diff --git a/apps/web/src/components/note-editor.tsx b/apps/web/src/components/note-editor.tsx
index 58d879d..0aae15b 100644
--- a/apps/web/src/components/note-editor.tsx
+++ b/apps/web/src/components/note-editor.tsx
@@ -135,6 +135,7 @@ export function NoteEditor({
   const [splitScrollSync, setSplitScrollSync] = useState(initialSession.viewState.splitScrollSync);
   const ctxMenu = useContextMenu<HTMLElement | null>();
   const [customCtxBuilder, setCustomCtxBuilder] = useState<CustomContextMenuBuilder | null>(null);
+  const [sourceCtxBuilder, setSourceCtxBuilder] = useState<CustomContextMenuBuilder | null>(null);
   const regionRef = useRef<HTMLDivElement>(null);
   const dirtyRef = useRef(false);
   const contentRef = useRef("");
@@ -154,6 +155,10 @@ export function NoteEditor({
     setCustomCtxBuilder(() => builder);
   }, []);
 
+  const registerSourceCtxBuilder = useCallback((builder: CustomContextMenuBuilder | null) => {
+    setSourceCtxBuilder(() => builder);
+  }, []);
+
   // Flush any unsaved edit when the component unmounts (tab switch / close).
   useEffect(() => {
     return () => {
@@ -321,6 +326,19 @@ export function NoteEditor({
     : null;
   const ctxBuilder = customCtxBuilder ?? descriptorCtxBuilder;
 
+  /** Try each builder in priority order; return the first non-null result. */
+  const resolveCtxItems = useCallback(
+    (target: HTMLElement | null) => {
+      for (const builder of [ctxBuilder, sourceCtxBuilder]) {
+        if (!builder) continue;
+        const result = builder(target);
+        if (result !== null && result !== undefined) return result;
+      }
+      return null;
+    },
+    [ctxBuilder, sourceCtxBuilder],
+  );
+
   const runEditCommand = useCallback(
     (command: string, target: HTMLElement | null) => {
       target?.focus();
@@ -333,10 +351,8 @@ export function NoteEditor({
   const contextMenuItems = useMemo(() => {
     const target = ctxMenu.menu?.data ?? null;
 
-    if (ctxBuilder) {
-      const custom = ctxBuilder(target);
-      if (custom) return custom;
-    }
+    const custom = resolveCtxItems(target);
+    if (custom) return custom;
 
     // Default: generic text-editing commands.
     const items: ContextMenuEntry[] = [];
@@ -350,7 +366,7 @@ export function NoteEditor({
       { label: "Select All", run: () => runEditCommand("selectAll", target) },
     );
     return items;
-  }, [ctxMenu.menu?.data, ctxBuilder, runEditCommand]);
+  }, [ctxMenu.menu?.data, resolveCtxItems, runEditCommand]);
 
   if (saveState === "loading") {
     return <div className="note-loading">Loading…</div>;
@@ -366,11 +382,9 @@ export function NoteEditor({
           if (!target || target.closest(".context-menu")) {
             return;
           }
-          if (ctxBuilder) {
-            const custom = ctxBuilder(target);
-            // If the note view's builder returns [] (empty), suppress the menu entirely.
-            if (custom !== undefined && custom !== null && custom.length === 0) return;
-          }
+          const custom = resolveCtxItems(target);
+          // If any builder returns [] (empty), suppress the menu entirely.
+          if (custom !== null && custom !== undefined && custom.length === 0) return;
           event.preventDefault();
           ctxMenu.open({ x: event.clientX, y: event.clientY }, target);
         }}
@@ -441,7 +455,12 @@ export function NoteEditor({
               <div className={`markdown-editor markdown-editor--${effectiveMode}`}>
                 {showSource && (
                   <div className="editor-column editor-column--split">
-                    <NativeSourceEditor value={content} onChange={handleChange} path={path} />
+                    <NativeSourceEditor
+                      value={content}
+                      onChange={handleChange}
+                      path={path}
+                      onRegisterContextMenu={registerSourceCtxBuilder}
+                    />
                   </div>
                 )}
                 {showRendered && noteRenderer && (
diff --git a/apps/web/src/state/use-editor-callbacks.tsx b/apps/web/src/state/use-editor-callbacks.tsx
index 8659861..84e62b3 100644
--- a/apps/web/src/state/use-editor-callbacks.tsx
+++ b/apps/web/src/state/use-editor-callbacks.tsx
@@ -1,5 +1,6 @@
 import type { EditorCallbacks } from "@notes/editor";
-import { useMemo } from "react";
+import { usePromptDialog } from "@notes/editor";
+import { useMemo, type ReactNode } from "react";
 import { api } from "../api/client";
 import { EmbedWidget } from "../components/embed-widget";
 import {
@@ -16,18 +17,27 @@ function basename(path: string): string {
   return (path.split("/").pop() ?? path).replace(/\.[^.]+$/, "");
 }
 
+export interface EditorCallbacksResult {
+  callbacks: EditorCallbacks;
+  promptDialog: ReactNode;
+}
+
 /**
  * Builds the EditorCallbacks object for the active Tome context.
  * Centralises wikilink navigation, tag/note listing, file imports, and embed
  * rendering so any component that needs them can call this hook instead of
  * inlining the same useMemo.
+ *
+ * Also returns a `promptDialog` ReactNode that must be rendered in the
+ * consuming component to support the `extractToNewNote` callback.
  */
-export function useEditorCallbacks(isStandalone: boolean): EditorCallbacks {
+export function useEditorCallbacks(isStandalone: boolean): EditorCallbacksResult {
   const { dispatch } = useWorkspace();
   const { settings } = useAppServices();
   const { notify } = useToasts();
+  const { openPrompt, promptDialog } = usePromptDialog();
 
-  return useMemo<EditorCallbacks>(
+  const callbacks = useMemo<EditorCallbacks>(
     () => ({
       onOpenWikilink: (name) => {
         void (async () => {
@@ -63,7 +73,43 @@ export function useEditorCallbacks(isStandalone: boolean): EditorCallbacks {
           },
       renderEmbed: (embedTarget) => <EmbedWidget target={embedTarget} />,
       disableFileDrop: isStandalone,
+      extractToNewNote: isStandalone
+        ? undefined
+        : async (content, mode) => {
+            const result = await openPrompt({
+              title: mode === "copy" ? "Copy to New Note" : "Move to New Note",
+              description:
+                mode === "copy"
+                  ? "Create a new note containing the selected text."
+                  : "Move the selected text to a new note and replace it with a wikilink.",
+              fields: [
+                {
+                  key: "name",
+                  label: "Note name",
+                  placeholder: "Enter note name",
+                  required: true,
+                  defaultValue: "",
+                },
+              ],
+              confirmLabel: mode === "copy" ? "Copy" : "Move",
+            });
+            if (!result) return null;
+            const name = result["name"].trim();
+            if (!name) return null;
+            const path = name.toLowerCase().endsWith(".md") ? name : `${name}.md`;
+            const noteName = path.replace(/\.md$/i, "").split("/").pop() ?? name;
+            try {
+              await api.create(path, `# ${noteName}\n\n${content}\n`);
+              dispatch({ type: "openFile", path, title: noteName });
+              return path;
+            } catch {
+              notify(`Couldn't create note "${noteName}"`, { kind: "error" });
+              return null;
+            }
+          },
     }),
-    [dispatch, notify, settings.mediaDirectory, isStandalone],
+    [dispatch, notify, settings.mediaDirectory, isStandalone, openPrompt],
   );
+
+  return { callbacks, promptDialog };
 }
diff --git a/package-lock.json b/package-lock.json
index 12cd6a4..bd92106 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4713,6 +4713,7 @@
       "version": "13.0.3",
       "resolved": "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-13.0.3.tgz",
       "integrity": "sha512-RbOBxmLBG8uvFUc15X9+9SFemKcQ0WBuISBVkpuiaUB2qblC8UWlHEjdWVoZ8AdhSwmoEgsiXKfopX0CQxaACQ==",
+      "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
         "node-addon-api": "^8.0.0"
diff --git a/packages/editor/src/native-source-editor.tsx b/packages/editor/src/native-source-editor.tsx
index e8ad07b..8268da1 100644
--- a/packages/editor/src/native-source-editor.tsx
+++ b/packages/editor/src/native-source-editor.tsx
@@ -1,4 +1,5 @@
 import { useEditorCallbacks } from "@notes/web/src/state/use-editor-callbacks";
+import type { ContextMenuEntry } from "@notes/ui";
 import {
   ClipboardEventHandler,
   DragEventHandler,
@@ -11,7 +12,7 @@ import {
 import { droppedPathInsertion, NOTES_PATH_MIME, RendererProps } from "./types";
 import { useSourcePaneSync } from "./pane-sync-context";
 
-export function NativeSourceEditor({ value, onChange }: RendererProps) {
+export function NativeSourceEditor({ value, onChange, onRegisterContextMenu }: RendererProps) {
   const {
     scrollRequest,
     onScrollChange,
@@ -22,7 +23,7 @@ export function NativeSourceEditor({ value, onChange }: RendererProps) {
     isReadOnly,
     isStandalone = false,
   } = useSourcePaneSync() ?? {};
-  const callbacks = useEditorCallbacks(isStandalone);
+  const { callbacks, promptDialog } = useEditorCallbacks(isStandalone);
   const effectiveOnChange = isReadOnly ? () => {} : onChange;
 
   const viewRef = useRef<HTMLTextAreaElement | null>(null);
@@ -156,19 +157,65 @@ export function NativeSourceEditor({ value, onChange }: RendererProps) {
     view.setSelectionRange(anchor, anchor);
   }, [cursorRequest, cursorRequest?.token]);
 
+  // Register context menu builder so the parent NoteEditor can show
+  // "Copy to New Note" / "Move to New Note" when the user right-clicks a
+  // non-empty selection inside the source pane.
+  useEffect(() => {
+    if (!onRegisterContextMenu) return;
+    onRegisterContextMenu((target) => {
+      const textarea = viewRef.current;
+      if (!textarea) return null;
+      const { selectionStart, selectionEnd } = textarea;
+      if (selectionStart === selectionEnd) return null;
+      const selectedText = textarea.value.slice(selectionStart, selectionEnd);
+      if (!selectedText.trim()) return null;
+      // Only activate for right-clicks inside the source column.
+      if (target && !target.closest(".editor-column--split")) return null;
+      const start = selectionStart;
+      const end = selectionEnd;
+      const items: ContextMenuEntry[] = [
+        {
+          label: "Copy to New Note",
+          run: () => {
+            void callbacks?.extractToNewNote?.(selectedText, "copy");
+          },
+        },
+        {
+          label: "Move to New Note",
+          run: () => {
+            void (async () => {
+              const notePath = await callbacks?.extractToNewNote?.(selectedText, "move");
+              if (notePath && viewRef.current) {
+                const noteName = notePath.replace(/\.md$/i, "").split("/").pop() ?? notePath;
+                viewRef.current.setRangeText(`[[${noteName}]]`, start, end, "end");
+                const inputEvent = new Event("input", { bubbles: true });
+                viewRef.current.dispatchEvent(inputEvent);
+              }
+            })();
+          },
+        },
+      ];
+      return items;
+    });
+    return () => onRegisterContextMenu(null);
+  }, [onRegisterContextMenu, callbacks]);
+
   return (
-    <textarea
-      ref={viewRef}
-      className="source-editor"
-      spellCheck="false"
-      value={value}
-      onChange={(event) => effectiveOnChange(event.target.value)}
-      onDragOver={handleDragover}
-      onDrop={handleDrop}
-      onPaste={handlePaste}
-      onFocus={onFocus}
-      onSelect={handleSelectionChange}
-      onScroll={handleScroll}
-    />
+    <>
+      <textarea
+        ref={viewRef}
+        className="source-editor"
+        spellCheck="false"
+        value={value}
+        onChange={(event) => effectiveOnChange(event.target.value)}
+        onDragOver={handleDragover}
+        onDrop={handleDrop}
+        onPaste={handlePaste}
+        onFocus={onFocus}
+        onSelect={handleSelectionChange}
+        onScroll={handleScroll}
+      />
+      {promptDialog}
+    </>
   );
 }
diff --git a/packages/editor/src/rendered-editor.tsx b/packages/editor/src/rendered-editor.tsx
index a1cbb76..2a0d87d 100644
--- a/packages/editor/src/rendered-editor.tsx
+++ b/packages/editor/src/rendered-editor.tsx
@@ -2,6 +2,7 @@ import { FindBar } from "@notes/web/src/components/find-bar";
 import { buildContent, parseFrontmatter } from "@notes/web/src/lib/frontmatter";
 import { useAppServices } from "@notes/web/src/state/app-services";
 import { useEditorCallbacks } from "@notes/web/src/state/use-editor-callbacks";
+import type { ContextMenuEntry } from "@notes/ui";
 import TaskItem from "@tiptap/extension-task-item";
 import TaskList from "@tiptap/extension-task-list";
 import { Table } from "@tiptap/extension-table";
@@ -87,6 +88,7 @@ export function RenderedEditor({
   value,
   onChange,
   toolbarDisabled = false,
+  onRegisterContextMenu,
 }: Omit<RendererProps, "path"> & { toolbarDisabled?: boolean; path?: string }) {
   // Context wins over props; props are fallbacks for standalone usage.
   const {
@@ -98,7 +100,7 @@ export function RenderedEditor({
     onFocus,
     focusRequest,
   } = useRenderedPaneSync() ?? {};
-  const callbacks = useEditorCallbacks(isStandalone);
+  const { callbacks, promptDialog } = useEditorCallbacks(isStandalone);
   const { settings } = useAppServices();
   const [findOpen, setFindOpen] = useState(false);
   const currentParts = parseFrontmatter(value);
@@ -442,6 +444,45 @@ export function RenderedEditor({
     editor.commands.focus();
   }, [editor, focusRequest, focusRequest?.token]);
 
+  // Register context menu builder so the parent NoteEditor can show
+  // "Copy to New Note" / "Move to New Note" when the user right-clicks a
+  // non-empty selection inside the rendered pane.
+  useEffect(() => {
+    if (!onRegisterContextMenu) return;
+    onRegisterContextMenu((target) => {
+      if (!editor) return null;
+      const { selection } = editor.state;
+      if (selection.empty) return null;
+      const selectedText = editor.state.doc.textBetween(selection.from, selection.to, "\n");
+      if (!selectedText.trim()) return null;
+      // Only activate for right-clicks inside the rendered column.
+      if (target && !target.closest(".editor-column--rendered")) return null;
+      const { from, to } = selection;
+      const items: ContextMenuEntry[] = [
+        {
+          label: "Copy to New Note",
+          run: () => {
+            void callbacks?.extractToNewNote?.(selectedText, "copy");
+          },
+        },
+        {
+          label: "Move to New Note",
+          run: () => {
+            void (async () => {
+              const notePath = await callbacks?.extractToNewNote?.(selectedText, "move");
+              if (notePath) {
+                const noteName = notePath.replace(/\.md$/i, "").split("/").pop() ?? notePath;
+                editor.chain().focus().insertContentAt({ from, to }, `[[${noteName}]]`).run();
+              }
+            })();
+          },
+        },
+      ];
+      return items;
+    });
+    return () => onRegisterContextMenu(null);
+  }, [onRegisterContextMenu, editor, callbacks]);
+
   const handleDrop = useCallback(
     (event: ReactDragEvent<HTMLDivElement>) => {
       if (!editor) {
@@ -625,6 +666,7 @@ export function RenderedEditor({
           />
         )}
       </div>
+      {promptDialog}
     </div>
   );
 }
diff --git a/packages/editor/src/types.ts b/packages/editor/src/types.ts
index 1e94bed..5da26e4 100644
--- a/packages/editor/src/types.ts
+++ b/packages/editor/src/types.ts
@@ -107,6 +107,15 @@ export interface EditorCallbacks {
    * Use for standalone files that should not import local assets.
    */
   disableFileDrop?: boolean;
+  /**
+   * Prompts the user to name a new note, creates it with the given content,
+   * and opens it in a tab.
+   *
+   * Returns the new note's path on success, or null if the user cancelled or
+   * an error occurred.  When `mode` is `"move"` the caller is responsible for
+   * removing the selected content and inserting a wikilink after this resolves.
+   */
+  extractToNewNote?: (content: string, mode: "copy" | "move") => Promise<string | null>;
 }
 
 // ── Renderer contract ─────────────────────────────────────────────────────────