diff --git a/api/v2/markdown_service.go b/api/v2/markdown_service.go
index 7308228a..12c0229d 100644
--- a/api/v2/markdown_service.go
+++ b/api/v2/markdown_service.go
@@ -95,6 +95,73 @@ func convertFromASTNode(rawNode ast.Node) *apiv2pb.Node {
 	return node
 }
 
+func convertToASTNodes(nodes []*apiv2pb.Node) []ast.Node {
+	rawNodes := []ast.Node{}
+	for _, node := range nodes {
+		rawNode := convertToASTNode(node)
+		rawNodes = append(rawNodes, rawNode)
+	}
+	return rawNodes
+}
+
+func convertToASTNode(node *apiv2pb.Node) ast.Node {
+	switch n := node.Node.(type) {
+	case *apiv2pb.Node_LineBreakNode:
+		return &ast.LineBreak{}
+	case *apiv2pb.Node_ParagraphNode:
+		children := convertToASTNodes(n.ParagraphNode.Children)
+		return &ast.Paragraph{Children: children}
+	case *apiv2pb.Node_CodeBlockNode:
+		return &ast.CodeBlock{Language: n.CodeBlockNode.Language, Content: n.CodeBlockNode.Content}
+	case *apiv2pb.Node_HeadingNode:
+		children := convertToASTNodes(n.HeadingNode.Children)
+		return &ast.Heading{Level: int(n.HeadingNode.Level), Children: children}
+	case *apiv2pb.Node_HorizontalRuleNode:
+		return &ast.HorizontalRule{Symbol: n.HorizontalRuleNode.Symbol}
+	case *apiv2pb.Node_BlockquoteNode:
+		children := convertToASTNodes(n.BlockquoteNode.Children)
+		return &ast.Blockquote{Children: children}
+	case *apiv2pb.Node_OrderedListNode:
+		children := convertToASTNodes(n.OrderedListNode.Children)
+		return &ast.OrderedList{Number: n.OrderedListNode.Number, Children: children}
+	case *apiv2pb.Node_UnorderedListNode:
+		children := convertToASTNodes(n.UnorderedListNode.Children)
+		return &ast.UnorderedList{Symbol: n.UnorderedListNode.Symbol, Children: children}
+	case *apiv2pb.Node_TaskListNode:
+		children := convertToASTNodes(n.TaskListNode.Children)
+		return &ast.TaskList{Symbol: n.TaskListNode.Symbol, Complete: n.TaskListNode.Complete, Children: children}
+	case *apiv2pb.Node_MathBlockNode:
+		return &ast.MathBlock{Content: n.MathBlockNode.Content}
+	case *apiv2pb.Node_TextNode:
+		return &ast.Text{Content: n.TextNode.Content}
+	case *apiv2pb.Node_BoldNode:
+		children := convertToASTNodes(n.BoldNode.Children)
+		return &ast.Bold{Symbol: n.BoldNode.Symbol, Children: children}
+	case *apiv2pb.Node_ItalicNode:
+		return &ast.Italic{Symbol: n.ItalicNode.Symbol, Content: n.ItalicNode.Content}
+	case *apiv2pb.Node_BoldItalicNode:
+		return &ast.BoldItalic{Symbol: n.BoldItalicNode.Symbol, Content: n.BoldItalicNode.Content}
+	case *apiv2pb.Node_CodeNode:
+		return &ast.Code{Content: n.CodeNode.Content}
+	case *apiv2pb.Node_ImageNode:
+		return &ast.Image{AltText: n.ImageNode.AltText, URL: n.ImageNode.Url}
+	case *apiv2pb.Node_LinkNode:
+		return &ast.Link{Text: n.LinkNode.Text, URL: n.LinkNode.Url}
+	case *apiv2pb.Node_AutoLinkNode:
+		return &ast.AutoLink{URL: n.AutoLinkNode.Url}
+	case *apiv2pb.Node_TagNode:
+		return &ast.Tag{Content: n.TagNode.Content}
+	case *apiv2pb.Node_StrikethroughNode:
+		return &ast.Strikethrough{Content: n.StrikethroughNode.Content}
+	case *apiv2pb.Node_EscapingCharacterNode:
+		return &ast.EscapingCharacter{Symbol: n.EscapingCharacterNode.Symbol}
+	case *apiv2pb.Node_MathNode:
+		return &ast.Math{Content: n.MathNode.Content}
+	default:
+		return &ast.Text{}
+	}
+}
+
 func traverseASTNodes(nodes []ast.Node, fn func(ast.Node)) {
 	for _, node := range nodes {
 		fn(node)
diff --git a/api/v2/memo_service.go b/api/v2/memo_service.go
index 3655e77c..0148f058 100644
--- a/api/v2/memo_service.go
+++ b/api/v2/memo_service.go
@@ -19,6 +19,7 @@ import (
 	"github.com/usememos/memos/plugin/gomark/ast"
 	"github.com/usememos/memos/plugin/gomark/parser"
 	"github.com/usememos/memos/plugin/gomark/parser/tokenizer"
+	"github.com/usememos/memos/plugin/gomark/restore"
 	"github.com/usememos/memos/plugin/webhook"
 	apiv2pb "github.com/usememos/memos/proto/gen/api/v2"
 	storepb "github.com/usememos/memos/proto/gen/store"
@@ -232,6 +233,10 @@ func (s *APIV2Service) UpdateMemo(ctx context.Context, request *apiv2pb.UpdateMe
 					}
 				}
 			})
+		} else if path == "nodes" {
+			nodes := convertToASTNodes(request.Memo.Nodes)
+			content := restore.Restore(nodes)
+			update.Content = &content
 		} else if path == "visibility" {
 			visibility := convertVisibilityToStore(request.Memo.Visibility)
 			update.Visibility = &visibility
diff --git a/plugin/gomark/ast/utils.go b/plugin/gomark/ast/utils.go
new file mode 100644
index 00000000..58e91e19
--- /dev/null
+++ b/plugin/gomark/ast/utils.go
@@ -0,0 +1,23 @@
+package ast
+
+func FindPrevSiblingExceptLineBreak(node Node) Node {
+	if node == nil {
+		return nil
+	}
+	prev := node.PrevSibling()
+	if prev != nil && prev.Type() == LineBreakNode {
+		return FindPrevSiblingExceptLineBreak(prev)
+	}
+	return prev
+}
+
+func FindNextSiblingExceptLineBreak(node Node) Node {
+	if node == nil {
+		return nil
+	}
+	next := node.NextSibling()
+	if next != nil && next.Type() == LineBreakNode {
+		return FindNextSiblingExceptLineBreak(next)
+	}
+	return next
+}
diff --git a/plugin/gomark/parser/parser.go b/plugin/gomark/parser/parser.go
index 8d0f8a4a..bf67a46f 100644
--- a/plugin/gomark/parser/parser.go
+++ b/plugin/gomark/parser/parser.go
@@ -49,7 +49,6 @@ func ParseBlock(tokens []*tokenizer.Token) ([]ast.Node, error) {
 func ParseBlockWithParsers(tokens []*tokenizer.Token, blockParsers []BlockParser) ([]ast.Node, error) {
 	nodes := []ast.Node{}
 	var prevNode ast.Node
-	var skipNextLineBreakFlag bool
 	for len(tokens) > 0 {
 		for _, blockParser := range blockParsers {
 			size, matched := blockParser.Match(tokens)
@@ -59,21 +58,12 @@ func ParseBlockWithParsers(tokens []*tokenizer.Token, blockParsers []BlockParser
 					return nil, errors.New("parse error")
 				}
 
-				if node.Type() == ast.LineBreakNode && skipNextLineBreakFlag {
-					if prevNode != nil && ast.IsBlockNode(prevNode) {
-						tokens = tokens[size:]
-						skipNextLineBreakFlag = false
-						break
-					}
-				}
-
 				tokens = tokens[size:]
 				if prevNode != nil {
 					prevNode.SetNextSibling(node)
 					node.SetPrevSibling(prevNode)
 				}
 				prevNode = node
-				skipNextLineBreakFlag = true
 				nodes = append(nodes, node)
 				break
 			}
diff --git a/plugin/gomark/parser/parser_test.go b/plugin/gomark/parser/parser_test.go
index 197da255..817592d2 100644
--- a/plugin/gomark/parser/parser_test.go
+++ b/plugin/gomark/parser/parser_test.go
@@ -96,6 +96,7 @@ func TestParser(t *testing.T) {
 						},
 					},
 				},
+				&ast.LineBreak{},
 				&ast.Paragraph{
 					Children: []ast.Node{
 						&ast.Text{
@@ -126,6 +127,7 @@ func TestParser(t *testing.T) {
 						},
 					},
 				},
+				&ast.LineBreak{},
 				&ast.CodeBlock{
 					Language: "javascript",
 					Content:  "console.log(\"Hello world!\");",
@@ -143,6 +145,7 @@ func TestParser(t *testing.T) {
 					},
 				},
 				&ast.LineBreak{},
+				&ast.LineBreak{},
 				&ast.Paragraph{
 					Children: []ast.Node{
 						&ast.Text{
@@ -163,6 +166,7 @@ func TestParser(t *testing.T) {
 						},
 					},
 				},
+				&ast.LineBreak{},
 				&ast.TaskList{
 					Symbol:   tokenizer.Hyphen,
 					Complete: false,
@@ -186,6 +190,7 @@ func TestParser(t *testing.T) {
 						},
 					},
 				},
+				&ast.LineBreak{},
 				&ast.TaskList{
 					Symbol:   tokenizer.Hyphen,
 					Complete: true,
diff --git a/plugin/gomark/renderer/html/html.go b/plugin/gomark/renderer/html/html.go
index 4a4fd8be..538b6f18 100644
--- a/plugin/gomark/renderer/html/html.go
+++ b/plugin/gomark/renderer/html/html.go
@@ -72,8 +72,19 @@ func (r *HTMLRenderer) RenderNode(node ast.Node) {
 
 // RenderNodes renders a slice of AST nodes to HTML.
 func (r *HTMLRenderer) RenderNodes(nodes []ast.Node) {
+	var prevNode ast.Node
+	var skipNextLineBreakFlag bool
 	for _, node := range nodes {
+		if node.Type() == ast.LineBreakNode && skipNextLineBreakFlag {
+			if prevNode != nil && ast.IsBlockNode(prevNode) {
+				skipNextLineBreakFlag = false
+				continue
+			}
+		}
+
 		r.RenderNode(node)
+		prevNode = node
+		skipNextLineBreakFlag = true
 	}
 }
 
@@ -111,7 +122,7 @@ func (r *HTMLRenderer) renderHorizontalRule(_ *ast.HorizontalRule) {
 }
 
 func (r *HTMLRenderer) renderBlockquote(node *ast.Blockquote) {
-	prevSibling, nextSibling := node.PrevSibling(), node.NextSibling()
+	prevSibling, nextSibling := ast.FindPrevSiblingExceptLineBreak(node), ast.FindNextSiblingExceptLineBreak(node)
 	if prevSibling == nil || prevSibling.Type() != ast.BlockquoteNode {
 		r.output.WriteString("<blockquote>")
 	}
@@ -122,7 +133,7 @@ func (r *HTMLRenderer) renderBlockquote(node *ast.Blockquote) {
 }
 
 func (r *HTMLRenderer) renderTaskList(node *ast.TaskList) {
-	prevSibling, nextSibling := node.PrevSibling(), node.NextSibling()
+	prevSibling, nextSibling := ast.FindPrevSiblingExceptLineBreak(node), ast.FindNextSiblingExceptLineBreak(node)
 	if prevSibling == nil || prevSibling.Type() != ast.TaskListNode {
 		r.output.WriteString("<ul>")
 	}
@@ -140,7 +151,7 @@ func (r *HTMLRenderer) renderTaskList(node *ast.TaskList) {
 }
 
 func (r *HTMLRenderer) renderUnorderedList(node *ast.UnorderedList) {
-	prevSibling, nextSibling := node.PrevSibling(), node.NextSibling()
+	prevSibling, nextSibling := ast.FindPrevSiblingExceptLineBreak(node), ast.FindNextSiblingExceptLineBreak(node)
 	if prevSibling == nil || prevSibling.Type() != ast.UnorderedListNode {
 		r.output.WriteString("<ul>")
 	}
@@ -153,7 +164,7 @@ func (r *HTMLRenderer) renderUnorderedList(node *ast.UnorderedList) {
 }
 
 func (r *HTMLRenderer) renderOrderedList(node *ast.OrderedList) {
-	prevSibling, nextSibling := node.PrevSibling(), node.NextSibling()
+	prevSibling, nextSibling := ast.FindPrevSiblingExceptLineBreak(node), ast.FindNextSiblingExceptLineBreak(node)
 	if prevSibling == nil || prevSibling.Type() != ast.OrderedListNode {
 		r.output.WriteString("<ol>")
 	}
diff --git a/plugin/gomark/renderer/string/string.go b/plugin/gomark/renderer/string/string.go
index 8e80a088..546d5e83 100644
--- a/plugin/gomark/renderer/string/string.go
+++ b/plugin/gomark/renderer/string/string.go
@@ -72,8 +72,19 @@ func (r *StringRenderer) RenderNode(node ast.Node) {
 
 // RenderNodes renders a slice of AST nodes to raw string.
 func (r *StringRenderer) RenderNodes(nodes []ast.Node) {
+	var prevNode ast.Node
+	var skipNextLineBreakFlag bool
 	for _, node := range nodes {
+		if node.Type() == ast.LineBreakNode && skipNextLineBreakFlag {
+			if prevNode != nil && ast.IsBlockNode(prevNode) {
+				skipNextLineBreakFlag = false
+				continue
+			}
+		}
+
 		r.RenderNode(node)
+		prevNode = node
+		skipNextLineBreakFlag = true
 	}
 }
 
diff --git a/web/src/components/MemoContent/Renderer.tsx b/web/src/components/MemoContent/Renderer.tsx
index 2eb0062f..b8357026 100644
--- a/web/src/components/MemoContent/Renderer.tsx
+++ b/web/src/components/MemoContent/Renderer.tsx
@@ -44,10 +44,11 @@ import Text from "./Text";
 import UnorderedList from "./UnorderedList";
 
 interface Props {
+  index: string;
   node: Node;
 }
 
-const Renderer: React.FC<Props> = ({ node }: Props) => {
+const Renderer: React.FC<Props> = ({ index, node }: Props) => {
   switch (node.type) {
     case NodeType.LINE_BREAK:
       return <LineBreak />;
@@ -66,7 +67,7 @@ const Renderer: React.FC<Props> = ({ node }: Props) => {
     case NodeType.UNORDERED_LIST:
       return <UnorderedList {...(node.unorderedListNode as UnorderedListNode)} />;
     case NodeType.TASK_LIST:
-      return <TaskList {...(node.taskListNode as TaskListNode)} />;
+      return <TaskList index={index} {...(node.taskListNode as TaskListNode)} />;
     case NodeType.MATH_BLOCK:
       return <Math {...(node.mathBlockNode as MathNode)} block={true} />;
     case NodeType.TEXT:
diff --git a/web/src/components/MemoContent/TaskList.tsx b/web/src/components/MemoContent/TaskList.tsx
index 7774bfe6..e2c36b3f 100644
--- a/web/src/components/MemoContent/TaskList.tsx
+++ b/web/src/components/MemoContent/TaskList.tsx
@@ -1,23 +1,51 @@
 import { Checkbox } from "@mui/joy";
-import { Node } from "@/types/proto/api/v2/markdown_service";
+import { useContext } from "react";
+import { useMemoStore } from "@/store/v1";
+import { Node, NodeType } from "@/types/proto/api/v2/markdown_service";
 import Renderer from "./Renderer";
+import { RendererContext } from "./types";
 
 interface Props {
+  index: string;
   symbol: string;
   complete: boolean;
   children: Node[];
 }
 
-const TaskList: React.FC<Props> = ({ complete, children }: Props) => {
+const TaskList: React.FC<Props> = ({ index, complete, children }: Props) => {
+  const context = useContext(RendererContext);
+  const memoStore = useMemoStore();
+
+  const handleCheckboxChange = async (on: boolean) => {
+    const nodeIndex = Number(index);
+    if (isNaN(nodeIndex)) {
+      return;
+    }
+
+    const node = context.nodes[nodeIndex];
+    if (node.type !== NodeType.TASK_LIST || !node.taskListNode) {
+      return;
+    }
+
+    node.taskListNode!.complete = on;
+    await memoStore.updateMemo(
+      {
+        id: context.memoId,
+        nodes: context.nodes,
+      },
+      ["nodes"]
+    );
+  };
+
   return (
     <ul>
       <li className="grid grid-cols-[24px_1fr] gap-1">
         <div className="w-7 h-6 flex justify-center items-center">
-          <Checkbox size="sm" checked={complete} readOnly />
+          <Checkbox size="sm" checked={complete} disabled={context.readonly} onChange={(e) => handleCheckboxChange(e.target.checked)} />
         </div>
         <div>
-          {children.map((child, index) => (
-            <Renderer key={`${child.type}-${index}`} node={child} />
+          {children.map((child, subIndex) => (
+            <Renderer key={`${child.type}-${subIndex}`} index={`${index}-${subIndex}`} node={child} />
           ))}
         </div>
       </li>
diff --git a/web/src/components/MemoContent/index.tsx b/web/src/components/MemoContent/index.tsx
index a3f11487..764bf9cb 100644
--- a/web/src/components/MemoContent/index.tsx
+++ b/web/src/components/MemoContent/index.tsx
@@ -1,16 +1,24 @@
 import { useRef } from "react";
+import useCurrentUser from "@/hooks/useCurrentUser";
+import { useMemoStore } from "@/store/v1";
 import { Node } from "@/types/proto/api/v2/markdown_service";
 import Renderer from "./Renderer";
+import { RendererContext } from "./types";
 
 interface Props {
+  memoId: number;
   nodes: Node[];
+  readonly?: boolean;
   className?: string;
   onMemoContentClick?: (e: React.MouseEvent) => void;
 }
 
 const MemoContent: React.FC<Props> = (props: Props) => {
-  const { className, onMemoContentClick } = props;
+  const { className, memoId, nodes, onMemoContentClick } = props;
+  const currentUser = useCurrentUser();
+  const memoStore = useMemoStore();
   const memoContentContainerRef = useRef<HTMLDivElement>(null);
+  const allowEdit = currentUser?.id === memoStore.getMemoById(memoId)?.creatorId && !props.readonly;
 
   const handleMemoContentClick = async (e: React.MouseEvent) => {
     if (onMemoContentClick) {
@@ -19,17 +27,25 @@ const MemoContent: React.FC<Props> = (props: Props) => {
   };
 
   return (
-    <div className={`w-full flex flex-col justify-start items-start text-gray-800 dark:text-gray-300 ${className || ""}`}>
-      <div
-        ref={memoContentContainerRef}
-        className="w-full max-w-full word-break text-base leading-6 space-y-1"
-        onClick={handleMemoContentClick}
-      >
-        {props.nodes.map((node, index) => (
-          <Renderer key={`${node.type}-${index}`} node={node} />
-        ))}
+    <RendererContext.Provider
+      value={{
+        memoId,
+        nodes,
+        readonly: !allowEdit,
+      }}
+    >
+      <div className={`w-full flex flex-col justify-start items-start text-gray-800 dark:text-gray-300 ${className || ""}`}>
+        <div
+          ref={memoContentContainerRef}
+          className="w-full max-w-full word-break text-base leading-6 space-y-1"
+          onClick={handleMemoContentClick}
+        >
+          {nodes.map((node, index) => (
+            <Renderer key={`${node.type}-${index}`} index={String(index)} node={node} />
+          ))}
+        </div>
       </div>
-    </div>
+    </RendererContext.Provider>
   );
 };
 
diff --git a/web/src/components/MemoContent/types/context.ts b/web/src/components/MemoContent/types/context.ts
index da10b091..cf678c6c 100644
--- a/web/src/components/MemoContent/types/context.ts
+++ b/web/src/components/MemoContent/types/context.ts
@@ -1 +1,14 @@
-export interface RendererContext {}
+import { createContext } from "react";
+import { UNKNOWN_ID } from "@/helpers/consts";
+import { Node } from "@/types/proto/api/v2/markdown_service";
+
+interface Context {
+  memoId: number;
+  nodes: Node[];
+  readonly?: boolean;
+}
+
+export const RendererContext = createContext<Context>({
+  memoId: UNKNOWN_ID,
+  nodes: [],
+});
diff --git a/web/src/components/MemoView.tsx b/web/src/components/MemoView.tsx
index 2a31560a..02f05b13 100644
--- a/web/src/components/MemoView.tsx
+++ b/web/src/components/MemoView.tsx
@@ -251,7 +251,7 @@ const MemoView: React.FC<Props> = (props: Props) => {
           )}
         </div>
       </div>
-      <MemoContent nodes={memo.nodes} onMemoContentClick={handleMemoContentClick} />
+      <MemoContent memoId={memo.id} nodes={memo.nodes} onMemoContentClick={handleMemoContentClick} />
       <MemoResourceListView resourceList={memo.resources} />
       <MemoRelationListView memo={memo} relationList={referenceRelations} />
     </div>
diff --git a/web/src/components/ShareMemoDialog.tsx b/web/src/components/ShareMemoDialog.tsx
index 4514cf8f..a5fc4f7c 100644
--- a/web/src/components/ShareMemoDialog.tsx
+++ b/web/src/components/ShareMemoDialog.tsx
@@ -100,7 +100,7 @@ const ShareMemoDialog: React.FC<Props> = (props: Props) => {
           >
             <span className="w-full px-6 pt-5 pb-2 text-sm text-gray-500">{getDateTimeString(memo.displayTime)}</span>
             <div className="w-full px-6 text-base pb-4">
-              <MemoContent nodes={memo.nodes} />
+              <MemoContent memoId={memo.id} nodes={memo.nodes} readonly={true} />
               <MemoResourceListView resourceList={memo.resources} />
             </div>
             <div className="flex flex-row justify-between items-center w-full bg-gray-100 dark:bg-zinc-900 py-4 px-6">
diff --git a/web/src/components/TimelineMemo.tsx b/web/src/components/TimelineMemo.tsx
index 3b5624f6..33074d16 100644
--- a/web/src/components/TimelineMemo.tsx
+++ b/web/src/components/TimelineMemo.tsx
@@ -18,7 +18,7 @@ const TimelineMemo = (props: Props) => {
       <div className="w-full flex flex-row justify-start items-center mt-0.5 mb-1 text-sm font-mono text-gray-500 dark:text-gray-400">
         <span className="opacity-80">{getTimeString(memo.displayTime)}</span>
       </div>
-      <MemoContent nodes={memo.nodes} />
+      <MemoContent memoId={memo.id} nodes={memo.nodes} />
       <MemoResourceListView resourceList={memo.resources} />
       <MemoRelationListView memo={memo} relationList={relations} />
     </div>
diff --git a/web/src/pages/Archived.tsx b/web/src/pages/Archived.tsx
index 4562ebb6..b25a0182 100644
--- a/web/src/pages/Archived.tsx
+++ b/web/src/pages/Archived.tsx
@@ -105,7 +105,7 @@ const Archived = () => {
                     </Tooltip>
                   </div>
                 </div>
-                <MemoContent nodes={memo.nodes} />
+                <MemoContent memoId={memo.id} nodes={memo.nodes} readonly={true} />
               </div>
             ))}
           </div>
diff --git a/web/src/pages/MemoDetail.tsx b/web/src/pages/MemoDetail.tsx
index 21b59e58..7548a48f 100644
--- a/web/src/pages/MemoDetail.tsx
+++ b/web/src/pages/MemoDetail.tsx
@@ -139,7 +139,7 @@ const MemoDetail = () => {
               </Link>
             </div>
           )}
-          <MemoContent nodes={memo.nodes} />
+          <MemoContent memoId={memo.id} nodes={memo.nodes} readonly={true} />
           <MemoResourceListView resourceList={memo.resources} />
           <MemoRelationListView memo={memo} relationList={referenceRelations} />
           <div className="w-full mt-3 flex flex-row justify-between items-center gap-2">