diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..06494359
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,37 @@
+##
+# The MIT License (MIT)
+#
+# Copyright (c) 2016-2020 Mickael Jeanroy
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+##
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+
+# Indentation override for all JS under lib directory
+[*.{js,ts,json,yml}]
+indent_style = space
+indent_size = 2
diff --git a/.eslintrc b/.eslintrc
index 0be93798..dd04bfac 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -26,5 +26,33 @@
         "object": "object"
       }
     }]
-  }
+  },
+  "overrides": [
+    {
+      "files": [
+        "**/*.ts"
+      ],
+      "env": {
+        "browser": true,
+        "es6": true,
+        "node": false
+      },
+      "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/eslint-recommended",
+        "plugin:@typescript-eslint/recommended"
+      ],
+      "parser": "@typescript-eslint/parser",
+      "plugins": [
+        "@typescript-eslint"
+      ],
+      "rules": {
+        "indent": ["error", 2],
+        "linebreak-style": ["error", "unix"],
+        "quotes": ["error", "single"],
+        "comma-dangle": ["error", "always-multiline"],
+        "@typescript-eslint/no-explicit-any": 0
+      }
+    }
+  ]
 }
diff --git a/.gitattributes b/.gitattributes
index 6feedd31..27f14a4b 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -23,4 +23,5 @@
 ##
 
 *.js text eol=lf
+*.ts text eol=lf
 *.txt text eol=lf
diff --git a/.gitignore b/.gitignore
index 7553df98..cd2f309a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@
 /dist
 /npm-debug.log
 /package-lock.json
+/.idea
diff --git a/package.json b/package.json
index 85dce6d4..a0bef7fe 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,8 @@
     "@rollup/plugin-babel": "5.3.0",
     "@rollup/plugin-commonjs": "17.1.0",
     "@rollup/plugin-node-resolve": "11.2.0",
+    "@typescript-eslint/parser": "4.17.0",
+    "@typescript-eslint/eslint-plugin": "4.17.0",
     "babel-plugin-add-module-exports": "1.0.4",
     "eslint": "7.21.0",
     "eslint-config-google": "0.14.0",
@@ -70,7 +72,8 @@
     "rollup": "2.41.1",
     "rollup-plugin-prettier": "2.1.0",
     "rollup-plugin-strip-banner": "2.0.0",
-    "tmp": "0.2.1"
+    "tmp": "0.2.1",
+    "typescript": "4.2.3"
   },
   "engines": {
     "node": ">=10.0.0"
diff --git a/scripts/lint/index.js b/scripts/lint/index.js
index 4eb18526..2e00c859 100644
--- a/scripts/lint/index.js
+++ b/scripts/lint/index.js
@@ -41,6 +41,11 @@ module.exports = function lint() {
     path.join(config.src, '**', '*.js'),
     path.join(config.test, '**', '*.js'),
     path.join(config.scripts, '**', '*.js'),
+
+    path.join(config.root, '*.ts'),
+    path.join(config.src, '**', '*.ts'),
+    path.join(config.test, '**', '*.ts'),
+    path.join(config.scripts, '**', '*.ts'),
   ];
 
   log.debug('Linting files: ');
diff --git a/src/index.d.ts b/src/index.d.ts
index 5a0e2b1e..edded30b 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -22,7 +22,7 @@
  * SOFTWARE.
  */
 
-import type { Plugin } from "rollup";
+import type {Plugin} from 'rollup';
 
 export interface Person {
   readonly name: string,
@@ -33,18 +33,17 @@ export interface Person {
    * Turns the person into a formatted string
    * @returns formatted person info
    */
-  text: ()=> string,
+  text: () => string,
 }
 
-export type CommentStyle = "regular" | "ignored" | "slash";
+export type CommentStyle = 'regular' | 'ignored' | 'slash';
 
 export type Banner = string | {
   /**
    * @see {@link https://github.com/mjeanroy/rollup-plugin-license#comment-style}
    */
   commentStyle?: CommentStyle,
-  content: string | (()=> string) | {
-
+  content: string | (() => string) | {
     /**
      * File to get banner content from
      */
@@ -55,7 +54,7 @@ export type Banner = string | {
      */
     encoding?: string,
   },
-  data?: {[key: string]: string} | (()=> {[key: string]: string}),
+  data?: { [key: string]: string } | (() => { [key: string]: string }),
 };
 
 /**
@@ -97,10 +96,10 @@ export interface Dependency {
    * Turns the dependency into a formatted string
    * @returns formatted dependency license info
    */
-  text: ()=> string,
+  text: () => string,
 }
 
-export type ThirdPartyOutput = string | ((dependencies: Dependency[])=> void) | {
+export type ThirdPartyOutput = string | ((dependencies: Dependency[]) => void) | {
 
   /**
    * Name of file to write licenses to
@@ -120,7 +119,7 @@ export type ThirdPartyOutput = string | ((dependencies: Dependency[])=> void) |
    *          `${dependency.name}:${dependency.version} -- ${dependency.license}`).join('\n')
    *      );
    * },
-   * 
+   *
    * // Lodash template that can be defined to customize report output
    * template: `
    *      <% _.forEach(dependencies, function (dependency) { %>
@@ -128,10 +127,10 @@ export type ThirdPartyOutput = string | ((dependencies: Dependency[])=> void) |
    *      <% }) %>
    * `
    */
-  template?: ((dependencies: Dependency[])=> string) | string,
+  template?: ((dependencies: Dependency[]) => string) | string,
 };
 
-export type ThirdParty = ((dependencies: Dependency[])=> void) | {
+export type ThirdParty = ((dependencies: Dependency[]) => void) | {
   /**
    * If private dependencies should be allowed (`private: true` in package.json)
    * @default false
@@ -144,33 +143,32 @@ export type ThirdParty = ((dependencies: Dependency[])=> void) | {
    * licenses, simply define the restriction such as:
    * @example
    * {allow: '(MIT OR Apache-2.0)'}
-   * 
+   *
    * allow(dependency) {
    *      return dependency.license === 'MIT';
    * }
    */
-  allow?: string | ((dependency: Dependency)=> boolean) | {
-
-      /**
-       * Testing if the license if valid
-       */
-      test: string | ((dependency: Dependency)=> boolean),
+  allow?: string | ((dependency: Dependency) => boolean) | {
+    /**
+     * Testing if the license if valid
+     */
+    test: string | ((dependency: Dependency) => boolean),
 
-      /**
-       * Fail if a dependency does not specify any licenses
-       * @default false
-       */
-      failOnUnlicensed?: boolean,
+    /**
+     * Fail if a dependency does not specify any licenses
+     * @default false
+     */
+    failOnUnlicensed?: boolean,
 
-      /**
-       * Fail if a dependency specify a license that does not match given requirement
-       * @default false
-       */
-      failOnViolation?: boolean,
+    /**
+     * Fail if a dependency specify a license that does not match given requirement
+     * @default false
+     */
+    failOnViolation?: boolean,
   },
 
   /**
-   * Output file for 
+   * Output file for
    */
   output: ThirdPartyOutput | ThirdPartyOutput[],
 };
@@ -205,4 +203,4 @@ export type Options = {
 
 declare function rollupPluginLicense(options: Options): Plugin;
 
-export default rollupPluginLicense
+export default rollupPluginLicense;