSnapshot('"Hello World!"');
+		await expect(fetch(url).then((r) => r.text())).resolves.toBe(
+			"Hello World!"
+		);
 
 		await helper.seed({
 			"functions/_middleware.js": dedent`
@@ -245,9 +245,9 @@ describe("pages dev", () => {
 		});
 		await worker.waitForReload();
 
-		await expect(
-			fetch(url).then((r) => r.text())
-		).resolves.toMatchInlineSnapshot('"Updated Worker!"');
+		await expect(fetch(url).then((r) => r.text())).resolves.toBe(
+			"Updated Worker!"
+		);
 	});
 
 	it("should validate _routes.json during dev session, and fallback to default value", async () => {
@@ -266,13 +266,13 @@ describe("pages dev", () => {
 				`,
 		});
 		const port = await getPort();
-		const worker = helper.runLongLived(`wrangler pages dev --port ${port} .`);
+		const worker = helper.runLongLived(`${cmd} --port ${port} .`);
 
 		const { url } = await worker.waitForReady();
 
 		const foo = await fetchText(`${url}/foo`);
 
-		expect(foo).toMatchInlineSnapshot('"FOO"');
+		expect(foo).toBe("FOO");
 
 		// invalid _routes.json because include rule does not start with `/`
 		await helper.seed({
@@ -292,7 +292,7 @@ describe("pages dev", () => {
 	it("should use top-level configuration specified in `wrangler.toml`", async () => {
 		const helper = new WranglerE2ETestHelper();
 		const port = await getPort();
-		const worker = helper.runLongLived(`wrangler pages dev --port ${port}`);
+		const worker = helper.runLongLived(`${cmd} --port ${port}`);
 		await helper.seed({
 			"public/_worker.js": dedent`
 						export default {
@@ -319,9 +319,7 @@ describe("pages dev", () => {
 
 		const text = await fetchText(url);
 
-		expect(text).toMatchInlineSnapshot(
-			'"⚡️ Pages ⚡️ supports wrangler.toml"'
-		);
+		expect(text).toBe("⚡️ Pages ⚡️ supports wrangler.toml");
 		expect(normalizeOutput(worker.currentOutput).replace(/\s/g, "")).toContain(
 			`
 					Your worker has access to the following bindings:
@@ -347,7 +345,7 @@ describe("pages dev", () => {
 			` --ai AI_BINDING_2_TOML`,
 			` --port ${port}`,
 		];
-		const worker = helper.runLongLived(`wrangler pages dev ${flags.join("")}`);
+		const worker = helper.runLongLived(`${cmd} ${flags.join("")}`);
 		await helper.seed({
 			"public/_worker.js": dedent`
 					export default {
@@ -430,45 +428,7 @@ describe("pages dev", () => {
 			"⎔ Starting local server..."
 		);
 
-		expect(prestartOutput).toMatchInlineSnapshot(`
-				"✨ Compiled Worker successfully
-				▲ [WARNING] WARNING: You have Durable Object bindings that are not defined locally in the worker being developed.
-				  Be aware that changes to the data stored in these Durable Objects will be permanent and affect the live instances.
-				  Remote Durable Objects that are affected:
-				  - {"name":"DO_BINDING_1_TOML","class_name":"DO_1_TOML","script_name":"DO_SCRIPT_1_TOML"}
-				  - {"name":"DO_BINDING_2_TOML","class_name":"DO_2_TOML","script_name":"DO_SCRIPT_2_TOML"}
-				▲ [WARNING] This worker is bound to live services: SERVICE_BINDING_1_TOML (SERVICE_NAME_1_TOML), SERVICE_BINDING_2_TOML (SERVICE_NAME_2_TOML)
-				Your worker has access to the following bindings:
-				- Durable Objects:
-				  - DO_BINDING_1_TOML: NEW_DO_1 (defined in NEW_DO_SCRIPT_1)
-				  - DO_BINDING_2_TOML: DO_2_TOML (defined in DO_SCRIPT_2_TOML)
-				  - DO_BINDING_3_ARGS: DO_3_ARGS (defined in DO_SCRIPT_3_ARGS)
-				- KV Namespaces:
-				  - KV_BINDING_1_TOML: NEW_KV_ID_1
-				  - KV_BINDING_2_TOML: KV_ID_2_TOML
-				  - KV_BINDING_3_ARGS: KV_ID_3_ARGS
-				- D1 Databases:
-				  - D1_BINDING_1_TOML: local-D1_BINDING_1_TOML=NEW_D1_NAME_1 (NEW_D1_NAME_1)
-				  - D1_BINDING_2_TOML: D1_NAME_2_TOML (D1_ID_2_TOML)
-				  - D1_BINDING_3_ARGS: local-D1_BINDING_3_ARGS=D1_NAME_3_ARGS (D1_NAME_3_ARGS)
-				- R2 Buckets:
-				  - R2_BINDING_1_TOML: NEW_R2_BUCKET_1
-				  - R2_BINDING_2_TOML: R2_BUCKET_2_TOML
-				  - R2_BINDING_3_TOML: R2_BUCKET_3_ARGS
-				- Services:
-				  - SERVICE_BINDING_1_TOML: NEW_SERVICE_NAME_1
-				  - SERVICE_BINDING_2_TOML: SERVICE_NAME_2_TOML
-				  - SERVICE_BINDING_3_TOML: SERVICE_NAME_3_ARGS
-				- AI:
-				  - Name: AI_BINDING_2_TOML
-				- Vars:
-				  - VAR1: "(hidden)"
-				  - VAR2: "VAR_2_TOML"
-				  - VAR3: "(hidden)"
-				▲ [WARNING] ⎔ Support for service bindings in local mode is experimental and may change.
-				▲ [WARNING] ⎔ Support for external Durable Objects in local mode is experimental and may change.
-				"
-			`);
+		expect(prestartOutput).toMatchSnapshot();
 	});
 
 	it("should pick up wrangler.toml configuration even in cases when `pages_build_output_dir` was not specified, but the <directory> command argument was", async () => {
@@ -491,13 +451,10 @@ describe("pages dev", () => {
 		});
 
 		const port = await getPort();
-		const worker = helper.runLongLived(
-			`wrangler pages dev --port ${port} public`
-		);
+		const worker = helper.runLongLived(`${cmd} --port ${port} public`);
 		const { url } = await worker.waitForReady();
-
-		await expect(fetchText(url)).resolves.toMatchInlineSnapshot(
-			`"⚡️ Pages supports wrangler.toml ⚡️"`
+		await expect(fetchText(url)).resolves.toBe(
+			"⚡️ Pages supports wrangler.toml ⚡️"
 		);
 	});
 
@@ -517,7 +474,7 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let text = await fetchText(url);
-			expect(text).toMatchInlineSnapshot('"Hello World!"');
+			expect(text).toBe("Hello World!");
 
 			await helper.seed({
 				"functions/_middleware.js": dedent`
@@ -529,7 +486,7 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			text = await fetchText(url);
-			expect(text).toMatchInlineSnapshot('"Updated Worker!"');
+			expect(text).toBe("Updated Worker!");
 		});
 
 		it("should support modifying dependencies during dev session (Functions)", async () => {
@@ -557,10 +514,10 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let hello = await fetchText(`${url}/greetings/hello`);
-			expect(hello).toMatchInlineSnapshot('"Hello World!"');
+			expect(hello).toBe("Hello World!");
 
 			let hi = await fetchText(`${url}/hi`);
-			expect(hi).toMatchInlineSnapshot('"Hi there!"');
+			expect(hi).toBe("Hi there!");
 
 			await helper.seed({
 				"utils/greetings.js": dedent`
@@ -572,10 +529,10 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			hello = await fetchText(`${url}/greetings/hello`);
-			expect(hello).toMatchInlineSnapshot('"Hey World!"');
+			expect(hello).toBe("Hey World!");
 
 			hi = await fetchText(`${url}/hi`);
-			expect(hi).toMatchInlineSnapshot('"Hey there!"');
+			expect(hi).toBe("Hey there!");
 		});
 
 		it("should support modifying external modules during dev session (Functions)", async () => {
@@ -597,7 +554,7 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let hello = await fetchText(`${url}/hello`);
-			expect(hello).toMatchInlineSnapshot('"<h1>Hello HTML World!</h1>"');
+			expect(hello).toBe("<h1>Hello HTML World!</h1>");
 
 			await helper.seed({
 				"modules/my-html.html": dedent`
@@ -608,7 +565,7 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			hello = await fetchText(`${url}/hello`);
-			expect(hello).toMatchInlineSnapshot('"<h1>Updated HTML!</h1>"');
+			expect(hello).toBe("<h1>Updated HTML!</h1>");
 		});
 
 		it("should modify worker during dev session (_worker)", async () => {
@@ -628,7 +585,7 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let hello = await fetchText(url);
-			expect(hello).toMatchInlineSnapshot('"Hello World!"');
+			expect(hello).toBe("Hello World!");
 
 			await helper.seed({
 				"_worker.js": dedent`
@@ -642,7 +599,7 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			hello = await fetchText(url);
-			expect(hello).toMatchInlineSnapshot('"Updated Worker!"');
+			expect(hello).toBe("Updated Worker!");
 		});
 
 		it("should support modifying dependencies during dev session (_worker)", async () => {
@@ -666,7 +623,7 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let bear = await fetchText(url);
-			expect(bear).toMatchInlineSnapshot('"BEAR!"');
+			expect(bear).toBe("BEAR!");
 
 			await helper.seed({
 				"pets/bear.js": dedent`
@@ -677,7 +634,7 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			bear = await fetchText(url);
-			expect(bear).toMatchInlineSnapshot('"We love BEAR!"');
+			expect(bear).toBe("We love BEAR!");
 		});
 
 		it("should support modifying external modules during dev session (_worker)", async () => {
@@ -701,7 +658,7 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			let graham = await fetchText(url);
-			expect(graham).toMatchInlineSnapshot('"<h1>Graham the dog</h1>"');
+			expect(graham).toBe("<h1>Graham the dog</h1>");
 
 			await helper.seed({
 				"graham.html": dedent`
@@ -712,9 +669,7 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			graham = await fetchText(url);
-			expect(graham).toMatchInlineSnapshot(
-				'"<h1>Graham is the bestest doggo</h1>"'
-			);
+			expect(graham).toBe("<h1>Graham is the bestest doggo</h1>");
 		});
 
 		it("should support modifying _routes.json during dev session", async () => {
@@ -750,10 +705,10 @@ describe("pages dev", () => {
 			const { url } = await worker.waitForReady();
 
 			const foo = await fetchText(`${url}/foo`);
-			expect(foo).toMatchInlineSnapshot('"foo"');
+			expect(foo).toBe("foo");
 
 			const bar = await fetchText(`${url}/bar`);
-			expect(bar).toMatchInlineSnapshot('"bar"');
+			expect(bar).toBe("bar");
 
 			await helper.seed({
 				"_routes.json": dedent`
@@ -767,10 +722,10 @@ describe("pages dev", () => {
 			await worker.waitForReload();
 
 			const foo2 = await fetchText(`${url}/foo`);
-			expect(foo2).toMatchInlineSnapshot('"foo"');
+			expect(foo2).toBe("foo");
 
 			const bar2 = await fetchText(`${url}/bar`);
-			expect(bar2).toMatchInlineSnapshot('"hello world"');
+			expect(bar2).toBe("hello world");
 		});
 	});
 });
diff --git a/packages/wrangler/src/__tests__/pages/pages.test.ts b/packages/wrangler/src/__tests__/pages/pages.test.ts
index a9187c3f0108..913b4d354fa6 100644
--- a/packages/wrangler/src/__tests__/pages/pages.test.ts
+++ b/packages/wrangler/src/__tests__/pages/pages.test.ts
@@ -77,6 +77,7 @@ describe("pages", () => {
 			      --persist-to                                 Specify directory to use for local persistence (defaults to .wrangler/state)  [string]
 			      --log-level                                  Specify logging level  [choices: \\"debug\\", \\"info\\", \\"log\\", \\"warn\\", \\"error\\", \\"none\\"]
 			      --show-interactive-dev-session               Show interactive dev session (defaults to true if the terminal supports interactivity)  [boolean]
+			      --experimental-dev-env, --x-dev-env          Use the experimental DevEnv instantiation (unified across wrangler dev and unstable_dev)  [boolean] [default: false]
 			      --experimental-registry, --x-registry        Use the experimental file based dev registry for multi-worker development  [boolean] [default: false]"
 		`);
 	});
diff --git a/packages/wrangler/src/dev.tsx b/packages/wrangler/src/dev.tsx
index a405ba0af7dc..6cc9b4cbd11e 100644
--- a/packages/wrangler/src/dev.tsx
+++ b/packages/wrangler/src/dev.tsx
@@ -519,6 +519,32 @@ async function updateDevEnvRegistry(
 	});
 }
 
+async function getPagesAssetsFetcher(
+	options: EnablePagesAssetsServiceBindingOptions | undefined
+): Promise<StartDevWorkerInput["bindings"] | undefined> {
+	if (options !== undefined) {
+		// `./miniflare-cli/assets` dynamically imports`@cloudflare/pages-shared/environment-polyfills`.
+		// `@cloudflare/pages-shared/environment-polyfills/types.ts` defines `global`
+		// augmentations that pollute the `import`-site's typing environment.
+		//
+		// We `require` instead of `import`ing here to avoid polluting the main
+		// `wrangler` TypeScript project with the `global` augmentations. This
+		// relies on the fact that `require` is untyped.
+		//
+		// eslint-disable-next-line @typescript-eslint/no-var-requires
+		const generateASSETSBinding = require("./miniflare-cli/assets").default;
+		return {
+			ASSETS: {
+				type: "fetcher",
+				fetcher: await generateASSETSBinding({
+					log: logger,
+					...options,
+				}),
+			},
+		};
+	}
+}
+
 export async function startDev(args: StartDevOptions) {
 	let watcher: ReturnType<typeof watch> | undefined;
 	let rerender: (node: React.ReactNode) => void | undefined;
@@ -655,6 +681,9 @@ export async function startDev(args: StartDevOptions) {
 						}),
 				},
 				bindings: {
+					...(await getPagesAssetsFetcher(
+						args.enablePagesAssetsServiceBinding
+					)),
 					...collectPlainTextVars(args.var),
 					...convertCfWorkerInitBindingstoBindings({
 						kv_namespaces: args.kv,
diff --git a/packages/wrangler/src/pages/dev.ts b/packages/wrangler/src/pages/dev.ts
index 174640de06c8..b5a2e9c106a8 100644
--- a/packages/wrangler/src/pages/dev.ts
+++ b/packages/wrangler/src/pages/dev.ts
@@ -237,6 +237,13 @@ export function Options(yargs: CommonYargsArgv) {
 					"Show interactive dev session (defaults to true if the terminal supports interactivity)",
 				type: "boolean",
 			},
+			"experimental-dev-env": {
+				alias: ["x-dev-env"],
+				type: "boolean",
+				describe:
+					"Use the experimental DevEnv instantiation (unified across wrangler dev and unstable_dev)",
+				default: false,
+			},
 			"experimental-registry": {
 				alias: ["x-registry"],
 				type: "boolean",
@@ -899,6 +906,7 @@ export const Handler = async (args: PagesDevArguments) => {
 			testMode: false,
 			watch: true,
 			fileBasedRegistry: args.experimentalRegistry,
+			devEnv: args.experimentalDevEnv,
 		},
 	});
 	await metrics.sendMetricsEvent("run pages dev");