Render Props

renderTopRightUI

(isMobile: boolean, appState:AppState) => JSX | null

A function returning JSX to render custom UI in the top right corner of the app.

Live Editor

function App() { return ( <div style={{ height: "500px" }}> <Excalidraw renderTopRightUI={() => { return ( <button style={{ background: "#70b1ec", border: "none", color: "#fff", width: "max-content", fontWeight: "bold", }} onClick={() => window.alert("This is dummy top right UI")} > Click me </button> ); }} /> </div> ); }

function App() {
  return (
    <div style={{ height: "500px" }}>
      <Excalidraw
        renderTopRightUI={() => {
          return (
            <button
              style={{
                background: "#70b1ec",
                border: "none",
                color: "#fff",
                width: "max-content",
                fontWeight: "bold",
              }}
              onClick={() => window.alert("This is dummy top right UI")}
            >
              Click me
            </button>
          );
        }}
      />
    </div>
  );
}

Result

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renderCustomStats

A function that can be used to render custom stats (returns JSX) in the nerd stats dialog.

For example you can use this prop to render the size of the elements in the storage as do in excalidraw.com.

Live Editor

function App() { return ( <div style={{ height: "500px" }}> <Excalidraw renderCustomStats={() => ( <p style={{ color: "#70b1ec", fontWeight: "bold" }}> Dummy stats will be shown here </p> )} /> </div> ); }

function App() {
  return (
    <div style={{ height: "500px" }}>
      <Excalidraw
        renderCustomStats={() => (
          <p style={{ color: "#70b1ec", fontWeight: "bold" }}>
            Dummy stats will be shown here
          </p>
        )}
      />
    </div>
  );
}

Result

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renderSidebar

() => JSX | null;

You can render custom sidebar using this prop. This sidebar is the same that the library menu sidebar is using, and can be used for any purposes your app needs.

You need to import the Sidebar component from excalidraw package and pass your content as its children. The function renderSidebar should return the Sidebar instance.

Sidebar

The <Sidebar> component takes these props (all are optional except children):

Prop	Type	Description
children	React.ReactNode	Content you want to render inside the sidebar.
onClose	function	Invoked when the component is closed (by user, or the editor). No need to act on this event, as the editor manages the sidebar open state on its own.
onDock	function	Invoked when the user toggles the dock button. The callback recieves a boolean parameter isDocked which indicates whether the sidebar is docked
docked	boolean	Indicates whether the sidebar isdocked. By default, the sidebar is undocked. If passed, the docking becomes controlled, and you are responsible for updating the docked state by listening on onDock callback. To decide the breakpoint for docking you can use UIOptions.dockedSidebarBreakpoint for more info on docking.
dockable	boolean	Indicates whether to show the dock button so that user can dock the sidebar. If false, you can still dock programmatically by passing docked as true.

The sidebar will always include a header with close / dock buttons (when applicable). You can also add custom content to the header, by rendering <Sidebar.Header> as a child of the <Sidebar> component. Note that the custom header will still include the default buttons.

Sidebar.Header

name	type	description
children	React.ReactNode	Content you want to render inside the sidebar header as a sibling of close / dock buttons.

To control the visibility of the sidebar you can use toggleMenu("customSidebar") api available via ref.

Live Editor

function App() { const [excalidrawAPI, setExcalidrawAPI] = useState(null); return ( <div style={{ height: "500px" }}> <button className="custom-button" onClick={() => excalidrawAPI.toggleMenu("customSidebar")}> Toggle Custom Sidebar </button> <Excalidraw UIOptions={{ dockedSidebarBreakpoint: 100 }} ref={(api) => setExcalidrawAPI(api)} renderSidebar={() => { return ( <Sidebar dockable={true}> <Sidebar.Header>Custom Sidebar Header </Sidebar.Header> <p style={{ padding: "1rem" }}> custom Sidebar Content </p> </Sidebar> ); }} /> </div> ); }

function App() {
  const [excalidrawAPI, setExcalidrawAPI] = useState(null);

  return (
    <div style={{ height: "500px" }}>
      <button className="custom-button" onClick={() => excalidrawAPI.toggleMenu("customSidebar")}>
        Toggle Custom Sidebar
      </button>
      <Excalidraw
        UIOptions={{ dockedSidebarBreakpoint: 100 }}
        ref={(api) => setExcalidrawAPI(api)}
        renderSidebar={() => {
          return (
            <Sidebar dockable={true}>
              <Sidebar.Header>Custom Sidebar Header </Sidebar.Header>
              <p style={{ padding: "1rem" }}> custom Sidebar Content </p>
            </Sidebar>
          );
        }}
      />
    </div>
  );
}

Result

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