diff --git a/README.md b/README.md
index 513c93bc..54d855c6 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 <p align="center">
   <a href="https://github.com/usememos/memos/stargazers"><img alt="GitHub stars" src="https://img.shields.io/github/stars/usememos/memos" /></a>
   <a href="https://hub.docker.com/r/neosmemo/memos"><img alt="Docker pull" src="https://img.shields.io/docker/pulls/neosmemo/memos.svg" /></a>
-  <img alt="Go report" src="https://goreportcard.com/badge/github.com/usememos/memos" />
+  <a href="https://discord.gg/tfPJa4UmAv"><img alt="Discord" src="https://img.shields.io/badge/discord-chat-5865f2?logo=discord&logoColor=f5f5f5" /></a>
 </p>
 
 <p align="center">
diff --git a/web/src/components/MemoEditor.tsx b/web/src/components/MemoEditor.tsx
index 968b9b0e..4281ab82 100644
--- a/web/src/components/MemoEditor.tsx
+++ b/web/src/components/MemoEditor.tsx
@@ -1,6 +1,7 @@
-import { isNumber, last, toLower } from "lodash";
+import { isNumber, last, toLower, uniq } from "lodash";
 import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
+import { getMatchedNodes } from "../labs/marked";
 import { deleteMemoResource, upsertMemoResource } from "../helpers/api";
 import { TAB_SPACE_WIDTH, UNKNOWN_ID, VISIBILITY_SELECTOR_ITEMS } from "../helpers/consts";
 import { useEditorStore, useLocationStore, useMemoStore, useResourceStore, useTagStore, useUserStore } from "../store/module";
@@ -326,6 +327,13 @@ const MemoEditor = () => {
       toastHelper.error(error.response.data.message);
     }
 
+    // Upsert tag based with content.
+    const matchedNodes = getMatchedNodes(content);
+    const tagNameList = uniq(matchedNodes.filter((node) => node.parserName === "tag").map((node) => node.matchedContent.slice(1)));
+    for (const tagName of tagNameList) {
+      await tagStore.upsertTag(tagName);
+    }
+
     setState((state) => {
       return {
         ...state,
diff --git a/web/src/labs/marked/index.ts b/web/src/labs/marked/index.ts
index f06dc262..436b9936 100644
--- a/web/src/labs/marked/index.ts
+++ b/web/src/labs/marked/index.ts
@@ -53,3 +53,75 @@ export const marked = (markdownStr: string, blockParsers = blockElementParserLis
 
   return markdownStr;
 };
+
+interface MatchedNode {
+  parserName: string;
+  matchedContent: string;
+}
+
+export const getMatchedNodes = (markdownStr: string): MatchedNode[] => {
+  const matchedNodeList: MatchedNode[] = [];
+
+  const walkthough = (markdownStr: string, blockParsers = blockElementParserList, inlineParsers = inlineElementParserList): string => {
+    for (const parser of blockParsers) {
+      const matchResult = parser.matcher(markdownStr);
+      if (!matchResult) {
+        continue;
+      }
+      const matchedStr = matchResult[0];
+      const retainContent = markdownStr.slice(matchedStr.length);
+      matchedNodeList.push({
+        parserName: parser.name,
+        matchedContent: matchedStr,
+      });
+
+      if (parser.name === "br") {
+        return walkthough(retainContent, blockParsers, inlineParsers);
+      } else {
+        if (retainContent.startsWith("\n")) {
+          return walkthough(retainContent.slice(1), blockParsers, inlineParsers);
+        }
+      }
+    }
+
+    let matchedInlineParser = undefined;
+    let matchedIndex = -1;
+
+    for (const parser of inlineParsers) {
+      const matchResult = parser.matcher(markdownStr);
+      if (!matchResult) {
+        continue;
+      }
+
+      if (parser.name === "plain text" && matchedInlineParser !== undefined) {
+        continue;
+      }
+
+      const startIndex = matchResult.index as number;
+      if (matchedInlineParser === undefined || matchedIndex > startIndex) {
+        matchedInlineParser = parser;
+        matchedIndex = startIndex;
+      }
+    }
+
+    if (matchedInlineParser) {
+      const matchResult = matchedInlineParser.matcher(markdownStr);
+      if (matchResult) {
+        const matchedStr = matchResult[0];
+        const matchedLength = matchedStr.length;
+        const suffixStr = markdownStr.slice(matchedIndex + matchedLength);
+        matchedNodeList.push({
+          parserName: matchedInlineParser.name,
+          matchedContent: matchedStr,
+        });
+        return walkthough(suffixStr, [], inlineParsers);
+      }
+    }
+
+    return markdownStr;
+  };
+
+  walkthough(markdownStr);
+
+  return matchedNodeList;
+};