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diff --git a/app/assets/javascripts/ide/components/shared/commit_message_field.vue b/app/assets/javascripts/ide/components/shared/commit_message_field.vue
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+++ b/app/assets/javascripts/ide/components/shared/commit_message_field.vue
@@ -0,0 +1,137 @@
+<script>
+import { GlIcon, GlPopover } from '@gitlab/ui';
+import { __, sprintf } from '~/locale';
+import { MAX_TITLE_LENGTH, MAX_BODY_LENGTH } from '../../constants';
+
+export default {
+  components: {
+    GlIcon,
+    GlPopover,
+  },
+  props: {
+    text: {
+      type: String,
+      required: true,
+    },
+    placeholder: {
+      type: String,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      scrollTop: 0,
+      isFocused: false,
+    };
+  },
+  computed: {
+    allLines() {
+      return this.text.split('\n').map((line, i) => ({
+        text: line.substr(0, this.getLineLength(i)) || ' ',
+        highlightedText: line.substr(this.getLineLength(i)),
+      }));
+    },
+  },
+  methods: {
+    handleScroll() {
+      if (this.$refs.textarea) {
+        this.$nextTick(() => {
+          this.scrollTop = this.$refs.textarea.scrollTop;
+        });
+      }
+    },
+    getLineLength(i) {
+      return i === 0 ? MAX_TITLE_LENGTH : MAX_BODY_LENGTH;
+    },
+    onInput(e) {
+      this.$emit('input', e.target.value);
+    },
+    onCtrlEnter() {
+      if (!this.isFocused) return;
+      this.$emit('submit');
+    },
+    updateIsFocused(isFocused) {
+      this.isFocused = isFocused;
+    },
+  },
+  popoverOptions: {
+    triggers: 'hover',
+    placement: 'top',
+    content: sprintf(
+      __(`
+        The character highlighter helps you keep the subject line to %{titleLength} characters
+        and wrap the body at %{bodyLength} so they are readable in git.
+      `),
+      { titleLength: MAX_TITLE_LENGTH, bodyLength: MAX_BODY_LENGTH },
+    ),
+  },
+};
+</script>
+
+<template>
+  <fieldset
+    class="gl-rounded-base gl-inset-border-1-gray-400 gl-py-4 gl-px-5"
+    :class="{
+      'gl-outline-none! gl-focus-ring-border-1-gray-900!': isFocused,
+    }"
+  >
+    <div
+      v-once
+      class="gl-display-flex gl-align-items-center gl-border-b-solid gl-border-b-1 gl-border-b-gray-100 gl-pb-3 gl-mb-3"
+    >
+      <div>{{ __('Commit Message') }}</div>
+      <div id="commit-message-popover-container">
+        <span id="commit-message-question" class="gl-gray-700 gl-ml-3">
+          <gl-icon name="question" />
+        </span>
+        <gl-popover
+          target="commit-message-question"
+          container="commit-message-popover-container"
+          v-bind="$options.popoverOptions"
+        />
+      </div>
+    </div>
+    <div class="gl-relative gl-w-full gl-h-13 gl-overflow-hidden">
+      <div class="gl-absolute gl-z-index-1 gl-font-monospace gl-text-transparent">
+        <div
+          data-testid="highlights"
+          :style="{
+            transform: `translate3d(0, ${-scrollTop}px, 0)`,
+          }"
+        >
+          <div v-for="(line, index) in allLines" :key="index">
+            <span
+              data-testid="highlights-text"
+              class="gl-white-space-pre-wrap gl-word-break-word"
+              v-text="line.text"
+            >
+            </span
+            ><mark
+              v-show="line.highlightedText"
+              data-testid="highlights-mark"
+              class="gl-px-1 gl-py-0 gl-bg-orange-100 gl-text-transparent gl-white-space-pre-wrap gl-word-break-word"
+              v-text="line.highlightedText"
+            >
+            </mark>
+          </div>
+        </div>
+      </div>
+      <textarea
+        ref="textarea"
+        :placeholder="placeholder"
+        :value="text"
+        class="gl-absolute gl-w-full gl-h-full gl-z-index-2 gl-font-monospace p-0 gl-outline-0 gl-bg-transparent gl-border-0"
+        data-qa-selector="ide_commit_message_field"
+        dir="auto"
+        name="commit-message"
+        @scroll="handleScroll"
+        @input="onInput"
+        @focus="updateIsFocused(true)"
+        @blur="updateIsFocused(false)"
+        @keydown.ctrl.enter="onCtrlEnter"
+        @keydown.meta.enter="onCtrlEnter"
+      >
+      </textarea>
+    </div>
+  </fieldset>
+</template>