diff --git a/browser/main/Detail/SnippetNoteDetail.js b/browser/main/Detail/SnippetNoteDetail.js
index 65d5dfd3..557bca0b 100644
--- a/browser/main/Detail/SnippetNoteDetail.js
+++ b/browser/main/Detail/SnippetNoteDetail.js
@@ -354,12 +354,10 @@ class SnippetNoteDetail extends React.Component {
       this.refs['code-' + this.state.snippetIndex].reload()
 
       if (this.visibleTabs.offsetWidth > this.allTabs.scrollWidth) {
-        console.log('no need for arrows')
         this.moveTabBarBy(0)
       } else {
         const lastTab = this.allTabs.lastChild
         if (lastTab.offsetLeft + lastTab.offsetWidth < this.visibleTabs.offsetWidth) {
-          console.log('need to scroll')
           const width = this.visibleTabs.offsetWidth
           const newLeft = lastTab.offsetLeft + lastTab.offsetWidth - width
           this.moveTabBarBy(newLeft > 0 ? -newLeft : 0)
@@ -627,7 +625,6 @@ class SnippetNoteDetail extends React.Component {
   }
 
   focusEditor () {
-    console.log('code-' + this.state.snippetIndex)
     this.refs['code-' + this.state.snippetIndex].focus()
   }
 
diff --git a/browser/main/Main.js b/browser/main/Main.js
index 1ffb2f74..e9d2c94d 100644
--- a/browser/main/Main.js
+++ b/browser/main/Main.js
@@ -80,7 +80,6 @@ class Main extends React.Component {
         }
       })
       .then(data => {
-        console.log(data)
         store.dispatch({
           type: 'ADD_STORAGE',
           storage: data.storage,
diff --git a/browser/main/NoteList/index.js b/browser/main/NoteList/index.js
index 30ad93c3..a1560bee 100644
--- a/browser/main/NoteList/index.js
+++ b/browser/main/NoteList/index.js
@@ -56,7 +56,6 @@ class NoteList extends React.Component {
     super(props)
 
     this.selectNextNoteHandler = () => {
-      console.log('fired next')
       this.selectNextNote()
     }
     this.selectPriorNoteHandler = () => {
@@ -616,7 +615,6 @@ class NoteList extends React.Component {
       .catch((err) => {
         console.error('Cannot Delete note: ' + err)
       })
-      console.log('Notes were all deleted')
     } else {
       if (!confirmDeleteNote(confirmDeletion, false)) return
 
@@ -636,7 +634,6 @@ class NoteList extends React.Component {
           })
         })
         AwsMobileAnalyticsConfig.recordDynamicCustomEvent('EDIT_NOTE')
-        console.log('Notes went to trash')
       })
       .catch((err) => {
         console.error('Notes could not go to trash: ' + err)
diff --git a/browser/main/SideNav/index.js b/browser/main/SideNav/index.js
index e78c9c77..39fe057a 100644
--- a/browser/main/SideNav/index.js
+++ b/browser/main/SideNav/index.js
@@ -306,7 +306,6 @@ class SideNav extends React.Component {
     .catch((err) => {
       console.error('Cannot Delete note: ' + err)
     })
-    console.log('Trash emptied')
   }
 
   handleFilterButtonContextMenu (event) {
diff --git a/browser/main/lib/AwsMobileAnalyticsConfig.js b/browser/main/lib/AwsMobileAnalyticsConfig.js
index 1ef4f8da..e4a21a92 100644
--- a/browser/main/lib/AwsMobileAnalyticsConfig.js
+++ b/browser/main/lib/AwsMobileAnalyticsConfig.js
@@ -45,7 +45,6 @@ function initAwsMobileAnalytics () {
   if (getSendEventCond()) return
   AWS.config.credentials.get((err) => {
     if (!err) {
-      console.log('Cognito Identity ID: ' + AWS.config.credentials.identityId)
       recordDynamicCustomEvent('APP_STARTED')
       recordStaticCustomEvent()
     }
@@ -58,7 +57,7 @@ function recordDynamicCustomEvent (type, options = {}) {
     mobileAnalyticsClient.recordEvent(type, options)
   } catch (analyticsError) {
     if (analyticsError instanceof ReferenceError) {
-      console.log(analyticsError.name + ': ' + analyticsError.message)
+      console.error(analyticsError.name + ': ' + analyticsError.message)
     }
   }
 }
@@ -71,7 +70,7 @@ function recordStaticCustomEvent () {
     })
   } catch (analyticsError) {
     if (analyticsError instanceof ReferenceError) {
-      console.log(analyticsError.name + ': ' + analyticsError.message)
+      console.error(analyticsError.name + ': ' + analyticsError.message)
     }
   }
 }
diff --git a/browser/main/lib/dataApi/attachmentManagement.js b/browser/main/lib/dataApi/attachmentManagement.js
index 912450c1..c193eaf2 100644
--- a/browser/main/lib/dataApi/attachmentManagement.js
+++ b/browser/main/lib/dataApi/attachmentManagement.js
@@ -529,7 +529,6 @@ function handleAttachmentLinkPaste (storageKey, noteKey, linkText) {
       return modifiedLinkText
     })
   } else {
-    console.log('One if the parameters was null -> Do nothing..')
     return Promise.resolve(linkText)
   }
 }
diff --git a/browser/main/lib/dataApi/renameStorage.js b/browser/main/lib/dataApi/renameStorage.js
index 78242bed..3b806d1c 100644
--- a/browser/main/lib/dataApi/renameStorage.js
+++ b/browser/main/lib/dataApi/renameStorage.js
@@ -14,7 +14,6 @@ function renameStorage (key, name) {
     cachedStorageList = JSON.parse(localStorage.getItem('storages'))
     if (!_.isArray(cachedStorageList)) throw new Error('invalid storages')
   } catch (err) {
-    console.log('error got')
     console.error(err)
     return Promise.reject(err)
   }
diff --git a/browser/main/lib/dataApi/resolveStorageData.js b/browser/main/lib/dataApi/resolveStorageData.js
index 681a102e..da41f3d0 100644
--- a/browser/main/lib/dataApi/resolveStorageData.js
+++ b/browser/main/lib/dataApi/resolveStorageData.js
@@ -31,13 +31,9 @@ function resolveStorageData (storageCache) {
 
   const version = parseInt(storage.version, 10)
   if (version >= 1) {
-    if (version > 1) {
-      console.log('The repository version is newer than one of current app.')
-    }
     return Promise.resolve(storage)
   }
 
-  console.log('Transform Legacy storage', storage.path)
   return migrateFromV6Storage(storage.path)
     .then(() => storage)
 }
diff --git a/browser/main/lib/dataApi/resolveStorageNotes.js b/browser/main/lib/dataApi/resolveStorageNotes.js
index fa3f19ae..9da27248 100644
--- a/browser/main/lib/dataApi/resolveStorageNotes.js
+++ b/browser/main/lib/dataApi/resolveStorageNotes.js
@@ -9,7 +9,7 @@ function resolveStorageNotes (storage) {
     notePathList = sander.readdirSync(notesDirPath)
   } catch (err) {
     if (err.code === 'ENOENT') {
-      console.log(notesDirPath, ' doesn\'t exist.')
+      console.error(notesDirPath, ' doesn\'t exist.')
       sander.mkdirSync(notesDirPath)
     } else {
       console.warn('Failed to find note dir', notesDirPath, err)
diff --git a/browser/main/lib/dataApi/toggleStorage.js b/browser/main/lib/dataApi/toggleStorage.js
index dbb625c3..246d85ef 100644
--- a/browser/main/lib/dataApi/toggleStorage.js
+++ b/browser/main/lib/dataApi/toggleStorage.js
@@ -12,7 +12,6 @@ function toggleStorage (key, isOpen) {
     cachedStorageList = JSON.parse(localStorage.getItem('storages'))
     if (!_.isArray(cachedStorageList)) throw new Error('invalid storages')
   } catch (err) {
-    console.log('error got')
     console.error(err)
     return Promise.reject(err)
   }
diff --git a/browser/main/lib/eventEmitter.js b/browser/main/lib/eventEmitter.js
index de08f078..1276545b 100644
--- a/browser/main/lib/eventEmitter.js
+++ b/browser/main/lib/eventEmitter.js
@@ -14,7 +14,6 @@ function once (name, listener) {
 }
 
 function emit (name, ...args) {
-  console.log(name)
   remote.getCurrentWindow().webContents.send(name, ...args)
 }
 
diff --git a/browser/main/lib/ipcClient.js b/browser/main/lib/ipcClient.js
index 0c916617..c06296b5 100644
--- a/browser/main/lib/ipcClient.js
+++ b/browser/main/lib/ipcClient.js
@@ -14,14 +14,13 @@ nodeIpc.connectTo(
   path.join(app.getPath('userData'), 'boostnote.service'),
   function () {
     nodeIpc.of.node.on('error', function (err) {
-      console.log(err)
+      console.error(err)
     })
     nodeIpc.of.node.on('connect', function () {
-      console.log('Connected successfully')
       ipcRenderer.send('config-renew', {config: ConfigManager.get()})
     })
     nodeIpc.of.node.on('disconnect', function () {
-      console.log('disconnected')
+      return
     })
   }
 )
diff --git a/browser/main/store.js b/browser/main/store.js
index b8f13cc8..11ff2f3f 100644
--- a/browser/main/store.js
+++ b/browser/main/store.js
@@ -113,7 +113,6 @@ function data (state = defaultDataMap(), action) {
 
         // If storage chanced, origin key must be discarded
         if (originKey !== uniqueKey) {
-          console.log('diffrent storage')
           // From isStarred
           if (originNote.isStarred) {
             state.starredSet = new Set(state.starredSet)
diff --git a/lib/main-app.js b/lib/main-app.js
index 1ab9f4ca..f25d07d2 100644
--- a/lib/main-app.js
+++ b/lib/main-app.js
@@ -59,7 +59,7 @@ updater.on('update-downloaded', (info) => {
 })
 
 updater.autoUpdater.on('error', (err) => {
-  console.log(err)
+  console.error(err)
 })
 
 ipc.on('update-app-confirm', function (event, msg) {