diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index 7895dad..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1 +0,0 @@
-test/XMLHttpRequest.cjs
diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 774eb47..1a4846b 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -24,6 +24,7 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - run: npm ci
     - run: npm i ol@${{ matrix.ol-version }}
+    - run: npm run lint
     - run: npm run build
     - run: npm test
 
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..fcaa29c
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,81 @@
+import mocha from 'eslint-plugin-mocha';
+import globals from 'globals';
+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 [{
+    ignores: ['test/XMLHttpRequest.cjs'],
+},
+...compat.extends(
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+).map(config => ({
+    ...config,
+    files: ['**/*.ts'],
+})),
+{
+    plugins: {
+        mocha,
+    },
+
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.commonjs,
+            ...globals.node,
+            ...globals.mocha,
+        },
+
+        ecmaVersion: 2017,
+        sourceType: 'module',
+    },
+
+    rules: {
+        'no-unused-vars': 'off',
+
+        '@typescript-eslint/no-unused-vars': ['warn', {
+            argsIgnorePattern: '^_',
+            varsIgnorePattern: '^_',
+            caughtErrorsIgnorePattern: '^_',
+        }],
+
+        quotes: ['error', 'single'],
+        semi: ['error', 'always'],
+        'mocha/no-exclusive-tests': 'error',
+    },
+
+    files: ['**/*.ts'],
+},
+...compat.extends('eslint:recommended').map(config => ({
+    ...config,
+    files: ['**/*.js', '**/*.cjs'],
+})),
+{
+    files: ['test/*.ts'],
+
+    rules: {
+        '@typescript-eslint/no-unused-expressions': 'off',
+    },
+},
+{
+    files: ['**/*.cjs'],
+
+    languageOptions: {
+        sourceType: 'commonjs',
+    },
+
+    rules: {
+        '@typescript-eslint/no-require-imports': 'off'
+    },
+}];
diff --git a/package-lock.json b/package-lock.json
index 738e69b..c7c428f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,8 @@
         "sqlite-wasm-http": "^1.2.0"
       },
       "devDependencies": {
+        "@eslint/eslintrc": "^3.1.0",
+        "@eslint/js": "^9.11.0",
         "@rollup/plugin-typescript": "^11.1.5",
         "@types/chai": "^4.3.11",
         "@types/chai-spies": "^1.0.6",
@@ -36,6 +38,7 @@
         "eslint": "^9.8.0",
         "eslint-plugin-mocha": "^10.2.0",
         "gh-pages": "^6.1.1",
+        "globals": "^15.9.0",
         "html-loader": "^5.0.0",
         "html-webpack-plugin": "^5.6.0",
         "link": "^2.1.0",
@@ -60,7 +63,7 @@
         "node": ">=18.0.0"
       },
       "peerDependencies": {
-        "ol": ">=10.0.0<10.3.0"
+        "ol": ">=10.0.0 <10.3.0"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -3788,6 +3791,21 @@
         "eslint": ">=7.0.0"
       }
     },
+    "node_modules/eslint-plugin-mocha/node_modules/globals": {
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "dev": true,
+      "dependencies": {
+        "type-fest": "^0.20.2"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/eslint-scope": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.1.tgz",
@@ -4587,15 +4605,12 @@
       "dev": true
     },
     "node_modules/globals": {
-      "version": "13.24.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
-      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "version": "15.9.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-15.9.0.tgz",
+      "integrity": "sha512-SmSKyLLKFbSr6rptvP8izbyxJL4ILwqO9Jg23UA0sDlGlu58V59D1//I3vlc0KJphVdUR7vMjHIplYnzBxorQA==",
       "dev": true,
-      "dependencies": {
-        "type-fest": "^0.20.2"
-      },
       "engines": {
-        "node": ">=8"
+        "node": ">=18"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
diff --git a/package.json b/package.json
index 1b378a0..055535b 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,8 @@
     "ol": ">=10.0.0 <10.3.0"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.11.0",
     "@rollup/plugin-typescript": "^11.1.5",
     "@types/chai": "^4.3.11",
     "@types/chai-spies": "^1.0.6",
@@ -69,6 +71,7 @@
     "eslint": "^9.8.0",
     "eslint-plugin-mocha": "^10.2.0",
     "gh-pages": "^6.1.1",
+    "globals": "^15.9.0",
     "html-loader": "^5.0.0",
     "html-webpack-plugin": "^5.6.0",
     "link": "^2.1.0",