diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 083204e8f..2561b16b9 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -336,6 +336,7 @@ All definitions files include a header with the author and editors, so at some p
 * [ProgressJs](http://usablica.github.io/progress.js/) (by [Shunsuke Ohtani](https://github.com/zaneli))
 * [promise-pool](https://github.com/vilic/promise-pool) (by [VILIC VANE](https://github.com/vilic))
 * [Q](https://github.com/kriskowal/q) (by Barrie Nemetchek, Andrew Gaspar)
+* [Qajax](https://github.com/gre/qajax) (by [Boltmade](https://github.com/Boltmade))
 * [Q-io](https://github.com/kriskowal/q-io) (by [Bart van der Schoor](https://github.com/Bartvds))
 * [q-retry](https://github.com/vilic/q-retry) (by [VILIC VANE](https://github.com/vilic))
 * [QUnit](http://qunitjs.com/) (by [Diullei Gomes](https://github.com/Diullei))
diff --git a/qajax/qajax-tests.ts b/qajax/qajax-tests.ts
new file mode 100644
index 000000000..820dce455
--- /dev/null
+++ b/qajax/qajax-tests.ts
@@ -0,0 +1,68 @@
+/// <reference path="qajax.d.ts" />
+
+// Based on https://github.com/gre/qajax/blob/master/test/qajax.js
+
+function resetDefaults () {
+    Qajax.defaults.logs = true;
+    Qajax.defaults.timeout = 1000;
+    Qajax.defaults.method = "GET";
+    Qajax.defaults.headers = {};
+    Qajax.defaults.base = "";
+}
+
+var sample01url = "/test/dataset/sample01.json";
+var sample01json = [
+  { "name": "Jerome", "age": 20 },
+  { "name": "Gerard", "age": 30 },
+  { "name": "Martine", "age": 43 }
+];
+
+var emptyUrl = "/test/dataset/empty";
+
+function urlWithOptions (url : string, options : any) {
+  return url+"?"+Qajax.serialize(options);
+}
+
+Qajax;
+Qajax.filterStatus;
+Qajax.filterSuccess;
+Qajax.getJSON;
+Qajax.serialize({ foo: 123, bar: "toto" });
+Qajax.getJSON(sample01url).then((res) => true, (err) => true);
+Qajax(sample01url).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax(emptyUrl, { params: { status: 404 } }).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax({method: "POST", url: "/ECHO", data: "1234567890\nazerty\nuiopqsdfghjklm\nwxcvbn\n"}).then(Qajax.filterSuccess);
+Qajax({method: "POST", url: "/ECHO", data: { foo: 123, bar: { value: 42 }, arr: [1, 2, 3] }}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax({ url: emptyUrl, params: { status: 201 } }).then(Qajax.filterStatus(200));
+Qajax({method: "POST", url: emptyUrl, params: { status: 500 }}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+
+var cancellationD = Q.defer();
+var cancellation = cancellationD.promise;
+Qajax({ cancellation: cancellation, url: urlWithOptions(emptyUrl, { latency: 400 }) }).then(Qajax.filterSuccess).then(Qajax.toJSON);
+
+Qajax.defaults.timeout = 200;
+Qajax({method: "DELETE", url: sample01url, params: { latency: 500 }});
+
+resetDefaults();
+Qajax({method: "POST", url: sample01url, params: { latency: 300 }, timeout: 2000});
+
+Qajax.defaults.timeout = 200;
+Qajax({method: "DELETE", url: sample01url, params: { latency: 500 }, timeout: 0});
+
+resetDefaults();
+Qajax({headers: { "X-Hello": "world" }, method: "GET", url: "/ECHO_HEADERS"}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax({headers: { "X-Hi": "world" }, method: "GET", url: "/ECHO_HEADERS"}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax.defaults.headers = {"X-Foo": "bar"};
+Qajax({method: "GET", url: "/ECHO_HEADERS"}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+
+resetDefaults();
+Qajax("sample01.json", {base: "/test/dataset/"}).then(Qajax.filterSuccess).then(Qajax.toJSON);
+Qajax.defaults.base = "/test/dataset/";
+Qajax("empty").then(Qajax.filterSuccess);
+
+resetDefaults();
+Qajax.defaults.method = "POST";
+Qajax("/ECHO", { data: "1234567890\nazerty\nuiopqsdfghjklm\nwxcvbn\n", responseType: "text/plain" }).then(Qajax.filterSuccess);
+
+resetDefaults();
+Qajax.getJSON(urlWithOptions(sample01url, { latency: 50 })).then((res) => true, (err) => true, () => true);
diff --git a/qajax/qajax.d.ts b/qajax/qajax.d.ts
new file mode 100644
index 000000000..6989ea6d2
--- /dev/null
+++ b/qajax/qajax.d.ts
@@ -0,0 +1,27 @@
+// Type definitions for Qajax
+// Project: https://github.com/gre/qajax
+// Definitions by: Boltmade <https://github.com/Boltmade>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../q/Q.d.ts" />
+
+declare function Qajax(url : string) : Q.Promise<XMLHttpRequest>;
+declare function Qajax(options : any) : Q.Promise<XMLHttpRequest>;
+declare function Qajax(url : string, options : any) : Q.Promise<XMLHttpRequest>;
+
+declare module Qajax {
+	export var defaults : any;
+	export function filterStatus(validStatus : number) : (xhr : XMLHttpRequest) => Q.Promise<XMLHttpRequest>;
+	export function filterStatus(validStatus : (status : number) => boolean) : (xhr : XMLHttpRequest) => Q.Promise<XMLHttpRequest>;
+	export function filterSuccess() : Q.Promise<XMLHttpRequest>;
+
+	export function toJSON(xhr : XMLHttpRequest) : Q.Promise<any>;
+
+	export function getJSON(url : string) : Q.Promise<any>;
+
+	export function serialize(paramsObj : any) : string;
+}
+
+declare module "qajax" {
+	export = Qajax;
+}