diff --git a/types/linkify-it/index.d.ts b/types/linkify-it/index.d.ts
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+++ b/types/linkify-it/index.d.ts
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+// Type definitions for tweezer.js 2.0
+// Project: https://github.com/markdown-it/linkify-it
+// Definitions by: Lindsey Smith <https://github.com/praxxis>, Robert Coie <https://github.com/rapropos/typed-linkify-it>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare const LinkifyIt: {
+  (schemas?: LinkifyIt.SchemaRules, options?: LinkifyIt.Options): LinkifyIt.LinkifyIt;
+  new (schemas?: LinkifyIt.SchemaRules, options?: LinkifyIt.Options): LinkifyIt.LinkifyIt;
+};
+
+declare namespace LinkifyIt {
+  export interface FullRule {
+    validate: (text: string, pos: number, self: LinkifyIt) => number;
+    normalize?: (match: string) => string;
+  }
+
+  export type Rule = string | RegExp | FullRule;
+
+  export interface SchemaRules {
+    [schema: string]: Rule;
+  }
+
+  export interface Options {
+    fuzzyLink?: boolean;
+    fuzzyIP?: boolean;
+    fuzzyEmail?: boolean;
+  }
+
+  export interface Match {
+    index: number;
+    lastIndex: number;
+    raw: string;
+    schema: string;
+    text: string;
+    url: string;
+  }
+
+  export interface LinkifyIt {
+    add(schema: string, rule: Rule): LinkifyIt;
+    match(text: string): Match[];
+    normalize(raw: string): string;
+    pretest(text: string): boolean;
+    set(options: Options): LinkifyIt;
+    test(text: string): boolean;
+    testSchemaAt(text: string, schemaName: string, pos: number): number;
+    tlds(list: string | string[], keepOld?: boolean): LinkifyIt;
+  }
+}
+
+export = LinkifyIt;
diff --git a/types/linkify-it/linkify-it-tests.ts b/types/linkify-it/linkify-it-tests.ts
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+++ b/types/linkify-it/linkify-it-tests.ts
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+import LinkifyIt = require('linkify-it');
+
+// fluent interface
+const linkifier = new LinkifyIt();
+
+linkifier
+    .add('git:', 'http:')
+    .set({ fuzzyIP: true })
+    .tlds('onion', true)
+    .test("https://github.com/DefinitelyTyped/DefinitelyTyped/");
+
+// match
+const matches = linkifier.match("https://github.com/DefinitelyTyped/DefinitelyTyped/");
+matches.forEach(({index, lastIndex, raw, schema, text, url}) => {});
+
+// complex rule
+linkifier.add('@', {
+    validate: (text, pos, self) => {
+        return 42;
+    },
+    normalize: (match) => {
+        return 'forty-two';
+    }
+});
diff --git a/types/linkify-it/tsconfig.json b/types/linkify-it/tsconfig.json
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+++ b/types/linkify-it/tsconfig.json
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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "linkify-it-tests.ts"
+    ]
+}
diff --git a/types/linkify-it/tslint.json b/types/linkify-it/tslint.json
new file mode 100644
index 0000000000..2221e40e4a
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+++ b/types/linkify-it/tslint.json
@@ -0,0 +1 @@
+{ "extends": "../tslint.json" }
\ No newline at end of file