diff --git a/lib/javascript/JavascriptModulesPlugin.js b/lib/javascript/JavascriptModulesPlugin.js
index 4249a2f5105..218f138cb27 100644
--- a/lib/javascript/JavascriptModulesPlugin.js
+++ b/lib/javascript/JavascriptModulesPlugin.js
@@ -5,6 +5,7 @@
 
 "use strict";
 
+const eslintScope = require("eslint-scope");
 const { SyncWaterfallHook, SyncHook, SyncBailHook } = require("tapable");
 const vm = require("vm");
 const {
@@ -12,7 +13,8 @@ const {
 	OriginalSource,
 	PrefixSource,
 	RawSource,
-	CachedSource
+	CachedSource,
+	ReplaceSource
 } = require("webpack-sources");
 const Compilation = require("../Compilation");
 const { tryRunOrWebpackError } = require("../HookWebpackError");
@@ -30,11 +32,13 @@ const { last, someInIterable } = require("../util/IterableHelpers");
 const StringXor = require("../util/StringXor");
 const { compareModulesByIdentifier } = require("../util/comparators");
 const createHash = require("../util/createHash");
+const { getPathInAst, getAllReferences } = require("../util/mergeScope");
 const nonNumericOnlyHash = require("../util/nonNumericOnlyHash");
 const { intersectRuntime } = require("../util/runtime");
 const JavascriptGenerator = require("./JavascriptGenerator");
 const JavascriptParser = require("./JavascriptParser");
 
+/** @typedef {import("eslint-scope").Variable} Variable */
 /** @typedef {import("webpack-sources").Source} Source */
 /** @typedef {import("../Chunk")} Chunk */
 /** @typedef {import("../ChunkGraph")} ChunkGraph */
@@ -818,13 +822,19 @@ class JavascriptModulesPlugin {
 			const lastInlinedModule = last(inlinedModules);
 			const startupSource = new ConcatSource();
 			startupSource.add(`var ${RuntimeGlobals.exports} = {};\n`);
+			const renamedInlinedModules = this.renamedRootModule(
+				allModules,
+				renderContext,
+				inlinedModules,
+				chunkRenderContext,
+				hooks
+			);
+
 			for (const m of inlinedModules) {
-				const renderedModule = this.renderModule(
-					m,
-					chunkRenderContext,
-					hooks,
-					false
-				);
+				const renderedModule =
+					renamedInlinedModules.get(m) ||
+					this.renderModule(m, chunkRenderContext, hooks, false);
+
 				if (renderedModule) {
 					const innerStrict = !allStrict && m.buildInfo.strict;
 					const runtimeRequirements = chunkGraph.getModuleRuntimeRequirements(
@@ -840,11 +850,9 @@ class JavascriptModulesPlugin {
 							? // TODO check globals and top-level declarations of other entries and chunk modules
 								// to make a better decision
 								"it need to be isolated against other entry modules."
-							: chunkModules
-								? "it need to be isolated against other modules in the chunk."
-								: exports && !webpackExports
-									? `it uses a non-standard name for the exports (${m.exportsArgument}).`
-									: hooks.embedInRuntimeBailout.call(m, renderContext);
+							: exports && !webpackExports
+								? `it uses a non-standard name for the exports (${m.exportsArgument}).`
+								: hooks.embedInRuntimeBailout.call(m, renderContext);
 					let footer;
 					if (iife !== undefined) {
 						startupSource.add(
@@ -1383,6 +1391,146 @@ class JavascriptModulesPlugin {
 			"JavascriptModulesPlugin.getCompilationHooks().renderRequire"
 		);
 	}
+
+	/**
+	 * @param {Module[]} allModules allModules
+	 * @param {MainRenderContext} renderContext renderContext
+	 * @param {Set<Module>} inlinedModules inlinedModules
+	 * @param {ChunkRenderContext} chunkRenderContext chunkRenderContext
+	 * @param {CompilationHooks} hooks hooks
+	 * @returns {Map<Module, Source>} renamed inlined modules
+	 */
+	renamedRootModule(
+		allModules,
+		renderContext,
+		inlinedModules,
+		chunkRenderContext,
+		hooks
+	) {
+		const { runtimeTemplate } = renderContext;
+
+		/** @type {Map<Module, { source: Source, ast: any, variables: Set<Variable> }>} */
+		const inlinedModulesToInfo = new Map();
+		/** @type {Set<string>} */
+		const nonInlinedModuleThroughIdentifiers = new Set();
+		/** @type {Map<Module, Source>} */
+		const renamedInlinedModules = new Map();
+		/** @type {Set<{ m: Module, variable: Variable}>} */
+		const usedIdentifiers = new Set();
+
+		for (const m of allModules) {
+			const isInlinedModule = inlinedModules && inlinedModules.has(m);
+			const moduleSource = this.renderModule(
+				m,
+				chunkRenderContext,
+				hooks,
+				isInlinedModule ? false : true
+			);
+
+			if (!moduleSource) continue;
+			const code = /** @type {string} */ (moduleSource.source());
+			const ast = JavascriptParser._parse(code, {
+				sourceType: "auto"
+			});
+
+			const scopeManager = eslintScope.analyze(ast, {
+				ecmaVersion: 6,
+				sourceType: "module",
+				optimistic: true,
+				ignoreEval: true
+			});
+
+			const globalScope = scopeManager.acquire(ast);
+			if (inlinedModules && inlinedModules.has(m)) {
+				const moduleScope = globalScope.childScopes[0];
+				const variables = new Set();
+				for (const variable of moduleScope.variables) {
+					variables.add(variable);
+				}
+				inlinedModulesToInfo.set(m, { source: moduleSource, ast, variables });
+			} else {
+				for (const ref of globalScope.through) {
+					nonInlinedModuleThroughIdentifiers.add(ref.identifier.name);
+				}
+			}
+		}
+
+		for (const [module, { variables }] of inlinedModulesToInfo) {
+			for (const variable of variables) {
+				if (nonInlinedModuleThroughIdentifiers.has(variable.name)) {
+					usedIdentifiers.add({ m: module, variable });
+				}
+			}
+		}
+
+		const usedName = new Set();
+		for (const { variable, m } of usedIdentifiers) {
+			const references = getAllReferences(variable);
+			const { ast, source: _source } = inlinedModulesToInfo.get(m);
+			const source = new ReplaceSource(_source);
+			const allIdentifiers = new Set(
+				references.map(r => r.identifier).concat(variable.identifiers)
+			);
+
+			const newName = this.findNewName(
+				variable.name,
+				usedName,
+				m.readableIdentifier(runtimeTemplate.requestShortener)
+			);
+
+			for (const identifier of allIdentifiers) {
+				const r = identifier.range;
+				const path = getPathInAst(ast, identifier);
+				if (path && path.length > 1) {
+					const maybeProperty =
+						path[1].type === "AssignmentPattern" && path[1].left === path[0]
+							? path[2]
+							: path[1];
+					if (maybeProperty.type === "Property" && maybeProperty.shorthand) {
+						source.insert(r[1], `: ${newName}`);
+						continue;
+					}
+				}
+				source.replace(r[0], r[1] - 1, newName);
+			}
+
+			renamedInlinedModules.set(m, source);
+		}
+
+		return renamedInlinedModules;
+	}
+
+	/**
+	 * @param {string} oldName oldName
+	 * @param {Set<string>} usedName usedName
+	 * @param {string} extraInfo extraInfo
+	 * @returns {string} extraInfo
+	 */
+	findNewName(oldName, usedName, extraInfo) {
+		let name = oldName;
+
+		// Remove uncool stuff
+		extraInfo = extraInfo.replace(
+			/\.+\/|(\/index)?\.([a-zA-Z0-9]{1,4})($|\s|\?)|\s*\+\s*\d+\s*modules/g,
+			""
+		);
+		const splittedInfo = extraInfo.split("/");
+		while (splittedInfo.length) {
+			name = splittedInfo.pop() + (name ? "_" + name : "");
+			const nameIdent = Template.toIdentifier(name);
+			if (!usedName.has(nameIdent)) {
+				return nameIdent;
+			}
+		}
+
+		let i = 0;
+		let nameWithNumber = Template.toIdentifier(`${oldName}_${i}`);
+		while (usedName.has(nameWithNumber)) {
+			i++;
+			nameWithNumber = Template.toIdentifier(`${oldName}_${i}`);
+		}
+		return nameWithNumber;
+	}
 }
 
 module.exports = JavascriptModulesPlugin;
diff --git a/lib/optimize/ConcatenatedModule.js b/lib/optimize/ConcatenatedModule.js
index 70d7c5b462f..d75a0367831 100644
--- a/lib/optimize/ConcatenatedModule.js
+++ b/lib/optimize/ConcatenatedModule.js
@@ -26,6 +26,7 @@ const { concatComparators } = require("../util/comparators");
 const createHash = require("../util/createHash");
 const { makePathsRelative } = require("../util/identifier");
 const makeSerializable = require("../util/makeSerializable");
+const { getAllReferences, getPathInAst } = require("../util/mergeScope");
 const propertyAccess = require("../util/propertyAccess");
 const { propertyName } = require("../util/propertyName");
 const {
@@ -625,72 +626,6 @@ const addScopeSymbols = (s, nameSet, scopeSet1, scopeSet2) => {
 	}
 };
 
-/**
- * @param {Variable} variable variable
- * @returns {Reference[]} references
- */
-const getAllReferences = variable => {
-	let set = variable.references;
-	// Look for inner scope variables too (like in class Foo { t() { Foo } })
-	const identifiers = new Set(variable.identifiers);
-	for (const scope of variable.scope.childScopes) {
-		for (const innerVar of scope.variables) {
-			if (innerVar.identifiers.some(id => identifiers.has(id))) {
-				set = set.concat(innerVar.references);
-				break;
-			}
-		}
-	}
-	return set;
-};
-
-/**
- * @param {TODO} ast ast
- * @param {TODO} node node
- * @returns {TODO} result
- */
-const getPathInAst = (ast, node) => {
-	if (ast === node) {
-		return [];
-	}
-
-	const nr = node.range;
-
-	const enterNode = n => {
-		if (!n) return undefined;
-		const r = n.range;
-		if (r) {
-			if (r[0] <= nr[0] && r[1] >= nr[1]) {
-				const path = getPathInAst(n, node);
-				if (path) {
-					path.push(n);
-					return path;
-				}
-			}
-		}
-		return undefined;
-	};
-
-	if (Array.isArray(ast)) {
-		for (let i = 0; i < ast.length; i++) {
-			const enterResult = enterNode(ast[i]);
-			if (enterResult !== undefined) return enterResult;
-		}
-	} else if (ast && typeof ast === "object") {
-		const keys = Object.keys(ast);
-		for (let i = 0; i < keys.length; i++) {
-			const value = ast[keys[i]];
-			if (Array.isArray(value)) {
-				const pathResult = getPathInAst(value, node);
-				if (pathResult !== undefined) return pathResult;
-			} else if (value && typeof value === "object") {
-				const enterResult = enterNode(value);
-				if (enterResult !== undefined) return enterResult;
-			}
-		}
-	}
-};
-
 const TYPES = new Set(["javascript"]);
 
 class ConcatenatedModule extends Module {
diff --git a/lib/util/mergeScope.js b/lib/util/mergeScope.js
new file mode 100644
index 00000000000..d9190ebb8b1
--- /dev/null
+++ b/lib/util/mergeScope.js
@@ -0,0 +1,79 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("eslint-scope").Reference} Reference */
+/** @typedef {import("eslint-scope").Variable} Variable */
+/** @typedef {import("../javascript/JavascriptParser").AnyNode} AnyNode */
+/** @typedef {import("../javascript/JavascriptParser").Program} Program */
+
+/**
+ * @param {Variable} variable variable
+ * @returns {Reference[]} references
+ */
+const getAllReferences = variable => {
+	let set = variable.references;
+	// Look for inner scope variables too (like in class Foo { t() { Foo } })
+	const identifiers = new Set(variable.identifiers);
+	for (const scope of variable.scope.childScopes) {
+		for (const innerVar of scope.variables) {
+			if (innerVar.identifiers.some(id => identifiers.has(id))) {
+				set = set.concat(innerVar.references);
+				break;
+			}
+		}
+	}
+	return set;
+};
+
+/**
+ * @param {Program | Program[]} ast ast
+ * @param {AnyNode} node node
+ * @returns {undefined | AnyNode[]} result
+ */
+const getPathInAst = (ast, node) => {
+	if (ast === node) {
+		return [];
+	}
+
+	const nr = node.range;
+
+	const enterNode = n => {
+		if (!n) return undefined;
+		const r = n.range;
+		if (r) {
+			if (r[0] <= nr[0] && r[1] >= nr[1]) {
+				const path = getPathInAst(n, node);
+				if (path) {
+					path.push(n);
+					return path;
+				}
+			}
+		}
+		return undefined;
+	};
+
+	if (Array.isArray(ast)) {
+		for (let i = 0; i < ast.length; i++) {
+			const enterResult = enterNode(ast[i]);
+			if (enterResult !== undefined) return enterResult;
+		}
+	} else if (ast && typeof ast === "object") {
+		const keys = Object.keys(ast);
+		for (let i = 0; i < keys.length; i++) {
+			const value = ast[keys[i]];
+			if (Array.isArray(value)) {
+				const pathResult = getPathInAst(value, node);
+				if (pathResult !== undefined) return pathResult;
+			} else if (value && typeof value === "object") {
+				const enterResult = enterNode(value);
+				if (enterResult !== undefined) return enterResult;
+			}
+		}
+	}
+};
+
+module.exports = { getAllReferences, getPathInAst };
diff --git a/test/__snapshots__/StatsTestCases.basictest.js.snap b/test/__snapshots__/StatsTestCases.basictest.js.snap
index 3909e7f9f0b..9f13125a451 100644
--- a/test/__snapshots__/StatsTestCases.basictest.js.snap
+++ b/test/__snapshots__/StatsTestCases.basictest.js.snap
@@ -157,7 +157,7 @@ webpack/runtime/make namespace object 274 bytes {main} [code generated]
 
 exports[`StatsTestCases should print correct stats for asset 1`] = `
 "asset 89a353e9c515885abd8e.png 14.6 KiB [emitted] [immutable] [from: images/file.png] (auxiliary name: main)
-asset bundle.js 13.6 KiB [emitted] (name: main)
+asset bundle.js 13.4 KiB [emitted] (name: main)
 asset static/file.html 12 bytes [emitted] [from: static/file.html] (auxiliary name: main)
 runtime modules 1.15 KiB 2 modules
 modules by path ./ 9.36 KiB (javascript) 14.6 KiB (asset)
@@ -519,10 +519,10 @@ webpack x.x.x compiled with 1 warning in X ms"
 
 exports[`StatsTestCases should print correct stats for chunk-module-id-range 1`] = `
 "PublicPath: auto
-asset main1.js 4.52 KiB [emitted] (name: main1)
-asset main2.js 4.51 KiB [emitted] (name: main2)
-Entrypoint main1 4.52 KiB = main1.js
-Entrypoint main2 4.51 KiB = main2.js
+asset main1.js 4.39 KiB [emitted] (name: main1)
+asset main2.js 4.39 KiB [emitted] (name: main2)
+Entrypoint main1 4.39 KiB = main1.js
+Entrypoint main2 4.39 KiB = main2.js
 chunk (runtime: main1) main1.js (main1) 189 bytes (javascript) 670 bytes (runtime) [entry] [rendered]
   > ./main1 main1
   runtime modules 670 bytes 3 modules
@@ -546,7 +546,7 @@ webpack x.x.x compiled successfully in X ms"
 
 exports[`StatsTestCases should print correct stats for chunks 1`] = `
 "PublicPath: auto
-asset bundle.js 10.3 KiB [emitted] (name: main)
+asset bundle.js 10.2 KiB [emitted] (name: main)
 asset 964.bundle.js 323 bytes [emitted]
 asset 226.bundle.js 206 bytes [emitted]
 asset 899.bundle.js 138 bytes [emitted]
@@ -751,7 +751,7 @@ exports[`StatsTestCases should print correct stats for concat-and-sideeffects 1`
 `;
 
 exports[`StatsTestCases should print correct stats for context-independence 1`] = `
-"asset main-ca1a74034b366de49c9b.js 12.8 KiB [emitted] [immutable] (name: main)
+"asset main-ca1a74034b366de49c9b.js 12.7 KiB [emitted] [immutable] (name: main)
   sourceMap main-ca1a74034b366de49c9b.js.map 11.1 KiB [emitted] [dev] (auxiliary name: main)
 asset 977-0d034101f87f8fa73545.js 455 bytes [emitted] [immutable]
   sourceMap 977-0d034101f87f8fa73545.js.map 347 bytes [emitted] [dev]
@@ -767,7 +767,7 @@ built modules 500 bytes [built]
   ./a/cc/b.js (in my-layer) 18 bytes [optional] [built] [code generated]
 webpack x.x.x compiled successfully in X ms
 
-asset main-ca1a74034b366de49c9b.js 12.8 KiB [emitted] [immutable] (name: main)
+asset main-ca1a74034b366de49c9b.js 12.7 KiB [emitted] [immutable] (name: main)
   sourceMap main-ca1a74034b366de49c9b.js.map 11.1 KiB [emitted] [dev] (auxiliary name: main)
 asset 977-0d034101f87f8fa73545.js 455 bytes [emitted] [immutable]
   sourceMap 977-0d034101f87f8fa73545.js.map 347 bytes [emitted] [dev]
@@ -841,7 +841,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for custom-terser 1`] = `
-"asset bundle.js 586 bytes [emitted] [minimized] (name: main)
+"asset bundle.js 623 bytes [emitted] [minimized] (name: main)
 ./index.js 128 bytes [built] [code generated]
   [no exports used]
 ./a.js 49 bytes [built] [code generated]
@@ -1021,7 +1021,7 @@ webpack x.x.x compiled with 1 error in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for dynamic-chunk-name-error 1`] = `
-"assets by status 8.29 KiB [cached] 3 assets
+"assets by status 8.04 KiB [cached] 3 assets
 runtime modules 3.54 KiB 8 modules
 cacheable modules 128 bytes
   ./entry-1.js 63 bytes [built] [code generated]
@@ -1164,7 +1164,7 @@ webpack x.x.x compiled with 2 errors in X ms"
 
 exports[`StatsTestCases should print correct stats for exclude-with-loader 1`] = `
 "hidden assets 34 bytes 1 asset
-asset bundle.js 5.38 KiB [emitted] (name: main)
+asset bundle.js 5.25 KiB [emitted] (name: main)
 runtime modules 1.81 KiB 5 modules
 hidden modules 99 bytes 2 modules
 cacheable modules 119 bytes
@@ -1174,7 +1174,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for external 1`] = `
-"asset main.js 1.37 KiB [emitted] (name: main)
+"asset main.js 1.25 KiB [emitted] (name: main)
 ./index.js 17 bytes [built] [code generated]
 external \\"test\\" 42 bytes [built] [code generated]
 webpack x.x.x compiled successfully in X ms"
@@ -1295,7 +1295,7 @@ asset 22c24a3b26d46118dc06.js 809 bytes [emitted] [immutable]"
 `;
 
 exports[`StatsTestCases should print correct stats for import-context-filter 1`] = `
-"asset entry.js 12 KiB [emitted] (name: entry)
+"asset entry.js 11.9 KiB [emitted] (name: entry)
 asset 717.js 482 bytes [emitted]
 asset 776.js 482 bytes [emitted]
 asset 0.js 475 bytes [emitted]
@@ -1394,7 +1394,7 @@ webpack x.x.x compiled successfully in X ms"
 
 exports[`StatsTestCases should print correct stats for limit-chunk-count-plugin 1`] = `
 "1 chunks:
-  asset bundle1.js 4.85 KiB [emitted] (name: main)
+  asset bundle1.js 4.72 KiB [emitted] (name: main)
   chunk (runtime: main) bundle1.js (main) 219 bytes (javascript) 1.77 KiB (runtime) <{792}> >{792}< [entry] [rendered]
     runtime modules 1.77 KiB 4 modules
     cacheable modules 219 bytes
@@ -1547,14 +1547,14 @@ webpack x.x.x compiled <CLR=32,BOLD>successfully</CLR> in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for max-external-module-readable-identifier 1`] = `
-"asset main.js 1.45 KiB [emitted] (name: main)
+"asset main.js 1.32 KiB [emitted] (name: main)
 ./index.js 17 bytes [built] [code generated]
 external \\"very-very-very-very-long-external-module-readable-identifier-it-should...(truncated) 42 bytes [built] [code generated]
 webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for max-modules 1`] = `
-"asset main.js 5.46 KiB [emitted] (name: main)
+"asset main.js 5.34 KiB [emitted] (name: main)
 ./index.js 181 bytes [built] [code generated]
 ./a.js?1 33 bytes [built] [code generated]
 ./a.js?2 33 bytes [built] [code generated]
@@ -1579,7 +1579,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for max-modules-default 1`] = `
-"asset main.js 5.46 KiB [emitted] (name: main)
+"asset main.js 5.34 KiB [emitted] (name: main)
 ./index.js 181 bytes [built] [code generated]
 ./a.js?1 33 bytes [built] [code generated]
 ./a.js?2 33 bytes [built] [code generated]
@@ -1630,9 +1630,9 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for module-deduplication 1`] = `
-"asset e2.js 12.2 KiB [emitted] (name: e2)
-asset e3.js 12.2 KiB [emitted] (name: e3)
-asset e1.js 12.2 KiB [emitted] (name: e1)
+"asset e2.js 12.1 KiB [emitted] (name: e2)
+asset e3.js 12.1 KiB [emitted] (name: e3)
+asset e1.js 12.1 KiB [emitted] (name: e1)
 asset 471.js 856 bytes [emitted]
 asset 752.js 856 bytes [emitted]
 asset 637.js 854 bytes [emitted]
@@ -1676,9 +1676,9 @@ webpack x.x.x compiled successfully"
 `;
 
 exports[`StatsTestCases should print correct stats for module-deduplication-named 1`] = `
-"asset e2.js 12.1 KiB [emitted] (name: e2)
-asset e1.js 12.1 KiB [emitted] (name: e1)
-asset e3.js 12.1 KiB [emitted] (name: e3)
+"asset e2.js 12 KiB [emitted] (name: e2)
+asset e1.js 12 KiB [emitted] (name: e1)
+asset e3.js 12 KiB [emitted] (name: e3)
 asset async1.js 961 bytes [emitted] (name: async1)
 asset async2.js 961 bytes [emitted] (name: async2)
 asset async3.js 960 bytes [emitted] (name: async3)
@@ -1765,7 +1765,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for module-trace-disabled-in-error 1`] = `
-"assets by status 2 KiB [cached] 1 asset
+"assets by status 1.88 KiB [cached] 1 asset
 ./index.js 19 bytes [built] [code generated]
 ./inner.js 53 bytes [built] [code generated]
 ./not-existing.js 26 bytes [built] [code generated]
@@ -1787,7 +1787,7 @@ webpack x.x.x compiled with 2 errors in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for module-trace-enabled-in-error 1`] = `
-"assets by status 2 KiB [cached] 1 asset
+"assets by status 1.88 KiB [cached] 1 asset
 ./index.js 19 bytes [built] [code generated]
 ./inner.js 53 bytes [built] [code generated]
 ./not-existing.js 26 bytes [built] [code generated]
@@ -1907,7 +1907,7 @@ webpack x.x.x compiled with 1 error and 1 warning in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for optimize-chunks 1`] = `
-"asset main.js 11.1 KiB {792} [emitted] (name: main)
+"asset main.js 11 KiB {792} [emitted] (name: main)
 asset cir2 from cir1.js 377 bytes {816}, {915} [emitted] (name: cir2 from cir1)
 asset cir1.js 333 bytes {712} [emitted] (name: cir1)
 asset cir2.js 333 bytes {915} [emitted] (name: cir2)
@@ -2106,9 +2106,9 @@ webpack x.x.x compiled with <CLR=31,BOLD>2 errors</CLR> in X ms"
 
 exports[`StatsTestCases should print correct stats for performance-no-async-chunks-shown 1`] = `
 "asset <CLR=33,BOLD>main.js</CLR> <CLR=33,BOLD>294 KiB</CLR> <CLR=32,BOLD>[emitted]</CLR> <CLR=33,BOLD>[big]</CLR> (name: main)
-asset <CLR=32,BOLD>sec.js</CLR> 1.53 KiB <CLR=32,BOLD>[emitted]</CLR> (name: sec)
+asset <CLR=32,BOLD>sec.js</CLR> 1.41 KiB <CLR=32,BOLD>[emitted]</CLR> (name: sec)
 Entrypoint <CLR=BOLD>main</CLR> <CLR=33,BOLD>[big]</CLR> 294 KiB = <CLR=32,BOLD>main.js</CLR>
-Entrypoint <CLR=BOLD>sec</CLR> 1.53 KiB = <CLR=32,BOLD>sec.js</CLR>
+Entrypoint <CLR=BOLD>sec</CLR> 1.41 KiB = <CLR=32,BOLD>sec.js</CLR>
 <CLR=BOLD>./index.js</CLR> 32 bytes <CLR=33,BOLD>[built]</CLR> <CLR=33,BOLD>[code generated]</CLR>
 <CLR=BOLD>./index2.js</CLR> 48 bytes <CLR=33,BOLD>[built]</CLR> <CLR=33,BOLD>[code generated]</CLR>
 <CLR=BOLD>./a.js</CLR> 293 KiB <CLR=33,BOLD>[built]</CLR> <CLR=33,BOLD>[code generated]</CLR>
@@ -2243,11 +2243,11 @@ exports[`StatsTestCases should print correct stats for preset-detailed 1`] = `
       [LogTestPlugin] Log
     [LogTestPlugin] End
 PublicPath: auto
-asset main.js 10.3 KiB {792} [emitted] (name: main)
+asset main.js 10.2 KiB {792} [emitted] (name: main)
 asset 964.js 323 bytes {964} [emitted]
 asset 226.js 206 bytes {226} [emitted]
 asset 899.js 138 bytes {899} [emitted]
-Entrypoint main 10.3 KiB = main.js
+Entrypoint main 10.2 KiB = main.js
 chunk {226} (runtime: main) 226.js 44 bytes <{964}> [rendered]
   > [964] ./c.js 1:0-52
 chunk {792} (runtime: main) main.js (main) 73 bytes (javascript) 6.05 KiB (runtime) >{899}< >{964}< [entry] [rendered]
@@ -2421,7 +2421,7 @@ exports[`StatsTestCases should print correct stats for preset-normal 1`] = `
 "<e> [LogTestPlugin] Error
 <w> [LogTestPlugin] Warning
 <i> [LogTestPlugin] Info
-asset main.js 10.3 KiB [emitted] (name: main)
+asset main.js 10.2 KiB [emitted] (name: main)
 asset 964.js 323 bytes [emitted]
 asset 226.js 206 bytes [emitted]
 asset 899.js 138 bytes [emitted]
@@ -2519,11 +2519,11 @@ exports[`StatsTestCases should print correct stats for preset-verbose 1`] = `
       [LogTestPlugin] Log
     [LogTestPlugin] End
 PublicPath: auto
-asset main.js 10.3 KiB {792} [emitted] (name: main)
+asset main.js 10.2 KiB {792} [emitted] (name: main)
 asset 964.js 323 bytes {964} [emitted]
 asset 226.js 206 bytes {226} [emitted]
 asset 899.js 138 bytes {899} [emitted]
-Entrypoint main 10.3 KiB = main.js
+Entrypoint main 10.2 KiB = main.js
 chunk {226} (runtime: main) 226.js 44 bytes <{964}> [rendered]
   > [964] ./c.js 1:0-52
   ./d.js [425] 22 bytes {226} [depth 2] [built] [code generated]
@@ -2845,18 +2845,18 @@ b-source-map:
 
 exports[`StatsTestCases should print correct stats for related-assets 1`] = `
 "default:
-  assets by path *.js 15.3 KiB
-    asset default-main.js 14.5 KiB [emitted] (name: main) 3 related assets
+  assets by path *.js 15.2 KiB
+    asset default-main.js 14.4 KiB [emitted] (name: main) 3 related assets
     asset default-chunk_js.js 803 bytes [emitted] 3 related assets
   assets by path *.css 142 bytes
     asset default-chunk_js.css 73 bytes [emitted] 3 related assets
     asset default-main.css 69 bytes [emitted] (name: main) 3 related assets
 
 relatedAssets:
-  assets by path *.js 15.3 KiB
-    asset relatedAssets-main.js 14.5 KiB [emitted] (name: main)
-      compressed relatedAssets-main.js.br 14.5 KiB [emitted]
-      compressed relatedAssets-main.js.gz 14.5 KiB [emitted]
+  assets by path *.js 15.2 KiB
+    asset relatedAssets-main.js 14.4 KiB [emitted] (name: main)
+      compressed relatedAssets-main.js.br 14.4 KiB [emitted]
+      compressed relatedAssets-main.js.gz 14.4 KiB [emitted]
       sourceMap relatedAssets-main.js.map 12.6 KiB [emitted] [dev] (auxiliary name: main)
         compressed relatedAssets-main.js.map.br 12.6 KiB [emitted]
         compressed relatedAssets-main.js.map.gz 12.6 KiB [emitted]
@@ -2881,9 +2881,9 @@ relatedAssets:
       compressed relatedAssets-main.css.gz 75 bytes [emitted]
 
 exclude1:
-  assets by path *.js 15.3 KiB
-    asset exclude1-main.js 14.5 KiB [emitted] (name: main)
-      hidden assets 29.1 KiB 2 assets
+  assets by path *.js 15.2 KiB
+    asset exclude1-main.js 14.4 KiB [emitted] (name: main)
+      hidden assets 28.8 KiB 2 assets
       sourceMap exclude1-main.js.map 12.5 KiB [emitted] [dev] (auxiliary name: main)
         hidden assets 25.1 KiB 2 assets
         + 1 related asset
@@ -2909,11 +2909,11 @@ exclude1:
       + 1 related asset
 
 exclude2:
-  assets by path *.js 15.3 KiB
-    asset exclude2-main.js 14.5 KiB [emitted] (name: main)
+  assets by path *.js 15.2 KiB
+    asset exclude2-main.js 14.4 KiB [emitted] (name: main)
       hidden assets 12.5 KiB 1 asset
-      compressed exclude2-main.js.br 14.5 KiB [emitted]
-      compressed exclude2-main.js.gz 14.5 KiB [emitted]
+      compressed exclude2-main.js.br 14.4 KiB [emitted]
+      compressed exclude2-main.js.gz 14.4 KiB [emitted]
     asset exclude2-chunk_js.js 804 bytes [emitted]
       hidden assets 295 bytes 1 asset
       compressed exclude2-chunk_js.js.br 804 bytes [emitted]
@@ -2930,10 +2930,10 @@ exclude2:
 
 exclude3:
   hidden assets 878 bytes 2 assets
-  assets by status 14.6 KiB [emitted]
-    asset exclude3-main.js 14.5 KiB [emitted] (name: main)
-      compressed exclude3-main.js.br 14.5 KiB [emitted]
-      compressed exclude3-main.js.gz 14.5 KiB [emitted]
+  assets by status 14.5 KiB [emitted]
+    asset exclude3-main.js 14.4 KiB [emitted] (name: main)
+      compressed exclude3-main.js.br 14.4 KiB [emitted]
+      compressed exclude3-main.js.gz 14.4 KiB [emitted]
       sourceMap exclude3-main.js.map 12.5 KiB [emitted] [dev] (auxiliary name: main)
         compressed exclude3-main.js.map.br 12.5 KiB [emitted]
         compressed exclude3-main.js.map.gz 12.5 KiB [emitted]
@@ -2946,7 +2946,7 @@ exclude3:
 `;
 
 exports[`StatsTestCases should print correct stats for resolve-plugin-context 1`] = `
-"asset bundle.js 1.67 KiB [emitted] (name: main)
+"asset bundle.js 1.55 KiB [emitted] (name: main)
 modules by path ./node_modules/def/ 17 bytes
   ./node_modules/def/index.js 16 bytes [built] [code generated]
   ./node_modules/def/node_modules/xyz/index.js 1 bytes [built] [code generated]
@@ -2957,7 +2957,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for reverse-sort-modules 1`] = `
-"asset main.js 5.46 KiB [emitted] (name: main)
+"asset main.js 5.34 KiB [emitted] (name: main)
 ./index.js 181 bytes [built] [code generated]
 ./c.js?9 33 bytes [built] [code generated]
 ./c.js?8 33 bytes [built] [code generated]
@@ -3066,8 +3066,8 @@ webpack x.x.x compiled successfully"
 
 exports[`StatsTestCases should print correct stats for runtime-specific-used-exports 1`] = `
 "production:
-  asset production-a.js 13.2 KiB [emitted] (name: a)
-  asset production-b.js 13.2 KiB [emitted] (name: b)
+  asset production-a.js 13.1 KiB [emitted] (name: a)
+  asset production-b.js 13.1 KiB [emitted] (name: b)
   asset production-dw_js-_a6170.js 1.15 KiB [emitted]
   asset production-dw_js-_a6171.js 1.15 KiB [emitted]
   asset production-dx_js.js 1.15 KiB [emitted]
@@ -3233,8 +3233,8 @@ development:
   development (webpack x.x.x) compiled successfully in X ms
 
 global:
-  asset global-a.js 13.4 KiB [emitted] (name: a)
-  asset global-b.js 13.4 KiB [emitted] (name: b)
+  asset global-a.js 13.3 KiB [emitted] (name: a)
+  asset global-b.js 13.3 KiB [emitted] (name: b)
   asset global-dw_js.js 1.15 KiB [emitted]
   asset global-dx_js.js 1.15 KiB [emitted]
   asset global-dy_js.js 1.15 KiB [emitted]
@@ -3391,7 +3391,7 @@ webpack x.x.x compiled successfully in X ms"
 `;
 
 exports[`StatsTestCases should print correct stats for side-effects-issue-7428 1`] = `
-"asset main.js 12.4 KiB [emitted] (name: main)
+"asset main.js 12.2 KiB [emitted] (name: main)
 asset 1.js 643 bytes [emitted]
 runtime modules 6.62 KiB 9 modules
 cacheable modules 823 bytes
@@ -3569,9 +3569,9 @@ webpack x.x.x compiled successfully in X ms"
 exports[`StatsTestCases should print correct stats for split-chunks 1`] = `
 "default:
   Entrypoint main 11.5 KiB = default/main.js
-  Entrypoint a 12.6 KiB = default/a.js
-  Entrypoint b 3.93 KiB = default/b.js
-  Entrypoint c 3.93 KiB = default/c.js
+  Entrypoint a 12.5 KiB = default/a.js
+  Entrypoint b 3.81 KiB = default/b.js
+  Entrypoint c 3.81 KiB = default/c.js
   chunk (runtime: a, main) default/async-g.js (async-g) 45 bytes <{263}> <{425}> <{628}> <{723}> <{996}> ={935}= [rendered]
     > ./g ./a.js 6:0-47
     ./g.js 45 bytes [built] [code generated]
@@ -3843,7 +3843,7 @@ name-too-long:
 
 custom-chunks-filter:
   Entrypoint main 11.5 KiB = custom-chunks-filter/main.js
-  Entrypoint a 12.6 KiB = custom-chunks-filter/a.js
+  Entrypoint a 12.5 KiB = custom-chunks-filter/a.js
   Entrypoint b 8.13 KiB = custom-chunks-filter/628.js 412 bytes custom-chunks-filter/723.js 412 bytes custom-chunks-filter/935.js 412 bytes custom-chunks-filter/425.js 412 bytes custom-chunks-filter/b.js 6.52 KiB
   Entrypoint c 8.13 KiB = custom-chunks-filter/628.js 412 bytes custom-chunks-filter/862.js 412 bytes custom-chunks-filter/935.js 412 bytes custom-chunks-filter/425.js 412 bytes custom-chunks-filter/c.js 6.52 KiB
   chunk (runtime: a, main) custom-chunks-filter/async-g.js (async-g) 45 bytes <{263}> <{425}> <{628}> <{723}> <{996}> ={935}= [rendered]
diff --git a/test/configCases/output-module/inlined-moudle/index.js b/test/configCases/output-module/inlined-moudle/index.js
new file mode 100644
index 00000000000..d528599c4d3
--- /dev/null
+++ b/test/configCases/output-module/inlined-moudle/index.js
@@ -0,0 +1,18 @@
+import { value as v1 } from "./module1";
+const v2 = require("./module2")
+const module3Inc = require("./module3")
+
+var value = 42;
+
+function inc() {
+	value++;
+}
+
+it("single inlined module should not be wrapped in IIFE", () => {
+	expect(value).toBe(42);
+	expect(v1).toBe(undefined);
+	expect(v2).toBe(undefined);
+	expect(module3Inc).toBe(undefined);
+	inc();
+	expect(value).toBe(43);
+});
diff --git a/test/configCases/output-module/inlined-moudle/module1.js b/test/configCases/output-module/inlined-moudle/module1.js
new file mode 100644
index 00000000000..67ebbe022de
--- /dev/null
+++ b/test/configCases/output-module/inlined-moudle/module1.js
@@ -0,0 +1,3 @@
+let value;
+
+export { value };
diff --git a/test/configCases/output-module/inlined-moudle/module2.js b/test/configCases/output-module/inlined-moudle/module2.js
new file mode 100644
index 00000000000..3e533c777ea
--- /dev/null
+++ b/test/configCases/output-module/inlined-moudle/module2.js
@@ -0,0 +1,3 @@
+let value
+
+module.exports = value
diff --git a/test/configCases/output-module/inlined-moudle/module3.js b/test/configCases/output-module/inlined-moudle/module3.js
new file mode 100644
index 00000000000..5b457b1be85
--- /dev/null
+++ b/test/configCases/output-module/inlined-moudle/module3.js
@@ -0,0 +1,3 @@
+let inc
+
+module.exports = inc
diff --git a/test/configCases/output-module/inlined-moudle/webpack.config.js b/test/configCases/output-module/inlined-moudle/webpack.config.js
new file mode 100644
index 00000000000..61f4abca976
--- /dev/null
+++ b/test/configCases/output-module/inlined-moudle/webpack.config.js
@@ -0,0 +1,13 @@
+/** @type {import("../../../../").Configuration} */
+module.exports = {
+	output: {
+		module: true
+	},
+	optimization: {
+		concatenateModules: true
+	},
+	experiments: {
+		outputModule: true
+	},
+	target: "es2020"
+};
diff --git a/types.d.ts b/types.d.ts
index 769cd056294..39223778a1a 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -5529,6 +5529,18 @@ declare class JavascriptModulesPlugin {
 		renderContext: RenderBootstrapContext,
 		hooks: CompilationHooksJavascriptModulesPlugin
 	): string;
+	renamedRootModule(
+		allModules: Module[],
+		renderContext: MainRenderContext,
+		inlinedModules: Set<Module>,
+		chunkRenderContext: ChunkRenderContext,
+		hooks: CompilationHooksJavascriptModulesPlugin
+	): Map<Module, Source>;
+	findNewName(
+		oldName: string,
+		usedName: Set<string>,
+		extraInfo: string
+	): string;
 	static getCompilationHooks(
 		compilation: Compilation
 	): CompilationHooksJavascriptModulesPlugin;