diff --git a/plugins/sync/frontend/src/SyncSettings.svelte b/plugins/sync/frontend/src/SyncSettings.svelte
new file mode 100644
index 0000000..09e6165
--- /dev/null
+++ b/plugins/sync/frontend/src/SyncSettings.svelte
@@ -0,0 +1,471 @@
+<script>
+  export let api = null
+
+  let settings = null
+  let loading = false
+  let errorMsg = ''
+  let resultMsg = ''
+  let resultKind = ''
+
+  let serverUrl = ''
+  let username = ''
+  let password = ''
+  let syncInterval = 0
+  let autoSync = false
+  let showDisconnectConfirm = false
+  let showResetKeyConfirm = false
+  let connectionOk = null
+
+  function wailsCall(method, ...args) {
+    try {
+      if (window['go'] && window['go']['main'] && window['go']['main']['App']) {
+        const fn = window['go']['main']['App'][method]
+        if (typeof fn === 'function') return fn(...args)
+      }
+    } catch (e) { console.error('Wails error:', method, e) }
+    return Promise.reject(new Error('Wails not connected: ' + method))
+  }
+
+  async function load() {
+    try {
+      settings = await wailsCall('SyncStatus')
+      if (settings) {
+        serverUrl = settings.serverUrl || ''
+        syncInterval = settings.syncInterval || 0
+        autoSync = settings.syncInterval > 0
+      }
+    } catch (e) { settings = null }
+  }
+
+  load()
+
+  async function testConnection() {
+    loading = true
+    errorMsg = ''
+    resultKind = ''
+    connectionOk = null
+    try {
+      await wailsCall('SyncTestConnection', serverUrl, username, password)
+      connectionOk = true
+      resultMsg = 'connection ok'
+    } catch (e) {
+      connectionOk = false
+      resultMsg = 'connection failed: ' + String(e)
+    }
+    loading = false
+  }
+
+  async function configureSync() {
+    loading = true
+    errorMsg = ''
+    resultKind = ''
+    try {
+      await wailsCall('SyncConfigure', serverUrl, username, password)
+      resultMsg = 'configured'
+      username = ''
+      password = ''
+      await load()
+    } catch (e) {
+      errorMsg = String(e)
+    }
+    loading = false
+  }
+
+  function syncResultWarning(result) {
+    const conflicts = Array.isArray(result?.conflicts) ? result.conflicts : []
+    const applyErrors = Array.isArray(result?.applyErrors) ? result.applyErrors : []
+    const parts = []
+    if (conflicts.length > 0) {
+      parts.push(conflicts.length + ' conflict(s)')
+    }
+    if (applyErrors.length > 0) {
+      parts.push(applyErrors.length + ' error(s)')
+    }
+    return parts.join(' · ')
+  }
+
+  async function runSyncNow() {
+    loading = true
+    errorMsg = ''
+    resultKind = ''
+    try {
+      const r = await wailsCall('SyncNow')
+      const summary = 'pushed ' + (r?.pushed || 0) + ', pulled ' + (r?.pulled || 0)
+      const warning = syncResultWarning(r)
+      resultMsg = warning ? summary + ' · ' + warning : summary
+      resultKind = warning ? 'warning' : ''
+      await load()
+    } catch (e) {
+      errorMsg = String(e)
+    }
+    loading = false
+  }
+
+  async function saveInterval() {
+    loading = true
+    errorMsg = ''
+    resultKind = ''
+    try {
+      await wailsCall('SyncSetInterval', syncInterval)
+      resultMsg = 'settings saved'
+      resultKind = ''
+    } catch (e) {
+      errorMsg = String(e)
+    }
+    loading = false
+  }
+
+  async function setAutoSync() {
+    const minutes = autoSync ? 5 : 0
+    syncInterval = minutes
+    loading = true
+    errorMsg = ''
+    resultKind = ''
+    try {
+      await wailsCall('SyncSetInterval', minutes)
+      resultMsg = autoSync ? 'auto-sync enabled' : 'auto-sync disabled'
+      resultKind = ''
+    } catch (e) {
+      errorMsg = String(e)
+    }
+    loading = false
+  }
+
+  function confirmDisconnect() {
+    showDisconnectConfirm = true
+  }
+
+  async function doDisconnect() {
+    showDisconnectConfirm = false
+    loading = true
+    resultKind = ''
+    try {
+      await wailsCall('SyncDisconnect')
+      resultMsg = 'disconnected'
+      await load()
+    } catch (e) { errorMsg = String(e) }
+    loading = false
+  }
+
+  function confirmResetKey() {
+    showResetKeyConfirm = true
+  }
+
+  async function doResetKey() {
+    showResetKeyConfirm = false
+    loading = true
+    resultKind = ''
+    try {
+      await wailsCall('ResetSyncKey')
+      resultMsg = 'key reset'
+      await load()
+    } catch (e) { errorMsg = String(e) }
+    loading = false
+  }
+
+  function statusLabel(s) {
+    if (!s) return 'not configured'
+    const labels = {
+      'connected': 'connected',
+      'disconnected': 'disconnected',
+      'disabled': 'not configured',
+      'error': 'error',
+      'revoked': 'revoked',
+    }
+    return labels[s] || s
+  }
+</script>
+
+<div class="settings-section">
+  <h2>Sync</h2>
+  <p class="section-desc">Synchronize your vault across devices.</p>
+
+  {#if errorMsg}
+    <div class="error-msg">{errorMsg}</div>
+  {/if}
+  {#if resultMsg && !errorMsg}
+    <div class="result-msg" class:warning={resultKind === 'warning'}>{resultMsg}</div>
+  {/if}
+
+  {#if settings && settings.configured}
+    <div class="settings-card">
+      <div class="sync-info">
+        <div class="info-row">
+          <span class="info-label">Status</span>
+          <span class="info-value" class:status-ok={settings.statusLabel === 'connected'} class:status-err={settings.statusLabel === 'error' || settings.statusLabel === 'revoked'}>
+            {statusLabel(settings.statusLabel)}
+          </span>
+        </div>
+        {#if settings.serverUrl}
+          <div class="info-row">
+            <span class="info-label">Server URL</span>
+            <span class="info-value mono">{settings.serverUrl}</span>
+          </div>
+        {/if}
+        {#if settings.deviceName}
+          <div class="info-row">
+            <span class="info-label">Device Name</span>
+            <span class="info-value">{settings.deviceName}</span>
+          </div>
+        {/if}
+        {#if settings.deviceId}
+          <div class="info-row">
+            <span class="info-label">Device ID</span>
+            <span class="info-value mono">{settings.deviceId}</span>
+          </div>
+        {/if}
+        {#if settings.lastSyncAt}
+          <div class="info-row">
+            <span class="info-label">Last Sync</span>
+            <span class="info-value">{settings.lastSyncAt}</span>
+          </div>
+        {/if}
+        {#if settings.lastError}
+          <div class="info-row">
+            <span class="info-label">Last Error</span>
+            <span class="info-value error">{settings.lastError}</span>
+          </div>
+        {/if}
+      </div>
+    </div>
+
+    <div class="sync-actions">
+      <button class="btn btn-primary" on:click={runSyncNow} disabled={loading}>
+        Sync Now
+      </button>
+      <button class="btn" on:click={confirmDisconnect} disabled={loading}>
+        Disconnect
+      </button>
+      <button class="btn" on:click={confirmResetKey} disabled={loading}>
+        Reset Key
+      </button>
+    </div>
+
+    <div class="sync-interval">
+      <label>
+        <span class="label-text">Sync Interval (minutes)</span>
+        <div class="interval-row">
+          <input type="number" bind:value={syncInterval} min="0" placeholder="0" />
+          <button class="btn btn-sm" on:click={saveInterval} disabled={loading}>Save</button>
+        </div>
+      </label>
+    </div>
+
+    <div class="auto-sync-toggle">
+      <label class="toggle-label">
+        <input type="checkbox" bind:checked={autoSync} on:change={setAutoSync} disabled={loading} />
+        <span class="label-text">Auto-sync</span>
+      </label>
+    </div>
+  {:else}
+    <div class="settings-card">
+      <div class="sync-setup">
+        <div class="form-group">
+          <label>
+            <span class="label-text">Server URL</span>
+            <input type="text" placeholder="https://example.com" bind:value={serverUrl} />
+          </label>
+        </div>
+        <div class="form-group">
+          <label>
+            <span class="label-text">Username</span>
+            <input type="text" bind:value={username} />
+          </label>
+        </div>
+        <div class="form-group">
+          <label>
+            <span class="label-text">Password</span>
+            <input type="password" bind:value={password} />
+          </label>
+        </div>
+        <div class="sync-setup-actions">
+          <button class="btn" on:click={testConnection} disabled={loading || !serverUrl}>
+            Test Connection
+          </button>
+          <button class="btn btn-primary" on:click={configureSync}
+                  disabled={loading || !serverUrl || !username || !password}>
+            Connect
+          </button>
+        </div>
+        {#if connectionOk !== null}
+          <div class="connection-result" class:ok={connectionOk} class:fail={!connectionOk}>
+            {connectionOk ? 'Test OK' : 'Connection failed'}
+          </div>
+        {/if}
+      </div>
+    </div>
+  {/if}
+</div>
+
+{#if showDisconnectConfirm}
+  <button class="modal-overlay" on:click={() => showDisconnectConfirm = false}>
+    <div class="modal">
+      <h3>Disconnect from Sync Server</h3>
+      <p class="modal-desc">This will disconnect this device from the sync server and revoke the device token. You can reconnect later.</p>
+      <div class="modal-actions">
+        <button class="btn btn-danger" on:click={doDisconnect}>Disconnect</button>
+        <button class="btn" on:click={() => showDisconnectConfirm = false}>Cancel</button>
+      </div>
+    </div>
+  </button>
+{/if}
+
+{#if showResetKeyConfirm}
+  <button class="modal-overlay" on:click={() => showResetKeyConfirm = false}>
+    <div class="modal">
+      <h3>Reset Sync Key</h3>
+      <p class="modal-desc">This will remove the stored device token. You will need to re-pair this device with the server.</p>
+      <div class="modal-actions">
+        <button class="btn btn-danger" on:click={doResetKey}>Reset Key</button>
+        <button class="btn" on:click={() => showResetKeyConfirm = false}>Cancel</button>
+      </div>
+    </div>
+  </button>
+{/if}
+
+<style>
+  .settings-section {
+    padding: 1.5rem;
+    max-width: 600px;
+  }
+  .settings-section h2 {
+    margin: 0 0 0.25rem 0;
+    font-size: 1.2rem;
+    color: var(--text, #e0e0e0);
+  }
+  .section-desc {
+    color: var(--text-dim, #888);
+    font-size: 0.85rem;
+    margin-bottom: 1.25rem;
+    line-height: 1.4;
+  }
+  .settings-card {
+    background: var(--surface-alt, #1e1e30);
+    border: 1px solid var(--border, #2a2a3e);
+    border-radius: 8px;
+    padding: 1rem 1.25rem;
+    margin-bottom: 1rem;
+  }
+  .info-row {
+    display: flex;
+    padding: 0.4rem 0;
+    border-bottom: 1px solid var(--border, #2a2a3e);
+    font-size: 0.9rem;
+  }
+  .info-row:last-child { border-bottom: none; }
+  .info-label {
+    width: 180px;
+    min-width: 180px;
+    color: var(--text-dim, #888);
+  }
+  .info-value { color: var(--text, #e0e0e0); word-break: break-all; }
+  .info-value.mono { font-family: monospace; font-size: 0.85rem; }
+  .info-value.error { color: #ff6b6b; }
+  .status-ok { color: #34d399; font-weight: 600; }
+  .status-err { color: #ff6b6b; }
+  .sync-actions {
+    display: flex;
+    gap: 0.5rem;
+    flex-wrap: wrap;
+    margin-bottom: 1rem;
+  }
+  .sync-interval {
+    margin-bottom: 0.75rem;
+  }
+  .interval-row {
+    display: flex;
+    gap: 0.5rem;
+    align-items: center;
+  }
+  .interval-row input {
+    width: 100px;
+  }
+  .auto-sync-toggle {
+    margin-bottom: 0;
+  }
+  .toggle-label {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    cursor: pointer;
+    font-size: 0.9rem;
+  }
+  .toggle-label input[type="checkbox"] {
+    width: 16px;
+    height: 16px;
+    accent-color: #6c5ce7;
+  }
+  .sync-setup .form-group { margin-bottom: 1rem; }
+  .sync-setup .form-group:last-of-type { margin-bottom: 0; }
+  .sync-setup-actions {
+    display: flex;
+    gap: 0.5rem;
+    margin-top: 1rem;
+  }
+  .connection-result {
+    margin-top: 0.75rem;
+    padding: 0.4rem 0.75rem;
+    border-radius: 6px;
+    font-size: 0.85rem;
+  }
+  .connection-result.ok {
+    background: rgba(52, 211, 153, 0.1);
+    border: 1px solid rgba(52, 211, 153, 0.3);
+    color: #34d399;
+  }
+  .connection-result.fail {
+    background: rgba(255, 107, 107, 0.1);
+    border: 1px solid rgba(255, 107, 107, 0.3);
+    color: #ff6b6b;
+  }
+  .error-msg {
+    padding: 0.5rem 0.75rem;
+    margin-bottom: 0.75rem;
+    background: rgba(255, 107, 107, 0.1);
+    border: 1px solid rgba(255, 107, 107, 0.3);
+    border-radius: 6px;
+    color: #ff6b6b;
+    font-size: 0.85rem;
+  }
+  .result-msg {
+    padding: 0.5rem 0.75rem;
+    margin-bottom: 0.75rem;
+    background: rgba(52, 211, 153, 0.1);
+    border: 1px solid rgba(52, 211, 153, 0.3);
+    border-radius: 6px;
+    color: #34d399;
+    font-size: 0.85rem;
+  }
+  .result-msg.warning {
+    background: rgba(245, 158, 11, 0.1);
+    border-color: rgba(245, 158, 11, 0.3);
+    color: #f59e0b;
+  }
+  .modal-overlay {
+    position: fixed;
+    inset: 0;
+    background: rgba(0,0,0,0.6);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 1000;
+    border: none;
+    padding: 0;
+    cursor: pointer;
+    width: 100%;
+    color: inherit;
+    font: inherit;
+  }
+  .modal {
+    background: var(--surface, #1e1e2e);
+    border: 1px solid var(--border, #2a2a3e);
+    border-radius: 10px;
+    padding: 1.5rem;
+    max-width: 420px;
+    width: 90%;
+    cursor: default;
+  }
+  .modal h3 { margin: 0 0 0.75rem 0; }
+  .modal-desc { color: var(--text-dim, #888); font-size: 0.9rem; line-height: 1.5; margin-bottom: 1rem; }
+  .modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }
+</style>