diff --git a/web/src/components/TimelineSidebar.tsx b/web/src/components/TimelineSidebar.tsx
new file mode 100644
index 00000000..483e12d6
--- /dev/null
+++ b/web/src/components/TimelineSidebar.tsx
@@ -0,0 +1,23 @@
+import classNames from "classnames";
+import SearchBar from "./SearchBar";
+import TagList from "./TagList";
+
+interface Props {
+  className?: string;
+}
+
+const TimelineSidebar = (props: Props) => {
+  return (
+    <aside
+      className={classNames(
+        "relative w-full h-auto max-h-screen overflow-auto hide-scrollbar flex flex-col justify-start items-start",
+        props.className,
+      )}
+    >
+      <SearchBar />
+      <TagList />
+    </aside>
+  );
+};
+
+export default TimelineSidebar;
diff --git a/web/src/components/TimelineSidebarDrawer.tsx b/web/src/components/TimelineSidebarDrawer.tsx
new file mode 100644
index 00000000..a281f99f
--- /dev/null
+++ b/web/src/components/TimelineSidebarDrawer.tsx
@@ -0,0 +1,37 @@
+import { Drawer, IconButton } from "@mui/joy";
+import { useEffect, useState } from "react";
+import { useLocation } from "react-router-dom";
+import Icon from "./Icon";
+import TimelineSidebar from "./TimelineSidebar";
+
+const TimelineSidebarDrawer = () => {
+  const location = useLocation();
+  const [open, setOpen] = useState(false);
+
+  useEffect(() => {
+    setOpen(false);
+  }, [location.pathname]);
+
+  const toggleDrawer = (inOpen: boolean) => (event: React.KeyboardEvent | React.MouseEvent) => {
+    if (event.type === "keydown" && ((event as React.KeyboardEvent).key === "Tab" || (event as React.KeyboardEvent).key === "Shift")) {
+      return;
+    }
+
+    setOpen(inOpen);
+  };
+
+  return (
+    <>
+      <IconButton onClick={toggleDrawer(true)}>
+        <Icon.Search className="w-5 h-auto dark:text-gray-400" />
+      </IconButton>
+      <Drawer anchor="right" size="sm" open={open} onClose={toggleDrawer(false)}>
+        <div className="w-full h-full px-5 bg-zinc-100 dark:bg-zinc-900">
+          <TimelineSidebar className="py-4" />
+        </div>
+      </Drawer>
+    </>
+  );
+};
+
+export default TimelineSidebarDrawer;
diff --git a/web/src/pages/Timeline.tsx b/web/src/pages/Timeline.tsx
index d5868456..0bac270b 100644
--- a/web/src/pages/Timeline.tsx
+++ b/web/src/pages/Timeline.tsx
@@ -1,6 +1,5 @@
 import { Button, Divider, IconButton } from "@mui/joy";
 import classNames from "classnames";
-import { sum } from "lodash-es";
 import { Fragment, useEffect, useRef, useState } from "react";
 import ActivityCalendar from "@/components/ActivityCalendar";
 import Empty from "@/components/Empty";
@@ -9,6 +8,8 @@ import showMemoEditorDialog from "@/components/MemoEditor/MemoEditorDialog";
 import MemoFilter from "@/components/MemoFilter";
 import MemoView from "@/components/MemoView";
 import MobileHeader from "@/components/MobileHeader";
+import TimelineSidebar from "@/components/TimelineSidebar";
+import TimelineSidebarDrawer from "@/components/TimelineSidebarDrawer";
 import { memoServiceClient } from "@/grpcweb";
 import { DAILY_TIMESTAMP, DEFAULT_MEMO_LIMIT } from "@/helpers/consts";
 import { getNormalizedTimeString, getTimeStampByDate } from "@/helpers/datetime";
@@ -120,50 +121,53 @@ const Timeline = () => {
 
   return (
     <section className="@container w-full max-w-5xl min-h-full flex flex-col justify-start items-center sm:pt-3 md:pt-6 pb-8">
-      <MobileHeader />
-      <div className="w-full px-4 sm:px-6">
-        <div className="w-full shadow flex flex-col justify-start items-start px-4 py-3 rounded-xl bg-white dark:bg-zinc-800 text-black dark:text-gray-300">
-          <div className="relative w-full flex flex-row justify-between items-center">
-            <div>
-              <div
-                className="py-1 flex flex-row justify-start items-center select-none opacity-80"
-                onClick={() => setSelectedDay(undefined)}
-              >
-                <Icon.GanttChartSquare className="w-6 h-auto mr-1 opacity-80" />
-                <span className="text-lg">{t("timeline.title")}</span>
+      {!md && (
+        <MobileHeader>
+          <TimelineSidebarDrawer />
+        </MobileHeader>
+      )}
+      <div className={classNames("w-full flex flex-row justify-start items-start px-4 sm:px-6 gap-4")}>
+        <div className={classNames(md ? "w-[calc(100%-15rem)]" : "w-full")}>
+          <div className="w-full shadow flex flex-col justify-start items-start px-4 py-3 rounded-xl bg-white dark:bg-zinc-800 text-black dark:text-gray-300">
+            <div className="relative w-full flex flex-row justify-between items-center">
+              <div>
+                <div
+                  className="py-1 flex flex-row justify-start items-center select-none opacity-80"
+                  onClick={() => setSelectedDay(undefined)}
+                >
+                  <Icon.GanttChartSquare className="w-6 h-auto mr-1 opacity-80" />
+                  <span className="text-lg">{t("timeline.title")}</span>
+                </div>
+              </div>
+              <div className="flex justify-end items-center gap-2">
+                <IconButton variant="outlined" size="sm" onClick={() => handleNewMemo()}>
+                  <Icon.Plus className="w-5 h-auto" />
+                </IconButton>
               </div>
             </div>
-            <div className="flex justify-end items-center gap-2">
-              <IconButton variant="outlined" size="sm" onClick={() => handleNewMemo()}>
-                <Icon.Plus className="w-5 h-auto" />
-              </IconButton>
-            </div>
-          </div>
-          <div className="w-full h-auto flex flex-col justify-start items-start">
-            <MemoFilter className="px-2 my-4" />
+            <div className="w-full h-auto flex flex-col justify-start items-start">
+              <MemoFilter className="px-2 my-4" />
 
-            {groupedByMonth.map((group, index) => (
-              <Fragment key={group.month}>
-                <div className={classNames("flex justify-start items-start w-full mt-2 last:mb-4", md ? "flex-row" : "flex-col")}>
-                  <div className={classNames("flex shrink-0", md ? "flex-col w-40 pr-4 pl-2 pb-8" : "flex-row w-full pl-1 mt-2 mb-2")}>
-                    <div className={classNames("w-full flex flex-col", md && "mt-4 mb-2")}>
-                      <span className="font-medium text-3xl leading-none mb-1">
-                        {new Date(group.month).toLocaleString(i18n.language, { month: "short", timeZone: "UTC" })}
-                      </span>
-                      <span className="opacity-60">{new Date(group.month).getUTCFullYear()}</span>
-                      <span className="text-xs opacity-40">Total: {sum(Object.values(group.data))}</span>
+              {groupedByMonth.map((group, index) => (
+                <Fragment key={group.month}>
+                  <div className={classNames("flex flex-col justify-start items-start w-full mt-2 last:mb-4")}>
+                    <div className={classNames("flex shrink-0 flex-row w-full pl-1 mt-2 mb-2")}>
+                      <div className={classNames("w-full flex flex-col")}>
+                        <span className="font-medium text-3xl leading-none mb-1">
+                          {new Date(group.month).toLocaleString(i18n.language, { month: "short", timeZone: "UTC" })}
+                        </span>
+                        <span className="opacity-60">{new Date(group.month).getUTCFullYear()}</span>
+                      </div>
+                      <ActivityCalendar month={group.month} data={group.data} onClick={(date) => setSelectedDay(date)} />
                     </div>
-                    <ActivityCalendar month={group.month} data={group.data} onClick={(date) => setSelectedDay(date)} />
-                  </div>
 
-                  <div className={classNames("flex flex-col justify-start items-start", md ? "w-[calc(100%-8rem)]" : "w-full")}>
-                    {group.memos.map((memo, index) => (
-                      <div
-                        key={`${memo.id}-${memo.displayTime}`}
-                        className={classNames("relative w-full flex flex-col justify-start items-start pl-4 sm:pl-10 pt-0")}
-                      >
-                        <MemoView className="!border !border-gray-100 dark:!border-zinc-700" memo={memo} />
-                        {group.memos.length > 1 && (
+                    <div className={classNames("w-full flex flex-col justify-start items-start")}>
+                      {group.memos.map((memo, index) => (
+                        <div
+                          key={`${memo.id}-${memo.displayTime}`}
+                          className={classNames("relative w-full flex flex-col justify-start items-start pl-4 sm:pl-10 pt-0")}
+                        >
+                          <MemoView className="!border max-w-full !border-gray-100 dark:!border-zinc-700" memo={memo} />
                           <div className="absolute -left-2 sm:left-2 top-4 h-full">
                             {index !== group.memos.length - 1 && (
                               <div className="absolute top-2 left-[7px] h-full w-0.5 bg-gray-200 dark:bg-gray-700 block"></div>
@@ -172,35 +176,40 @@ const Timeline = () => {
                               <Icon.Circle className="w-2 h-auto bg-gray-200 text-gray-200 dark:bg-gray-700 dark:text-gray-700 rounded-full" />
                             </div>
                           </div>
-                        )}
-                      </div>
-                    ))}
+                        </div>
+                      ))}
+                    </div>
                   </div>
+                  {index !== groupedByMonth.length - 1 && <Divider className="w-full !my-4 md:!mb-8 !bg-gray-100 dark:!bg-zinc-700" />}
+                </Fragment>
+              ))}
+              {isRequesting ? (
+                <div className="flex flex-row justify-center items-center w-full my-4 text-gray-400">
+                  <Icon.Loader className="w-4 h-auto animate-spin mr-1" />
+                  <p className="text-sm italic">{t("memo.fetching-data")}</p>
                 </div>
-                {index !== groupedByMonth.length - 1 && <Divider className="w-full !my-4 md:!mb-8 !bg-gray-100 dark:!bg-zinc-700" />}
-              </Fragment>
-            ))}
-            {isRequesting ? (
-              <div className="flex flex-row justify-center items-center w-full my-4 text-gray-400">
-                <Icon.Loader className="w-4 h-auto animate-spin mr-1" />
-                <p className="text-sm italic">{t("memo.fetching-data")}</p>
-              </div>
-            ) : !nextPageTokenRef.current ? (
-              sortedMemos.length === 0 && (
-                <div className="w-full mt-12 mb-8 flex flex-col justify-center items-center italic">
-                  <Empty />
-                  <p className="mt-2 text-gray-600 dark:text-gray-400">{t("message.no-data")}</p>
+              ) : !nextPageTokenRef.current ? (
+                sortedMemos.length === 0 && (
+                  <div className="w-full mt-12 mb-8 flex flex-col justify-center items-center italic">
+                    <Empty />
+                    <p className="mt-2 text-gray-600 dark:text-gray-400">{t("message.no-data")}</p>
+                  </div>
+                )
+              ) : (
+                <div className="w-full flex flex-row justify-center items-center my-4">
+                  <Button variant="plain" endDecorator={<Icon.ArrowDown className="w-5 h-auto" />} onClick={fetchMemos}>
+                    {t("memo.fetch-more")}
+                  </Button>
                 </div>
-              )
-            ) : (
-              <div className="w-full flex flex-row justify-center items-center my-4">
-                <Button variant="plain" endDecorator={<Icon.ArrowDown className="w-5 h-auto" />} onClick={fetchMemos}>
-                  {t("memo.fetch-more")}
-                </Button>
-              </div>
-            )}
+              )}
+            </div>
           </div>
         </div>
+        {md && (
+          <div className="sticky top-0 left-0 shrink-0 -mt-6 w-56 h-full">
+            <TimelineSidebar className="py-6" />
+          </div>
+        )}
       </div>
     </section>
   );
diff --git a/web/vite.config.ts b/web/vite.config.ts
index d668b71c..92b64aed 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -2,7 +2,7 @@ import react from "@vitejs/plugin-react";
 import { resolve } from "path";
 import { defineConfig } from "vite";
 
-let devProxyServer = "http://localhost:8081/";
+let devProxyServer = "http://localhost:8081";
 if (process.env.DEV_PROXY_SERVER && process.env.DEV_PROXY_SERVER.length > 0) {
   console.log("Use devProxyServer from environment: ", process.env.DEV_PROXY_SERVER);
   devProxyServer = process.env.DEV_PROXY_SERVER;