diff --git a/src/main/common/api.js b/src/main/common/api.js
index 49fdb84..1129fef 100644
--- a/src/main/common/api.js
+++ b/src/main/common/api.js
@@ -66,7 +66,7 @@ export default {
       return dbData.find(d => d._id === key) || {};
     },
     remove({key}) {
-      key = typeof key === 'object' ? key.id : key;
+      key = typeof key === 'object' ? key._id : key;
       let dbData = getData(dbPath);
       let find = false;
       dbData.some((d, i) => {
diff --git a/src/renderer/App.vue b/src/renderer/App.vue
index 117d0c6..b5ffad2 100644
--- a/src/renderer/App.vue
+++ b/src/renderer/App.vue
@@ -99,6 +99,9 @@ export default {
     ipcRenderer.on('new-window', this.newWindow);
     // 超级面板打开插件
     ipcRenderer.on('superPanel-openPlugin', (e, args) => {
+      ipcRenderer.send('msg-trigger', {
+        type: 'showMainWindow',
+      });
       this.openPlugin({
         cmd: args.cmd,
         plugin: args.plugin,
diff --git a/src/renderer/pages/plugins/index.vue b/src/renderer/pages/plugins/index.vue
index 625b8c3..e09c001 100644
--- a/src/renderer/pages/plugins/index.vue
+++ b/src/renderer/pages/plugins/index.vue
@@ -68,6 +68,19 @@ export default {
           }),
         });
       }
+      if (event.channel === 'removeFeature') {
+        this.commonUpdate({
+          devPlugins: this.devPlugins.map(plugin => {
+            if (plugin.name === this.query.name) {
+              return {
+                ...plugin,
+                features: plugin.features.filter(fe => fe.code !== event.args[0].code)
+              }
+            }
+            return plugin;
+          }),
+        });
+      }
     })
   },
   methods: {
diff --git a/src/renderer/pages/search/subpages/dev.vue b/src/renderer/pages/search/subpages/dev.vue
index 6e5db98..f6c9762 100644
--- a/src/renderer/pages/search/subpages/dev.vue
+++ b/src/renderer/pages/search/subpages/dev.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="dev-container">
     <div class="dev-detail" v-if="devPlugin.length">
-      <a-menu v-model="currentSelect" style="width: 200px; height: 100%" mode="vertical">
+      <a-menu v-model="currentSelect" style="width: 256px; height: 100%" mode="vertical">
         <a-menu-item @click="currentSelect = [index]" v-for="(plugin, index) in devPlugin" :key="index">
           <div class="menu-item">
             <img width="40" height="40" :src="plugin.icon" />
@@ -160,6 +160,10 @@ export default {
        }
        .desc {
          color: #999;
+         width: 180px;
+         overflow: hidden;
+         text-overflow:ellipsis;
+         white-space: nowrap;
        }
      }
    }
@@ -170,11 +174,12 @@ export default {
      width: 100%;
    }
    .plugin-detail {
-     padding: 20px;
+     padding: 20px 20px 0 20px;
      box-sizing: border-box;
      flex: 1;
+     width: 500px;
      .detail-container {
-       height: 340px;
+       height: 320px;
        overflow: auto;
        max-height: 320px;
        width: 100%;
@@ -202,6 +207,8 @@ export default {
      .desc-item {
        border-bottom: 1px solid #ddd;
        padding: 10px 0;
+       width: 100%;
+       overflow: auto;
        .desc-title {
          display: flex;
          align-items: center;
diff --git a/src/renderer/pages/search/subpages/plugin.vue b/src/renderer/pages/search/subpages/plugin.vue
index f6d14aa..18f1f9e 100644
--- a/src/renderer/pages/search/subpages/plugin.vue
+++ b/src/renderer/pages/search/subpages/plugin.vue
@@ -111,9 +111,10 @@ export default {
     overflow: auto;
   }
   .plugin-detail {
-    padding: 20px;
+    padding: 20px 20px 0 20px;
     box-sizing: border-box;
     flex: 1;
+    height: 100%;
     .plugin-top {
       display: flex;
       align-items: flex-start;
diff --git a/static/preload.js b/static/preload.js
index 5b49262..2ba6a2f 100644
--- a/static/preload.js
+++ b/static/preload.js
@@ -1,6 +1,12 @@
+const {getData, getlocalDataFile, saveData} = require("./utils");
+
 const marked = require("marked");
 const rendererMD = new marked.Renderer();
 const path = require('path');
+const os = require('os');
+
+const appPath = path.join(getlocalDataFile());
+const dbPath = path.join(appPath, './db.json');
 
 let filePath = '';
 function getQueryVariable(variable) {
@@ -141,60 +147,89 @@ window.utools = window.rubick = {
   },
   db: {
     put(data) {
-      ipcRenderer.send('msg-trigger', {
-        type: 'db.put',
-        data,
+      data._rev = '';
+      let dbData = getData(dbPath) || [];
+      let target = [];
+      dbData.some((d, i) => {
+        if (d._id === data._id) {
+          target = [d, i]
+          return true;
+        }
+        return false;
       });
-      return new Promise((resolve, reject) => {
-        ipcRenderer.once(`msg-back-db.put`, (e, result) => {
-          result ? resolve(result) : reject();
-        });
-      })
+
+      // 更新
+      if (target[0]) {
+        dbData[target[1]] = data;
+      } else {
+        dbData.push(data);
+      }
+      saveData(dbPath, dbData);
+      return {
+        id: data._id,
+        ok: true,
+        rev: '',
+      }
     },
     get(key) {
-      ipcRenderer.send('msg-trigger', {
-        type: 'db.get',
-        key,
-      });
-      return new Promise((resolve, reject) => {
-        ipcRenderer.once(`msg-back-db.get`, (e, result) => {
-          result ? resolve(result) : reject();
-        });
-      })
+      const dbData = getData(dbPath) || [];
+
+      return dbData.find(d => d._id === key);
     },
     remove(key) {
-      ipcRenderer.send('msg-trigger', {
-        type: 'db.remove',
-        key,
+      key = typeof key === 'object' ? key._id : key;
+      let dbData = getData(dbPath);
+      let find = false;
+      dbData.some((d, i) => {
+        if (d._id === key) {
+          dbData.splice(i, 1);
+          find = true;
+          return true;
+        }
+        return false;
       });
-      return new Promise((resolve, reject) => {
-        ipcRenderer.once(`msg-back-db.remove`, (e, result) => {
-          result ? resolve(result) : reject();
-        });
-      })
-    },
-    allDocs(key) {
-      ipcRenderer.send('msg-trigger', {
-        type: 'db.allDocs',
-        key,
-      });
-      return new Promise((resolve, reject) => {
-        ipcRenderer.once(`msg-back-db.allDocs`, (e, result) => {
-          console.log(result);
-          result ? resolve(result) : reject();
-        });
-      })
+      if (find) {
+        saveData(dbPath, dbData);
+        return {
+          id: key,
+          ok: true,
+          rev: '',
+        }
+      } else {
+        return {
+          id: key,
+          ok: false,
+          rev: '',
+        }
+      }
     },
     bulkDocs(docs) {
-      ipcRenderer.send('msg-trigger', {
-        type: 'db.bulkDocs',
-        key,
+      const dbData = getData(dbPath);
+      dbData.forEach((d, i) => {
+        const result = docs.find(data => data._id === d._id);
+        if (result) {
+          dbData[i] = result;
+        }
       });
-      return new Promise((resolve, reject) => {
-        ipcRenderer.once(`msg-back-db.bulkDocs`, (e, result) => {
-          result ? resolve(result) : reject();
-        });
-      })
+      saveData(dbPath, dbData);
+      return docs.map(d => ({
+        id: d._id,
+        success: true,
+        rev: '',
+      }))
+    },
+    allDocs(key) {
+      const dbData = getData(dbPath);
+      if (!key) {
+        return dbData;
+      }
+      if (typeof key === 'string') {
+        return dbData.filter(d => d._id.indexOf(key) >= 0);
+      }
+      if (Array.isArray(key)) {
+        return dbData.filter(d => key.indexOf(d._id) >= 0);
+      }
+      return [];
     }
   },
   isDarkColors() {
@@ -211,6 +246,10 @@ window.utools = window.rubick = {
   setFeature(feature) {
     ipcRenderer.sendToHost('setFeature', {feature});
   },
+
+  removeFeature(code) {
+    ipcRenderer.sendToHost('removeFeature', {code});
+  },
   ubrowser: {
     winId: '',
     async goto(md, opts) {
@@ -282,9 +321,19 @@ window.utools = window.rubick = {
       }
     },
   },
+
+  // 系统
   shellOpenExternal(url) {
     shell.openExternal(url);
-  }
+  },
+
+  isMacOs() {
+    return os.type() === 'Darwin';
+  },
+
+  isWindows() {
+    return os.type() === 'Windows_NT';
+  },
 }
 const preloadPath = getQueryVariable('preloadPath') || './preload.js';
 
diff --git a/static/utils.js b/static/utils.js
new file mode 100644
index 0000000..581fb21
--- /dev/null
+++ b/static/utils.js
@@ -0,0 +1,27 @@
+const fs = require("fs");
+
+const getlocalDataFile = () => {
+  let localDataFile = process.env.HOME;
+  if (!localDataFile) {
+    localDataFile = process.env.LOCALAPPDATA;
+  }
+  return localDataFile;
+};
+
+function saveData(path, value) {
+  fs.writeFileSync(path, JSON.stringify(value));
+}
+
+function getData(path, defaultValue) {
+  try {
+    return JSON.parse(fs.readFileSync(path, 'utf8'));
+  } catch (e) {
+    return defaultValue || undefined;
+  }
+}
+
+module.exports = {
+  getlocalDataFile,
+  saveData,
+  getData
+}