diff --git a/types/linkifyjs/element.d.ts b/types/linkifyjs/element.d.ts
new file mode 100644
index 0000000000..27b06402b3
--- /dev/null
+++ b/types/linkifyjs/element.d.ts
@@ -0,0 +1,4 @@
+import { LinkifyOptions } from "./index";
+
+export function linkifyElement(element: HTMLElement, options?: LinkifyOptions, doc?: HTMLDocument): HTMLElement;
+export default linkifyElement;
diff --git a/types/linkifyjs/linkifyjs-tests.tsx b/types/linkifyjs/linkifyjs-tests.tsx
index 02d9d3b6d5..266d21d075 100644
--- a/types/linkifyjs/linkifyjs-tests.tsx
+++ b/types/linkifyjs/linkifyjs-tests.tsx
@@ -1,6 +1,9 @@
 import * as React from "react";
 import linkifyHtml from "linkifyjs/html";
 import Linkify from "linkifyjs/react";
+import linkifyStr from "linkifyjs/string";
+import linkifyElement from "linkifyjs/element";
+import { LinkifyOptions } from "linkifyjs";
 
 declare function describe(desc: string, f: () => void): void;
 
@@ -103,7 +106,7 @@ describe("linkifyjs/html", () => {
     linkifyHtml(
         // tslint:disable-next-line:prefer-template
         'Please ignore <script>var a = {}; a.com = "Hi";</script> \n' +
-            "but do <span>b.ca</span>",
+        "but do <span>b.ca</span>",
         {
             ignoreTags: ["script", "style"]
         }
@@ -225,3 +228,25 @@ describe("linkifyjs/react", () => {
         </Linkify>;
     }
 });
+
+describe("linkifyjs/string", () => {
+    /**
+     * The following tests were based on the documentation:
+     * https://soapbox.github.io/linkifyjs/docs/linkify-string.html
+     */
+    const options: LinkifyOptions = {};
+    const str = '<p>For help with GitHub.com, please email support@github.com</p>';
+    const result1: string = linkifyStr(str, options);
+    const result2: string = linkifyStr(str);
+});
+
+describe("linkifyjs/element", () => {
+    /**
+     * The following tests were based on the documentation:
+     * https://soapbox.github.io/linkifyjs/docs/linkify-element.html
+     */
+    const options: LinkifyOptions = {};
+    const result1: HTMLElement = linkifyElement(document.body, options, document);
+    const result2: HTMLElement = linkifyElement(document.body, options);
+    const result3: HTMLElement = linkifyElement(document.body);
+});
diff --git a/types/linkifyjs/string.d.ts b/types/linkifyjs/string.d.ts
new file mode 100644
index 0000000000..06f5573248
--- /dev/null
+++ b/types/linkifyjs/string.d.ts
@@ -0,0 +1,4 @@
+import { LinkifyOptions } from "./index";
+
+export function linkifyStr(str: string, options?: LinkifyOptions): string;
+export default linkifyStr;
diff --git a/types/linkifyjs/tsconfig.json b/types/linkifyjs/tsconfig.json
index 16becbcf0a..875789f909 100644
--- a/types/linkifyjs/tsconfig.json
+++ b/types/linkifyjs/tsconfig.json
@@ -13,5 +13,12 @@
         "forceConsistentCasingInFileNames": true,
         "jsx": "preserve"
     },
-    "files": ["index.d.ts", "html.d.ts", "react.d.ts", "linkifyjs-tests.tsx"]
+    "files": [
+      "element.d.ts",
+      "html.d.ts",
+      "index.d.ts",
+      "linkifyjs-tests.tsx",
+      "react.d.ts",
+      "string.d.ts"
+    ]
 }