diff --git a/src/components/editor/MarkdownEditor.vue b/src/components/editor/MarkdownEditor.vue
index c9a13f3..1c2981c 100644
--- a/src/components/editor/MarkdownEditor.vue
+++ b/src/components/editor/MarkdownEditor.vue
@@ -1,5 +1,5 @@
 <script setup>
-import { ref, onMounted, onBeforeUnmount, watch, nextTick } from 'vue'
+import { ref, onMounted, onBeforeUnmount, watch } from 'vue'
 import Editor from '@toast-ui/editor'
 import '@toast-ui/editor/dist/toastui-editor.css'
 import codeSyntaxHighlight from '@toast-ui/editor-plugin-code-syntax-highlight/dist/toastui-editor-plugin-code-syntax-highlight-all'
@@ -16,175 +16,25 @@ const props = defineProps({
 })
 const emit = defineEmits(['update:modelValue'])
 
-// PC(Electron)는 Toast UI 에디터가 Windows IME 와 충돌(첫 자음 중복)하므로 textarea 기반 에디터를 쓴다.
-// 웹/모바일(APK)은 Toast UI 위지윅 유지.
-const isElectron = typeof navigator !== 'undefined' && /electron/i.test(navigator.userAgent)
+const el = ref(null)
+let editor = null
+// 에디터가 마지막으로 emit 한 값. 부모가 되돌려준 echo 를 구분해 입력 중 setMarkdown 으로 끊기지 않게.
+let lastEmitted = props.modelValue || ''
 
-// 공용: 이미지 압축 후 서버 업로드 → URL 반환
+// 이미지: 압축 후 서버 업로드 → URL (base64 대신 본문엔 짧은 URL 만)
 async function uploadCompressed(fileOrBlob) {
   const blob = await imageToBlob(fileOrBlob, 1280) // 긴 변 1280px, JPEG 0.85
   const { url } = await boardApi.uploadImage(blob)
   return url
 }
 
-/* ===================== PC: 본문 텍스트(textarea) + 이미지 첨부(썸네일) ===================== */
-// 이미지 마크다운은 본문 텍스트에 노출하지 않고 별도 첨부로 관리 → 저장 시 본문 끝에 합쳐 emit.
-const IMG_RE = /!\[([^\]]*)\]\(\s*([^)\s]+)[^)]*\)/g
-function splitContent(md) {
-  const imgs = []
-  const body = (md || '')
-    .replace(IMG_RE, (_, alt, url) => {
-      imgs.push({ url, alt: alt || '' })
-      return ''
-    })
-    .replace(/\n{3,}/g, '\n\n')
-    .trim()
-  return { body, imgs }
-}
-const _init = splitContent(props.modelValue)
-const bodyText = ref(_init.body)
-const images = ref(_init.imgs) // [{ url, alt }]
-const taRef = ref(null)
-const imgInput = ref(null)
-const imgBusy = ref(false)
-const imgMsg = ref('')
-let imgMsgTimer = null
-function flashImgMsg(msg) {
-  imgMsg.value = msg
-  if (imgMsgTimer) clearTimeout(imgMsgTimer)
-  imgMsgTimer = setTimeout(() => (imgMsg.value = ''), 4000)
-}
-
-function combine() {
-  const imgMd = images.value.map((i) => `![${i.alt || ''}](${i.url})`).join('\n\n')
-  return [bodyText.value.trim(), imgMd].filter(Boolean).join('\n\n')
-}
-
-let lastEmitted = isElectron ? combine() : (props.modelValue || '')
-
-if (isElectron) {
-  watch(
-    [bodyText, images],
-    () => {
-      lastEmitted = combine()
-      emit('update:modelValue', lastEmitted)
-    },
-    { deep: true },
-  )
-  watch(
-    () => props.modelValue,
-    (v) => {
-      if ((v || '') === lastEmitted) return
-      const sp = splitContent(v)
-      bodyText.value = sp.body
-      images.value = sp.imgs
-      lastEmitted = v || ''
-    },
-  )
-}
-
-// 선택 영역을 마커로 감싸기(굵게/기울임/코드 등)
-function surround(before, after = before, placeholder = '') {
-  const ta = taRef.value
-  if (!ta) return
-  const s = ta.selectionStart
-  const e = ta.selectionEnd
-  const val = bodyText.value
-  const sel = val.slice(s, e) || placeholder
-  bodyText.value = val.slice(0, s) + before + sel + after + val.slice(e)
-  nextTick(() => {
-    ta.focus()
-    const start = s + before.length
-    ta.setSelectionRange(start, start + sel.length)
-  })
-}
-// 선택한 줄들 앞에 접두어 추가(제목/인용/목록 등)
-function linePrefix(prefix) {
-  const ta = taRef.value
-  if (!ta) return
-  const s = ta.selectionStart
-  const e = ta.selectionEnd
-  const val = bodyText.value
-  const lineStart = val.lastIndexOf('\n', s - 1) + 1
-  const block = val.slice(lineStart, e)
-  const prefixed = block
-    .split('\n')
-    .map((ln) => prefix + ln)
-    .join('\n')
-  bodyText.value = val.slice(0, lineStart) + prefixed + val.slice(e)
-  nextTick(() => {
-    ta.focus()
-    ta.setSelectionRange(lineStart, lineStart + prefixed.length)
-  })
-}
-// 현재 위치에 블록 삽입(코드블록/구분선)
-function insertBlock(block) {
-  const ta = taRef.value
-  if (!ta) return
-  const s = ta.selectionStart
-  const val = bodyText.value
-  const nl = s > 0 && val[s - 1] !== '\n' ? '\n' : ''
-  const insert = nl + block + '\n'
-  bodyText.value = val.slice(0, s) + insert + val.slice(s)
-  nextTick(() => {
-    ta.focus()
-    const pos = s + insert.length
-    ta.setSelectionRange(pos, pos)
-  })
-}
-function insertLink() {
-  const ta = taRef.value
-  if (!ta) return
-  const s = ta.selectionStart
-  const e = ta.selectionEnd
-  const val = bodyText.value
-  const sel = val.slice(s, e) || '링크텍스트'
-  const md = `[${sel}](url)`
-  bodyText.value = val.slice(0, s) + md + val.slice(e)
-  nextTick(() => {
-    ta.focus()
-    const urlStart = s + sel.length + 3
-    ta.setSelectionRange(urlStart, urlStart + 3)
-  })
-}
-
-// 이미지: 파일 → 압축 → 서버 업로드 → 첨부 목록에 추가(본문 텍스트엔 미노출)
-function pickImage() {
-  imgInput.value?.click()
-}
-async function onImagePick(e) {
-  const file = e.target.files?.[0]
-  e.target.value = ''
-  if (!file) return
-  imgBusy.value = true
-  imgMsg.value = '이미지 업로드 중…'
-  try {
-    const url = await uploadCompressed(file)
-    const alt = file.name.replace(/\.[^.]+$/, '')
-    images.value = [...images.value, { url, alt }]
-    imgMsg.value = ''
-  } catch (err) {
-    flashImgMsg(err?.response?.data?.message || '이미지 업로드에 실패했습니다.')
-  } finally {
-    imgBusy.value = false
-  }
-}
-function removeImage(i) {
-  images.value = images.value.filter((_, idx) => idx !== i)
-}
-
-/* ===================== 웹/APK: Toast UI 위지윅 ===================== */
-const el = ref(null)
-let editor = null
-
 onMounted(() => {
-  if (isElectron) return
   editor = new Editor({
     el: el.value,
     height: props.height,
     initialEditType: props.initialEditType,
-    hideModeSwitch: true,
-    plugins: [codeSyntaxHighlight],
+    hideModeSwitch: true, // 마크다운/위지윅 전환 탭 숨김 (WYSIWYG 전용)
+    plugins: [codeSyntaxHighlight], // 코드 구문 강조
     initialValue: props.modelValue || '',
     placeholder: props.placeholder,
     usageStatistics: false,
@@ -210,10 +60,10 @@ onMounted(() => {
   })
 })
 
+// 외부 값 변경(수정 로드, 제출 후 초기화 등)만 에디터에 반영. echo 는 무시.
 watch(
   () => props.modelValue,
   (val) => {
-    if (isElectron) return
     const v = val || ''
     if (v === lastEmitted) return
     if (editor && v !== editor.getMarkdown()) {
@@ -230,147 +80,5 @@ onBeforeUnmount(() => {
 </script>
 
 <template>
-  <!-- PC(Electron): textarea 기반 마크다운 에디터 (툴바 + 이미지 첨부 썸네일) — 한글 IME 정상 -->
-  <div v-if="isElectron" class="mde">
-    <div class="mde-toolbar">
-      <button type="button" title="제목" @click="linePrefix('## ')"><span class="t-h">H</span></button>
-      <button type="button" title="굵게" @click="surround('**', '**', '굵게')"><b>B</b></button>
-      <button type="button" title="기울임" @click="surround('*', '*', '기울임')"><i>I</i></button>
-      <button type="button" title="취소선" @click="surround('~~', '~~', '취소선')"><s>S</s></button>
-      <span class="mde-div"></span>
-      <button type="button" title="인용" @click="linePrefix('&gt; ')">❝</button>
-      <button type="button" title="목록" @click="linePrefix('- ')">•</button>
-      <button type="button" title="번호 목록" @click="linePrefix('1. ')">1.</button>
-      <button type="button" title="체크리스트" @click="linePrefix('- [ ] ')">☑</button>
-      <span class="mde-div"></span>
-      <button type="button" title="링크" @click="insertLink()">🔗</button>
-      <button type="button" :title="imgBusy ? '이미지 처리 중…' : '이미지 첨부'" :disabled="imgBusy" @click="pickImage()">🖼</button>
-      <button type="button" title="인라인 코드" @click="surround('`', '`', '코드')">&lt;/&gt;</button>
-      <button type="button" title="코드 블록" @click="insertBlock('```\n코드\n```')">{ }</button>
-      <button type="button" title="구분선" @click="insertBlock('---')">―</button>
-      <input ref="imgInput" type="file" accept="image/*" hidden @change="onImagePick" />
-    </div>
-    <p v-if="imgMsg" class="mde-imgmsg">{{ imgMsg }}</p>
-    <!-- 첨부 이미지 썸네일 — 본문엔 텍스트만, 이미지는 여기서 확인/삭제 -->
-    <div v-if="images.length" class="mde-thumbs">
-      <div v-for="(img, i) in images" :key="i" class="mde-thumb-wrap">
-        <img :src="img.url" class="mde-thumb" alt="" :title="img.alt || img.url" />
-        <button type="button" class="mde-thumb-del" title="이미지 제거" @click="removeImage(i)">×</button>
-      </div>
-    </div>
-    <textarea
-      ref="taRef"
-      v-model="bodyText"
-      class="mde-textarea"
-      :placeholder="placeholder"
-      :style="{ height }"
-    ></textarea>
-  </div>
-
-  <!-- 웹/APK: Toast UI 위지윅 -->
-  <div v-else ref="el"></div>
+  <div ref="el"></div>
 </template>
-
-<style scoped>
-.mde {
-  border: 1px solid var(--color-border);
-  border-radius: 6px;
-  overflow: hidden;
-  background: var(--color-background-soft);
-}
-.mde-toolbar {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: center;
-  gap: 0.15rem;
-  padding: 0.4rem 0.5rem;
-  border-bottom: 1px solid var(--color-border);
-  background: var(--color-background);
-}
-.mde-toolbar button {
-  min-width: 1.9rem;
-  height: 1.9rem;
-  padding: 0 0.4rem;
-  border: 0;
-  border-radius: 4px;
-  background: transparent;
-  color: var(--color-text);
-  font-size: 0.9rem;
-  cursor: pointer;
-  line-height: 1;
-}
-.mde-toolbar button:hover {
-  background: var(--color-background-mute);
-}
-.mde-toolbar .t-h {
-  font-weight: 800;
-}
-.mde-div {
-  width: 1px;
-  height: 1.1rem;
-  margin: 0 0.25rem;
-  background: var(--color-border);
-}
-.mde-imgmsg {
-  margin: 0;
-  padding: 0.4rem 0.9rem;
-  font-size: 0.82rem;
-  color: hsla(160, 100%, 32%, 1);
-  background: hsla(160, 100%, 37%, 0.08);
-  border-bottom: 1px solid var(--color-border);
-}
-.mde-thumbs {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 0.6rem;
-  padding: 0.6rem;
-  border-bottom: 1px solid var(--color-border);
-  background: var(--color-background);
-}
-.mde-thumb-wrap {
-  position: relative;
-  flex: 0 0 auto;
-}
-.mde-thumb {
-  display: block;
-  height: 120px;
-  max-width: 220px;
-  object-fit: cover;
-  border: 1px solid var(--color-border);
-  border-radius: 6px;
-}
-.mde-thumb-del {
-  position: absolute;
-  top: 5px;
-  right: 5px;
-  width: 1.5rem;
-  height: 1.5rem;
-  padding: 0;
-  border: 0;
-  border-radius: 50%;
-  background: rgba(0, 0, 0, 0.55);
-  color: #fff;
-  font-size: 1.05rem;
-  line-height: 1;
-  cursor: pointer;
-}
-.mde-thumb-del:hover {
-  background: rgba(0, 0, 0, 0.78);
-}
-.mde-textarea {
-  display: block;
-  width: 100%;
-  box-sizing: border-box;
-  padding: 0.8rem 0.9rem;
-  border: 0;
-  background: var(--color-background);
-  color: var(--color-text);
-  font-family: inherit;
-  font-size: 0.95rem;
-  line-height: 1.7;
-  resize: vertical;
-}
-.mde-textarea:focus {
-  outline: none;
-}
-</style>