diff --git a/frontend/src/lib/storage-manager/storage-manager.js b/frontend/src/lib/storage-manager/storage-manager.js
index 6a669e76e..d2461518c 100644
--- a/frontend/src/lib/storage-manager/storage-manager.js
+++ b/frontend/src/lib/storage-manager/storage-manager.js
@@ -381,8 +381,9 @@ export class StorageManager {
     }).catch(console.error);
   }
 
-  _debugLog(fName, ...args) {
-    console.log(`[DEBUGLOG] StorageManager.${fName}`, { args: args, instance: this });
+  _debugLog() {
+  // _debugLog(fName, ...args) {
+    // console.log(`[DEBUGLOG] StorageManager.${fName}`, { args: args, instance: this });
   }
 
 }
diff --git a/frontend/src/utils/exam-correct/exam-correct.js b/frontend/src/utils/exam-correct/exam-correct.js
index e321c6e8a..6bf962d63 100644
--- a/frontend/src/utils/exam-correct/exam-correct.js
+++ b/frontend/src/utils/exam-correct/exam-correct.js
@@ -221,7 +221,7 @@ export class ExamCorrect {
         results[partKey] = parseFloat(input.value);
       }
     }
-    console.log('results', results);
+    // console.log('results', results);
 
     const result = this._resultSelect && this._resultSelect.value !== 'none' && this._resultSelect.value;
 
@@ -247,7 +247,7 @@ export class ExamCorrect {
     if (results) body.results = results;
     if (result) body.grade = result === 'result' ? this._resultGradeSelect.value : (result === 'delete' ? null : result);
 
-    console.log('request body', body);
+    // console.log('request body', body);
 
     this._app.httpClient.post({
       url: EXAM_CORRECT_URL_POST,
@@ -325,14 +325,14 @@ export class ExamCorrect {
         date: null,
       };
 
-      console.log('response', response);
+      // console.log('response', response);
 
       const candidateRows = (targetRow && [targetRow]) || [...this._element.rows];
       for (let row of candidateRows) {
         let userElem = row.cells.item(this._cIndices.get('user'));
         const userIdent = userElem && userElem.getAttribute(EXAM_CORRECT_USER_ATTR);  // TODO use other attribute identifier
         if (userIdent === user) {
-          console.log('response-update', row);
+          // console.log('response-update', row);
           let status = STATUS.FAILURE;
           switch (response.status) {
             case 'success':
@@ -480,7 +480,7 @@ export class ExamCorrect {
   }
 
   _addRow(rowInfo) {
-    console.log('rowInfo', rowInfo);
+    // console.log('rowInfo', rowInfo);
     // TODO create and use template for this
     const newRow = document.createElement('TR');
     newRow.classList.add('table__row');
diff --git a/frontend/src/utils/hide-columns/hide-columns.js b/frontend/src/utils/hide-columns/hide-columns.js
index 77382e322..312bb1024 100644
--- a/frontend/src/utils/hide-columns/hide-columns.js
+++ b/frontend/src/utils/hide-columns/hide-columns.js
@@ -222,8 +222,8 @@ export class HideColumns {
     hider.style.top  = thR.height + 'px';
   }
 
-  _tableMutated(mutationList, observer) {
-    console.log('_tableMutated', mutationList, observer);
+  _tableMutated(mutationList) {
+    // console.log('_tableMutated', mutationList, observer);
     
     if (!Array.from(mutationList).some(mutation => mutation.type === 'childList'))
       return;