diff --git a/src/components/app.tsx b/src/components/app.tsx
index 804a67e..c09777d 100644
--- a/src/components/app.tsx
+++ b/src/components/app.tsx
@@ -14,6 +14,7 @@ import PauseIcon from "../assets/pause.svg";
 import DropdownUpArrowIcon from "../assets/dropdown-up-arrow-icon.svg";
 import DropdownDownArrowIcon from "../assets/dropdown-down-arrow-icon.svg";
 import { SpeedToggle } from "./speed-toggle";
+import { ConfirmModal, IConfirmModal } from "./confirm-modal";
 
 import "./app.scss";
 
@@ -146,6 +147,7 @@ export const App = () => {
   const [highlightOutput, setHighlightOutput] = useState<{group: SequenceGroup, sequence: Node[]}|undefined>();
   const [delimiterType, setDelimiterType] = useState<DelimiterType>(
     delimiter === "" ? "none" : (delimiter === " " ? "space" : "other"));
+  const [confirmModal, setConfirmModal] = useState<IConfirmModal|undefined>(undefined);
 
   const handleDimensionChange = ({width, height}: {width: number, height: number}) => {
     widthRef.current = width;
@@ -519,23 +521,33 @@ export const App = () => {
   };
 
   const handleReset = useCallback(() => {
-    if (confirm("Are you sure you want to reset?\n\nAny changes you have made will be lost.")) {
-      setLengthLimit(defaultLengthLimit);
-      setDelimiter(defaultDelimiter);
-      setStartingState(defaultStartingState);
-      setSequenceGroups([]);
-      setFastSimulation(defaultFastSimulation);
-      setGraph(initialGraph ? {...initialGraph} : {nodes: [], edges: []});
-      setFitViewAt(Date.now());
-    }
+    setConfirmModal({
+      title: "Reset?",
+      message: <>Are you sure you want to reset?<br/>Any changes you have made will be lost.</>,
+      onOk: () => {
+        setLengthLimit(defaultLengthLimit);
+        setDelimiter(defaultDelimiter);
+        setStartingState(defaultStartingState);
+        setSequenceGroups([]);
+        setFastSimulation(defaultFastSimulation);
+        setGraph(initialGraph ? {...initialGraph} : {nodes: [], edges: []});
+        setFitViewAt(Date.now());
+      },
+      onClose: () => setConfirmModal(undefined)
+    });
   }, [initialGraph, setGraph]);
 
   const handleReturnToMainMenu = () => {
-    if (confirm("Are you sure you want to go back to the main menu?\n\nAny changes you have made will be lost.")) {
-      setGraph({nodes: [], edges: []});
-      setInitialGraph(undefined);
-      setViewMode(undefined);
-    }
+    setConfirmModal({
+      title: "Back To Main Menu?",
+      message: <>Are you sure you want to go back to the main menu?<br/>Any changes you have made will be lost.</>,
+      onOk: () => {
+        setGraph({nodes: [], edges: []});
+        setInitialGraph(undefined);
+        setViewMode(undefined);
+      },
+      onClose: () => setConfirmModal(undefined)
+    });
   };
 
   const handleFitView = () => {
@@ -636,6 +648,7 @@ export const App = () => {
           }
         </div>
         {maybeRenderRightBar()}
+        {confirmModal && <ConfirmModal {...confirmModal} />}
       </div>
     </div>
   );
diff --git a/src/components/confirm-modal.scss b/src/components/confirm-modal.scss
new file mode 100644
index 0000000..6abec62
--- /dev/null
+++ b/src/components/confirm-modal.scss
@@ -0,0 +1,46 @@
+.confirmModalBackground {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  background: #000;
+  opacity: 0.25;
+  z-index: 100;
+}
+.confirmModal {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  z-index: 101;
+  user-select: none;
+
+  .confirmModalContent {
+    min-width: 200px;
+
+    .confirmModalTitle {
+      background-color: #177991;
+      color: white;
+      padding: 5px 10px;
+    }
+
+    .confirmModalInnerContent {
+      padding: 10px;
+      background-color: white;
+      display: flex;
+      flex-direction: column;
+      gap: 10px;
+
+      .confirmModalButtons {
+        display: flex;
+        gap: 5px;
+        justify-content: flex-end;
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/components/confirm-modal.tsx b/src/components/confirm-modal.tsx
new file mode 100644
index 0000000..9c994bc
--- /dev/null
+++ b/src/components/confirm-modal.tsx
@@ -0,0 +1,35 @@
+import React, { ReactNode } from "react";
+
+import "./confirm-modal.scss";
+
+export interface IConfirmModal {
+  title: string;
+  message: string|ReactNode;
+  onOk: () => void,
+  onClose: () => void
+}
+
+export const ConfirmModal = ({ title, message, onOk, onClose }: IConfirmModal) => {
+  const handleOk = () => {
+    onOk();
+    onClose();
+  };
+
+  return (
+    <>
+      <div className="confirmModalBackground" />
+      <div className="confirmModal">
+        <div className="confirmModalContent">
+          <div className="confirmModalTitle">{title}</div>
+          <div className="confirmModalInnerContent">
+            {message}
+            <div className="confirmModalButtons">
+              <button onClick={handleOk}>Ok</button>
+              <button onClick={onClose}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      </div>
+    </>
+  );
+};