diff --git a/tools/localization/.eslintrc.js b/tools/localization/.eslintrc.js
deleted file mode 100644
index d3dd495cce9d..000000000000
--- a/tools/localization/.eslintrc.js
+++ /dev/null
@@ -1,20 +0,0 @@
-module.exports = {
-    env: {
-        es2021: true,
-        node: true,
-    },
-    extends: [
-        "eslint:recommended",
-        "plugin:@typescript-eslint/recommended",
-        "prettier",
-    ],
-    parser: "@typescript-eslint/parser",
-    parserOptions: {
-        ecmaVersion: "latest",
-        sourceType: "module",
-    },
-    plugins: ["@typescript-eslint"],
-    rules: {
-        "no-useless-escape": 0,
-    },
-};
diff --git a/tools/localization/eslint.config.mjs b/tools/localization/eslint.config.mjs
new file mode 100644
index 000000000000..72a15fae01e4
--- /dev/null
+++ b/tools/localization/eslint.config.mjs
@@ -0,0 +1,43 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all,
+});
+
+export default [
+    ...compat.extends(
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended",
+        "prettier",
+    ),
+    {
+        files: ["**/*.js", "**/*.jsx", "**/*.ts", "**/*.tsx"],
+        plugins: {
+            "@typescript-eslint": typescriptEslint,
+        },
+
+        languageOptions: {
+            globals: {
+                ...globals.node,
+            },
+
+            parser: tsParser,
+            ecmaVersion: "latest",
+            sourceType: "module",
+        },
+
+        rules: {
+            "no-useless-escape": 0,
+        },
+    },
+];
diff --git a/tools/localization/package.json b/tools/localization/package.json
index bb8c8516c14e..c2562feecd3c 100644
--- a/tools/localization/package.json
+++ b/tools/localization/package.json
@@ -9,7 +9,7 @@
         "start": "node ./dist/index.js",
         "dev": "tsc --watch",
         "format": "npx prettier --write .",
-        "lint": "eslint src/ --ext .js,.jsx,.ts,.tsx --max-warnings=0",
+        "lint": "eslint src/ --max-warnings=0",
         "test": "jest --passWithNoTests"
     },
     "repository": "https://github.com/ankidroid/Anki-Android",
@@ -23,16 +23,19 @@
         "typescript": "^5.3.3"
     },
     "devDependencies": {
+        "@eslint/eslintrc": "^3.1.0",
+        "@eslint/js": "^9.8.0",
         "@types/jest": "^29.5.12",
-        "@types/node": "^20.11.18",
-        "@typescript-eslint/eslint-plugin": "^7.0.0",
-        "@typescript-eslint/parser": "^7.0.1",
-        "eslint": "^8.56.0",
+        "@types/node": "^22.1.0",
+        "@typescript-eslint/eslint-plugin": "^8.0.0",
+        "@typescript-eslint/parser": "^8.0.0",
+        "eslint": "^9.8.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-config-standard": "^17.1.0",
         "eslint-plugin-import": "^2.29.1",
         "eslint-plugin-n": "^17.2.1",
-        "eslint-plugin-promise": "^6.1.1",
+        "eslint-plugin-promise": "^7.0.0",
+        "globals": "^15.9.0",
         "jest": "^29.7.0",
         "prettier": "^3.2.5",
         "ts-jest": "^29.1.2",