diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index 53c98f4a5ab..8a06424cefc 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -1645,6 +1645,8 @@ $string['selectagroup'] = 'Select a group';
 $string['selectaregion'] = 'Select a region';
 $string['selctauser'] = 'Select a user';
 $string['selectall'] = 'Select all';
+$string['selectallusersonpage'] = 'Select all users on this page';
+$string['selectalluserswithcount'] = 'Select all {$a} users';
 $string['selectamodule'] = 'Please select an activity module';
 $string['selectanoptions'] = 'Select an option';
 $string['selectdefault'] = 'Select default';
diff --git a/user/index.php b/user/index.php
index c1d104b975b..d51f72f0db1 100644
--- a/user/index.php
+++ b/user/index.php
@@ -42,6 +42,7 @@ $search       = optional_param('search', '', PARAM_RAW); // Make sure it is proc
 $roleid       = optional_param('roleid', 0, PARAM_INT); // Optional roleid, 0 means all enrolled users (or all on the frontpage).
 $contextid    = optional_param('contextid', 0, PARAM_INT); // One of this or.
 $courseid     = optional_param('id', 0, PARAM_INT); // This are required.
+$selectall    = optional_param('selectall', false, PARAM_BOOL); // When rendering checkboxes against users mark them all checked.
 
 $PAGE->set_url('/user/index.php', array(
         'page' => $page,
@@ -713,7 +714,12 @@ if ($mode === MODE_USERDETAILS) {    // Print simple listing.
                 $row->cells[2]->text .= implode('', $links);
 
                 if ($bulkoperations) {
-                    $row->cells[2]->text .= '<br /><input type="checkbox" class="usercheckbox" name="user'.$user->id.'" /> ';
+                    if ($selectall) {
+                        $checked = 'checked="true"';
+                    } else {
+                        $checked = '';
+                    }
+                    $row->cells[2]->text .= '<br /><input type="checkbox" class="usercheckbox" name="user'.$user->id.'" ' .$checked .'/> ';
                 }
                 $table->data = array($row);
                 echo html_writer::table($table);
@@ -767,7 +773,12 @@ if ($mode === MODE_USERDETAILS) {    // Print simple listing.
 
             $data = array();
             if ($bulkoperations) {
-                $data[] = '<input type="checkbox" class="usercheckbox" name="user'.$user->id.'" />';
+                if ($selectall) {
+                    $checked = 'checked="true"';
+                } else {
+                    $checked = '';
+                }
+                $data[] = '<input type="checkbox" class="usercheckbox" name="user'.$user->id.'" ' . $checked .'/>';
             }
             $data[] = $OUTPUT->user_picture($user, array('size' => 35, 'courseid' => $course->id));
             $data[] = $profilelink;
@@ -797,7 +808,27 @@ if ($mode === MODE_USERDETAILS) {    // Print simple listing.
 
 if ($bulkoperations) {
     echo '<br /><div class="buttons">';
-    echo '<input type="button" id="checkall" value="'.get_string('selectall').'" /> ';
+
+    if ($matchcount > 0 && $perpage < $matchcount) {
+        $perpageurl = clone($baseurl);
+        $perpageurl->remove_params('perpage');
+        $perpageurl->param('perpage', SHOW_ALL_PAGE_SIZE);
+        $perpageurl->param('selectall', true);
+        $showalllink = $perpageurl;
+    } else {
+        $showalllink = false;
+    }
+
+    if ($perpage < $matchcount) {
+        // Select all users, refresh page showing all users and mark them all selected.
+        $label = get_string('selectalluserswithcount', 'moodle', $matchcount);
+        echo '<input type="button" id="checkall" value="' . $label . '" data-showallink="' . $showalllink . '" /> ';
+        // Select all users, mark all users on page as selected.
+        echo '<input type="button" id="checkallonpage" value="' . get_string('selectallusersonpage') . '" /> ';
+    } else {
+        echo '<input type="button" id="checkallonpage" value="' . get_string('selectall') . '" /> ';
+    }
+
     echo '<input type="button" id="checknone" value="'.get_string('deselectall').'" /> ';
     $displaylist = array();
     $displaylist['messageselect.php'] = get_string('messageselectadd');
diff --git a/user/module.js b/user/module.js
index 324a2af2de6..98c9040280f 100644
--- a/user/module.js
+++ b/user/module.js
@@ -21,10 +21,17 @@ M.core_user.init_participation = function(Y) {
 	}, '#formactionid');
 
     Y.on('click', function(e) {
+        // Presence of a show all link indicates we should redirect to
+        // a page with all users listed and checked, otherwise just check
+        // those already shown.
+        var showallink = this.getAttribute('data-showallink');
+        if (showallink) {
+            window.location = showallink;
+        }
         Y.all('input.usercheckbox').each(function() {
             this.set('checked', 'checked');
         });
-    }, '#checkall');
+    }, '#checkall, #checkallonpage');
 
     Y.on('click', function(e) {
         Y.all('input.usercheckbox').each(function() {
diff --git a/user/tests/behat/view_participants.feature b/user/tests/behat/view_participants.feature
new file mode 100644
index 00000000000..c21ca02082a
--- /dev/null
+++ b/user/tests/behat/view_participants.feature
@@ -0,0 +1,204 @@
+@core @core_user
+Feature: View course participants
+  In order to know who is on a course
+  As a teacher
+  I need to be able to view the participants on a course
+
+  Background:
+    Given the following "users" exist:
+      | username  | firstname | lastname | email                 |
+      | teacher1  | Teacher   | 1        | teacher1@example.com  |
+      | student1  | Student   | 1        | student1@example.com  |
+      | student2  | Student   | 2        | student2@example.com  |
+      | student3  | Student   | 3        | student3@example.com  |
+      | student4  | Student   | 4        | student4@example.com  |
+      | student5  | Student   | 5        | student5@example.com  |
+      | student6  | Student   | 6        | student6@example.com  |
+      | student7  | Student   | 7        | student7@example.com  |
+      | student8  | Student   | 8        | student8@example.com  |
+      | student9  | Student   | 9        | student9@example.com  |
+      | student10 | Student   | 10       | student10@example.com |
+      | student11 | Student   | 11       | student11@example.com |
+      | student12 | Student   | 12       | student12@example.com |
+      | student13 | Student   | 13       | student13@example.com |
+      | student14 | Student   | 14       | student14@example.com |
+      | student15 | Student   | 15       | student15@example.com |
+      | student16 | Student   | 16       | student16@example.com |
+      | student17 | Student   | 17       | student17@example.com |
+      | student18 | Student   | 18       | student18@example.com |
+      | student19 | Student   | 19       | student19@example.com |
+      | student20 | Student   | 20       | student20@example.com |
+    And the following "courses" exist:
+      | fullname | shortname | format |
+      | Course 1 | C1        | topics |
+    And the following "course enrolments" exist:
+      | user      | course | role           |
+      | teacher1  | C1     | editingteacher |
+      | student1  | C1     | student        |
+      | student2  | C1     | student        |
+      | student3  | C1     | student        |
+      | student4  | C1     | student        |
+      | student5  | C1     | student        |
+      | student6  | C1     | student        |
+      | student7  | C1     | student        |
+      | student8  | C1     | student        |
+      | student9  | C1     | student        |
+      | student10 | C1     | student        |
+      | student11 | C1     | student        |
+      | student12 | C1     | student        |
+      | student13 | C1     | student        |
+      | student14 | C1     | student        |
+      | student15 | C1     | student        |
+      | student16 | C1     | student        |
+      | student17 | C1     | student        |
+      | student18 | C1     | student        |
+      | student19 | C1     | student        |
+
+  @javascript
+  Scenario: Use select and deselect all buttons
+    When I log in as "teacher1"
+    And I follow "Course 1"
+    And I follow "Participants"
+    And I press "Select all"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "1"
+
+    And I press "Deselect all"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "0"
+
+  @javascript
+  Scenario: Use select all users on this page, select all n users and deselect all
+    And the following "course enrolments" exist:
+      | user      | course | role    |
+      | student20 | C1     | student |
+    When I log in as "teacher1"
+    And I follow "Course 1"
+    And I follow "Participants"
+    And I press "Select all users on this page"
+    Then I should not see "Student 11"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "1"
+
+    And I press "Deselect all"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "0"
+
+    And I press "Select all 21 users"
+    Then I should see "Student 11"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "1"
+    Then the field with xpath "//tbody//tr[21]//input[@class='usercheckbox']" matches value "1"
+
+    And I press "Deselect all"
+    Then the field with xpath "//tbody//tr[1]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[2]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[3]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[4]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[5]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[6]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[7]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[8]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[9]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[10]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[11]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[12]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[13]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[14]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[15]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[16]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[17]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[18]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[19]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[20]//input[@class='usercheckbox']" matches value "0"
+    Then the field with xpath "//tbody//tr[21]//input[@class='usercheckbox']" matches value "0"
\ No newline at end of file