diff --git a/browser/components/MarkdownEditor.js b/browser/components/MarkdownEditor.js
index 70df16a0..280fbced 100644
--- a/browser/components/MarkdownEditor.js
+++ b/browser/components/MarkdownEditor.js
@@ -64,6 +64,10 @@ class MarkdownEditor extends React.Component {
     })
   }
 
+  setValue (value) {
+    this.refs.code.setValue(value)
+  }
+
   handleChange (e) {
     this.value = this.refs.code.value
     this.props.onChange(e)
diff --git a/browser/components/MarkdownSplitEditor.js b/browser/components/MarkdownSplitEditor.js
index d714125a..73cac7ad 100644
--- a/browser/components/MarkdownSplitEditor.js
+++ b/browser/components/MarkdownSplitEditor.js
@@ -20,6 +20,10 @@ class MarkdownSplitEditor extends React.Component {
     }
   }
 
+  setValue (value) {
+    this.refs.code.setValue(value)
+  }
+
   handleOnChange () {
     this.value = this.refs.code.value
     this.props.onChange()
diff --git a/browser/components/TodoListPercentage.js b/browser/components/TodoListPercentage.js
index 3565f274..cb896622 100644
--- a/browser/components/TodoListPercentage.js
+++ b/browser/components/TodoListPercentage.js
@@ -12,7 +12,7 @@ import styles from './TodoListPercentage.styl'
  */
 
 const TodoListPercentage = ({
-  percentageOfTodo
+  percentageOfTodo, onClick
 }) => (
   <div styleName='percentageBar' style={{display: isNaN(percentageOfTodo) ? 'none' : ''}}>
     <div styleName='progressBar' style={{width: `${percentageOfTodo}%`}}>
@@ -20,11 +20,15 @@ const TodoListPercentage = ({
         <p styleName='percentageText'>{percentageOfTodo}%</p>
       </div>
     </div>
+    <div styleName='todoClear'>
+      <p styleName='todoClearText' onClick={(e) => onClick(e)}>clear</p>
+    </div>
   </div>
 )
 
 TodoListPercentage.propTypes = {
-  percentageOfTodo: PropTypes.number.isRequired
+  percentageOfTodo: PropTypes.number.isRequired,
+  onClick: PropTypes.func.isRequired
 }
 
 export default CSSModules(TodoListPercentage, styles)
diff --git a/browser/components/TodoListPercentage.styl b/browser/components/TodoListPercentage.styl
index 7b6a7d61..5a0f3257 100644
--- a/browser/components/TodoListPercentage.styl
+++ b/browser/components/TodoListPercentage.styl
@@ -1,4 +1,5 @@
 .percentageBar
+  display: flex
   position absolute
   top 72px
   right 0px
@@ -30,6 +31,20 @@
   color #f4f4f4
   font-weight 600
 
+.todoClear
+  display flex
+  justify-content: flex-end
+  position absolute
+  z-index 120
+  width 100%
+  height 100%
+  padding 2px 10px
+
+.todoClearText
+  color #f4f4f4
+  cursor pointer
+  font-weight 500
+
 body[data-theme="dark"]
   .percentageBar
     background-color #444444
@@ -39,6 +54,9 @@ body[data-theme="dark"]
 
   .percentageText
     color $ui-dark-text-color
+  
+  .todoClearText
+    color $ui-dark-text-color
 
 body[data-theme="solarized-dark"]
   .percentageBar
@@ -50,6 +68,9 @@ body[data-theme="solarized-dark"]
   .percentageText
     color #fdf6e3
 
+  .todoClearText
+    color #fdf6e3
+
 body[data-theme="monokai"]
   .percentageBar
     background-color: $ui-monokai-borderColor
@@ -69,3 +90,6 @@ body[data-theme="dracula"]
 
   .percentageText
     color $ui-dracula-text-color
+
+  .percentageText
+    color $ui-dracula-text-color
diff --git a/browser/main/Detail/MarkdownNoteDetail.js b/browser/main/Detail/MarkdownNoteDetail.js
index e4493a80..65752f97 100755
--- a/browser/main/Detail/MarkdownNoteDetail.js
+++ b/browser/main/Detail/MarkdownNoteDetail.js
@@ -293,9 +293,29 @@ class MarkdownNoteDetail extends React.Component {
     })
   }
 
+  handleClearTodo () {
+    const { note } = this.state
+    const splitted = note.content.split('\n')
+
+    const clearTodoContent = splitted.map((line) => {
+      const trimmedLine = line.trim()
+      if (trimmedLine.match(/\[x\]/i)) {
+        return line.replace(/\[x\]/i, '[ ]')
+      } else {
+        return line
+      }
+    }).join('\n')
+
+    note.content = clearTodoContent
+    this.refs.content.setValue(note.content)
+
+    this.updateNote(note)
+  }
+
   renderEditor () {
     const { config, ignorePreviewPointerEvents } = this.props
     const { note } = this.state
+
     if (this.state.editorType === 'EDITOR_PREVIEW') {
       return <MarkdownEditor
         ref='content'
@@ -375,7 +395,7 @@ class MarkdownNoteDetail extends React.Component {
           data={data}
           onChange={this.handleUpdateTag.bind(this)}
         />
-        <TodoListPercentage percentageOfTodo={getTodoPercentageOfCompleted(note.content)} />
+        <TodoListPercentage onClick={(e) => this.handleClearTodo(e)} percentageOfTodo={getTodoPercentageOfCompleted(note.content)} />
       </div>
       <div styleName='info-right'>
         <ToggleModeButton onClick={(e) => this.handleSwitchMode(e)} editorType={editorType} />