diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..76b8da8
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,77 @@
+declare module 'json-source-map' {
+    // Options for parsing JSON, allowing for custom behavior such as bigint support and jsonc (JSON with comments).
+    export interface ParseOptions {
+        bigint?: boolean; // Specifies if BigInt values should be parsed as native BigInt types.
+        jsonc?: boolean; // Specifies if JSON with comments (jsonc) should be correctly parsed.
+    }
+
+    // Options for stringifying values into JSON, allowing for customization of the output.
+    export interface StringifyOptions {
+        space?: string | number; // Specifies the indentation for beautifying the output JSON.
+        es6?: boolean; // Specifies if ES6 features (e.g., Set, Map) are allowed in the output.
+    }
+
+    // The result of parsing JSON, including the data and pointers to various elements within the JSON string.
+    export interface ParseResult {
+        data: any; // The parsed data as a JavaScript object.
+        pointers: {
+            [key: string]: {                
+                value: { // The starting position of the value in the original JSON string.
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                valueEnd: { // The ending position of the value in the original JSON string.
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                key?: { // The starting position of the key in the original JSON string (for object properties).
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                keyEnd?: { // The ending position of the key in the original JSON string (for object properties).
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+            };
+        };
+    }
+
+    // The result of stringifying a JavaScript value into JSON, including the JSON string and pointers to elements.
+    export interface StringifyResult {
+        json: string; // The generated JSON string.
+        pointers: {
+            [key: string]: {
+                value: { // The starting position of the value in the resulting JSON string.
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                valueEnd: { // The ending position of the value in the resulting JSON string.
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                key?: { // The starting position of the key in the resulting JSON string (for object properties).
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+                keyEnd?: { // The ending position of the key in the resulting JSON string (for object properties).
+                    line: number;
+                    column: number;
+                    pos: number;
+                };
+            };
+        };
+    }
+
+    // Parses a JSON string into a JavaScript object, with options for handling BigInt and comments (jsonc).
+    export function parse(json: string, _?: any, options?: ParseOptions): ParseResult;
+
+    // Converts a JavaScript value to a JSON string, with options for output formatting and ES6 feature inclusion.
+    export function stringify(value: any, _?: any, options?: string | number | StringifyOptions): StringifyResult;
+}
diff --git a/package.json b/package.json
index 8ba2a8e..a5234dd 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.6.1",
   "description": "Parse/stringify JSON and provide source-map for JSON-pointers to all nodes",
   "main": "index.js",
+  "types": "index.d.ts",
   "scripts": {
     "eslint": "eslint index.js spec",
     "test-spec": "mocha spec -R spec",