diff --git a/.clang-format-ignore b/.clang-format-ignore
new file mode 100644
index 00000000000..c955f0ad4d5
--- /dev/null
+++ b/.clang-format-ignore
@@ -0,0 +1,6 @@
+packages/react-native/React/I18n/FBXXHashUtils.h
+packages/react-native/ReactAndroid/src/main/jni/first-party/yogajni/**
+packages/react-native/ReactAndroid/src/main/jni/third-party/**
+packages/react-native/ReactCommon/**/platform/windows/third-party/**
+packages/react-native/ReactCommon/jsi/jsi/**
+packages/react-native/ReactCommon/yoga/**
diff --git a/package.json b/package.json
index 6170f7f2a32..b9e9c8c3f42 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "build-android": "./gradlew :packages:react-native:ReactAndroid:build",
     "build": "node ./scripts/build/build.js",
     "build-types": "node ./scripts/js-api/build-types",
-    "clang-format": "clang-format -i --glob=*/**/*.{h,cpp,m,mm}",
+    "clang-format": "node ./scripts/clang-format.js",
     "clean": "node ./scripts/build/clean.js",
     "cxx-api-build": "python -m scripts.cxx-api.parser",
     "cxx-api-validate": "python -m scripts.cxx-api.parser --validate",
@@ -70,7 +70,6 @@
     "babel-plugin-minify-dead-code-elimination": "^0.5.2",
     "babel-plugin-transform-define": "^2.1.4",
     "babel-plugin-transform-flow-enums": "^0.0.2",
-    "clang-format": "^1.8.0",
     "connect": "^3.6.5",
     "debug": "^4.4.0",
     "deep-equal": "1.1.1",
diff --git a/scripts/clang-format b/scripts/clang-format
new file mode 100755
index 00000000000..d86751f1e84
--- /dev/null
+++ b/scripts/clang-format
@@ -0,0 +1,77 @@
+#!/usr/bin/env dotslash
+
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+//
+// This source code is licensed under the MIT license found in the
+// LICENSE file in the root directory of this source tree.
+
+{
+  "name": "clang-format 21.1.2",
+  "platforms": {
+    "linux-aarch64": {
+      "size": 1725525,
+      "hash": "sha256",
+      "digest": "f66d2bcf98df1373df6ab4544a2b881e9816985b606e1144e4c77dc8ac87b826",
+      "providers": [
+        {
+          "type": "http",
+          "url": "https://files.pythonhosted.org/packages/c5/83/61fadfa8d62a288d778e0a1ad2f73b01abca64574ee34c5d6d078e0821da/clang_format-21.1.2-py2.py3-none-manylinux_2_26_aarch64.manylinux_2_28_aarch64.whl"
+        }
+      ],
+      "format": "zip",
+      "path": "clang_format/data/bin/clang-format"
+    },
+    "linux-x86_64": {
+      "size": 1805060,
+      "hash": "sha256",
+      "digest": "6d7caf74fe89154258ddfd63984c98ffe902ef98f013ac517178fc44d72861ff",
+      "providers": [
+        {
+          "type": "http",
+          "url": "https://files.pythonhosted.org/packages/fb/ac/3c04772acc0257f5730e83adb542b2603c1a62d1315010ab593a980af404/clang_format-21.1.2-py2.py3-none-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl"
+        }
+      ],
+      "format": "zip",
+      "path": "clang_format/data/bin/clang-format"
+    },
+    "macos-aarch64": {
+      "size": 1458874,
+      "hash": "sha256",
+      "digest": "fc034652dee24583633177d800bc9deebcc9c65eb7ab53b25bbd0fbd443392a9",
+      "providers": [
+        {
+          "type": "http",
+          "url": "https://files.pythonhosted.org/packages/ba/90/b8230efcff90a8543da3fb7fc09d7077afebaba019eceb1686d4db94cac3/clang_format-21.1.2-py2.py3-none-macosx_11_0_arm64.whl"
+        }
+      ],
+      "format": "zip",
+      "path": "clang_format/data/bin/clang-format"
+    },
+    "macos-x86_64": {
+      "size": 1440163,
+      "hash": "sha256",
+      "digest": "00498efb43d60d7ac4195362009a79936d26145a9a90cdfa7a6013a62ab3c40c",
+      "providers": [
+        {
+          "type": "http",
+          "url": "https://files.pythonhosted.org/packages/7d/97/0bb5a6866dfb5f55f7e6ca79466cb0b0081fccbc9f57887949ff23b5c38a/clang_format-21.1.2-py2.py3-none-macosx_10_9_x86_64.whl"
+        }
+      ],
+      "format": "zip",
+      "path": "clang_format/data/bin/clang-format"
+    },
+    "windows-x86_64": {
+      "size": 1426244,
+      "hash": "sha256",
+      "digest": "c98e195a50c0fa40bb058449511b1b681ca7ad553579aa32425f0cfeca8d81ce",
+      "providers": [
+        {
+          "type": "http",
+          "url": "https://files.pythonhosted.org/packages/fe/0d/3b9c6a41a9eed2d45431d91c0e8608da315cd44d0c24c517bfb686db4b6b/clang_format-21.1.2-py2.py3-none-win_amd64.whl"
+        }
+      ],
+      "format": "zip",
+      "path": "clang_format/data/bin/clang-format.exe"
+    }
+  }
+}
diff --git a/scripts/clang-format.js b/scripts/clang-format.js
new file mode 100644
index 00000000000..abdf8c81df4
--- /dev/null
+++ b/scripts/clang-format.js
@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @noflow
+ * @format
+ */
+
+'use strict';
+
+const dotslash = require('fb-dotslash');
+const {spawnSync} = require('node:child_process');
+const fs = require('node:fs');
+const path = require('node:path');
+const {globSync} = require('tinyglobby');
+
+const REPO_ROOT = path.resolve(__dirname, '..');
+const CLANG_FORMAT = path.join(__dirname, 'clang-format');
+const GENERATED_MARKER = Buffer.from('@' + 'generated');
+const MAX_HEADER_BYTES = 4096;
+const MAX_FILES_PER_PROCESS = 30;
+
+/** @param {string} file */
+function isGenerated(file) {
+  let fd;
+  try {
+    fd = fs.openSync(path.resolve(REPO_ROOT, file), 'r');
+    const header = Buffer.alloc(MAX_HEADER_BYTES);
+    const bytesRead = fs.readSync(fd, header, 0, header.length, 0);
+    return header.subarray(0, bytesRead).includes(GENERATED_MARKER);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    throw new Error(`Unable to inspect ${file}: ${message}`, {cause: error});
+  } finally {
+    if (fd != null) {
+      fs.closeSync(fd);
+    }
+  }
+}
+
+function main() {
+  const files =
+    process.argv.length > 2
+      ? process.argv.slice(2)
+      : globSync('*/**/*.{h,cpp,m,mm}', {cwd: REPO_ROOT});
+  const sourceFiles = files.filter(file => !isGenerated(file));
+
+  for (let i = 0; i < sourceFiles.length; i += MAX_FILES_PER_PROCESS) {
+    const result = spawnSync(
+      dotslash,
+      [CLANG_FORMAT, '-i', ...sourceFiles.slice(i, i + MAX_FILES_PER_PROCESS)],
+      {
+        cwd: REPO_ROOT,
+        stdio: 'inherit',
+      },
+    );
+
+    if (result.error != null) {
+      throw result.error;
+    }
+    if (result.signal != null) {
+      process.kill(process.pid, result.signal);
+      return;
+    }
+    if (result.status !== 0) {
+      process.exit(result.status ?? 1);
+    }
+  }
+}
+
+main();
diff --git a/yarn.lock b/yarn.lock
index bb5f5e4f93a..fdc76eff84a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2912,11 +2912,6 @@ async-limiter@~1.0.0:
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
   integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
 
-async@^3.2.3:
-  version "3.2.6"
-  resolved "https://registry.yarnpkg.com/async/-/async-3.2.6.tgz#1b0728e14929d51b85b449b7f06e27c1145e38ce"
-  integrity sha512-htCUDlxyyCLMgaM3xXg0C0LW2xqfuQ6p05pCEIsXuyQ+a1koYKTuBMzRNwmybfLgvJDMd0r1LTn4+E0Ti6C2AA==
-
 author-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/author-regex/-/author-regex-1.0.0.tgz#d08885be6b9bbf9439fe087c76287245f0a81450"
@@ -3322,15 +3317,6 @@ cjs-module-lexer@^1.0.0:
   resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-1.4.0.tgz#677de7ed7efff67cc40c9bf1897fea79d41b5215"
   integrity sha512-N1NGmowPlGBLsOZLPvm48StN04V4YvQRL0i6b7ctrVY3epjP/ct7hFLOItz6pDIvRjwpfPxi52a2UWV2ziir8g==
 
-clang-format@^1.8.0:
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/clang-format/-/clang-format-1.8.0.tgz#7779df1c5ce1bc8aac1b0b02b4e479191ef21d46"
-  integrity sha512-pK8gzfu55/lHzIpQ1givIbWfn3eXnU7SfxqIwVgnn5jEM6j4ZJYjpFqFs4iSBPNedzRMmfjYjuQhu657WAXHXw==
-  dependencies:
-    async "^3.2.3"
-    glob "^7.0.0"
-    resolve "^1.1.6"
-
 cli-cursor@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-3.1.0.tgz#264305a7ae490d1d03bf0c9ba7c925d1753af307"