diff --git a/src/core/compile/providers/compile.ts b/src/core/compile/providers/compile.ts
index ec515a010..a37b538f4 100644
--- a/src/core/compile/providers/compile.ts
+++ b/src/core/compile/providers/compile.ts
@@ -83,7 +83,7 @@ import { CoreSitePluginsQuizAccessRuleComponent } from '@core/siteplugins/compon
 import { CoreSitePluginsAssignFeedbackComponent } from '@core/siteplugins/components/assign-feedback/assign-feedback';
 import { CoreSitePluginsAssignSubmissionComponent } from '@core/siteplugins/components/assign-submission/assign-submission';
 
-// Import addon providers. Do not import database module because it causes circular dependencies. @todo workshop
+// Import addon providers. Do not import database module because it causes circular dependencies.
 import { ADDON_BADGES_PROVIDERS } from '@addon/badges/badges.module';
 import { ADDON_CALENDAR_PROVIDERS } from '@addon/calendar/calendar.module';
 import { ADDON_COMPETENCY_PROVIDERS } from '@addon/competency/competency.module';
diff --git a/src/core/course/providers/helper.ts b/src/core/course/providers/helper.ts
index 79902b65b..28bc342bf 100644
--- a/src/core/course/providers/helper.ts
+++ b/src/core/course/providers/helper.ts
@@ -819,8 +819,6 @@ export class CoreCourseHelperProvider {
             moduleInfo.sizeReadable = this.textUtils.bytesToSize(moduleSize, 2);
         }));
 
-        // @todo: Decide what to display instead of timemodified. Last check_updates?
-
         promises.push(this.prefetchDelegate.getModuleStatus(module, courseId).then((moduleStatus) => {
             moduleInfo.status = moduleStatus;
             switch (moduleStatus) {
diff --git a/src/directives/external-content.ts b/src/directives/external-content.ts
index e16187522..93a20ee76 100644
--- a/src/directives/external-content.ts
+++ b/src/directives/external-content.ts
@@ -187,7 +187,6 @@ export class CoreExternalContentDirective implements AfterViewInit {
                 this.logger.debug('Using URL ' + finalUrl + ' for ' + url);
                 if (tagName === 'SOURCE') {
                     // The browser does not catch changes in SRC, we need to add a new source.
-                    // @todo: Check if changing src works in Android 4.4, maybe the problem was only in 4.1-4.3.
                     this.addSource(finalUrl);
                 } else {
                     this.element.setAttribute(targetAttr, finalUrl);
diff --git a/src/directives/format-text.ts b/src/directives/format-text.ts
index 48cfb470f..d8cc92fd5 100644
--- a/src/directives/format-text.ts
+++ b/src/directives/format-text.ts
@@ -186,7 +186,6 @@ export class CoreFormatTextDirective implements OnChanges {
             this.element.innerHTML = ''; // Remove current contents.
             if (this.maxHeight && div.innerHTML != '') {
                 // Move the children to the current element to be able to calculate the height.
-                // @todo: Display the element?
                 this.domUtils.moveChildren(div, this.element);
 
                 // Height cannot be calculated if the element is not shown while calculating.