diff --git a/goldens/circular-deps/packages.json b/goldens/circular-deps/packages.json
index 4321adf60eaa..fe51488c7066 100644
--- a/goldens/circular-deps/packages.json
+++ b/goldens/circular-deps/packages.json
@@ -1,30 +1 @@
-[
-  [
-    "packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts",
-    "packages/angular/build/src/tools/esbuild/bundler-context.ts",
-    "packages/angular/build/src/tools/esbuild/utils.ts",
-    "packages/angular/build/src/tools/esbuild/bundler-execution-result.ts"
-  ],
-  [
-    "packages/angular/build/src/tools/esbuild/bundler-context.ts",
-    "packages/angular/build/src/tools/esbuild/utils.ts"
-  ],
-  [
-    "packages/angular/build/src/tools/esbuild/bundler-context.ts",
-    "packages/angular/build/src/tools/esbuild/utils.ts",
-    "packages/angular/build/src/tools/esbuild/bundler-execution-result.ts"
-  ],
-  [
-    "packages/angular/build/src/tools/esbuild/bundler-context.ts",
-    "packages/angular/build/src/tools/esbuild/utils.ts",
-    "packages/angular/build/src/utils/server-rendering/manifest.ts"
-  ],
-  [
-    "packages/angular/build/src/tools/esbuild/bundler-execution-result.ts",
-    "packages/angular/build/src/tools/esbuild/utils.ts"
-  ],
-  [
-    "packages/angular/build/src/tools/esbuild/utils.ts",
-    "packages/angular/build/src/utils/server-rendering/manifest.ts"
-  ]
-]
+[]
diff --git a/goldens/public-api/angular/build/index.api.md b/goldens/public-api/angular/build/index.api.md
index 3ca6e8d98d12..df3f8fe8c777 100644
--- a/goldens/public-api/angular/build/index.api.md
+++ b/goldens/public-api/angular/build/index.api.md
@@ -8,7 +8,7 @@ import { BuilderContext } from '@angular-devkit/architect';
 import { BuilderOutput } from '@angular-devkit/architect';
 import type { ConfigOptions } from 'karma';
 import type http from 'node:http';
-import { OutputFile } from 'esbuild';
+import type { OutputFile } from 'esbuild';
 import type { Plugin as Plugin_2 } from 'esbuild';
 
 // @public (undocumented)
diff --git a/packages/angular/build/src/builders/application/build-action.ts b/packages/angular/build/src/builders/application/build-action.ts
index afc59785be7d..d483d32909c0 100644
--- a/packages/angular/build/src/builders/application/build-action.ts
+++ b/packages/angular/build/src/builders/application/build-action.ts
@@ -9,8 +9,8 @@
 import { BuilderContext } from '@angular-devkit/architect';
 import { existsSync } from 'node:fs';
 import path from 'node:path';
-import { BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-context';
 import { ExecutionResult, RebuildState } from '../../tools/esbuild/bundler-execution-result';
+import { BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 import { shutdownSassWorkerPool } from '../../tools/esbuild/stylesheets/sass-language';
 import { logMessages, withNoProgress, withSpinner } from '../../tools/esbuild/utils';
 import { ChangedFiles } from '../../tools/esbuild/watcher';
diff --git a/packages/angular/build/src/builders/application/chunk-optimizer.ts b/packages/angular/build/src/builders/application/chunk-optimizer.ts
index 5898c95401ee..1586b48155ea 100644
--- a/packages/angular/build/src/builders/application/chunk-optimizer.ts
+++ b/packages/angular/build/src/builders/application/chunk-optimizer.ts
@@ -20,13 +20,13 @@
 import type { Message, Metafile } from 'esbuild';
 import assert from 'node:assert';
 import { type Plugin, rollup } from 'rollup';
+import { BundleContextResult } from '../../tools/esbuild/bundler-context';
 import {
-  BuildOutputFile,
+  type BuildOutputFile,
   BuildOutputFileType,
-  BundleContextResult,
-  InitialFileRecord,
-} from '../../tools/esbuild/bundler-context';
-import { createOutputFile } from '../../tools/esbuild/utils';
+  type InitialFileRecord,
+  createOutputFile,
+} from '../../tools/esbuild/bundler-files';
 import { useRolldownChunks } from '../../utils/environment-options';
 import { assertIsError } from '../../utils/error';
 import { toPosixPath } from '../../utils/path';
diff --git a/packages/angular/build/src/builders/application/execute-build.ts b/packages/angular/build/src/builders/application/execute-build.ts
index 5aefadc9d904..69b6db0c736d 100644
--- a/packages/angular/build/src/builders/application/execute-build.ts
+++ b/packages/angular/build/src/builders/application/execute-build.ts
@@ -10,12 +10,9 @@ import { BuilderContext } from '@angular-devkit/architect';
 import { createAngularCompilation } from '../../tools/angular/compilation';
 import { SourceFileCache } from '../../tools/esbuild/angular/source-file-cache';
 import { generateBudgetStats } from '../../tools/esbuild/budget-stats';
-import {
-  BuildOutputFileType,
-  BundleContextResult,
-  BundlerContext,
-} from '../../tools/esbuild/bundler-context';
+import { BundleContextResult, BundlerContext } from '../../tools/esbuild/bundler-context';
 import { ExecutionResult, RebuildState } from '../../tools/esbuild/bundler-execution-result';
+import { BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 import { checkCommonJSModules } from '../../tools/esbuild/commonjs-checker';
 import { extractLicenses } from '../../tools/esbuild/license-extractor';
 import { profileAsync } from '../../tools/esbuild/profiling';
diff --git a/packages/angular/build/src/builders/application/execute-post-bundle.ts b/packages/angular/build/src/builders/application/execute-post-bundle.ts
index 5171ca254d5d..aa931aaa5206 100644
--- a/packages/angular/build/src/builders/application/execute-post-bundle.ts
+++ b/packages/angular/build/src/builders/application/execute-post-bundle.ts
@@ -9,16 +9,16 @@
 import type { Metafile } from 'esbuild';
 import assert from 'node:assert';
 import {
-  BuildOutputFile,
-  BuildOutputFileType,
-  InitialFileRecord,
-} from '../../tools/esbuild/bundler-context';
-import {
-  BuildOutputAsset,
-  PrerenderedRoutesRecord,
+  type BuildOutputAsset,
+  type PrerenderedRoutesRecord,
 } from '../../tools/esbuild/bundler-execution-result';
+import {
+  type BuildOutputFile,
+  BuildOutputFileType,
+  type InitialFileRecord,
+  createOutputFile,
+} from '../../tools/esbuild/bundler-files';
 import { generateIndexHtml } from '../../tools/esbuild/index-html-generator';
-import { createOutputFile } from '../../tools/esbuild/utils';
 import { maxWorkers } from '../../utils/environment-options';
 import {
   SERVER_APP_MANIFEST_FILENAME,
diff --git a/packages/angular/build/src/builders/application/i18n.ts b/packages/angular/build/src/builders/application/i18n.ts
index 081be50e7a9f..c83f1a29a30a 100644
--- a/packages/angular/build/src/builders/application/i18n.ts
+++ b/packages/angular/build/src/builders/application/i18n.ts
@@ -9,11 +9,11 @@
 import { BuilderContext } from '@angular-devkit/architect';
 import type { Metafile } from 'esbuild';
 import { join } from 'node:path';
-import { BuildOutputFileType, InitialFileRecord } from '../../tools/esbuild/bundler-context';
 import {
   ExecutionResult,
   PrerenderedRoutesRecord,
 } from '../../tools/esbuild/bundler-execution-result';
+import { BuildOutputFileType, InitialFileRecord } from '../../tools/esbuild/bundler-files';
 import { I18nInliner } from '../../tools/esbuild/i18n-inliner';
 import { maxWorkers } from '../../utils/environment-options';
 import { loadTranslations } from '../../utils/i18n-options';
diff --git a/packages/angular/build/src/builders/application/index.ts b/packages/angular/build/src/builders/application/index.ts
index d4671decc145..f127ef4bdc7f 100644
--- a/packages/angular/build/src/builders/application/index.ts
+++ b/packages/angular/build/src/builders/application/index.ts
@@ -10,7 +10,7 @@ import { Builder, BuilderContext, BuilderOutput, createBuilder } from '@angular-
 import assert from 'node:assert';
 import fs from 'node:fs/promises';
 import path from 'node:path';
-import { BuildOutputFileType } from '../../tools/esbuild/bundler-context';
+import { BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 import { createJsonBuildManifest, emitFilesToDisk } from '../../tools/esbuild/utils';
 import { colors as ansiColors } from '../../utils/color';
 import { deleteOutputDir } from '../../utils/delete-output-dir';
diff --git a/packages/angular/build/src/builders/application/results.ts b/packages/angular/build/src/builders/application/results.ts
index 3e3f0dd99315..6fa23f9f19cd 100644
--- a/packages/angular/build/src/builders/application/results.ts
+++ b/packages/angular/build/src/builders/application/results.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import { BuildOutputFileType } from '../../tools/esbuild/bundler-context';
+import { BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 
 export enum ResultKind {
   Failure,
diff --git a/packages/angular/build/src/builders/dev-server/internal.ts b/packages/angular/build/src/builders/dev-server/internal.ts
index a0a6f2de57b4..4e5e97e5cf14 100644
--- a/packages/angular/build/src/builders/dev-server/internal.ts
+++ b/packages/angular/build/src/builders/dev-server/internal.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-export { type BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-context';
+export { type BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 export { createRxjsEsmResolutionPlugin } from '../../tools/esbuild/rxjs-esm-resolution-plugin';
 export { JavaScriptTransformer } from '../../tools/esbuild/javascript-transformer';
 export { getFeatureSupport, isZonelessApp } from '../../tools/esbuild/utils';
diff --git a/packages/angular/build/src/builders/karma/utils.ts b/packages/angular/build/src/builders/karma/utils.ts
index 6ce8e33ed9aa..9a8aa749c269 100644
--- a/packages/angular/build/src/builders/karma/utils.ts
+++ b/packages/angular/build/src/builders/karma/utils.ts
@@ -8,7 +8,7 @@
 
 import type { BuilderContext } from '@angular-devkit/architect';
 import { createRequire } from 'node:module';
-import { BuildOutputFileType } from '../../tools/esbuild/bundler-context';
+import { BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 import { getProjectRootPaths } from '../../utils/project-metadata';
 import { findTests, getTestEntrypoints } from './find-tests';
 import type { NormalizedKarmaBuilderOptions } from './options';
diff --git a/packages/angular/build/src/index.ts b/packages/angular/build/src/index.ts
index 2831f59a38f4..b6a547921db8 100644
--- a/packages/angular/build/src/index.ts
+++ b/packages/angular/build/src/index.ts
@@ -8,7 +8,7 @@
 
 export { buildApplication, type ApplicationBuilderOptions } from './builders/application';
 export type { ApplicationBuilderExtensions } from './builders/application/options';
-export { type BuildOutputFile, BuildOutputFileType } from './tools/esbuild/bundler-context';
+export { type BuildOutputFile, BuildOutputFileType } from './tools/esbuild/bundler-files';
 export type { BuildOutputAsset } from './tools/esbuild/bundler-execution-result';
 
 export {
diff --git a/packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts b/packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts
index 3b8d12ec1461..79008d140729 100644
--- a/packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts
+++ b/packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts
@@ -9,12 +9,8 @@
 import assert from 'node:assert';
 import { createHash } from 'node:crypto';
 import path from 'node:path';
-import {
-  BuildOutputFile,
-  BuildOutputFileType,
-  BundleContextResult,
-  BundlerContext,
-} from '../bundler-context';
+import { BundleContextResult, BundlerContext } from '../bundler-context';
+import { type BuildOutputFile, BuildOutputFileType } from '../bundler-files';
 import { MemoryCache } from '../cache';
 import {
   BundleStylesheetOptions,
diff --git a/packages/angular/build/src/tools/esbuild/application-code-bundle.ts b/packages/angular/build/src/tools/esbuild/application-code-bundle.ts
index d11e1b6fb63c..7333843d7196 100644
--- a/packages/angular/build/src/tools/esbuild/application-code-bundle.ts
+++ b/packages/angular/build/src/tools/esbuild/application-code-bundle.ts
@@ -17,6 +17,7 @@ import { toPosixPath } from '../../utils/path';
 import {
   SERVER_APP_ENGINE_MANIFEST_FILENAME,
   SERVER_APP_MANIFEST_FILENAME,
+  SERVER_GENERATED_EXTERNALS,
 } from '../../utils/server-rendering/manifest';
 import { AngularCompilation, NoopCompilation } from '../angular/compilation';
 import { createCompilerPlugin } from './angular/compiler-plugin';
@@ -32,7 +33,7 @@ import { createLoaderImportAttributePlugin } from './loader-import-attribute-plu
 import { createRxjsEsmResolutionPlugin } from './rxjs-esm-resolution-plugin';
 import { createServerBundleMetadata } from './server-bundle-metadata-plugin';
 import { createSourcemapIgnorelistPlugin } from './sourcemap-ignorelist-plugin';
-import { SERVER_GENERATED_EXTERNALS, getFeatureSupport, isZonelessApp } from './utils';
+import { getFeatureSupport, isZonelessApp } from './utils';
 import { createVirtualModulePlugin } from './virtual-module-plugin';
 import { createWasmPlugin } from './wasm-plugin';
 
diff --git a/packages/angular/build/src/tools/esbuild/budget-stats.ts b/packages/angular/build/src/tools/esbuild/budget-stats.ts
index ee9b6b3b6dde..a9c32778b3db 100644
--- a/packages/angular/build/src/tools/esbuild/budget-stats.ts
+++ b/packages/angular/build/src/tools/esbuild/budget-stats.ts
@@ -8,11 +8,7 @@
 
 import type { Metafile } from 'esbuild';
 import type { BudgetStats } from '../../utils/bundle-calculator';
-import {
-  type BuildOutputFile,
-  BuildOutputFileType,
-  type InitialFileRecord,
-} from './bundler-context';
+import { type BuildOutputFile, BuildOutputFileType, type InitialFileRecord } from './bundler-files';
 import { getChunkNameFromMetafile } from './utils';
 
 /**
diff --git a/packages/angular/build/src/tools/esbuild/bundler-context.ts b/packages/angular/build/src/tools/esbuild/bundler-context.ts
index 864ca2c6fdd9..308e3509acdb 100644
--- a/packages/angular/build/src/tools/esbuild/bundler-context.ts
+++ b/packages/angular/build/src/tools/esbuild/bundler-context.ts
@@ -20,8 +20,14 @@ import {
 import assert from 'node:assert';
 import { builtinModules } from 'node:module';
 import { basename, extname, join, relative } from 'node:path';
+import { SERVER_GENERATED_EXTERNALS } from '../../utils/server-rendering/manifest';
+import {
+  type BuildOutputFile,
+  BuildOutputFileType,
+  type InitialFileRecord,
+  convertOutputFile,
+} from './bundler-files';
 import { LoadResultCache, MemoryLoadResultCache } from './load-result-cache';
-import { SERVER_GENERATED_EXTERNALS, convertOutputFile } from './utils';
 
 export type BundleContextResult =
   | { errors: Message[]; warnings: Message[] }
@@ -38,29 +44,6 @@ export type BundleContextResult =
       externalConfiguration?: string[];
     };
 
-export interface InitialFileRecord {
-  entrypoint: boolean;
-  name?: string;
-  type: 'script' | 'style';
-  external?: boolean;
-  serverFile: boolean;
-  depth: number;
-}
-
-export enum BuildOutputFileType {
-  Browser,
-  Media,
-  ServerApplication,
-  ServerRoot,
-  Root,
-}
-
-export interface BuildOutputFile extends OutputFile {
-  type: BuildOutputFileType;
-  readonly size: number;
-  clone: () => BuildOutputFile;
-}
-
 export type BundlerOptionsFactory<T extends BuildOptions = BuildOptions> = (
   loadCache: LoadResultCache | undefined,
 ) => T;
diff --git a/packages/angular/build/src/tools/esbuild/bundler-execution-result.ts b/packages/angular/build/src/tools/esbuild/bundler-execution-result.ts
index 1ba176287450..bebfd6a3eedd 100644
--- a/packages/angular/build/src/tools/esbuild/bundler-execution-result.ts
+++ b/packages/angular/build/src/tools/esbuild/bundler-execution-result.ts
@@ -11,8 +11,8 @@ import { normalize } from 'node:path';
 import type { ChangedFiles } from '../../tools/esbuild/watcher';
 import type { ComponentStylesheetBundler } from './angular/component-stylesheets';
 import type { SourceFileCache } from './angular/source-file-cache';
-import type { BuildOutputFile, BuildOutputFileType, BundlerContext } from './bundler-context';
-import { createOutputFile } from './utils';
+import type { BundlerContext } from './bundler-context';
+import { type BuildOutputFile, BuildOutputFileType, createOutputFile } from './bundler-files';
 
 export interface BuildOutputAsset {
   source: string;
diff --git a/packages/angular/build/src/tools/esbuild/bundler-files.ts b/packages/angular/build/src/tools/esbuild/bundler-files.ts
new file mode 100644
index 000000000000..ac33d471a395
--- /dev/null
+++ b/packages/angular/build/src/tools/esbuild/bundler-files.ts
@@ -0,0 +1,138 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.dev/license
+ */
+
+import type { OutputFile } from 'esbuild';
+import { createHash } from 'node:crypto';
+
+export interface InitialFileRecord {
+  entrypoint: boolean;
+  name?: string;
+  type: 'script' | 'style';
+  external?: boolean;
+  serverFile: boolean;
+  depth: number;
+}
+
+export enum BuildOutputFileType {
+  Browser,
+  Media,
+  ServerApplication,
+  ServerRoot,
+  Root,
+}
+
+export interface BuildOutputFile extends OutputFile {
+  type: BuildOutputFileType;
+  readonly size: number;
+  clone: () => BuildOutputFile;
+}
+
+export function createOutputFile(
+  path: string,
+  data: string | Uint8Array,
+  type: BuildOutputFileType,
+): BuildOutputFile {
+  if (typeof data === 'string') {
+    let cachedContents: Uint8Array | null = null;
+    let cachedText: string | null = data;
+    let cachedHash: string | null = null;
+
+    return {
+      path,
+      type,
+      get contents(): Uint8Array {
+        cachedContents ??= new TextEncoder().encode(data);
+
+        return cachedContents;
+      },
+      set contents(value: Uint8Array) {
+        cachedContents = value;
+        cachedText = null;
+      },
+      get text(): string {
+        cachedText ??= new TextDecoder('utf-8').decode(this.contents);
+
+        return cachedText;
+      },
+      get size(): number {
+        return this.contents.byteLength;
+      },
+      get hash(): string {
+        cachedHash ??= createHash('sha256')
+          .update(cachedText ?? this.contents)
+          .digest('hex');
+
+        return cachedHash;
+      },
+      clone(): BuildOutputFile {
+        return createOutputFile(this.path, cachedText ?? this.contents, this.type);
+      },
+    };
+  } else {
+    let cachedContents = data;
+    let cachedText: string | null = null;
+    let cachedHash: string | null = null;
+
+    return {
+      get contents(): Uint8Array {
+        return cachedContents;
+      },
+      set contents(value: Uint8Array) {
+        cachedContents = value;
+        cachedText = null;
+      },
+      path,
+      type,
+      get size(): number {
+        return this.contents.byteLength;
+      },
+      get text(): string {
+        cachedText ??= new TextDecoder('utf-8').decode(this.contents);
+
+        return cachedText;
+      },
+      get hash(): string {
+        cachedHash ??= createHash('sha256').update(this.contents).digest('hex');
+
+        return cachedHash;
+      },
+      clone(): BuildOutputFile {
+        return createOutputFile(this.path, this.contents, this.type);
+      },
+    };
+  }
+}
+
+export function convertOutputFile(file: OutputFile, type: BuildOutputFileType): BuildOutputFile {
+  let { contents: cachedContents } = file;
+  let cachedText: string | null = null;
+
+  return {
+    get contents(): Uint8Array {
+      return cachedContents;
+    },
+    set contents(value: Uint8Array) {
+      cachedContents = value;
+      cachedText = null;
+    },
+    hash: file.hash,
+    path: file.path,
+    type,
+    get size(): number {
+      return this.contents.byteLength;
+    },
+    get text(): string {
+      cachedText ??= new TextDecoder('utf-8').decode(this.contents);
+
+      return cachedText;
+    },
+    clone(): BuildOutputFile {
+      return convertOutputFile(this, this.type);
+    },
+  };
+}
diff --git a/packages/angular/build/src/tools/esbuild/i18n-inliner.ts b/packages/angular/build/src/tools/esbuild/i18n-inliner.ts
index fcb439b84c5c..9e17714df807 100644
--- a/packages/angular/build/src/tools/esbuild/i18n-inliner.ts
+++ b/packages/angular/build/src/tools/esbuild/i18n-inliner.ts
@@ -10,9 +10,8 @@ import assert from 'node:assert';
 import { createHash } from 'node:crypto';
 import { extname, join } from 'node:path';
 import { WorkerPool } from '../../utils/worker-pool';
-import { BuildOutputFile, BuildOutputFileType } from './bundler-context';
+import { type BuildOutputFile, BuildOutputFileType, createOutputFile } from './bundler-files';
 import type { LmdbCacheStore } from './lmdb-cache-store';
-import { createOutputFile } from './utils';
 
 /**
  * A keyword used to indicate if a JavaScript file may require inlining of translations.
diff --git a/packages/angular/build/src/tools/esbuild/index-html-generator.ts b/packages/angular/build/src/tools/esbuild/index-html-generator.ts
index 4ccd48f2b595..2fcf56c6aacb 100644
--- a/packages/angular/build/src/tools/esbuild/index-html-generator.ts
+++ b/packages/angular/build/src/tools/esbuild/index-html-generator.ts
@@ -10,7 +10,7 @@ import assert from 'node:assert';
 import path from 'node:path';
 import { NormalizedApplicationBuildOptions } from '../../builders/application/options';
 import { IndexHtmlGenerator } from '../../utils/index-file/index-html-generator';
-import { BuildOutputFile, BuildOutputFileType, InitialFileRecord } from './bundler-context';
+import { BuildOutputFile, BuildOutputFileType, InitialFileRecord } from './bundler-files';
 
 /**
  * The maximum number of module preload link elements that should be added for
diff --git a/packages/angular/build/src/tools/esbuild/utils.ts b/packages/angular/build/src/tools/esbuild/utils.ts
index 2730dafae97c..51eabbbfb84f 100644
--- a/packages/angular/build/src/tools/esbuild/utils.ts
+++ b/packages/angular/build/src/tools/esbuild/utils.ts
@@ -17,17 +17,14 @@ import { coerce } from 'semver';
 import { NormalizedApplicationBuildOptions } from '../../builders/application/options';
 import { OutputMode } from '../../builders/application/schema';
 import { BudgetCalculatorResult } from '../../utils/bundle-calculator';
-import {
-  SERVER_APP_ENGINE_MANIFEST_FILENAME,
-  SERVER_APP_MANIFEST_FILENAME,
-} from '../../utils/server-rendering/manifest';
+
 import { BundleStats, generateEsbuildBuildStatsTable } from '../../utils/stats-table';
-import { BuildOutputFile, BuildOutputFileType, InitialFileRecord } from './bundler-context';
 import {
   BuildOutputAsset,
   ExecutionResult,
   PrerenderedRoutesRecord,
 } from './bundler-execution-result';
+import { type BuildOutputFile, BuildOutputFileType, type InitialFileRecord } from './bundler-files';
 
 export function logBuildStats(
   metafile: Metafile,
@@ -233,111 +230,6 @@ export async function emitFilesToDisk<T = BuildOutputAsset | BuildOutputFile>(
   }
 }
 
-export function createOutputFile(
-  path: string,
-  data: string | Uint8Array,
-  type: BuildOutputFileType,
-): BuildOutputFile {
-  if (typeof data === 'string') {
-    let cachedContents: Uint8Array | null = null;
-    let cachedText: string | null = data;
-    let cachedHash: string | null = null;
-
-    return {
-      path,
-      type,
-      get contents(): Uint8Array {
-        cachedContents ??= new TextEncoder().encode(data);
-
-        return cachedContents;
-      },
-      set contents(value: Uint8Array) {
-        cachedContents = value;
-        cachedText = null;
-      },
-      get text(): string {
-        cachedText ??= new TextDecoder('utf-8').decode(this.contents);
-
-        return cachedText;
-      },
-      get size(): number {
-        return this.contents.byteLength;
-      },
-      get hash(): string {
-        cachedHash ??= createHash('sha256')
-          .update(cachedText ?? this.contents)
-          .digest('hex');
-
-        return cachedHash;
-      },
-      clone(): BuildOutputFile {
-        return createOutputFile(this.path, cachedText ?? this.contents, this.type);
-      },
-    };
-  } else {
-    let cachedContents = data;
-    let cachedText: string | null = null;
-    let cachedHash: string | null = null;
-
-    return {
-      get contents(): Uint8Array {
-        return cachedContents;
-      },
-      set contents(value: Uint8Array) {
-        cachedContents = value;
-        cachedText = null;
-      },
-      path,
-      type,
-      get size(): number {
-        return this.contents.byteLength;
-      },
-      get text(): string {
-        cachedText ??= new TextDecoder('utf-8').decode(this.contents);
-
-        return cachedText;
-      },
-      get hash(): string {
-        cachedHash ??= createHash('sha256').update(this.contents).digest('hex');
-
-        return cachedHash;
-      },
-      clone(): BuildOutputFile {
-        return createOutputFile(this.path, this.contents, this.type);
-      },
-    };
-  }
-}
-
-export function convertOutputFile(file: OutputFile, type: BuildOutputFileType): BuildOutputFile {
-  let { contents: cachedContents } = file;
-  let cachedText: string | null = null;
-
-  return {
-    get contents(): Uint8Array {
-      return cachedContents;
-    },
-    set contents(value: Uint8Array) {
-      cachedContents = value;
-      cachedText = null;
-    },
-    hash: file.hash,
-    path: file.path,
-    type,
-    get size(): number {
-      return this.contents.byteLength;
-    },
-    get text(): string {
-      cachedText ??= new TextDecoder('utf-8').decode(this.contents);
-
-      return cachedText;
-    },
-    clone(): BuildOutputFile {
-      return convertOutputFile(this, this.type);
-    },
-  };
-}
-
 /**
  * Transform browserlists result to esbuild target.
  * @see https://esbuild.github.io/api/#target
@@ -486,17 +378,3 @@ export function getEntryPointName(entryPoint: string): string {
     .replace(/\.[cm]?[jt]s$/, '')
     .replace(/[\\/.]/g, '-');
 }
-
-/**
- * A set of server-generated dependencies that are treated as external.
- *
- * These dependencies are marked as external because they are produced by a
- * separate bundling process and are not included in the primary bundle. This
- * ensures that these generated files are resolved from an external source rather
- * than being part of the main bundle.
- */
-export const SERVER_GENERATED_EXTERNALS = new Set([
-  './polyfills.server.mjs',
-  './' + SERVER_APP_MANIFEST_FILENAME,
-  './' + SERVER_APP_ENGINE_MANIFEST_FILENAME,
-]);
diff --git a/packages/angular/build/src/utils/server-rendering/manifest.ts b/packages/angular/build/src/utils/server-rendering/manifest.ts
index 41e40d3d1dd5..bd294b1e7e4b 100644
--- a/packages/angular/build/src/utils/server-rendering/manifest.ts
+++ b/packages/angular/build/src/utils/server-rendering/manifest.ts
@@ -10,12 +10,29 @@ import type { Metafile } from 'esbuild';
 import { extname } from 'node:path';
 import { runInThisContext } from 'node:vm';
 import { NormalizedApplicationBuildOptions } from '../../builders/application/options';
-import { type BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-context';
-import { createOutputFile } from '../../tools/esbuild/utils';
+import {
+  type BuildOutputFile,
+  BuildOutputFileType,
+  createOutputFile,
+} from '../../tools/esbuild/bundler-files';
 
 export const SERVER_APP_MANIFEST_FILENAME = 'angular-app-manifest.mjs';
 export const SERVER_APP_ENGINE_MANIFEST_FILENAME = 'angular-app-engine-manifest.mjs';
 
+/**
+ * A set of server-generated dependencies that are treated as external.
+ *
+ * These dependencies are marked as external because they are produced by a
+ * separate bundling process and are not included in the primary bundle. This
+ * ensures that these generated files are resolved from an external source rather
+ * than being part of the main bundle.
+ */
+export const SERVER_GENERATED_EXTERNALS = new Set([
+  './polyfills.server.mjs',
+  './' + SERVER_APP_MANIFEST_FILENAME,
+  './' + SERVER_APP_ENGINE_MANIFEST_FILENAME,
+]);
+
 interface FilesMapping {
   path: string;
   dynamicImport: boolean;
diff --git a/packages/angular/build/src/utils/server-rendering/prerender.ts b/packages/angular/build/src/utils/server-rendering/prerender.ts
index 1033a7575f88..b4f81f03a800 100644
--- a/packages/angular/build/src/utils/server-rendering/prerender.ts
+++ b/packages/angular/build/src/utils/server-rendering/prerender.ts
@@ -10,8 +10,8 @@ import { readFile } from 'node:fs/promises';
 import { extname, posix } from 'node:path';
 import { NormalizedApplicationBuildOptions } from '../../builders/application/options';
 import { OutputMode } from '../../builders/application/schema';
-import { BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-context';
 import { BuildOutputAsset } from '../../tools/esbuild/bundler-execution-result';
+import { BuildOutputFile, BuildOutputFileType } from '../../tools/esbuild/bundler-files';
 import { assertIsError } from '../error';
 import { toPosixPath } from '../path';
 import { addLeadingSlash, addTrailingSlash, joinUrlParts, stripLeadingSlash } from '../url';
diff --git a/packages/angular/build/src/utils/service-worker.ts b/packages/angular/build/src/utils/service-worker.ts
index 3c8b4cbe6b63..ab8f058003db 100644
--- a/packages/angular/build/src/utils/service-worker.ts
+++ b/packages/angular/build/src/utils/service-worker.ts
@@ -12,8 +12,8 @@ import type { Config, Filesystem } from '@angular/service-worker/config' with {
 import * as crypto from 'node:crypto';
 import { existsSync, promises as fsPromises } from 'node:fs';
 import * as path from 'node:path';
-import { BuildOutputFile, BuildOutputFileType } from '../tools/esbuild/bundler-context';
 import { BuildOutputAsset } from '../tools/esbuild/bundler-execution-result';
+import { BuildOutputFile, BuildOutputFileType } from '../tools/esbuild/bundler-files';
 import { assertIsError } from './error';
 import { toPosixPath } from './path';
 
diff --git a/packages/angular/build/src/utils/test-files.ts b/packages/angular/build/src/utils/test-files.ts
index 522bb1e778c0..d5f0edb2815d 100644
--- a/packages/angular/build/src/utils/test-files.ts
+++ b/packages/angular/build/src/utils/test-files.ts
@@ -9,7 +9,7 @@
 import * as fs from 'node:fs/promises';
 import path from 'node:path';
 import { ResultFile } from '../builders/application/results';
-import { BuildOutputFileType } from '../tools/esbuild/bundler-context';
+import { BuildOutputFileType } from '../tools/esbuild/bundler-files';
 import { emitFilesToDisk } from '../tools/esbuild/utils';
 
 /**