diff --git a/lib/url.js b/lib/url.js
index 250974f..624eb5d 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -90,7 +90,13 @@ Url.toQueryString = function (queryObject) {
   }
 
   _.each(queryObject, function (value, key) {
-    result.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
+    if (_.isArray(value)) {
+      _.each(value, function(valuePart) {
+        result.push(encodeURIComponent(key + '[]') + '=' + encodeURIComponent(valuePart));
+      });
+    } else {
+      result.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
+    }
   });
 
   // no sense in adding a pointless question mark
@@ -247,7 +253,16 @@ Url.prototype.params = function (path) {
   if (queryString) {
     _.each(queryString.split('&'), function (paramString) {
       paramParts = paramString.split('=');
-      params[paramParts[0]] = decodeURIComponent(paramParts[1]);
+      var key = paramParts[0];
+      var value = decodeURIComponent(paramParts[1]);
+
+      if (key.slice(-2) === '[]') {
+        var key = key.slice(0, -2)
+        params[key] = params[key] || [];
+        params[key].push(value)
+      } else {
+        params[key] = value;
+      }
     });
   }
 
diff --git a/test/url_test.js b/test/url_test.js
index 1ae203b..1d0153c 100644
--- a/test/url_test.js
+++ b/test/url_test.js
@@ -168,3 +168,23 @@ Tinytest.add('Url - matching', function (test) {
   test.isTrue(path.exec('/commits/123..456'));
   */
 });
+
+Tinytest.add('Url - params', function (test) {
+  var path = new Url(paths.explicit);
+  test.isUndefined(path.params('/posts').foo);
+  test.equal(path.params('/posts?foo=bar').foo, 'bar');
+  test.equal(path.params('/posts?foo[]=bar').foo, ['bar']);
+  test.equal(path.params('/posts?foo%5B%5D=bar').foo, ['bar']);
+  test.equal(path.params('/posts?foo[]=bar&foo[]=baz').foo, ['bar', 'baz']);
+  test.equal(path.params('/posts?foo%5B%5D=bar&foo%5B%5D=baz').foo, ['bar', 'baz']);
+});
+
+Tinytest.add('Url - resolve', function (test) {
+  var path = new Url(paths.explicit);
+  test.equal(path.resolve({}), '/posts');
+  test.equal(path.resolve({}, {query: {foo: 'bar'}}), '/posts?foo=bar');
+  test.equal(path.resolve({}, {query: {foo: ['bar']}}), '/posts?foo%5B%5D=bar');
+  test.equal(path.resolve({}, {query: {foo: ['bar', 'baz']}}), '/posts?foo%5B%5D=bar&foo%5B%5D=baz');
+  // no good resolution of this one
+  test.equal(path.resolve({}, {query: {foo: []}}), '/posts');
+});