diff --git a/.gitignore b/.gitignore
index eb979909..ef9f96bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@ _brisa
 **/out/*
 **/out-*/*
 **/dist/*
+**/build-utils/create-deno-json/deno.json
 **/.temp-test-files/*
 packages/brisa/index.js
 packages/brisa/out
diff --git a/packages/brisa/src/build-utils/README.md b/packages/brisa/src/build-utils/README.md
new file mode 100644
index 00000000..077f958b
--- /dev/null
+++ b/packages/brisa/src/build-utils/README.md
@@ -0,0 +1,5 @@
+# Brisa build utils
+
+This folder is made to move all the `utils` we currently have that are related to the building of the brisa here so that it is easier to maintain and understand.
+
+We are going to do this migration gradually, so as not to break anything, if you want to contribute to this task, it will be very well received.
diff --git a/packages/brisa/src/build-utils/create-deno-json/index.test.ts b/packages/brisa/src/build-utils/create-deno-json/index.test.ts
new file mode 100644
index 00000000..f19c92bc
--- /dev/null
+++ b/packages/brisa/src/build-utils/create-deno-json/index.test.ts
@@ -0,0 +1,103 @@
+import { describe, it, expect, beforeEach, afterEach } from 'bun:test';
+import fs from 'node:fs';
+import path from 'node:path';
+import { createDenoJSON } from '.';
+
+describe('createDenoJSON', () => {
+  beforeEach(() => {
+    globalThis.mockConstants = {
+      BUILD_DIR: import.meta.dirname,
+      ROOT_DIR: import.meta.dirname,
+      SRC_DIR: import.meta.dirname,
+    };
+  });
+
+  afterEach(() => {
+    delete globalThis.mockConstants;
+    fs.rmSync(path.join(import.meta.dirname, 'deno.json'));
+  });
+
+  it('should create the default deno.json file when no existing one', () => {
+    createDenoJSON();
+    expect(
+      JSON.parse(
+        fs.readFileSync(path.join(import.meta.dirname, 'deno.json'), 'utf-8'),
+      ),
+    ).toEqual({
+      imports: {
+        'fs/promises': 'node:fs/promises',
+        path: 'node:path',
+      },
+      permissions: {
+        read: true,
+        write: true,
+        run: 'inherit',
+      },
+    });
+  });
+
+  it('should merge with the existing deno.json file in the root directory', () => {
+    // Ensure is not taking src dir
+    globalThis.mockConstants!.SRC_DIR = path.join(import.meta.dirname, 'src');
+    fs.writeFileSync(
+      path.join(import.meta.dirname, 'deno.json'),
+      JSON.stringify({
+        permissions: {
+          read: false,
+        },
+      }),
+    );
+    createDenoJSON();
+    expect(
+      JSON.parse(
+        fs.readFileSync(path.join(import.meta.dirname, 'deno.json'), 'utf-8'),
+      ),
+    ).toEqual({
+      imports: {
+        'fs/promises': 'node:fs/promises',
+        path: 'node:path',
+      },
+      permissions: {
+        read: false,
+        write: true,
+        run: 'inherit',
+      },
+    });
+  });
+
+  it('should merge with the existing deno.json file in the src directory', () => {
+    // Ensure is taking src dir
+    globalThis.mockConstants!.ROOT_DIR = path.join(
+      import.meta.dirname,
+      'not-exist',
+    );
+
+    fs.writeFileSync(
+      path.join(import.meta.dirname, 'deno.json'),
+      JSON.stringify({
+        imports: {
+          cluster: 'node:cluster',
+        },
+        foo: 'bar',
+      }),
+    );
+    createDenoJSON();
+    expect(
+      JSON.parse(
+        fs.readFileSync(path.join(import.meta.dirname, 'deno.json'), 'utf-8'),
+      ),
+    ).toEqual({
+      foo: 'bar',
+      imports: {
+        'fs/promises': 'node:fs/promises',
+        path: 'node:path',
+        cluster: 'node:cluster',
+      },
+      permissions: {
+        read: true,
+        write: true,
+        run: 'inherit',
+      },
+    });
+  });
+});
diff --git a/packages/brisa/src/build-utils/create-deno-json/index.ts b/packages/brisa/src/build-utils/create-deno-json/index.ts
new file mode 100644
index 00000000..c66611c1
--- /dev/null
+++ b/packages/brisa/src/build-utils/create-deno-json/index.ts
@@ -0,0 +1,63 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { getConstants } from '@/constants';
+
+export function createDenoJSON() {
+  const { BUILD_DIR } = getConstants();
+  const denoJSON = getDenoJSON();
+  fs.writeFileSync(
+    path.join(BUILD_DIR, 'deno.json'),
+    JSON.stringify(denoJSON, null, 2),
+  );
+}
+
+function getDenoJSON() {
+  const { ROOT_DIR, SRC_DIR } = getConstants();
+  const defaultDenoJSON = {
+    imports: {
+      'fs/promises': 'node:fs/promises',
+      path: 'node:path',
+    },
+    permissions: {
+      read: true,
+      write: true,
+      run: 'inherit',
+    },
+  };
+
+  if (fs.existsSync(path.join(ROOT_DIR, 'deno.json'))) {
+    const denoJSON = JSON.parse(
+      fs.readFileSync(path.join(ROOT_DIR, 'deno.json'), 'utf-8'),
+    );
+    return {
+      ...denoJSON,
+      imports: {
+        ...defaultDenoJSON.imports,
+        ...denoJSON.imports,
+      },
+      permissions: {
+        ...defaultDenoJSON.permissions,
+        ...denoJSON.permissions,
+      },
+    };
+  }
+
+  if (fs.existsSync(path.join(SRC_DIR, 'deno.json'))) {
+    const denoJSON = JSON.parse(
+      fs.readFileSync(path.join(SRC_DIR, 'deno.json'), 'utf-8'),
+    );
+    return {
+      ...denoJSON,
+      imports: {
+        ...defaultDenoJSON.imports,
+        ...denoJSON.imports,
+      },
+      permissions: {
+        ...defaultDenoJSON.permissions,
+        ...denoJSON.permissions,
+      },
+    };
+  }
+
+  return defaultDenoJSON;
+}
diff --git a/packages/brisa/src/cli/build.test.ts b/packages/brisa/src/cli/build.test.ts
index cc885054..49cc2787 100644
--- a/packages/brisa/src/cli/build.test.ts
+++ b/packages/brisa/src/cli/build.test.ts
@@ -325,5 +325,125 @@ describe('cli', () => {
       await build();
       expect(mockLog).not.toHaveBeenCalled();
     });
+
+    it('should NOT create deno.json when output is "bun" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'bun',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "node" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'bun',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "static" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'static',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "ios" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'ios',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "android" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'android',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "desktop" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'desktop',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should NOT create deno.json when output is "deno" in development', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'deno',
+        },
+        IS_PRODUCTION: false,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeFalse();
+    });
+
+    it('should create deno.json when output is "deno" in production', async () => {
+      globalThis.mockConstants = {
+        ...(getConstants() ?? {}),
+        BUILD_DIR,
+        BRISA_DIR,
+        CONFIG: {
+          output: 'deno',
+        },
+        IS_PRODUCTION: true,
+      };
+
+      await build();
+      expect(fs.existsSync(path.join(BUILD_DIR, 'deno.json'))).toBeTrue();
+    });
   });
 });
diff --git a/packages/brisa/src/cli/build.ts b/packages/brisa/src/cli/build.ts
index d662652b..d0dc1e5a 100644
--- a/packages/brisa/src/cli/build.ts
+++ b/packages/brisa/src/cli/build.ts
@@ -7,6 +7,7 @@ import { logTable, generateStaticExport } from './build-utils';
 import compileBrisaInternalsToDoBuildPortable from '@/utils/compile-serve-internals-into-build';
 import { log } from '@/utils/log/log-build';
 import runtimeVersion from '@/utils/runtime-version';
+import { createDenoJSON } from '@/build-utils/create-deno-json';
 
 const outputText = {
   bun: 'Bun.js Web Service App',
@@ -128,6 +129,10 @@ export default async function build() {
 
   await compileBrisaInternalsToDoBuildPortable();
 
+  if (IS_PRODUCTION && CONFIG.output === 'deno') {
+    createDenoJSON();
+  }
+
   if (IS_PRODUCTION && CONFIG.outputAdapter) {
     log(LOG_PREFIX.WAIT, `Adapting output to ${CONFIG.outputAdapter.name}...`);
     await CONFIG.outputAdapter.adapt(constants, generated);